COVID-19 Cardiovascular Complications: Difference between revisions
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*'''Age''' | *'''Age''' | ||
Mean [[age]] | Mean [[age]] 69.7 years is observed among [[patients]] who experienced Out of [[hospital]] [[Sudden cardiac arrest]] (OHCA) .<ref name="pmidPMID: 32473113">{{cite journal| author=Marijon E, Karam N, Jost D, Perrot D, Frattini B, Derkenne C | display-authors=etal| title=Out-of-hospital cardiac arrest during the COVID-19 pandemic in Paris, France: a population-based, observational study. | journal=Lancet Public Health | year= 2020 | volume= | issue= | pages= | pmid=PMID: 32473113 | doi=10.1016/S2468-2667(20)30117-1 | pmc=7255168 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=32473113 }} </ref> . | ||
*'''Gender''' | *'''Gender''' | ||
Studies show that [[males]] have a slightly higher [[incidence]] of Out of hospital Sudden cardiac arrest (OHCA) as compared to the [[females]].<ref name="pmidPMID: 32473113">{{cite journal| author=Marijon E, Karam N, Jost D, Perrot D, Frattini B, Derkenne C | display-authors=etal| title=Out-of-hospital cardiac arrest during the COVID-19 pandemic in Paris, France: a population-based, observational study. | journal=Lancet Public Health | year= 2020 | volume= | issue= | pages= | pmid=PMID: 32473113 | doi=10.1016/S2468-2667(20)30117-1 | pmc=7255168 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=32473113 }} </ref> | Studies show that [[males]] have a slightly higher [[incidence]] of Out of hospital Sudden cardiac arrest (OHCA) as compared to the [[females]].<ref name="pmidPMID: 32473113">{{cite journal| author=Marijon E, Karam N, Jost D, Perrot D, Frattini B, Derkenne C | display-authors=etal| title=Out-of-hospital cardiac arrest during the COVID-19 pandemic in Paris, France: a population-based, observational study. | journal=Lancet Public Health | year= 2020 | volume= | issue= | pages= | pmid=PMID: 32473113 | doi=10.1016/S2468-2667(20)30117-1 | pmc=7255168 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=32473113 }} </ref> | ||
*'''Race''' | *'''Race''' | ||
A higher [[incidence]] is seen among [[ | A higher [[incidence]] is seen among [[African-Americans]] as compared to the [[Caucasians]].<ref name="pmidPMID: 32380288">{{cite journal| author=Giudicessi JR, Roden DM, Wilde AAM, Ackerman MJ| title=Genetic susceptibility for COVID-19-associated sudden cardiac death in African Americans. | journal=Heart Rhythm | year= 2020 | volume= | issue= | pages= | pmid=PMID: 32380288 | doi=10.1016/j.hrthm.2020.04.045 | pmc=7198426 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=32380288 }} </ref><ref name="pmidPMID: 32558876">{{cite journal| author=Lai PH, Lancet EA, Weiden MD, Webber MP, Zeig-Owens R, Hall CB | display-authors=etal| title=Characteristics Associated With Out-of-Hospital Cardiac Arrests and Resuscitations During the Novel Coronavirus Disease 2019 Pandemic in New York City. | journal=JAMA Cardiol | year= 2020 | volume= | issue= | pages= | pmid=PMID: 32558876 | doi=10.1001/jamacardio.2020.2488 | pmc=7305567 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=32558876 }} </ref> | ||
====Diagnosis==== | ====Diagnosis==== |
Revision as of 03:07, 25 June 2020
COVID-19 Microchapters |
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COVID-19 Cardiovascular Complications On the Web |
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Risk calculators and risk factors for COVID-19 Cardiovascular Complications |
To go to the COVID-19 project topics list, click here.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Mitra Chitsazan, M.D.[2]Mandana Chitsazan, M.D. [3]Tayyaba Ali, M.D.[4]Ayesha Javid, MBBS[5]Mounika Reddy Vadiyala, M.B.B.S.[6]Sara Haddadi, M.D.[7]
Overview
Cardiovascular Complications
Acute Myocardial Injury
Coronavirus disease 2019 (COVID-19) is a rapidly expanding global pandemic which is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), resulting in significant morbidity and mortality. Some hospitalized patients can develop an acute COVID-19 myocardial injury, which can manifest with a variety of clinical presentations but often presents as an acute cardiac injury with cardiomyopathy, ventricular arrhythmias, and hemodynamic instability, acute coronary syndrome, cardiogenic shock. patents with preexisting cardiovascular disease have higher morbidity and mortality.
Myocardial injury
- COVID-19 patients with cardiovascular comorbidities have higher mortality.
- Hospitalized patients with COVID-19 and Cardiovascular disease seem to be more prevalent in both the USA and China. [1]
- In a case series with 187 patients who had confirmed COVID-19, 27.8% of patients had a myocardial injury, which caused cardiac dysfunction and arrhythmias. The result was significantly higher mortality among patients with myocardial injury.
- It seems to be advisable to triage patients with COVID-19 based on their underlying CVD for a more aggressive treatment plan.
- The mortality during hospitalization was shown to be 7.62% for patients without underlying CVD and normal TnT levels, 13.33% for those with underlying CVD and normal TnT levels, 37.50% for those without underlying CVD but elevated TnT levels, and 69.44% for those with underlying CVD and elevated TnTs.[2]
Acute Coronary Syndromes
Pathophysiology
The mechanism of COVID-19 cardiovascular injury has not been fully understood and is likely multifactorial.
- SARS-CoV-2 virus attaches to ACE 2 protein for ligand binding before entering the cell via receptor-mediated endocytosis.
- Based on single-cell RNA sequencing more than 7.5% of myocardial cells have positive ACE2 expression. This protein can mediate the entry of SARS-CoV-2 and result in direct cardiotoxicity.
- The cytokine release caused by the virus may lead to vascular inflammation, plaque instability, myocardial inflammation, a hypercoagulable state, or direct myocardial suppression.
Pathological changes:
- In the level of cardiac tissue: minimal change to interstitial inflammatory infiltration and myocyte necrosis
- In the level of vasculature: micro-thrombosis and vascular inflammation[1]
Signs and Symptoms
The signs and symptoms of acute coronary syndrome include:[3]
- Substernal chest pain
- Occurs at rest or exertion
- Radiation to neck, jaw, left shoulder and left arm
- Aggravated by physical activity and emotional stress
- Relieved by rest, nitroglycerin or both
- Chest discomfort described crushing, squeezing, burning, choking, tightness or aching
- Dyspnea
- Diaphoresis
- Nausea and vomiting
- Fatigue
- Syncope
Treatment
In patients with ACS, and COVID-19, treatment should follow the guidelines of the updated Society for Cardiovascular Angiography and Interventions.[1] [4]
ST-Elevation Myocardial Infarction (STEMI)
A US model from 9 major centers showed a 38% drop in total STEMI activations during the COVID-19 pandemic. There is a 40% reduction noted in Spain as well. there was also a delay between the first presentation to a medical encounter up to 318 min. This is important since COVID-19 can potentially be a cause of STEMI through microthrombi, cytokine storm, coronary spasm, or direct endothelial injury.[5]
- Potential etiologies for the reduction in STEMI PPCI activations:
- avoidance of medical care due to social distancing or concerns of contracting COVID-19 in the hospital
- STEMI misdiagnosis
- increased use of pharmacological reperfusion due to COVID-19
It is very important to realize if patients' anxiety is the reason behind decreasing the presentation of STEMI to U.S. hospitals.[6]
- Treatment of STEMI & COVID-19: The specific protocols for the treatment have been evolving. Early recommendations showed intravenous thrombolysis as first-line therapy for STEMI patients with confirmed COVID-19 since most hospitals do not have protected cardiac catheterization labs.[5]
Heart Failure
Pathophysiology
- Patients with chronic heart failure (HF) may be at higher risk of developing severe COVID-19 infection due to the advanced age and the presence of multiple comorbidities.
- Both de novo acute heart failure and acute decompensation of chronic heart failure can occur in patients with COVID-19.
- Presumed pathophysiologic mechanisms for the development of new or worsening heart failure in patients with COVID-19 include:[7] [8] [9] [10] [11]
- Acute exacerbation of chronic heart failure
- Acute myocardial injury (which in turn can be caused by several mechanisms)
- Stress cardiomyopathy (i.e., Takotsubo cardiomyopathy)
- Impaired myocardial relaxation resulting in diastolic dysfunction [i.e., Heart failure with preserved ejection fraction (HFpEF)]
- Right-sided heart failure, secondary to pulmonary hypertension caused by hypoxia and acute respiratory distress syndrome (ARDS)
Symptoms and signs
- Dyspnea: may overlap with dyspnea due to concomitant respiratory involvement and ARDS due to COVID-19 infection
- Lower limb edema
- Orthopnea
- Paroxysmal nocturnal dyspnea
- Confusion and altered mentation
- Cool extremities
- Cyanosis
- Syncope
- Fatigue
- Hemoptysis
- Palpitations
- Weakness
- Wheezing or cardiac asthma
- Distended jugular veins
- Crackles on auscultation
Electrocardiography (ECG)
- There is no specific electrocardiographic sign for acute heart failure in COVID-19 patients.
- The ECG may help in identifying preexisting cardiac abnormalities and precipitating factors such as ischemia, myocarditis, and arrhythmias.
- These ECG findings may include:
- Low QRS Voltage
- Left ventricular hypertrophy
- Left atrial enlargement
- Left bundle branch block
- Poor R progression
- ST-T changes
Chest x-ray (CXR)
- The Chest x-ray may show evidence of:
- Cardiomegaly
- Pulmonary congestion
- Increased pulmonary vascular markings.
- Signs of pulmonary edema may be obscured by underlying respiratory involvement and ARDS due to COVID-19.
Echocardiography
- A complete standard transthoracic (TTE) has not been recommended in COVID-19 patients considering the limited personal protective equipment (PPE) and the risk of exposure of additional health care personnel.[12]
- To deal with limited resources (both personal protective equipment and personnel) and reducing the exposure time of personnel, a focused TTE to find gross abnormalities in cardiac structure/function seems satisfactory.
- In addition, bedside options, which may be performed by the trained personnel who might already be in the room with these patients, might also be considered. These include:
- Cardiac point-of-care ultrasound (POCUS)
- Focused cardiac ultrasound study (FoCUS)
- Critical care echocardiography
- Cardiac ultrasound can help in assessing the following parameters:
- Left ventricular systolic function (ejection fraction) to distinguish systolic dysfunction with a reduced ejection fraction (<40%) from diastolic dysfunction with a preserved ejection fraction.
- Left ventricular diastolic function
- Left ventricular structural abnormalities, including LV size and LV wall thickness
- Left atrial size
- Right ventricular size and function
- Detection and quantification of valvular abnormalities
- Measurement of systolic pulmonary artery pressure
- Detection and quantification of pericardial effusion
- Detection of regional wall motion abnormalities/reduced strain that would suggest an underlying ischemia
Cardiac biomarkers
- Cardiac Troponins:
- Elevated cardiac troponin levels suggest the presence of myocardial cell injury or death.
- Cardiac troponin levels may increase in patients with chronic or acute decompensated HF.[13]
- Natriuretic Peptides:
- Natriuretic peptides (BNP/NT-proBNP) are released from the heart in response to increased myocardial stress and are quantitative markers of increased intracardiac filling pressure.[14]
- Elevated BNP and NT-proBNP are of both diagnostic and prognostic significance in patients with heart failure.
- Increased BNP or NT-proBNP levels have been demonstrated in COVID-19 patients.
- Increased NT-proBNP level was associated with worse clinical outcomes in patients with severe COVID-19.[15] [16]
- However, increased natriuretic peptide levels are frequently seen among patients with severe inflammatory or respiratory diseases.[17] [18] [19] [20] [21]
- Therefore, routine measurement of BNP/NT-proBNP has not been recommended in COVID-19 patients, unless there is a high suspicion of HF based on clinical grounds.
Treatment
- Patients with chronic heart failure are recommended to continue their previous guideline-directed medical therapy, including beta-blockers, ACEI or ARB, and mineralocorticoid receptor antagonists. [22]
- Acute heart failure in the setting of COVID-19 is generally treated similarly to acute heart failure in other settings. These may include:
- Fluid restriction
- Diuretic therapy
- Vasopressors and/or inotropes
- Ventricular assisted devices and extracorporeal membrane oxygenation (ECMO)
- Beta-blockers should not be initiated during the acute stage due to their negative inotropic effects.[23]
- Nonsteroidal Anti-Inflammatory Drugs (NSAIDs) should be used with caution in patients with acute heart failure due to their effect on fluid and sodium retention.[24]
Cardiogenic Shock
Myocarditis
Pathophysiology
- Studies have demonstrated that COVID-19 interacts with the cardiovascular system, thereby causing myocardial injury and dysfunction as well as increasing morbidity among patients with underlying cardiovascular conditions.
- Among patients with COVID-19, there is a high prevalence of cardiovascular disease, and >7% of patients experience myocardial injury from the infection.[25]
- Myocarditis is an inflammatory disease of the heart characterized by inflammatory infiltrates and myocardial injury without an ischemic cause.[26]
- The major cause of myocarditis in the United States and other developed countries is viral.[27] [28]
- A number of cases of myocarditis have been reported in COVID-19 patients.[29][30][31][32]
- Myocarditis has also been reported as the cause of death in some COVID-19 patients.[33]
- The mechanism is unknown, though several have been proposed based on the limited data outside of case reports.
- Proposed pathophysiology of SARS-CoV-2 myocarditis
- SARS-CoV-2 infection is caused by binding of the viral surface spike protein (primed by TMPRSS2 - Transmembrane Protease Serine 2) to the human angiotensin-converting enzyme 2 (ACE2) receptor.[34]
- ACE2 is expressed in the lung, principally type II alveolar cells which appears to be the principal portal of entry.[35]
- ACE2 is highly expressed in the heart as well.[36]
- Naive T lymphocytes can be primed for viral antigens via antigen-presenting cells and cardio-tropism by the heart-produced hepatocyte growth factor (HGF) which binds c-Met, an HGF receptor on T lymphocytes.[37]
- The primed CD8+ T lymphocytes migrate to the cardiomyocytes and through cell-mediated cytotoxicity, cause myocardial inflammation.
- In the cytokine storm syndrome, proinflammatory cytokines such as Interleukin-6 (IL-6) are released into the circulation, which further augments T-lymphocyte activation and causes the release of more cytokines.[38]
- Cytokine storms result in increased vascular wall permeability and myocardial edema.[31][29]
- Thus a positive feedback loop of immune activation and myocardial damage is established.[39][26]
- Other proposed mechanism includes damage to myocardial cells resulting from respiratory dysfunction and hypoxemia due to COVID-19.
- Pathological changes in the myocardium
- They could be due to viral replication in the myocardium or immune responses caused by the infection or due to systemic responses to respiratory failure.
- Mononuclear inflammatory infiltration has been observed in the heart tissue in COVID-19 autopsy studies.[40]
Signs and symptoms
Clinical presentation of SARS-CoV-2 myocarditis varies among cases from mild to severe to fulminant.
- Mild - fatigue and dyspnea,[30][31], chest pain or chest tightness on exertion.[29][32]
- Severe - Many patients deteriorate and show symptoms of tachycardia and acute-onset heart failure with cardiogenic shock.[29][30][31] They may also present with signs of right-sided heart failure, including raised jugular venous pressure, right upper quadrant pain, and peripheral edema.[28]
- Fulminant - Fulminant myocarditis is defined as ventricular dysfunction and heart failure within 2–3 weeks of infection.[26][41][42][43] The early signs resemble those of sepsis: fever, low pulse pressure, cold extremities, and sinus tachycardia.[28][29]
According to a study, ventricular arrhythmias are also seen in the patients of myocarditis.[44]
Diagnostic testing
- Biomarkers:
- Inflammatory biomarkers:
- Elevated levels of inflammatory markers including erythrocyte sedimentation rate, C reactive protein, and procalcitonin are usually seen in myocarditis but they are non-specific and do not confirm the diagnosis. Increases levels of Interleukin-6 (IL-6), d-dimer, serum ferritin, prothrombin time were seen in COVID-19 patients.[45][38]
- Cardiac biomarkers:
- Levels of cardiac enzymes such as cardiac troponins (cardiac troponin I(cTnI), cardiac troponin T (cTnT)) and natriuretic peptides (N-terminal pro-B-type natriuretic peptide (NT-proBNP), and Brain natriuretic peptide (BNP)) usually are elevated in myocarditis due to acute myocardial injury and possible ventricular dilation.
- Elevations of both troponin and NT-proBNP levels were observed in the COVID-19–related myocarditis cases.[29][30][31][32][41][46]
- Elevated NT-pro-BNP level has been associated with worse clinical outcomes in severe COVID-19 patients.[47][48]
- Cardiac troponins and brain natriuretic peptides are sensitive but non-specific in the diagnosis of myocarditis.[49][50][51]
- Although a negative troponin result cannot exclude myocarditis, negative serial high-sensitivity cardiac troponin (hs-cTn) still is helpful in the acute phase and makes the diagnosis of acute myocarditis significantly less likely.[52]
- Inflammatory biomarkers:
- Electrocardiogram
- ECG is usually abnormal in myocarditis but it is neither sensitive nor specific in the diagnosis.[53][27]
- ECG abnormalities ST-elevation and PR depression may be observed in myocarditis in COVID-19 patients.[30][27][41]
- However, these abnormalities are not sensitive in detecting myocarditis in COVID-19. For example, one COVID-19–related myocarditis case showed neither ST-elevation nor PR depression.[29]
- Other ECG abnormalities, including new-onset bundle branch block, premature ventricular complexes, QT prolongation, and bradyarrhythmia with advanced atrioventricular nodal block, can be observed in myocarditis.[31]
The American Heart Association (AHA) recommends further testing with 1 or more cardiac imaging methods such as an echocardiogram or cardiovascular magnetic resonance (CMR) for patients having signs consistent with myocarditis.[28] However, echocardiogram or cardiac imaging can be avoided or delayed until recovery from COVID-19 in the patients with COVID-19 and myocardial injury who are hemodynamically and electrophysiologically stable with mild to moderate elevations of troponin unless the patient clinically deteriorates and develops hemodynamic instability, shock, ventricular arrhythmias, or a severely elevated or rapidly rising troponins.[54]
- Echocardiography:
- The prominent signs of myocarditis on an echocardiogram are increased wall thickness, chamber dilation, diffuse hypokinesia/dyskinesia, and pericardial effusion in the background of ventricular systolic dysfunction.[55][56][27]
- These findings were noted in COVID-19 related myocarditis cases.[31][30][29]
- Cardiac Magnetic Resonance:
- Cardiac Magnetic resonance (CMR) has major imaging advantages with highest diagnostic accuracy over echocardiography[57], but it has limitations of availability, the requirement for some breath-holding, the requirement for deep cleaning after use given the high contagious risk of COVID-19 and slower throughput.
- If CMR is performed, revised Lake Louise consensus criteria are used to interpret the results.[58] 1) edema 2) irreversible cell injury 3) hyperemia or capillary leak.
- In all of the SARS-CoV-2–related myocarditis cases for which CMR results were reported, myocardial edema and/or scarring were observed.[30][31][32]
- Cardiac Computed Tomography
- Cardiac Computed Tomography scan (CT scan) with contrast enhancement and ECG gating is an effective alternative to CMR in terms of rapid testing and minimal requirement of breath-holding, especially when the patient has to undergo a high-resolution CT scan (HRCT) of the chest for assessment of acute respiratory distress syndrome.
- Myocardial hypertrophy due to edema was observed in COVID -19 related myocarditis.[31]
- Endomyocardial biopsy:
- Endomyocardial biopsy (EMB) has been recommended as the definitive diagnostic tool for myocarditis by the American Heart Association (AHA) and European Society of Cardiology (ESC).[59] In non–COVID-19 cases, endomyocardial biopsy has traditionally been recommended in fulminant presentations to exclude the rare presentation of eosinophilic, hypersensitive,and giant-cell myocarditis.[60] However, in COVID-19, it may not be feasible because of the instability of the patient, requirement of expertise, false-negative rate and risk of contagiousness, especially if the biopsy results would not change clinical management.[27][28][57]
- EMB samples if obtained should be tested for inflammatory infiltrates and for the presence of viral genomes by DNA/RNA extraction.[27]
- In a COVID-19 case reported, EMB showed diffuse T-lymphocytic inflammatory infiltrates with huge interstitial edema and no replacement fibrosis, suggesting an acute inflammatory process. SARS-CoV-2 genome was absent within the myocardium in molecular analysis.[32]
Treatment
- There is no definitive treatment for COVID-19-related-myocarditis.
- As per AHA recommendations, in the patients of fulminant myocarditis, initial management includes the protocol of cardiogenic shock which is the administration of inotropes and/vasopressors and mechanical ventilation[30][42]; and use of extracorporeal membrane oxygenation(ECMO), ventricular assistive devices (VAD) in severe cases.[29][61][41] This protocol has been the mainstay of treatment in COVID-19-related-myocarditis cases as well and proved beneficial in mitigating ventricular systolic dysfunction.
- Though the ESC did not approve the use of intravenous immunoglobulins (IVIG) and corticosteroids in active-infection myocarditis, COVID-19 related myocarditis cases have been reported in which use of immunoglobulins and corticosteroids have been successful.[42][29][30][46]
- Tocilizumab, an anti–IL-6 receptor monoclonal antibody, is being tested in a randomized controlled trial of COVID-19 patients with raised IL-6 levels.[62] This might be beneficial in the setting of cytokine storm syndrome and help reduce myocardial inflammation.[52]
Pericarditis
Pericarditis is a rare manifestation of COVID-19. There are very few case reports of pericarditis in COVID-19 patients.[63][30][64][65]
Pathophysiology
- Viral infections are a common cause of pericarditis. It is hypothesized that viruses cause pericardial inflammation via direct cytotoxic effects or via immune-mediated mechanisms.[66]
- COVID-19 has been reported to trigger an exaggerated inflammatory response in patients which might be leading to pericarditis and subsequent pericardial effusion in certain patients; however, the exact mechanism is unclear.
Signs and Symptoms
- Fever
- Chest pain
- Dyspnea
Diagnostic testing
- Electrocardiogram: ST-elevation and PR depression are seen in pericarditis but it is not specific in COVID-19-related pericarditis.
- Imaging: On imaging by echocardiography and CT chest, the reported cases showed pericardial effusion. In two of the reported cases, late gadolinium sequences of CMR done to rule out myocarditis also showed extensive enhancement of the walls of the heart and the pericardium.[64][30]
Treatment
Arrhythmias
Pathophysiology:
- Respiratory disease is the chief target of Coronavirus disease 2019 (COVID-19).
- One-third of patients with severe disease also reported other symptoms including arrhythmia. According to a study done in Wuhan, China, 16.7% of hospitalized and 44.4% of ICU patients with COVID-19 had arrhythmias.
- Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) utilizes S-spike to bind to angiotensin-converting enzyme 2 (ACE2) receptors to enter the cells.
- Type 1 and type 2 pneumocytes exhibit ACE 2 receptors in the lung. Studies report that coronary endothelial cells in the heart and intrarenal endothelial cells and renal tubular epithelial cells in the kidney exhibit ACE2. ACE2 is an inverse regulator of the renin-angiotensin system.
- The interaction between SARS-CoV2 and ACE2 can bring about changes in ACE2 pathways prompting intense injury to the lung, heart, and endothelial cells. Hypoxia and electrolyte abnormalities that are common in the acute phase of severe COVID-19 can potentiate cardiac arrhythmias.
- Binding of SARS-CoV-2 to ACE2 receptors can result into hypokalemia which causes various types of arrhythmia.
- Elevated levels of cytokines as a result of the systemic inflammatory response of the severe Coronavirus disease 2019 (COVID-19) can cause injury to multiple organs, including cardiac myocytes.
- According to the data based on studies on previous Severe acute respiratory syndrome (SARS) and the Middle East respiratory syndrome (MERS) epidemic and the ongoing COVID-19 outbreak, multiple mechanisms have been suggested for cardiac damage.[67][40][68][25]
Signs and Symptoms:
Arrhythmia or conduction system disease is the nonspecific clinical presentation of COVID-19. Patients may be tachycardic (with or without palpitations) in the setting of other COVID-19-related symptoms (eg, fever, shortness of breath, pain, etc).
- Palpitations: According to a study done in Hubei province,palpitations were reported as a presenting symptom by 7.3 percent of patients.[69][70]
- Prolong QT Interval: According to a multicenter study done in New York that involved 4250 COVID-19 patients, 260 patients (6.1 percent) had corrected QT interval (QTc) >500 milliseconds at the time of admittance. However, in another study that involved 84 patients who got hydroxychloroquine and azithromycin, the baseline QTc interval was 435 milliseconds before receiving these medications.[71][72]
- Atrial Arrhythmia: According to a study, among 393 patients with COVID-19, atrial arrhythmias were more common among patients requiring invasive mechanical ventilation than noninvasive mechanical ventilation (17.7 versus 1.9 percent).[73]
- Ventricular Arrhythmia: According to a study done in Wuhan, China. among 187 hospitalized patients with COVID-19, 11 patients (5.9 percent) developed ventricular tachyarrhythmias.[2]
- Cardiac Arrest: According to a Lombardia Cardiac Arrest Registry (Lombardia CARe) of the region Lombardia in Italy. Out of 9806 cases of COVID-19, 362 cases of out-of-hospital cardiac arrest were reported during the study time frame in 2020. During a similar period in 2019, 229 cases of out-of-hospital cardiac arrest were reported, which means an increment of 58% was observed in 2020 among COVID-19 patients. According to the records from a tertiary care hospital in Wuhan. Out of 761 patients with severe COVID-19, 151 patients developed in-hospital cardiac arrest. 136 patients received resuscitation. Out of 136 patients, 119 patients had a respiratory cause. 10 patients had a cardiac cause. 7 patients had other causes. Ventricular fibrillation or pulseless ventricular tachycardia was observed in 8 patients (5.9%), Pulseless electrical activity in 6 patients (4.4%), and asystole in 122 COVID-19 patients (89.7%).[74][75]
Diagnostic Testing:
- ECG: Most patients with the severe COVID-19, and especially patients who receive QT-prolonging medications, should have a baseline electrocardiogram (ECG) performed at the time of admission to the hospital.The best technique to get the QT interval is with a 12-lead electrocardiogram (ECG). However, to scale back exposure to hospital workers, this could not perpetually be possible. A single-lead ECG might underestimate the QT interval, and there ought to be an effort to use a multiple-lead telemetry system to observe the QT interval.[76][77]
- Transthoracic echocardiography: Transthoracic echocardiography is recommended for an inpatient with heart failure, arrhythmia, ECG changes, or newly diagnosed cardiomegaly on chest x-ray or CT-chest.[30]
Treatment:
- Polymorphic Ventricular Tachycardia (torsades de pointes): All patients with torsades de pointes (TdP) should be determined if they are hemodynamically stable or unstable through immediate evaluation of the symptoms, vital signs, and level of consciousness.[78]
- Unstable patients: Patients with COVID-19 with sustained torsades de pointes (TdP) usually become hemodynamically unstable, severely symptomatic because of perfusion failure, or pulseless and should be treated according to standard resuscitation algorithms, including cardioversion/defibrillation. Initial treatment with antiarrhythmic medications is not indicated for hemodynamically unstable or pulseless patients except intravenous (IV) magnesium.
- Stable patients: In a patient with a single episode of TdP, treatment with IV magnesium along with correction of metabolic/electrolyte disturbances or removal of any inciting medications may be sufficient. The patient should be kept under observation until the electrolytes, and the QT interval nearly normalizes. An IV bolus of 2-gram magnesium sulfate is the standard therapy for an adult. This is equivalent to a dose of 8.12 mmol of magnesium. The clinical situation of a patient determines the rate of magnesium infusion. Infusion occurs over one to two minutes in patients with pulseless cardiac arrest. The infusion should occur over 15 minutes in patients without cardiac arrest as a rapid IV bolus of magnesium can result in hypotension and asystole. Some patients are given a continuous bolus of IV magnesium at a rate of 3 to 20 mg/min until the QT interval is below 0.50 seconds.[79][80]
- Other Cardiac arrhythmia: The treatment for other arrhythmias in COVID-19 patients is the same as in patients with arrhythmias without COVID-19 infection.
Out-of-hospital cardiac arrest and Sudden Cardiac Death
The sudden cardiac death is defined as the death that occurs within one hour of onset of symptoms in witnessed cases and within 24 hours of last being seen alive when it is unwitnessed.[81] Out-of-hospital cardiac arrest means cessation of cardiac mechanical activity that occurs outside of the hospital setting and is confirmed by the absence of signs of circulation.
Pathophysiology
- Drug induced:
Since the COVID-19 pandemic, several pharmacological therapies have been proposed, one of them is of two anti-malarial and antirheumatic drugs called Chloroquine or Hydroxychloroquine. Due to their cost-effectiveness and easy availability, there is a surge in the use of Chloroquine and Hydroxychloroquine, with or without Azithromycin. The clinical trials in order to estimate their efficacy are still in the preliminary stage, however, a notable concern is of their cardiac adverse effects. This includes QT prolongation and Torsade de pointes (TdP) leading to sudden cardiac death. The risk is there when these drugs are prescribed separately, however it increases several folds when these drugs are administered together, especially in patients with underlying hepatic disease or renal failure.[82]
- Genetic susceptibility:
Epidemiological studies have shown that African Americans have higher COVID-19 associated morbidity and mortality as compared to people from other ethnic groups. Recent studies show that this ethnic predilection is due to the genetic factors which contribute to a common ion channel variant p.Ser1103Tyr-SCN5A which confer an increased risk of drug-induced long QT syndrome (DI-LQTS) and drug-induced sudden cardiac death (DI-SCD). p.Ser1103Tyr-SCN5A generates late or persistent sodium current which is further aggravated by hypoxia or respiratory acidosis secondary to lungs involvement in COVID-19. This has and has been linked to an increased risk of ventricular arrhythmia (VA) such as torsade de pointes and sudden cardiac death (SCD) in African Americans.[83]
- Cytokine storm and heart damage:
- Pre-existing heart disease
Epidemiology
- Incidence
There is a two-times rise in the incidence of Out of hospital Sudden cardiac arrest (OHCA) during the COVID-19 pandemic as compared to the non-pandemic time period.[84]
- Mortality
There is a significant increase in the mortality rate of the OHCA patients.[84]
- Age
Mean age 69.7 years is observed among patients who experienced Out of hospital Sudden cardiac arrest (OHCA) .[84] .
- Gender
Studies show that males have a slightly higher incidence of Out of hospital Sudden cardiac arrest (OHCA) as compared to the females.[84]
- Race
A higher incidence is seen among African-Americans as compared to the Caucasians.[83][85]
Diagnosis
- EKG
- A patient experiencing sudden cardiac death can have ventricular fibrillation associated ECG changes such as ventricular tachycardia with irregular rhythm and indiscernible P waves or QRS complexes.[86]
- Heart block.[86]
- Pulseless electrical activity.[86] [87]
- Other abnormal ECG findings include QT prolongation. ECG shows corrected QT interval (QTc) more than 500 ms.[88].
- Asystole.[86] [87]
Treatment
- Cardiopulmonary resuscitation
- Immediate basic life support or advanced cardiac life support with an automatic external defibrillator is essential to safe the life of the patient. If the COVID-19 infection was confirmed, the EMS personnel is instructed to wear personal protective equipment (PPE) before performing cardiopulmonary resuscitation.[89]
- Implantable Cardioverter Defibrillator (ICD)
- An Implantable cardioverter defibrillator (ICD) is the preferred therapeutic modality in most survivors of sudden cardiac death.[90] This device does not prevent the recurrence of arrhythmia, instead, it terminates them in case if they do recur.
- Pharmacologic therapy in survivors of sudden cardiac arrest
- Antiarrhythmic drugs: Amiodarone is the most effective for preventing recurrent ventricular tachyarrhythmias. It is recommended to immediately give Amiodarone following an event of sudden cardiac arrest in patients with recurrent ventricular tachyarrhythmias as well as for those who have refused Implantable Cardioverter Defibrillator (ICD).[91]
- Beta blocker:It is recommended that almost all patients who survive an episode of sudden cardiac arrest should receive a beta-blocker as part of their therapy in combination with an antiarrhythmic drug, particularly in those patients who have survived sudden cardiac death due to ventricular tachycardia or ventricular fibrillation. Beta-blockers has shown to reduce the future incidence of sudden cardiac death.[92]
Prevention
- Identification and treatment of acute reversible causes of sudden cardiac death.[93]
- Evaluation and management of structural heart disease and arrhythmia.[86]
Spontaneous Coronary Artery Dissection
Pathophysiology
- In patients with an inflammatory overload, a localized inflammation of the coronary adventitia and periadventitial fat can occur. This could lead to the development of sudden coronary artery dissection in a susceptible patient.
Signs and symptoms
Treatment
References
- ↑ 1.0 1.1 1.2 Kang Y, Chen T, Mui D, Ferrari V, Jagasia D, Scherrer-Crosbie M; et al. (2020). "Cardiovascular manifestations and treatment considerations in covid-19". Heart. doi:10.1136/heartjnl-2020-317056. PMC 7211105 Check
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value (help). PMID 32354800 Check|pmid=
value (help). - ↑ 2.0 2.1 Guo T, Fan Y, Chen M, Wu X, Zhang L, He T; et al. (2020). "Cardiovascular Implications of Fatal Outcomes of Patients With Coronavirus Disease 2019 (COVID-19)". JAMA Cardiol. doi:10.1001/jamacardio.2020.1017. PMC 7101506 Check
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value (help). - ↑ Abidov A, Rozanski A, Hachamovitch R, Hayes SW, Aboul-Enein F, Cohen I; et al. (2005). "Prognostic significance of dyspnea in patients referred for cardiac stress testing". N Engl J Med. 353 (18): 1889–98. doi:10.1056/NEJMoa042741. PMID 16267320. Review in: Evid Based Med. 2006 Jun;11(3):91
- ↑ Szerlip M, Anwaruddin S, Aronow HD, Cohen MG, Daniels MJ, Dehghani P; et al. (2020). "Considerations for cardiac catheterization laboratory procedures during the COVID-19 pandemic perspectives from the Society for Cardiovascular Angiography and Interventions Emerging Leader Mentorship (SCAI ELM) Members and Graduates". Catheter Cardiovasc Interv. doi:10.1002/ccd.28887. PMID 32212409 Check
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value (help). - ↑ 5.0 5.1 Ullah W, Sattar Y, Saeed R, Ahmad A, Boigon MI, Haas DC; et al. (2020). "As the COVID-19 pandemic drags on, where have all the STEMIs gone?". Int J Cardiol Heart Vasc. 29: 100550. doi:10.1016/j.ijcha.2020.100550. PMC 7261452 Check
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value (help). PMID 32550258 Check|pmid=
value (help). - ↑ Garcia S, Albaghdadi MS, Meraj PM, Schmidt C, Garberich R, Jaffer FA; et al. (2020). "Reduction in ST-Segment Elevation Cardiac Catheterization Laboratory Activations in the United States During COVID-19 Pandemic". J Am Coll Cardiol. 75 (22): 2871–2872. doi:10.1016/j.jacc.2020.04.011. PMC 7151384 Check
|pmc=
value (help). PMID 32283124 Check|pmid=
value (help). - ↑ PMID 32219357 (PMID 32219357)
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Citation will be completed automatically in a few minutes. Jump the queue or expand by hand - ↑ PMID 31129923 (PMID 31129923)
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Citation will be completed automatically in a few minutes. Jump the queue or expand by hand - ↑ PMID 12656651 (PMID 12656651)
Citation will be completed automatically in a few minutes. Jump the queue or expand by hand - ↑ 25.0 25.1 Clerkin, Kevin J.; Fried, Justin A.; Raikhelkar, Jayant; Sayer, Gabriel; Griffin, Jan M.; Masoumi, Amirali; Jain, Sneha S.; Burkhoff, Daniel; Kumaraiah, Deepa; Rabbani, LeRoy; Schwartz, Allan; Uriel, Nir (2020). "COVID-19 and Cardiovascular Disease". Circulation. 141 (20): 1648–1655. doi:10.1161/CIRCULATIONAHA.120.046941. ISSN 0009-7322.
- ↑ 26.0 26.1 26.2 Esfandiarei, Mitra; McManus, Bruce M. (2008). "Molecular Biology and Pathogenesis of Viral Myocarditis". Annual Review of Pathology: Mechanisms of Disease. 3 (1): 127–155. doi:10.1146/annurev.pathmechdis.3.121806.151534. ISSN 1553-4006.
- ↑ 27.0 27.1 27.2 27.3 27.4 27.5 Caforio, A. L. P.; Pankuweit, S.; Arbustini, E.; Basso, C.; Gimeno-Blanes, J.; Felix, S. B.; Fu, M.; Helio, T.; Heymans, S.; Jahns, R.; Klingel, K.; Linhart, A.; Maisch, B.; McKenna, W.; Mogensen, J.; Pinto, Y. M.; Ristic, A.; Schultheiss, H.-P.; Seggewiss, H.; Tavazzi, L.; Thiene, G.; Yilmaz, A.; Charron, P.; Elliott, P. M. (2013). "Current state of knowledge on aetiology, diagnosis, management, and therapy of myocarditis: A position statement of the European Society of Cardiology Working Group on Myocardial and Pericardial Diseases". European Heart Journal. 34 (33): 2636–2648. doi:10.1093/eurheartj/eht210. ISSN 0195-668X.
- ↑ 28.0 28.1 28.2 28.3 28.4 Kociol, Robb D.; Cooper, Leslie T.; Fang, James C.; Moslehi, Javid J.; Pang, Peter S.; Sabe, Marwa A.; Shah, Ravi V.; Sims, Daniel B.; Thiene, Gaetano; Vardeny, Orly (2020). "Recognition and Initial Management of Fulminant Myocarditis". Circulation. 141 (6). doi:10.1161/CIR.0000000000000745. ISSN 0009-7322.
- ↑ 29.0 29.1 29.2 29.3 29.4 29.5 29.6 29.7 29.8 29.9 Zeng, Jia-Hui; Liu, Ying-Xia; Yuan, Jing; Wang, Fu-Xiang; Wu, Wei-Bo; Li, Jin-Xiu; Wang, Li-Fei; Gao, Hong; Wang, Yao; Dong, Chang-Feng; Li, Yi-Jun; Xie, Xiao-Juan; Feng, Cheng; Liu, Lei (2020). "First case of COVID-19 complicated with fulminant myocarditis: a case report and insights". Infection. doi:10.1007/s15010-020-01424-5. ISSN 0300-8126.
- ↑ 30.00 30.01 30.02 30.03 30.04 30.05 30.06 30.07 30.08 30.09 30.10 30.11 Inciardi, Riccardo M.; Lupi, Laura; Zaccone, Gregorio; Italia, Leonardo; Raffo, Michela; Tomasoni, Daniela; Cani, Dario S.; Cerini, Manuel; Farina, Davide; Gavazzi, Emanuele; Maroldi, Roberto; Adamo, Marianna; Ammirati, Enrico; Sinagra, Gianfranco; Lombardi, Carlo M.; Metra, Marco (2020). "Cardiac Involvement in a Patient With Coronavirus Disease 2019 (COVID-19)". JAMA Cardiology. doi:10.1001/jamacardio.2020.1096. ISSN 2380-6583.
- ↑ 31.0 31.1 31.2 31.3 31.4 31.5 31.6 31.7 31.8 Han, Seongwook; Kim, Hyun Ah; Kim, Jin Young; Kim, In-Cheol (2020). "COVID-19-related myocarditis in a 21-year-old female patient". European Heart Journal. 41 (19): 1859–1859. doi:10.1093/eurheartj/ehaa288. ISSN 0195-668X.
- ↑ 32.0 32.1 32.2 32.3 32.4 Esposito, Antonio; Godino, Cosmo; Basso, Cristina; Cappelletti, Alberto Maria; Tresoldi, Moreno; De Cobelli, Francesco; Vignale, Davide; Villatore, Andrea; Palmisano, Anna; Gramegna, Mario; Peretto, Giovanni; Sala, Simone (2020). "Acute myocarditis presenting as a reverse Tako-Tsubo syndrome in a patient with SARS-CoV-2 respiratory infection". European Heart Journal. 41 (19): 1861–1862. doi:10.1093/eurheartj/ehaa286. ISSN 0195-668X.
- ↑ Ruan, Qiurong; Yang, Kun; Wang, Wenxia; Jiang, Lingyu; Song, Jianxin (2020). "Clinical predictors of mortality due to COVID-19 based on an analysis of data of 150 patients from Wuhan, China". Intensive Care Medicine. 46 (5): 846–848. doi:10.1007/s00134-020-05991-x. ISSN 0342-4642.
- ↑ Hoffmann, Markus; Kleine-Weber, Hannah; Schroeder, Simon; Krüger, Nadine; Herrler, Tanja; Erichsen, Sandra; Schiergens, Tobias S.; Herrler, Georg; Wu, Nai-Huei; Nitsche, Andreas; Müller, Marcel A.; Drosten, Christian; Pöhlmann, Stefan (2020). "SARS-CoV-2 Cell Entry Depends on ACE2 and TMPRSS2 and Is Blocked by a Clinically Proven Protease Inhibitor". Cell. 181 (2): 271–280.e8. doi:10.1016/j.cell.2020.02.052. ISSN 0092-8674.
- ↑ Zhao, Yu; Zhao, Zixian; Wang, Yujia; Zhou, Yueqing; Ma, Yu; Zuo, Wei (2020). doi:10.1101/2020.01.26.919985. Missing or empty
|title=
(help) - ↑ Tikellis, Chris; Thomas, M. C. (2012). "Angiotensin-Converting Enzyme 2 (ACE2) Is a Key Modulator of the Renin Angiotensin System in Health and Disease". International Journal of Peptides. 2012: 1–8. doi:10.1155/2012/256294. ISSN 1687-9767.
- ↑ Komarowska, Izabela; Coe, David; Wang, Guosu; Haas, Robert; Mauro, Claudio; Kishore, Madhav; Cooper, Dianne; Nadkarni, Suchita; Fu, Hongmei; Steinbruchel, Daniel A.; Pitzalis, Costantino; Anderson, Graham; Bucy, Pat; Lombardi, Giovanna; Breckenridge, Ross; Marelli-Berg, Federica M. (2015). "Hepatocyte Growth Factor Receptor c-Met Instructs T Cell Cardiotropism and Promotes T Cell Migration to the Heart via Autocrine Chemokine Release". Immunity. 42 (6): 1087–1099. doi:10.1016/j.immuni.2015.05.014. ISSN 1074-7613.
- ↑ 38.0 38.1 Zhou, Fei; Yu, Ting; Du, Ronghui; Fan, Guohui; Liu, Ying; Liu, Zhibo; Xiang, Jie; Wang, Yeming; Song, Bin; Gu, Xiaoying; Guan, Lulu; Wei, Yuan; Li, Hui; Wu, Xudong; Xu, Jiuyang; Tu, Shengjin; Zhang, Yi; Chen, Hua; Cao, Bin (2020). "Clinical course and risk factors for mortality of adult inpatients with COVID-19 in Wuhan, China: a retrospective cohort study". The Lancet. 395 (10229): 1054–1062. doi:10.1016/S0140-6736(20)30566-3. ISSN 0140-6736.
- ↑ Iakimov VP (1977). "[F. Engels' theory of the origin of man and modern anthropologic findings]". Arkh Anat Gistol Embriol. 72 (6): 5–11. PMID 409380.
- ↑ 40.0 40.1 Xu, Zhe; Shi, Lei; Wang, Yijin; Zhang, Jiyuan; Huang, Lei; Zhang, Chao; Liu, Shuhong; Zhao, Peng; Liu, Hongxia; Zhu, Li; Tai, Yanhong; Bai, Changqing; Gao, Tingting; Song, Jinwen; Xia, Peng; Dong, Jinghui; Zhao, Jingmin; Wang, Fu-Sheng (2020). "Pathological findings of COVID-19 associated with acute respiratory distress syndrome". The Lancet Respiratory Medicine. 8 (4): 420–422. doi:10.1016/S2213-2600(20)30076-X. ISSN 2213-2600.
- ↑ 41.0 41.1 41.2 41.3 Irabien-Ortiz, Ángela; Carreras-Mora, José; Sionis, Alessandro; Pàmies, Julia; Montiel, José; Tauron, Manel (2020). "Fulminant myocarditis due to COVID-19". Revista Española de Cardiología (English Edition). 73 (6): 503–504. doi:10.1016/j.rec.2020.04.005. ISSN 1885-5857.
- ↑ 42.0 42.1 42.2 Fang, Yuan; Wei, Xin; Ma, Fenglian; Hu, Hongde (2020). "Coronavirus fulminant myocarditis treated with glucocorticoid and human immunoglobulin". European Heart Journal. doi:10.1093/eurheartj/ehaa190. ISSN 0195-668X.
- ↑ Wang, Daowen; Li, Sheng; Jiang, Jiangang; Yan, Jiangtao; Zhao, Chunxia; Wang, Yan; Ma, Yexin; Zeng, Hesong; Guo, Xiaomei; Wang, Hong; Tang, Jiarong; Zuo, Houjuan; Lin, Li; Cui, Guanglin (2018). "Chinese society of cardiology expert consensus statement on the diagnosis and treatment of adult fulminant myocarditis". Science China Life Sciences. 62 (2): 187–202. doi:10.1007/s11427-018-9385-3. ISSN 1674-7305.
- ↑ Peretto, Giovanni; Sala, Simone; Rizzo, Stefania; Palmisano, Anna; Esposito, Antonio; De Cobelli, Francesco; Campochiaro, Corrado; De Luca, Giacomo; Foppoli, Luca; Dagna, Lorenzo; Thiene, Gaetano; Basso, Cristina; Della Bella, Paolo (2020). "Ventricular Arrhythmias in Myocarditis". Journal of the American College of Cardiology. 75 (9): 1046–1057. doi:10.1016/j.jacc.2020.01.036. ISSN 0735-1097.
- ↑ Shi, Shaobo; Qin, Mu; Shen, Bo; Cai, Yuli; Liu, Tao; Yang, Fan; Gong, Wei; Liu, Xu; Liang, Jinjun; Zhao, Qinyan; Huang, He; Yang, Bo; Huang, Congxin (2020). "Association of Cardiac Injury With Mortality in Hospitalized Patients With COVID-19 in Wuhan, China". JAMA Cardiology. doi:10.1001/jamacardio.2020.0950. ISSN 2380-6583.
- ↑ 46.0 46.1 Doyen, Denis; Moceri, Pamela; Ducreux, Dorothée; Dellamonica, Jean (2020). "Myocarditis in a patient with COVID-19: a cause of raised troponin and ECG changes". The Lancet. 395 (10235): 1516. doi:10.1016/S0140-6736(20)30912-0. ISSN 0140-6736.
- ↑ Gao, Lei; Jiang, Dan; Wen, Xue-song; Cheng, Xiao-cheng; Sun, Min; He, Bin; You, Lin-na; Lei, Peng; Tan, Xiao-wei; Qin, Shu; Cai, Guo-qiang; Zhang, Dong-ying (2020). "Prognostic value of NT-proBNP in patients with severe COVID-19". Respiratory Research. 21 (1). doi:10.1186/s12931-020-01352-w. ISSN 1465-993X.
- ↑ Han, Huan; Xie, Linlin; Liu, Rui; Yang, Jie; Liu, Fang; Wu, Kailang; Chen, Lang; Hou, Wei; Feng, Yong; Zhu, Chengliang (2020). "Analysis of heart injury laboratory parameters in 273 COVID‐19 patients in one hospital in Wuhan, China". Journal of Medical Virology. 92 (7): 819–823. doi:10.1002/jmv.25809. ISSN 0146-6615.
- ↑ Lauer, Bernward; Niederau, Christoph; Kühl, Uwe; Schannwell, Mira; Pauschinger, Matthias; Strauer, Bodo-Eckhard; Schultheiss, Heinz-Peter (1997). "Cardiac Troponin T in Patients With Clinically Suspected Myocarditis". Journal of the American College of Cardiology. 30 (5): 1354–1359. doi:10.1016/S0735-1097(97)00317-3. ISSN 0735-1097.
- ↑ Heymans, S. (2007). "Myocarditis and heart failure: need for better diagnostic, predictive, and therapeutic tools". European Heart Journal. 28 (11): 1279–1280. doi:10.1093/eurheartj/ehm111. ISSN 0195-668X.
- ↑ Jensen, Juliana; Ma, Li-Ping; Fu, Michael L. X.; Svaninger, David; Lundberg, Per-Arne; Hammarsten, Ola (2010). "Inflammation increases NT-proBNP and the NT-proBNP/BNP ratio". Clinical Research in Cardiology. 99 (7): 445–452. doi:10.1007/s00392-010-0140-z. ISSN 1861-0684.
- ↑ 52.0 52.1 Siripanthong, Bhurint; Nazarian, Saman; Muser, Daniele; Deo, Rajat; Santangeli, Pasquale; Khanji, Mohammed Y.; Cooper, Leslie T.; Chahal, C. Anwar A. (2020). "Recognizing COVID-19–related myocarditis: The possible pathophysiology and proposed guideline for diagnosis and management". Heart Rhythm. doi:10.1016/j.hrthm.2020.05.001. ISSN 1547-5271.
- ↑ Ukena, Christian; Mahfoud, Felix; Kindermann, Ingrid; Kandolf, Reinhard; Kindermann, Michael; Böhm, Michael (2011). "Prognostic electrocardiographic parameters in patients with suspected myocarditis". European Journal of Heart Failure. 13 (4): 398–405. doi:10.1093/eurjhf/hfq229. ISSN 1388-9842.
- ↑ Hendren, Nicholas S.; Drazner, Mark H.; Bozkurt, Biykem; Cooper, Leslie T. (2020). "Description and Proposed Management of the Acute COVID-19 Cardiovascular Syndrome". Circulation. 141 (23): 1903–1914. doi:10.1161/CIRCULATIONAHA.120.047349. ISSN 0009-7322.
- ↑ Pinamonti, Bruno; Alberti, Ezip; Cigalotto, Alessandro; Dreas, Lorella; Salvi, Alessandro; Silvestri, Furio; Camerini, Fulvio (1988). "Echocardiographic findings in myocarditis". The American Journal of Cardiology. 62 (4): 285–291. doi:10.1016/0002-9149(88)90226-3. ISSN 0002-9149.
- ↑ Felker, G.Michael; Boehmer, John P; Hruban, Ralph H; Hutchins, Grover M; Kasper, Edward K; Baughman, Kenneth L; Hare, Joshua M (2000). "Echocardiographic findings in fulminant and acute myocarditis". Journal of the American College of Cardiology. 36 (1): 227–232. doi:10.1016/S0735-1097(00)00690-2. ISSN 0735-1097.
- ↑ 57.0 57.1 Friedrich, Matthias G.; Strohm, Oliver; Schulz-Menger, Jeanette; Marciniak, Heinz; Luft, Friedrich C.; Dietz, Rainer (1998). "Contrast Media–Enhanced Magnetic Resonance Imaging Visualizes Myocardial Changes in the Course of Viral Myocarditis". Circulation. 97 (18): 1802–1809. doi:10.1161/01.CIR.97.18.1802. ISSN 0009-7322.
- ↑ Friedrich, Matthias G.; Sechtem, Udo; Schulz-Menger, Jeanette; Holmvang, Godtfred; Alakija, Pauline; Cooper, Leslie T.; White, James A.; Abdel-Aty, Hassan; Gutberlet, Matthias; Prasad, Sanjay; Aletras, Anthony; Laissy, Jean-Pierre; Paterson, Ian; Filipchuk, Neil G.; Kumar, Andreas; Pauschinger, Matthias; Liu, Peter (2009). "Cardiovascular Magnetic Resonance in Myocarditis: A JACC White Paper". Journal of the American College of Cardiology. 53 (17): 1475–1487. doi:10.1016/j.jacc.2009.02.007. ISSN 0735-1097.
- ↑ Dennert, R.; Crijns, H. J.; Heymans, S. (2008). "Acute viral myocarditis". European Heart Journal. 29 (17): 2073–2082. doi:10.1093/eurheartj/ehn296. ISSN 0195-668X.
- ↑ Cooper, Leslie T.; Baughman, Kenneth L.; Feldman, Arthur M.; Frustaci, Andrea; Jessup, Mariell; Kuhl, Uwe; Levine, Glenn N.; Narula, Jagat; Starling, Randall C.; Towbin, Jeffrey; Virmani, Renu (2007). "The Role of Endomyocardial Biopsy in the Management of Cardiovascular Disease". Circulation. 116 (19): 2216–2233. doi:10.1161/CIRCULATIONAHA.107.186093. ISSN 0009-7322.
- ↑ Rao, Sangeetha; Sasser, William; Diaz, Franco; Sharma, Nirmal; Alten, Jeffrey (2014). "Coronavirus Associated Fulminant Myocarditis Successfully Treated With Intravenous Immunoglobulin and Extracorporeal Membrane Oxygenation". Chest. 146 (4): 336A. doi:10.1378/chest.1992018. ISSN 0012-3692.
- ↑ "Favipiravir Combined With Tocilizumab in the Treatment of Corona Virus Disease 2019 - Full Text View - ClinicalTrials.gov".
- ↑ Dabbagh, Mohammed F.; Aurora, Lindsey; D’Souza, Penny; Weinmann, Allison J.; Bhargava, Pallavi; Basir, Mir B. (2020). "Cardiac Tamponade Secondary to COVID-19". JACC: Case Reports. doi:10.1016/j.jaccas.2020.04.009. ISSN 2666-0849.
- ↑ 64.0 64.1 Maceira, Alicia M; Lopez-Lereu, Maria P; Higueras Ortega, Laura; García-Gonzalez, Pilar; Broseta Torres, Ricardo; Solsona Caravaca, Javier; Ventura Perez, Bruno; Andres Soler, Jorge; Dominguez Mafe, Eloy; Monmeneu, Jose V; Voges, Inga (2020). "Subacute perimyocarditis in a young patient with COVID-19 infection". European Heart Journal - Case Reports. doi:10.1093/ehjcr/ytaa157. ISSN 2514-2119.
- ↑ Byrne, Jonathan; Sado, Daniel; O’Gallagher, Kevin; Hua, Alina (2020). "Life-threatening cardiac tamponade complicating myo-pericarditis in COVID-19". European Heart Journal. 41 (22): 2130–2130. doi:10.1093/eurheartj/ehaa253. ISSN 0195-668X.
- ↑ Tomkowski, Witold; Swedberg, Karl; Seferovic, Petar; Sabaté Tenas, Manel; Ristić, Arsen D; Pavie, Alain; Mayosi, Bongani; Maisch, Bernhard; Lionis, Christos; Klingel, Karin; Gueret, Pascal; Brucato, Antonio; Bogaert, Jan; Barón-Esquivias, Gonzalo; Badano, Luigi; Imazio, Massimo; Charron, Philippe; Adler, Yehuda; Achenbach, Stephan; Agewall, Stefan; Al-Attar, Nawwar; Angel Ferrer, Juan; Arad, Michael; Asteggiano, Riccardo; Bueno, Héctor; Caforio, Alida L P; Carerj, Scipione; Ceconi, Claudio; Evangelista, Arturo; Flachskampf, Frank; Giannakoulas, George; Gielen, Stephan; Habib, Gilbert; Kolh, Philippe; Lambrinou, Ekaterini; Lancellotti, Patrizio; Lazaros, George; Linhart, Ales; Meurin, Philippe; Nieman, Koen; Piepoli, Massimo F; Price, Susanna; Roos-Hesselink, Jolien; Roubille, François; Ruschitzka, Frank; Sagristà Sauleda, Jaume; Sousa-Uva, Miguel; Uwe Voigt, Jens; Luis Zamorano, Jose; Zamorano, Jose Luis; Aboyans, Victor; Achenbach, Stephan; Agewall, Stefan; Badimon, Lina; Barón-Esquivias, Gonzalo; Baumgartner, Helmut; Bax, Jeroen J; Bueno, Héctor; Carerj, Scipione; Dean, Veronica; Erol, Çetin; Fitzimons, Donna; Gaemperli, Oliver; Kirchhof, Paulus; Kolh, Philippe; Lancellotti, Patrizio; Lip, Gregory YH; Nihoyannopoulos, Petros; Piepoli, Massimo F; Ponikowski, Piotr; Roffi, Marco; Torbicki, Adam; Vaz Carneiro, Antonio; Windecker, Stephan; Shuka, Naltin; Sisakian, Hamayak; Mascherbauer, Julia; Isayev, Elnur; Shumavets, Vadim; Van Camp, Guy; Gatzov, Plamen; Hanzevacki, Jadranka Separovic; Moustra, Hera Heracleous; Linhart, Ales; Møller, Jacob Eifer; Aboleineen, Mohamed Wafaie; Põder, Pentti; Lehtonen, Jukka; Antov, Slobodan; Damy, Thibaud; Schieffer, Bernhard; Dimitriadis, Kyriakos; Kiss, Robert Gabor; Rafnsson, Arnar; Arad, Michael; Novo, Salvatore; Mirrakhimov, Erkin; Stradinš, Peteris; Kavoliuniene, Ausra; Codreanu, Andrei; Dingli, Philip; Vataman, Eleonora; El Hattaoui, Mustapaha; Samstad, Stein Olav; Hoffman, Piotr; Lopes, Luís Rocha; Dimulescu, Doina Ruxandra; Arutyunov, Grigory P; Pavlovic, Milan; Dúbrava, Juraj; Sauleda, Jaume Sagristà; Andersson, Bert; Müller, Hajo; Bouma, Berto J; Abaci, Adnan; Archbold, Andrew; Nesukay, Elena (2015). "2015 ESC Guidelines for the diagnosis and management of pericardial diseases". European Heart Journal. 36 (42): 2921–2964. doi:10.1093/eurheartj/ehv318. ISSN 0195-668X.
- ↑ Wang, Dawei; Hu, Bo; Hu, Chang; Zhu, Fangfang; Liu, Xing; Zhang, Jing; Wang, Binbin; Xiang, Hui; Cheng, Zhenshun; Xiong, Yong; Zhao, Yan; Li, Yirong; Wang, Xinghuan; Peng, Zhiyong (2020). "Clinical Characteristics of 138 Hospitalized Patients With 2019 Novel Coronavirus–Infected Pneumonia in Wuhan, China". JAMA. 323 (11): 1061. doi:10.1001/jama.2020.1585. ISSN 0098-7484.
- ↑ Chen, Mao; Prendergast, Bernard; Redwood, Simon; Xiong, Tian-Yuan (2020). "Coronaviruses and the cardiovascular system: acute and long-term implications". European Heart Journal. 41 (19): 1798–1800. doi:10.1093/eurheartj/ehaa231. ISSN 0195-668X.
- ↑ Liu K, Fang YY, Deng Y, Liu W, Wang MF, Ma JP; et al. (2020). "Clinical characteristics of novel coronavirus cases in tertiary hospitals in Hubei Province". Chin Med J (Engl). 133 (9): 1025–1031. doi:10.1097/CM9.0000000000000744. PMC 7147277 Check
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value (help). - ↑ Driggin E, Madhavan MV, Bikdeli B, Chuich T, Laracy J, Biondi-Zoccai G; et al. (2020). "Cardiovascular Considerations for Patients, Health Care Workers, and Health Systems During the COVID-19 Pandemic". J Am Coll Cardiol. 75 (18): 2352–2371. doi:10.1016/j.jacc.2020.03.031. PMC 7198856 Check
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value (help). - ↑ Richardson S, Hirsch JS, Narasimhan M, Crawford JM, McGinn T, Davidson KW; et al. (2020). "Presenting Characteristics, Comorbidities, and Outcomes Among 5700 Patients Hospitalized With COVID-19 in the New York City Area". JAMA. doi:10.1001/jama.2020.6775. PMC 7177629 Check
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value (help). - ↑ Giudicessi, John R.; Noseworthy, Peter A.; Friedman, Paul A.; Ackerman, Michael J. (2020). "Urgent Guidance for Navigating and Circumventing the QTc-Prolonging and Torsadogenic Potential of Possible Pharmacotherapies for Coronavirus Disease 19 (COVID-19)". Mayo Clinic Proceedings. 95 (6): 1213–1221. doi:10.1016/j.mayocp.2020.03.024. ISSN 0025-6196.
- ↑ Goyal, Parag; Choi, Justin J.; Pinheiro, Laura C.; Schenck, Edward J.; Chen, Ruijun; Jabri, Assem; Satlin, Michael J.; Campion, Thomas R.; Nahid, Musarrat; Ringel, Joanna B.; Hoffman, Katherine L.; Alshak, Mark N.; Li, Han A.; Wehmeyer, Graham T.; Rajan, Mangala; Reshetnyak, Evgeniya; Hupert, Nathaniel; Horn, Evelyn M.; Martinez, Fernando J.; Gulick, Roy M.; Safford, Monika M. (2020). "Clinical Characteristics of Covid-19 in New York City". New England Journal of Medicine. 382 (24): 2372–2374. doi:10.1056/NEJMc2010419. ISSN 0028-4793.
- ↑ Baldi, Enrico; Sechi, Giuseppe M.; Mare, Claudio; Canevari, Fabrizio; Brancaglione, Antonella; Primi, Roberto; Klersy, Catherine; Palo, Alessandra; Contri, Enrico; Ronchi, Vincenza; Beretta, Giorgio; Reali, Francesca; Parogni, Pierpaolo; Facchin, Fabio; Bua, Davide; Rizzi, Ugo; Bussi, Daniele; Ruggeri, Simone; Oltrona Visconti, Luigi; Savastano, Simone (2020). "Out-of-Hospital Cardiac Arrest during the Covid-19 Outbreak in Italy". New England Journal of Medicine. doi:10.1056/NEJMc2010418. ISSN 0028-4793.
- ↑ Shao, Fei; Xu, Shuang; Ma, Xuedi; Xu, Zhouming; Lyu, Jiayou; Ng, Michael; Cui, Hao; Yu, Changxiao; Zhang, Qing; Sun, Peng; Tang, Ziren (2020). "In-hospital cardiac arrest outcomes among patients with COVID-19 pneumonia in Wuhan, China". Resuscitation. 151: 18–23. doi:10.1016/j.resuscitation.2020.04.005. ISSN 0300-9572.
- ↑ Gandhi, Rajesh T.; Solomon, Caren G.; Lynch, John B.; del Rio, Carlos (2020). "Mild or Moderate Covid-19". New England Journal of Medicine. doi:10.1056/NEJMcp2009249. ISSN 0028-4793.
- ↑ Chang, David; Saleh, Moussa; Gabriels, James; Ismail, Haisam; Goldner, Bruce; Willner, Jonathan; Beldner, Stuart; Mitra, Raman; John, Roy; Epstein, Laurence M. (2020). "Inpatient Use of Ambulatory Telemetry Monitors for COVID-19 Patients Treated With Hydroxychloroquine and/or Azithromycin". Journal of the American College of Cardiology. 75 (23): 2992–2993. doi:10.1016/j.jacc.2020.04.032. ISSN 0735-1097.
- ↑ Panchal, Ashish R.; Berg, Katherine M.; Kudenchuk, Peter J.; Del Rios, Marina; Hirsch, Karen G.; Link, Mark S.; Kurz, Michael C.; Chan, Paul S.; Cabañas, José G.; Morley, Peter T.; Hazinski, Mary Fran; Donnino, Michael W. (2018). "2018 American Heart Association Focused Update on Advanced Cardiovascular Life Support Use of Antiarrhythmic Drugs During and Immediately After Cardiac Arrest: An Update to the American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care". Circulation. 138 (23). doi:10.1161/CIR.0000000000000613. ISSN 0009-7322.
- ↑ Tzivoni, D; Banai, S; Schuger, C; Benhorin, J; Keren, A; Gottlieb, S; Stern, S (1988). "Treatment of torsade de pointes with magnesium sulfate". Circulation. 77 (2): 392–397. doi:10.1161/01.CIR.77.2.392. ISSN 0009-7322.
- ↑ Neumar, R. W.; Otto, C. W.; Link, M. S.; Kronick, S. L.; Shuster, M.; Callaway, C. W.; Kudenchuk, P. J.; Ornato, J. P.; McNally, B.; Silvers, S. M.; Passman, R. S.; White, R. D.; Hess, E. P.; Tang, W.; Davis, D.; Sinz, E.; Morrison, L. J. (2010). "Part 8: Adult Advanced Cardiovascular Life Support: 2010 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care". Circulation. 122 (18_suppl_3): S729–S767. doi:10.1161/CIRCULATIONAHA.110.970988. ISSN 0009-7322.
- ↑ Adabag AS, Luepker RV, Roger VL, Gersh BJ (2010). "Sudden cardiac death: epidemiology and risk factors". Nat Rev Cardiol. 7 (4): 216–25. doi:10.1038/nrcardio.2010.3. PMC 5014372. PMID 20142817 PMID: 20142817 Check
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value (help). - ↑ Vouri SM, Thai TN, Winterstein AG (2020). "An evaluation of co-use of chloroquine or hydroxychloroquine plus azithromycin on cardiac outcomes: A pharmacoepidemiological study to inform use during the COVID19 pandemic". Res Social Adm Pharm. doi:10.1016/j.sapharm.2020.04.031. PMC 7190482 Check
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value (help). PMID 32409150 PMID: 32409150 Check|pmid=
value (help). - ↑ 83.0 83.1 Giudicessi JR, Roden DM, Wilde AAM, Ackerman MJ (2020). "Genetic susceptibility for COVID-19-associated sudden cardiac death in African Americans". Heart Rhythm. doi:10.1016/j.hrthm.2020.04.045. PMC 7198426 Check
|pmc=
value (help). PMID 32380288 PMID: 32380288 Check|pmid=
value (help). - ↑ 84.0 84.1 84.2 84.3 Marijon E, Karam N, Jost D, Perrot D, Frattini B, Derkenne C; et al. (2020). "Out-of-hospital cardiac arrest during the COVID-19 pandemic in Paris, France: a population-based, observational study". Lancet Public Health. doi:10.1016/S2468-2667(20)30117-1. PMC 7255168 Check
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value (help). PMID 32473113 PMID: 32473113 Check|pmid=
value (help). - ↑ Lai PH, Lancet EA, Weiden MD, Webber MP, Zeig-Owens R, Hall CB; et al. (2020). "Characteristics Associated With Out-of-Hospital Cardiac Arrests and Resuscitations During the Novel Coronavirus Disease 2019 Pandemic in New York City". JAMA Cardiol. doi:10.1001/jamacardio.2020.2488. PMC 7305567 Check
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value (help). PMID 32558876 PMID: 32558876 Check|pmid=
value (help). - ↑ 86.0 86.1 86.2 86.3 86.4 Srinivasan NT, Schilling RJ (2018). "Sudden Cardiac Death and Arrhythmias". Arrhythm Electrophysiol Rev. 7 (2): 111–117. doi:10.15420/aer.2018:15:2. PMC 6020177. PMID 29967683 PMID: 29967683 Check
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value (help). - ↑ 87.0 87.1 Parish DC, Goyal H, Dane FC (2018). "Mechanism of death: there's more to it than sudden cardiac arrest". J Thorac Dis. 10 (5): 3081–3087. doi:10.21037/jtd.2018.04.113. PMC 6006107. PMID 29997977 PMID: 29997977 Check
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value (help). - ↑ Chorin E, Dai M, Shulman E, Wadhwani L, Bar-Cohen R, Barbhaiya C; et al. (2020). "The QT interval in patients with COVID-19 treated with hydroxychloroquine and azithromycin". Nat Med. 26 (6): 808–809. doi:10.1038/s41591-020-0888-2. PMID 32488217 PMID: 32488217 Check
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value (help). - ↑ Couper K, Taylor-Phillips S, Grove A, Freeman K, Osokogu O, Court R; et al. (2020). "COVID-19 in cardiac arrest and infection risk to rescuers: A systematic review". Resuscitation. 151: 59–66. doi:10.1016/j.resuscitation.2020.04.022. PMC 7169929 Check
|pmc=
value (help). PMID 32325096 PMID: 32325096 Check|pmid=
value (help). - ↑ Gupta A, Pasupula DK, Bhonsale A, Kancharla K, Wang NC, Adelstein E; et al. (2018). "Implantable cardioverter-defibrillator therapy in device recipients who survived a cardiac arrest associated with a reversible cause". J Cardiovasc Electrophysiol. 29 (10): 1413–1417. doi:10.1111/jce.13696. PMID 30015993 PMID: 30015993 Check
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value (help). - ↑ Van Herendael H, Dorian P (2010). "Amiodarone for the treatment and prevention of ventricular fibrillation and ventricular tachycardia". Vasc Health Risk Manag. 6: 465–72. doi:10.2147/vhrm.s6611. PMC 2922307. PMID 20730062 PMID: 20730062 Check
|pmid=
value (help). - ↑ Hayashi M, Shimizu W, Albert CM (2015). "The spectrum of epidemiology underlying sudden cardiac death". Circ Res. 116 (12): 1887–906. doi:10.1161/CIRCRESAHA.116.304521. PMC 4929621. PMID 26044246 PMID: 26044246 Check
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value (help). - ↑ Koplan BA, Stevenson WG (2009). "Ventricular tachycardia and sudden cardiac death". Mayo Clin Proc. 84 (3): 289–97. doi:10.1016/S0025-6196(11)61149-X. PMC 2664600. PMID 19252119 PMID: 19252119 Check
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value (help).