COVID-19 Infection in Transplant Patients: Difference between revisions
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{{Main article|COVID-19}} | |||
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'''For COVID-19 frequently asked inpatient questions, click [[COVID-19 frequently asked inpatient questions|here]]'''<br> | '''For COVID-19 frequently asked inpatient questions, click [[COVID-19 frequently asked inpatient questions|here]]'''<br> | ||
'''For COVID-19 frequently asked outpatient questions, click [[COVID-19 frequently asked outpatient questions|here]]'''<br> | '''For COVID-19 frequently asked outpatient questions, click [[COVID-19 frequently asked outpatient questions|here]]'''<br> | ||
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According to one of the [[COVID-19]] Rapid Guidelines for [[Kidney transplantation|renal transplant patients]]:<ref name="urlSamavat">{{cite web |url=http://www.ijkd.org/index.php/ijkd/article/view/5511/1156 |title=Samavat |format= |work= |accessdate=}}</ref> | According to one of the [[COVID-19]] Rapid Guidelines for [[Kidney transplantation|renal transplant patients]]:<ref name="urlSamavat">{{cite web |url=http://www.ijkd.org/index.php/ijkd/article/view/5511/1156 |title=Samavat |format= |work= |accessdate=}}</ref> | ||
{{Family tree/start}} | {{Family tree/start}} | ||
{{Family tree | | | | | | | | | | A01 | | | |A01= Patient presents with Sore throat,Dry cough or Fever}} | {{Family tree | | | | | | | | | | A01 | | | |A01= Patient presents with [[Sore throat]],[[Dry cough]] or [[Fever]]}} | ||
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{{Family tree | | | | | | | | | | B01 |-| B02 | |B01= | {{Family tree | | | | | | | | | | B01 |-| B02 | |B01= [[Dypsnea]], RR>30/min, SpO2<93%| B02= If Present Then refer for admission}} | ||
{{Family tree | | | | | | | | | | |!| | | | | }} | {{Family tree | | | | | | | | | | |!| | | | | }} | ||
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{{Family tree | | | | | | | | | | |!| | | | | }} | {{Family tree | | | | | | | | | | |!| | | | | }} | ||
{{Family tree | | | | C01 |-|-|-| C02 |-|-|-|C03 |-| C04 | |C01= Creatinine is raised but no Lymphopenia or No Abnormality on CT chest| C02=If not, check Creatinine, C-RP, CXR & CT chest|C03 = Lymphopenia but Creatinine normal and Ct chest normal |C04= Admit in usual ward and evaluate Lymphopenia}} | {{Family tree | | | | C01 |-|-|-| C02 |-|-|-|C03 |-| C04 | |C01= [[Creatinine]] is raised but no [[Lymphopenia]] or No Abnormality on [[CT chest]]| C02=If not, check [[Creatinine]], [[C-RP]], [[CXR]] & [[CT chest]]|C03 = [[Lymphopenia]] but [[Creatinine]] normal and Ct chest normal |C04= Admit in usual ward and evaluate Lymphopenia}} | ||
{{Family tree | | | | |!| | | | | |!| | }} | {{Family tree | | | | |!| | | | | |!| | }} | ||
{{Family tree | | | | D01 | | | | D02 |-|-| D03 |-| D04 | |D01= Evaluate the Causes of rise in creatinine | D02= Is Xray positive for COVID-19? | D03= If No, then Do CT Chest |D04= If CT Chest is negative then refer patient for Home Care, Medical Treatment, Diagnostic Test, and Daily Follow-ups }} | {{Family tree | | | | D01 | | | | D02 |-|-| D03 |-| D04 | |D01= Evaluate the Causes of rise in [[creatinine]] | D02= Is Xray positive for [[COVID-19]]? | D03= If No, then Do CT Chest |D04= If CT Chest is negative then refer a patient for Home Care, Medical Treatment, Diagnostic Test, and Daily Follow-ups }} | ||
{{Family tree | | | | | | | | | | |!| | | | |!|}} | {{Family tree | | | | | | | | | | |!| | | | |!|}} | ||
{{Family tree | | | | | | | | | | E02 |-|-|-|'| E02= If Chest Xray or CT chest is indicative of COVID-19 infection: Admit the patient|}} | {{Family tree | | | | | | | | | | E02 |-|-|-|'| E02= If [[Chest Xray]] or [[CT chest]] is indicative of [[COVID-19]] infection: Admit the patient|}} | ||
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=== Screening for [[AKI]] === | === Screening for [[AKI]] === |
Revision as of 14:26, 21 July 2020
For COVID-19 frequently asked inpatient questions, click here
For COVID-19 frequently asked outpatient questions, click here
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Gurmandeep Singh Sandhu,M.B.B.S.[2]
Overview
Renal transplant patients are under immunosuppression to modulate the immune response to graft. Moreover these patients have various underlying chronic kidney diseases and other co-morbidities such as diabetes and hypertension, which can impact the results in COVID-19 infection. Hence these patients are at a higher risk of developing COVID-19 associated complications. The clinical manifestations, treatment, and prognosis of COVID-19 infection may be different from the general population. It is believed that any transplant recipient presented to the infection would result in a high level of cases; however, the risk of the donor to recipient transmission is unknown.
Historical Perspectives
- In 1965, Tyrrell and Bynoe used cultures of human ciliated embryonal trachea to propagate the first human coronavirus (HCoV) in vitro.[1][2]
- The etiological agent involved is severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), causing coronavirus disease 2019 (COVID-19), first detected in Wuhan, China. On March 12, 2020 the World Health Organization declared the COVID-19 outbreak a pandemic.[3]
- The earlier SARS epidemic of Hong Kong is known to affect both pediatric and adult renal transplant patients where the severity of disease in adult patients was more than that in pediatric patients[4]
- The first reported case of COVID-19 infection in renal transplant patient, was a 52‐year‐old man who received living‐related kidney transplantation 12 years for chronic glomerulonephritis, in Wuhan, China. He made a successful recovery and was discharged on day 13.[5]
Classification
COVID-19 infection may be classified according to WHO into four subtypes based on severity. Classification of COVID-19 infection in renal transplant patients depends on the severity of COVID-19 manifestations is following:[6]
Mild Disease | Symptomatic patients meeting the case definition for COVID-19
No pneumonia No hypoxia | |
Moderate Disease | Adolescent or adult
Pneumonia with fever, dyspnea, cough, and fast breathing SpO2 > or = 90% (cough, difficulty breathing, fast breathing or chest indrawing) Fast breathing(breaths/min) <2 months: > or = 60 2-11 months: > or = 50 1-5 years: > or = 40 Diagnosis can be made clinically, Chest Imaging (radiograph, CT scan, Ultrasound) may assist in diagnosis. | |
Severe Disease | Severe Pneumonia | Adolescent or adult
Signs of Pneumonia plus one of following: Respiratory rate > 30 breaths/min Severe Respiratory Distress SpO2 < 90% Child Pneumonia plus at least one of following Central cyanosis or SpO2 < 90% Severe respiratory distress (fast breathing, grunting, severe chest indrawing) General danger signs such as inability to breastfeed or drink, lethargy, or unconsciousness or convulsions Fast breathing(breaths/min) <2 months: > or = 60 2-11 months: > or = 50 1-5 years: > or = 40 Diagnosis can be made clinically, Chest Imaging (radiograph, CT scan, Ultrasound) may assist in diagnosis. |
Critical Disease | Acute Respiratory Distress Syndrome (ARDS) | Onset: within 1 week of pneumonia or new worsening respiratory symptoms.
Chest imaging: (radiograph, CT scan, or lung ultrasound): bilateral opacities, not related to volume overload, lobar or lung collapse, or nodules Origin of pulmonary infiltrates: Respiratory failure not explained by cardiac failure or fluid overload. Oxygenation impairment in adults: -Mild ARDS: 200 mmHg < PaO2/FiO2a ≤ 300 mmHg (with PEEP or CPAP ≥ 5 cmH2O) -Moderate ARDS: 100 mmHg < PaO2/FiO2 ≤ 200 mmHg (with PEEP ≥ 5 cmH2O) -Severe ARDS: PaO2/FiO2 ≤ 100 mmHg (with PEEP ≥ 5 cmH2O) Oxygenation impairment in children: note OI and OSI. Use OI when available. If PaO2 not available, wean FiO2 to maintain SpO2 ≤ 97% to calculate OSI or SpO2/FiO2 ratio: • Bilevel (NIV or CPAP) ≥ 5 cmH2O via full face mask: PaO2/FiO2 ≤ 300 mmHg or SpO2/FiO2 ≤ 264. • Mild ARDS (invasively ventilated): 4 ≤ OI < 8 or 5 ≤ OSI < 7.5. • Moderate ARDS (invasively ventilated): 8 ≤ OI < 16 or 7.5 ≤ OSI < 12.3. • Severe ARDS (invasively ventilated): OI ≥ 16 or OSI ≥ 12.3. |
Sepsis | Adults:
Acute life-threatening organ dysfunction caused by a dysregulated host response to suspected or proven infection. Signs of organ dysfunction: altered mental status, difficult or fast breathing, low oxygen saturation, reduced urine output, fast heart rate, weak pulse, cold extremities or low blood pressure, skin mottling, laboratory evidence of coagulopathy, thrombocytopenia, acidosis, high lactate, or hyperbilirubinemia. Children Suspected or proven infection and ≥ 2 age-based systemic inflammatory response syndrome (SIRS) criteria, of which one must be abnormal temperature or white blood cell count. | |
Septic shock | Adults:
Persistent hypotension despite volume resuscitation, requiring vasopressors to maintain MAP ≥ 65 mmHg and serum lactate level > 2 mmol/L Children: Any hypotension (SBP < 5th centile or > 2 SD below normal for age) or two or three of the following: altered mental status; bradycardia or tachycardia (HR < 90 bpm or > 160 bpm in infants and heart rate < 70 bpm or > 150 bpm in children); prolonged capillary refill (> 2 sec) or weak pulse; fast breathing; mottled or cool skin or petechial or purpuric rash; high lactate; reduced urine output; hyperthermia or hypothermia |
Pathophysiology
The normal physiology of in renal transplant patients can be understood as follows to that in general population[7]. However, the renal transplant recipients are at remain at higher risk to catch COVID-19[8]and develop severe complications due to chronic immunosuppressed state which is implicated in various viral infections such as cytomegalovirus, herpes zoster, norovirus infections.[8][9][10]
Genetics
- The Angiotensin-converting enzyme 2 and Dipeptidyl peptidase has been associated with the development of SARS-Cov and MERS-CoV[11][12]
- Angiotensin-converting enzyme 2 and Dipeptidyl peptidase have been implicated in the uptake of SARS-Cov and MERS-CoV[11][12]
- Several studies have indicated that viral S-protein RBD interacts with host ACE2 receptor. S protein changes thus make the human cells permissive to SARS-CoV and SARS-CoV-2 infection[13] [14] [15] [16] [17]ACE2: ACE ratio is higher in the kidneys compared to the respiratory system. (1:1 in the kidneys VS 1:20 in the respiratory system).[18]These receptors are found in the proximal tubules of kidney[11][12]SARS-CoV2 spike(S) protein is cleaved and activated by transmembrane serine protease family (TMPRSS) after attaching to angiotensin-converting enzyme 2 (ACE2) receptors. This allows the virus to release fusion peptide that aides in membrane fusion..[19]
- There is a possibility of association between MHC class I(HLA A, B & C) with incidence of COVID-19 infection as well as severity of complications[20]
- HLA-B*46:01 gene product is believed to show lowest binding to SARS-CoV-2 indicating decreased viral presentation to immune system. Whereas HLA-B*15:03 shows increased affinity to SARS-CoV-2[20]leading to higher likelihood in developing immunity.
Associated Conditions
- Acute Kidney Injury has been reported in patients with COVID-19 infection along with presence of proteinuria, hematuria. In a case observation, 4 out of 7 patients had AKI which may indicate that renal transplant patients are at higher risk AKI on being infected with COVID-19 whereas only 29% AKI was seen in critically ill patients of general population.[21]
- Acute Kidney Injury seen in COVID-19 infection can be from the cytotropic effect (Uptake of SARS-Cov-2 virus into proximal tubule cells is possible explanation for the AKI seen in COVID patients[11][12]) of the viral particles as well as systemic inflammatory response induced by the cytokines. Patients admitted with severe disease, acute respiratory distress syndrome (ARDS) or in patients admitted to ICU have a higher incidence of AKI . [8]. Other possible reasons that can play a role in AKI development, are multi-organ failure resulting in acute tubular necrosis (ATN), volume reduction causing prerenal ATN, high fever, drug toxicity, hypotension, and contrast exposure. [22] [23]
- Pro-inflammatory cytokine levels are elevated in the COVID-19 infection and there is activation of T-cell response. [24]
- There is higher cytokine levels and there is occurrence of cytokine storm in severe cases. In cytokine storm the, the immune system damages the healthy tissue rather than virus.[25] According to an autopsy report of six patients, the light microscopy indicated CD68+ macrophage infiltration of the tubulointerstitium and severe ATN. The tubules showed complement 5b-9 deposition in all six cases, but deposition in glomeruli and capillaries were seldom seen. Some CD8+ T lymphocyte cells and CD56+ (natural killer) cells were seen in kidney tissue[26]
Causes
Life Threatening Causes
- Even though the CT findings in COVID-19 pneumonia were similar in renal transplant recipients and general population, due to chronic immunosuppression, the clinical features of COVID-19 in renal transplant patients may be atypical.[27][28]
- In one of the study, nine of the 10 patients had fever, cough, shortness of breath, and fatigue; three had diarrhea; eight had lymphopenia; six had renal injury; and six had liver function damage.[29][30][7]
- It needs to be verified whether the severity of COVID-19 pneumonia differs in immunocompromised transplant patients than non-immunocompromised population. According to a report from China’s Infectious Disease Information system, out of 72,314 COVID-19 cases in general population, 81% were reported as mild, whereas 19% were either severe or critical. And, in report from study in renal transplant patients, the number of severe cases were 80% compared to only 10% in their infected family members and 19% in general population. Moreover, average duration of illness was nearly twice i.e. 35 days compared to 18 days in control group and 17-20 days reported in general population.[31][7]
Differentiating from other Diseases
- As the general presentation of COVID-19 is similar in general population and renal transplant patients, it should be differentiated from other diseases presenting with cough, fever, shortness of breath, and tachypnea.
- To review the differential diagnosis, click here
- COVID-19 associated AKI in renal transplant patients must be differentiated from other causes of AKI , such as congestive heart failure, hemorrhage, dehydration, liver failure, urinary tract obstruction, Interstitial nephritis, glomerulonephritis and nephrotoxic medications.
Epidemiology and Demographics
Incidence
- Due to the lack of broad screening that includes the general population (including asymptomatic patients) and the lack of PCR and antibody tests with acceptable sensitivity and specificity, an accurate estimate of the incidence rate of coronavirus disease 2019 (COVID-19) cannot be accurately estimated.
- Data indicates that the rate of severe complications of COVID-19 is almost 25%, and kidney is also one of the main organs affected in severe illness.[32]. The risk is further increased in patients having chronic kidney disease(CKD), patients on chronic replacement therapies, and patients with kidney transplants.[33]
- AKI is seen in 5-15% of the SARS-CoV and MERS-CoV infection[33]
Prevalence
- For details on the real-time prevalence and spread of COVID-19, click here.
- As it is prevalent in all the continents of the world, World Health Organization (WHO) has declared COVID-19 outbreak a pandemic.
- Among patients with influenza-like-illness and without risk factors for COVID-19, 5% were positive for COVID-19.
- In an analysis of 14 articles[34][35][36][37]
- Median interval of transplantation - 4 years. (range .25-30.1)
- Median interval of transplantation - 4 years. (range .25-30.1)
Case-fatality rate
- Due to limited testing of asymptomatic individuals, the potential inaccuracies of early PCR tests and antibody tests, the inconsistent reporting and lack of organized data, an accurate case-fatality rate of COVID-19 has yet to be established.
- According to analysis of recent studies[34][35][36][37]
[38] [39] [40] [41][42], a fatality rate of 17.4% (4/23) in renal transplant patients was reported
Age
- Renal transplant patients of all ages are at a higher risk of COVID-19 due to immunosuppression.
- The youngest renal transplant patient who died of COVID-19 according to recent studies was 71 years old.[34][35][36]
Gender
- Male are more commonly affected by COVID-19 than female.[43]
- Female dying from COVID-19 are generally elder than men(median age: 82 vs. 79 years for women vs. men, respectively).[43]
Race
- According to study done in New York, 14 recipients affected by COVID-19, (39%) were black, and 15 recipients (42%) were Hispanic.[44]
Risk Factors
Common risk factors in the development of transplant patients to COVID-19 are:
- Immunosuppression[8]
- Chronic Renal Failure[8][45]
- Co-Morbidities[8]
- Male Sex[44][46]
- Old Age[44][46]
- Current or h/o smoking tobacco[44]
Screening
According to one of the COVID-19 Rapid Guidelines for renal transplant patients:[47]
Patient presents with Sore throat,Dry cough or Fever | |||||||||||||||||||||||||||||||||||||||||||||
Dypsnea, RR>30/min, SpO2<93% | If Present Then refer for admission | ||||||||||||||||||||||||||||||||||||||||||||
Creatinine is raised but no Lymphopenia or No Abnormality on CT chest | If not, check Creatinine, C-RP, CXR & CT chest | Lymphopenia but Creatinine normal and Ct chest normal | Admit in usual ward and evaluate Lymphopenia | ||||||||||||||||||||||||||||||||||||||||||
Evaluate the Causes of rise in creatinine | Is Xray positive for COVID-19? | If No, then Do CT Chest | If CT Chest is negative then refer a patient for Home Care, Medical Treatment, Diagnostic Test, and Daily Follow-ups | ||||||||||||||||||||||||||||||||||||||||||
If Chest Xray or CT chest is indicative of COVID-19 infection: Admit the patient | |||||||||||||||||||||||||||||||||||||||||||||
Screening for AKI
Serial monitoring of kidney function tests should be considered in renal transplant patients[48]
- BUN
- Creatinine
- Urine analysis
Gut Ischemia, coagulopathies, and disseminated intravascular coagulopation have been seen later in the course of illness[45]
- The following should be measured in all patients with severe COVID-19 infection on admission to prevent and screen for coagulopathies.
Natural History, Complications and Prognosis
The majority of renal transplant recipients with COVID-19 present with same course of infection as in general population[49]. The clinical features in renal transplant recipients may be atypical due to chronic state of suppressed immune system and other chronic co-morbidities in transplant patients[8][50][5]. Early clinical features include cough, fever, fatigue, diarrhea, sore throat, and shortness of breath. If left untreated, COVID-19 in transplant recipients may progress to develop dypsnea, hypoxemia, oliguria, confusion, fluid retention and pro coagulative state[49]. Common complications of COVID-19 in renal patients may include Pneumonia, Acute Respiratory Distress Syndrome, Acute Kidney Injury and Disseminated Intravascular Coagulation[31][49][45]. Prognosis is generally worse than the prognosis in general population due to underlying immunosuppression and chronic co morbidities (eg. Hypertension, Diabetes, Chronic renal Failure etc, and the mortality rate in renal transplant patients with COVID-19 has been reported to be higher than the general population[5][50][8].
Diagnosis
Diagnosis of Choice
- Renal transplant patients present with similar CT an Chest X-Ray finding which are seen in the general population, although the features of COVID-19 infection may be atypical in such patients.
- Renal Transplant patients who develop AKI can be diagnosed using KDIGO criteria:
- Increase in S. Creatinine: ≥0.3 mg/dl (≥26.5 μmol/l) within 48 hours
- Increase in S. Creatinine: ≥1.5 times baseline within the previous 7 days
- Urine volume < 0.5 ml/kg/h for >6 hours
Symptoms
Presenting symptoms in renal transplant patients are similar to those of non-renal transplant patients. Further symptomology depends on the clinical complications that develop due to COVID-19.
- Respiratory symptoms
- Fever
- Hypoxia: SpO2 depends on the severity of COVID-19 infection. In moderate infection the SpO2 > or = 90%
- Diarrhea
- Fatigue
- Features of Uremia and Azotemia may be present in severe renal compromise
Further classification of patients into the severity index can be done using the WHO guidelines.[6]
Physical Examinationin
Physical examination of COVID-19 in renal transplant patients are similar to ones seen in general population.: COVID Physical Exam
If the patient develops Acute Kidney physical examination is remarkable for[51]:
- Signs of dehydration, such as tachycardia, tachypnea, hypotension, and dry mucosa
- Fluid retention, leading to edema and swelling of periorbital and extremities
- Confusion due to severe dehydration and electrolyte imbalances
- Decrease in urine output:Oliguria or Anuria
- cardiac arrhythmia due to electrolyte imbalances such as high level of Potassium
Past Medical History
- Renal transplant patients usually have chronic co-morbidities[8]
Laboratory Findings
- Lymphocyte count
- Lower baseline values of lymphocyte count and lymphocytes percentages have been reported in patients. Furthermore the lymphocyte count continued to decrease during the course of illness.[5]
- Renal transplant patients generally have a low lymphocyte count due to immunosuppression, hence finding a further drop in the lymphocyte count can be of prognostic value.
- D-dimer
- Ferritin
- Troponin
- Microvascular thrombosis and disseminated intravascular coagulation( with gut ischemia ) can occur later in the course of illness. They are characterized by marked increase in the levels of D-dimer particularly. D dimer, ferritin, and troponin should be measured in all patients with severe COVID-19 infection on admission and in those who fail to show any clinical improvement.[52]
- High C-Reactive Protein[49] - C‐reactive protein (CRP) was significantly elevated in patients at the time of admission.[5] The levels of CRP remained elevated during the admission[5]
If the renal transplant patients reports AKI then following laboratory findings can be done[53]:
- Elevated serum creatinine
- Elevated BUN level
- Plasma BUN-creatinine ratio> 20 in prerenal AKI
- Plasma BUN-creatinine ratio< 15 in intrinsic AKI or acute tubular necrosis
- Fractional excretion of sodium (FENa)
- (FENa)< 1% in prerenal AKI
- (FENa)> 2% in intrinsic AKI or acute tubular necrosis
- Urinary sediment
- Hyaline casts in prerenal AKI
- Granular or Muddy brown casts in intrinsic AKI or acute tubular necrosis
- Several biomarkers have been found to diagnose and predict AKI that include[54][55][56]:
- neutrophil gelatinase-associated lipocalin (NGAL)
- kidney injury molecule 1 (KIM-1)
- liver-type fatty acid-binding protein
- interleukin 18 (lL-18)
- insulin-like growth factor-binding protein 7
- tissue inhibitor of metalloproteinase 2 (TIMP-2)
- calprotectin
- urine angiotensinogen (AGT)
- urine microRNA
Electrocardiogram
- There are no associated ECG findings due to COVID-19 complications in renal transplant patients. However hypokalemia due to AKI can cause ECG changes.
- To view the electrocardiogram findings on COVID-19, click here.
X Ray
- X-ray findings in the renal transplant patients were similar to the findings seen in the general population.
- To view the x-ray finidings on COVID-19, click here.
Echocardiography or Ultrasound
- If the renal transplant patient develops AKI, USG can help diagnose hydronephrosis and reduced renal blood flow.
- To view the echocardiographic findings on COVID-19, click here.
CT
- CT scan finding in renal transplant patients infected with COVID-19 were similar to those in the general population.
- To view the CT scan findings on COVID-19, click here.
MRI
- There are no MRI findings associated with COVID-19 in renal transplant patients.
- To view the MRI findings on COVID-19, click here.
Other Imaging Findings
- To view other imaging findings on COVID-19, click here.
Other Diagnostic Studies
- To view other diagnostic studies for COVID-19, click here.
Treatment
Medical Therapy
Acute Pharmacotherapy
Currently, there are a variable number of protocols that have been described for the management of COVID-19 in renal transplant patients:-
According to the British Transplantation Society Guideline[41]:-
• Follow local guidelines for use of PPE • Do the general assessment of the patient and swab for SARS-Cov-2 • Exclude other causes like CMV, pneumocystis, community or hospital acquired pneumonia, influenza, urinary sepsis, lymphoma and fluid overload) | |||||||||||||||||||||||||||||||||
• If the patient doesn't require hospitalization • Stop antiproliferative agents (MMF/azathioprine) | • If the patient is deteriorates or requires ventilatory support • Stop antiproliferative agents (MMF/azathioprine) | ||||||||||||||||||||||||||||||||
• If the patient is unwell and requires admission • Stop antiproliferative agents
(MMF/azathioprine) | |||||||||||||||||||||||||||||||||
According to a protocol described in Iranian Medical Journal[47]
Admitted Patients | |||||||||||||||||||||||||||||||||||||||
O2 Saturation <93% | O2 saturation >93% | S. Creaitnine is raised,Then Consider Kidney Biospy | •If there are signs of kidney rejection • Stop Anti Metabolite Drug • Prednisolone: 20 mg/d • Cyclosporine Trough Level: 75-150ng/ml • Tacrolimus Trough Level: 4 to 6 ng/mL • IVIG: 1-2 g/kg Divided Doses in 5 Days • Anti Viral Therapy According to Protocol • Azithromycin: 500 mg Stat and 250 mg • Daily for 4 Days | ||||||||||||||||||||||||||||||||||||
• Stop Anti Metabolite Drug • Stop CNI • IV Methyl Prednisolone: 40mg/d • IVIG: 1-2 g/kg Divided Doses in 5 Days • Anti Viral Therapy According to Protocol • Azithromycin: 500 mg Stat and 250 mg • Daily for 4 Days | • If S.Creatinine is Normal • Stop Anti Metabolite Drug • Prednisolone: 20 mg/d • Cyclosporine Trough Level: 75-150ng/ml • Tacrolimus Trough Level: 4 to 6 ng/mL • Anti Viral Therapy According to Protocol • Azithromycin: 500 mg Stat and 250 mg • Daily for 4 Days | If No Sign of rejection then same protocol as for Normal Serum Creatinine and O2 sat. >93% | |||||||||||||||||||||||||||||||||||||
For general COVID-19 Medical Therapy click here
Chronic Pharmacotherapy
In renal transplant patients, the immune responses are altered, especially the T cell response, due to generalized immunosuppression. Due to recent timeframe of outbreak of COVID-19 and insufficient scientific evidence, there is limited evidence on decreasing or changing the pattern of immunosuppression in renal transplant patients who have been infected with COVID-19. [57]
- Clinical presentation of COVID-19 infection in renal transplant patients are like the clinical presentations of infection in general population. [57].Moreover, renal transplant patients are generally immunocompromised, and this predisposes them to severe infection with COVID-19. Rejection of the graft can occur if immunosuppression is reduced in these patients. Hence given the high rate of mortality in COVID-19 infections, it is suggested that a careful risk vs benefits assessment of whether to continue immunosuppression should be done.[58]
- Managing the immunosuppression in renal transplant patients is difficult and should be based on[58]
- Age
- Severity of COVID-19 infection
- Presence of Co-Morbidities
- Time since the transplant
- In patients with mild to moderate infection, it has been a practice to continue or decrease the doses of immunosuppressive drugs, however this approach can cause high mortality in patients having COVID-19 infection.[58]
Commonly followed protocols for the used immuno-suppressant drugs is as follows:-
- Antiproliferative agents such as MMF and azathioprine [59]
- Should be stopped at the time of admission to hospital
- Prednisolone[59]
- The dosage can be either increased or left unchanged. These can provide immunological protection to the renal graft.
- Corticosteroids have beneficial effects such as
- Immunomodulation and anti-inflammatory properties
- Inhibition of proinflammatory cytokines
- Reduction of white blood cell traffic
- Vascular protective effects
- Maintenance of integrity and permeability of endothelium. [60] [59]
- Immunomodulation and anti-inflammatory properties
- Tacrolimus[59]
- Low doses of tacrolimus can be given but more evidence is required.[59]
- The dose should be reduced to 50%. Target levels for tacrolimus should be 3-5 ng/ml.[61]
- Tocilizumab.[59]
- COVID-19 infection has been found to cause cytokine storm and inflammation due to antiviral immune response, hence trials of anti-interleukin 6 monoclonal antibody Tocilizumab and continuing steroids in infected patients has been considered.
- Cyclosporine
- Cyclosporin A has been shown to have an inhibitory effect on proliferation of corona viruses and hepatitis C virus in vitro, not seen in tacrolimus. Cyclosporin A is thought to inhibit the replication of a diverse array of coronaviruses through its impact on cyclophilin A and B.[62][63]
- Cyclosporine levels should be targeted at 25-50 ng/ml.[61]
Surgery and Device Based Therapy
Currently there are no suurgical intervention required for COVID-19 infection in renal transplant patients.
Transplantation
- The risk of the donor to recipient transmission is unknown.
- The chances of a donor to recipient infection might be affected by exposure of the donor, the infectivity of the donor during the incubation period, and the degree of viremia as well as the viability of virus in the specific organ system. An avid knowledge of local epidemiology is required to identify donors and recipients who may recently be exposed. One method is to have both donor and recipient practice strict social distancing i.e. 2-week home segregation prior to transplant and PCR testing for both individuals, before transplant[64]. The reason for swabbing at the end of the segregation period is to screen asymptomatic shedders.[65]
- In spite of the conceivable negative outcomes, temporary interruption of kidney transplantation might be needed in regions where the rate of infection is high.. [28]
- If a life-saving procedure needs to be performed, then appropriate assessment of infection in donor and recipient must be done along with appropriate informed consent.[66]
- If a transplant candidate is found to be infected with COVID-19, the transplant should be delayed until the patient shows clinical improvement as well as no viral detection. Viral shedding for an increased duration of time has been reported[8][67].
Primary Prevention
- The kidney transplant population must comply with the recommended measures of protection in the general population. Physicians can recommend the use of a mask on an individual basis, especially when the patient goes to health center or other place with agglomeration. People who show symptoms of being infected with SARS-CoV-2 should wear masks to prevent the spread of the disease to others..[69]
- It is prudent to approve a sick leave in patients whose profession involves a high hazard for disease.[69]
- It is recommended to screen kidney transplant patients through teleconsultation so as to decrease the time spent in healthcare centers and decrease the risk of infection [69]
- Maintenance of general hygiene. Washing your hands as often as possible with cleanser and water, or with a alcohol based hand sanitizer (60% alc), particularly: after utilizing the restroom, before eating, in the wake of blowing, coughing or sneezing and after direct contact with patient or their surroundings. Abstain from touching your eyes, nose and mouth before washing your hands.[69]
- Regular cleaning of home with disinfection of objects and surfaces.[69]
- Keep a distance of at least two metres from people with general symptoms such as fever, cough, malaise, sore throat or dyspnea). Abstain from sharing personal belongings.[69]
- During the lockdown circumstance you should stay at home aside from the specified exemptions, as indicated by the standards built up by the political and wellbeing specialists. Telephone the kidney transplant facility at your referral community or the telephone numbers approved by the wellbeing specialists.[69]
- Attempt to follow a right eating routine. Abstain from smoking and liquor. These substances weaken the immune system, and increase the risk of infectious diseases.[69]
Secondary Prevention
All kidney transplant patients with suspected symptoms of COVID-19 are advised to contact their healthcare provider (ideally by phone), to discuss the full course of their treatment and other chronic conditions that they are having. Depending upon the symptoms :-
- Mild symptoms ie
- Moderate/Severe symptoms
Cost Effectiveness of Therapy
Currently various investigational and experimental pharmacological therapies are being tested for COVID-19 treatment. The cost of treatment generally depends on the multitude of COVID-19 complications that an individual develops.
Future or Investigational Therapies
Various pharmacological therapies are currently under investigation as potentials to treat COVID-19
For detailed information click here
References
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(help) - ↑ Lu, Jian; Cui, Jie; Qian, Zhaohui; Wang, Yirong; Zhang, Hong; Duan, Yuange; Wu, Xinkai; Yao, Xinmin; Song, Yuhe; Li, Xiang; Wu, Changcheng; Tang, Xiaolu (2020). "On the origin and continuing evolution of SARS-CoV-2". National Science Review. doi:10.1093/nsr/nwaa036. ISSN 2095-5138.
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(help) - ↑ Chiu, Man-Chun (2003). "Suggested management of immunocompromized kidney patients suffering from SARS". Pediatric Nephrology. 18 (12): 1204–1205. doi:10.1007/s00467-003-1325-8. ISSN 0931-041X.
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- ↑ 7.0 7.1 7.2 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.
- ↑ 8.0 8.1 8.2 8.3 8.4 8.5 8.6 8.7 8.8 8.9 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.
- ↑ Karuthu, Shamila; Blumberg, Emily A. (2012). "Common Infections in Kidney Transplant Recipients". Clinical Journal of the American Society of Nephrology. 7 (12): 2058–2070. doi:10.2215/CJN.04410512. ISSN 1555-9041.
- ↑ Aulagnon, Florence; Scemla, Anne; DeWolf, Susan; Legendre, Christophe; Zuber, Julien (2014). "Diarrhea After Kidney Transplantation". Transplantation. 98 (8): 806–816. doi:10.1097/TP.0000000000000335. ISSN 0041-1337.
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- ↑ Shang, Jian; Ye, Gang; Shi, Ke; Wan, Yushun; Luo, Chuming; Aihara, Hideki; Geng, Qibin; Auerbach, Ashley; Li, Fang (2020). "Structural basis of receptor recognition by SARS-CoV-2". Nature. 581 (7807): 221–224. doi:10.1038/s41586-020-2179-y. ISSN 0028-0836.
- ↑ Yan, Renhong; Zhang, Yuanyuan; Li, Yaning; Xia, Lu; Guo, Yingying; Zhou, Qiang (2020). "Structural basis for the recognition of SARS-CoV-2 by full-length human ACE2". Science. 367 (6485): 1444–1448. doi:10.1126/science.abb2762. ISSN 0036-8075.
- ↑ . doi:10.1016/j.cell.2020.1002.1058. Missing or empty
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(help) - ↑ Wrapp, Daniel; Wang, Nianshuang; Corbett, Kizzmekia S.; Goldsmith, Jory A.; Hsieh, Ching-Lin; Abiona, Olubukola; Graham, Barney S.; McLellan, Jason S. (2020). "Cryo-EM structure of the 2019-nCoV spike in the prefusion conformation". Science. 367 (6483): 1260–1263. doi:10.1126/science.abb2507. ISSN 0036-8075.
- ↑ Chen, Yun; Guo, Yao; Pan, Yihang; Zhao, Zhizhuang Joe (2020). "Structure analysis of the receptor binding of 2019-nCoV". Biochemical and Biophysical Research Communications. 525 (1): 135–140. doi:10.1016/j.bbrc.2020.02.071. ISSN 0006-291X.
- ↑ Malha, Line; Mueller, Franco B.; Pecker, Mark S.; Mann, Samuel J.; August, Phyllis; Feig, Peter U. (2020). "COVID-19 and the Renin-Angiotensin System". Kidney International Reports. 5 (5): 563–565. doi:10.1016/j.ekir.2020.03.024. ISSN 2468-0249.
- ↑ Pan, Xiu-wu; Xu, Da; Zhang, Hao; Zhou, Wang; Wang, Lin-hui; Cui, Xin-gang (2020). "Identification of a potential mechanism of acute kidney injury during the COVID-19 outbreak: a study based on single-cell transcriptome analysis". Intensive Care Medicine. 46 (6): 1114–1116. doi:10.1007/s00134-020-06026-1. ISSN 0342-4642.
- ↑ 20.0 20.1 Nguyen, Austin; David, Julianne K; Maden, Sean K; Wood, Mary A; Weeder, Benjamin R; Nellore, Abhinav; Thompson, Reid F (2020). doi:10.1101/2020.03.22.20040600. Missing or empty
|title=
(help) - ↑ Yang, Xiaobo; Yu, Yuan; Xu, Jiqian; Shu, Huaqing; Xia, Jia'an; Liu, Hong; Wu, Yongran; Zhang, Lu; Yu, Zhui; Fang, Minghao; Yu, Ting; Wang, Yaxin; Pan, Shangwen; Zou, Xiaojing; Yuan, Shiying; Shang, You (2020). "Clinical course and outcomes of critically ill patients with SARS-CoV-2 pneumonia in Wuhan, China: a single-centered, retrospective, observational study". The Lancet Respiratory Medicine. 8 (5): 475–481. doi:10.1016/S2213-2600(20)30079-5. ISSN 2213-2600.
- ↑ Beddhu, Srinivasan (2004). "Hypothesis: The Body Mass Index Paradox and an Obesity, Inflammation, and Atherosclerosis Syndrome in Chronic Kidney Disease". Seminars in Dialysis. 17 (3): 229–232. doi:10.1111/j.0894-0959.2004.17311.x. ISSN 0894-0959.
- ↑ Mohamed, Muner MB; Lukitsch, Ivo; Torres-Ortiz, Aldo E; Walker, Joseph B; Varghese, Vipin; Hernandez-Arroyo, Cesar F; Alqudsi, Muhannad; LeDoux, Jason R; Velez, Juan Carlos Q (2020). "Acute Kidney Injury Associated with Coronavirus Disease 2019 in Urban New Orleans". Kidney360: 10.34067/KID.0002652020. doi:10.34067/KID.0002652020. ISSN 2641-7650.
- ↑ Huang, Chaolin; Wang, Yeming; Li, Xingwang; Ren, Lili; Zhao, Jianping; Hu, Yi; Zhang, Li; Fan, Guohui; Xu, Jiuyang; Gu, Xiaoying; Cheng, Zhenshun; Yu, Ting; Xia, Jiaan; Wei, Yuan; Wu, Wenjuan; Xie, Xuelei; Yin, Wen; Li, Hui; Liu, Min; Xiao, Yan; Gao, Hong; Guo, Li; Xie, Jungang; Wang, Guangfa; Jiang, Rongmeng; Gao, Zhancheng; Jin, Qi; Wang, Jianwei; Cao, Bin (2020). "Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China". The Lancet. 395 (10223): 497–506. doi:10.1016/S0140-6736(20)30183-5. ISSN 0140-6736.
- ↑ Pan, Xiu-wu; Xu, Da; Zhang, Hao; Zhou, Wang; Wang, Lin-hui; Cui, Xin-gang (2020). "Identification of a potential mechanism of acute kidney injury during the COVID-19 outbreak: a study based on single-cell transcriptome analysis". Intensive Care Medicine. 46 (6): 1114–1116. doi:10.1007/s00134-020-06026-1. ISSN 0342-4642.
- ↑ Diao, Bo; Wang, Chenhui; Wang, Rongshuai; Feng, Zeqing; Tan, Yingjun; Wang, Huiming; Wang, Changsong; Liu, Liang; Liu, Ying; Liu, Yueping; Wang, Gang; Yuan, Zilin; Ren, Liang; Wu, Yuzhang; Chen, Yongwen (2020). doi:10.1101/2020.03.04.20031120. Missing or empty
|title=
(help) - ↑ Ai, Tao; Yang, Zhenlu; Hou, Hongyan; Zhan, Chenao; Chen, Chong; Lv, Wenzhi; Tao, Qian; Sun, Ziyong; Xia, Liming (2020). "Correlation of Chest CT and RT-PCR Testing in Coronavirus Disease 2019 (COVID-19) in China: A Report of 1014 Cases". Radiology: 200642. doi:10.1148/radiol.2020200642. ISSN 0033-8419.
- ↑ 28.0 28.1 Michaels, Marian G.; La Hoz, Ricardo M.; Danziger-Isakov, Lara; Blumberg, Emily A.; Kumar, Deepali; Green, Michael; Pruett, Timothy L.; Wolfe, Cameron R. (2020). "Coronavirus disease 2019: Implications of emerging infections for transplantation". American Journal of Transplantation. 20 (7): 1768–1772. doi:10.1111/ajt.15832. ISSN 1600-6135.
- ↑ Chen, Nanshan; Zhou, Min; Dong, Xuan; Qu, Jieming; Gong, Fengyun; Han, Yang; Qiu, Yang; Wang, Jingli; Liu, Ying; Wei, Yuan; Xia, Jia'an; Yu, Ting; Zhang, Xinxin; Zhang, Li (2020). "Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study". The Lancet. 395 (10223): 507–513. doi:10.1016/S0140-6736(20)30211-7. ISSN 0140-6736.
- ↑ . doi:10.1016/ S2213-2600(20)30079-5 Check
|doi=
value (help). Missing or empty|title=
(help) - ↑ 31.0 31.1 Wu, Zunyou; McGoogan, Jennifer M. (2020). "Characteristics of and Important Lessons From the Coronavirus Disease 2019 (COVID-19) Outbreak in China". JAMA. 323 (13): 1239. doi:10.1001/jama.2020.2648. ISSN 0098-7484.
- ↑ Yang, Xiaobo; Yu, Yuan; Xu, Jiqian; Shu, Huaqing; Xia, Jia'an; Liu, Hong; Wu, Yongran; Zhang, Lu; Yu, Zhui; Fang, Minghao; Yu, Ting; Wang, Yaxin; Pan, Shangwen; Zou, Xiaojing; Yuan, Shiying; Shang, You (2020). "Clinical course and outcomes of critically ill patients with SARS-CoV-2 pneumonia in Wuhan, China: a single-centered, retrospective, observational study". The Lancet Respiratory Medicine. 8 (5): 475–481. doi:10.1016/S2213-2600(20)30079-5. ISSN 2213-2600.
- ↑ 33.0 33.1 Naicker, Saraladevi; Yang, Chih-Wei; Hwang, Shang-Jyh; Liu, Bi-Cheng; Chen, Jiang-Hua; Jha, Vivekanand (2020). "The Novel Coronavirus 2019 epidemic and kidneys". Kidney International. 97 (5): 824–828. doi:10.1016/j.kint.2020.03.001. ISSN 0085-2538.
- ↑ 34.0 34.1 34.2 Bussalino, Elisabetta; De Maria, Andrea; Russo, Rodolfo; Paoletti, Ernesto (2020). "Immunosuppressive therapy maintenance in a kidney transplant recipient with SARS‐CoV‐2 pneumonia: A case report". American Journal of Transplantation. 20 (7): 1922–1924. doi:10.1111/ajt.15920. ISSN 1600-6135.
- ↑ 35.0 35.1 35.2 Seminari, Elena; Colaneri, Marta; Sambo, Margherita; Gallazzi, Ilaria; Di Matteo, Angela; Roda, Silvia; Bruno, Raffaele; Mondelli, Mario U.; Brunetti, Enrico; Maiocchi, Laura; Zuccaro, Valentina; Pagnucco, Layla; Mariani, Bianca; Ludovisi, Serena; Lissandrin, Raffaella; Parisi, Aldo; Sacchi, Paolo; Patruno, Savino F. A.; Michelone, Giuseppe; Gulminetti, Roberto; Zanaboni, Domenico; Novati, Stefano; Maserati, Renato; Orsolini, Paolo; Vecchia, Marco; Sciarra, Marco; Asperges, Erika; Di Filippo, Alessandro; Biscarini, Simona; Lupi, Matteo; Pieri, Teresa C.; Sachs, Michele; Valsecchi, Pietro; Perlini, Stefano; Alfano, Claudia; Bonzano, Marco; Briganti, Federica; Crescenzi, Giuseppe; Falchi, Anna G.; Guarnone, Roberta; Guglielmana, Barbara; Maggi, Elena; Martino, Ilaria; Pettenazza, Pietro; Pioli di Marco, Serena; Quaglia, Federica; Sabena, Anna; Salinaro, Francesco; Speciale, Francesco; Zunino, Ilaria; De Lorenzo, Marzia; Secco, Gianmarco; Dimitry, Lorenzo; Cappa, Giovanni; Maisak, Igor; Chiodi, Benedetta; Sciarrini, Massimiliano; Barcella, Bruno; Resta, Flavia; Moroni, Luca; Vezzoni, Giulia; Scattaglia, Lorenzo; Boscolo, Elisa; Zattera, Caterina; Fidel, Tassi M.; Vincenzo, Capozza; Vignaroli, Damiano; Bazzini, Marco; Iotti, Giorgio; Mojoli, Francesco; Belliato, Mirko; Perotti, Luciano; Mongodi, Silvia; Tavazzi, Guido; Marseglia, Gianluigi; Licari, Amelia; Brambilla, Ilaria; Daniela, Barbarini; Antonella, Bruno; Patrizia, Cambieri; Giulia, Campanini; Giuditta, Comolli; Marta, Corbella; Rossana, Daturi; Milena, Furione; Bianca, Mariani; Roberta, Maserati; Enza, Monzillo; Stefania, Paolucci; Maurizio, Parea; Elena, Percivalle; Antonio, Piralla; Francesca, Rovida; Antonella, Sarasini; Maurizio, Zavattoni; Guy, Adzasehoun; Laura, Bellotti; Ermanna, Cabano; Giuliana, Casali; Luca, Dossena; Gabriella, Frisco; Gabriella, Garbagnoli; Alessia, Girello; Viviana, Landini; Claudia, Lucchelli; Valentina, Maliardi; Simona, Pezzaia; Marta, Premoli; Alice, Bonetti; Giacomo, Caneva; Irene, Cassaniti; Alfonso, Corcione; Di Martino, Raffella; Di Napoli, Annapia; Alessandro, Ferrari; Guglielmo, Ferrari; Loretta, Fiorina; Federica, Giardina; Alessandra, Mercato; Federica, Novazzi; Giacomo, Ratano; Beatrice, Rossi; Maria, Sciabica I.; Monica, Tallarita; Edoardo, Vecchio N.; Cerino, Antonella; Varchetta, Stefania; Oliviero, Barbara; Mantovani, Stefania; Mele, Dalila; Calvi, Monica; Tizzonis, Michela; Nicora, Carlo; Triarico, Antonio; Petronella, Vincenzo; Marena, Carlo; Muzzi, Alba; Lago, Paolo; Comandatore, Francesco; Bissignandi, Gherard; Gaiarsa, Stefano; Rettani, Marco; Band, Claudio (2020). "SARS Cov‐2 infection in a renal‐transplanted patient: A case report". American Journal of Transplantation. 20 (7): 1882–1884. doi:10.1111/ajt.15902. ISSN 1600-6135.
- ↑ 36.0 36.1 36.2 Marx, David; Moulin, Bruno; Fafi‐Kremer, Samira; Benotmane, Ilies; Gautier, Gabriela; Perrin, Peggy; Caillard, Sophie (2020). "First case of COVID‐19 in a kidney transplant recipient treated with belatacept". American Journal of Transplantation. 20 (7): 1944–1946. doi:10.1111/ajt.15919. ISSN 1600-6135.
- ↑ 37.0 37.1 37.2 Gandolfini, Ilaria; Delsante, Marco; Fiaccadori, Enrico; Zaza, Gianluigi; Manenti, Lucio; Degli Antoni, Anna; Peruzzi, Licia; Riella, Leonardo V.; Cravedi, Paolo; Maggiore, Umberto (2020). "COVID‐19 in kidney transplant recipients". American Journal of Transplantation. 20 (7): 1941–1943. doi:10.1111/ajt.15891. ISSN 1600-6135.
- ↑ 38.0 38.1 38.2 Guillen, Elena; Pineiro, Gaston J.; Revuelta, Ignacio; Rodriguez, Diana; Bodro, Marta; Moreno, Asunción; Campistol, Josep M.; Diekmann, Fritz; Ventura‐Aguiar, Pedro (2020). "Case report of COVID‐19 in a kidney transplant recipient: Does immunosuppression alter the clinical presentation?". American Journal of Transplantation. 20 (7): 1875–1878. doi:10.1111/ajt.15874. ISSN 1600-6135.
- ↑ 39.0 39.1 . doi:10.1016/ S2213-2600(20)30182-X Check
|doi=
value (help). Missing or empty|title=
(help) - ↑ 40.0 40.1 40.2 Haberal, Mehmet (2020). "COVID-19 UPDATE". Experimental and Clinical Transplantation. 18 (2): 139–140. doi:10.6002/ect.2020.000e. ISSN 1304-0855.
- ↑ 41.0 41.1 41.2 41.3 "bts.org.uk" (PDF).
- ↑ 42.0 42.1 42.2 "www.europeanurology.com".
- ↑ 43.0 43.1 Sharma, Garima; Volgman, Annabelle Santos; Michos, Erin D. (2020). "Sex Differences in Mortality From COVID-19 Pandemic". JACC: Case Reports. doi:10.1016/j.jaccas.2020.04.027. ISSN 2666-0849.
- ↑ 44.0 44.1 44.2 44.3 Akalin, Enver; Azzi, Yorg; Bartash, Rachel; Seethamraju, Harish; Parides, Michael; Hemmige, Vagish; Ross, Michael; Forest, Stefanie; Goldstein, Yitz D.; Ajaimy, Maria; Liriano-Ward, Luz; Pynadath, Cindy; Loarte-Campos, Pablo; Nandigam, Purna B.; Graham, Jay; Le, Marie; Rocca, Juan; Kinkhabwala, Milan (2020). "Covid-19 and Kidney Transplantation". New England Journal of Medicine. 382 (25): 2475–2477. doi:10.1056/NEJMc2011117. ISSN 0028-4793.
- ↑ 45.0 45.1 45.2 Banerjee, Debasish; Popoola, Joyce; Shah, Sapna; Ster, Irina Chis; Quan, Virginia; Phanish, Mysore (2020). "COVID-19 infection in kidney transplant recipients". Kidney International. 97 (6): 1076–1082. doi:10.1016/j.kint.2020.03.018. ISSN 0085-2538.
- ↑ 46.0 46.1 46.2 Nacif, Lucas Souto; Zanini, Leonardo Y.; Waisberg, Daniel R.; Pinheiro, Rafael S.; Galvão, Flávio; Andraus, Wellington; D'Albuquerque, Luiz Carneiro (2020). "COVID-19 in solid organ transplantation patients: A systematic review". Clinics. 75. doi:10.6061/clinics/2020/e1983. ISSN 1807-5932.
- ↑ 47.0 47.1 "Samavat".
- ↑ Selby, Nicholas M; Forni, Lui G; Laing, Christopher M; Horne, Kerry L; Evans, Rhys DR; Lucas, Bethany J; Fluck, Richard J (2020). "Covid-19 and acute kidney injury in hospital: summary of NICE guidelines". BMJ: m1963. doi:10.1136/bmj.m1963. ISSN 1756-1833.
- ↑ 49.0 49.1 49.2 49.3 Banerjee, Debasish; Popoola, Joyce; Shah, Sapna; Ster, Irina Chis; Quan, Virginia; Phanish, Mysore (2020). "COVID-19 infection in kidney transplant recipients". Kidney International. 97 (6): 1076–1082. doi:10.1016/j.kint.2020.03.018. ISSN 0085-2538.
- ↑ 50.0 50.1
- ↑ "Harrison's principles of internal medicine : Kasper, Dennis L : Free Download, Borrow, and Streaming : Internet Archive".
- ↑ Banerjee, Debasish; Popoola, Joyce; Shah, Sapna; Ster, Irina Chis; Quan, Virginia; Phanish, Mysore (2020). "COVID-19 infection in kidney transplant recipients". Kidney International. 97 (6): 1076–1082. doi:10.1016/j.kint.2020.03.018. ISSN 0085-2538.
- ↑ Ostermann, Marlies; Joannidis, Michael (2016). "Acute kidney injury 2016: diagnosis and diagnostic workup". Critical Care. 20 (1). doi:10.1186/s13054-016-1478-z. ISSN 1364-8535.
- ↑ Schrezenmeier, E. V.; Barasch, J.; Budde, K.; Westhoff, T.; Schmidt-Ott, K. M. (2017). "Biomarkers in acute kidney injury - pathophysiological basis and clinical performance". Acta Physiologica. 219 (3): 556–574. doi:10.1111/apha.12764. ISSN 1748-1708.
- ↑ Kashani, Kianoush; Cheungpasitporn, Wisit; Ronco, Claudio (2017). "Biomarkers of acute kidney injury: the pathway from discovery to clinical adoption". Clinical Chemistry and Laboratory Medicine (CCLM). 55 (8): 1074–1089. doi:10.1515/cclm-2016-0973. ISSN 1437-4331.
- ↑ Oh, Dong-Jin (2020). "A long journey for acute kidney injury biomarkers". Renal Failure. 42 (1): 154–165. doi:10.1080/0886022X.2020.1721300. ISSN 0886-022X.
- ↑ 57.0 57.1 Zhu, Lan; Xu, Xizhen; Ma, Ke; Yang, Junling; Guan, Hanxiong; Chen, Song; Chen, Zhishui; Chen, Gang (2020). "Successful recovery of COVID‐19 pneumonia in a renal transplant recipient with long‐term immunosuppression". American Journal of Transplantation. doi:10.1111/ajt.15869. ISSN 1600-6135.
- ↑ 58.0 58.1 58.2 Banerjee D, Popoola J, Shah S, Ster IC, Quan V, Phanish M (June 2020). "COVID-19 infection in kidney transplant recipients". Kidney Int. 97 (6): 1076–1082. doi:10.1016/j.kint.2020.03.018. PMC 7142878 Check
|pmc=
value (help). PMID 32354637 Check|pmid=
value (help). - ↑ 59.0 59.1 59.2 59.3 59.4 59.5 Banerjee D, Popoola J, Shah S, Ster IC, Quan V, Phanish M (June 2020). "COVID-19 infection in kidney transplant recipients". Kidney Int. 97 (6): 1076–1082. doi:10.1016/j.kint.2020.03.018. PMC 7142878 Check
|pmc=
value (help). PMID 32354637 Check|pmid=
value (help). - ↑ Lansbury, Louise E.; Rodrigo, Chamira; Leonardi-Bee, Jo; Nguyen-Van-Tam, Jonathan; Shen Lim, Wei (2020). "Corticosteroids as Adjunctive Therapy in the Treatment of Influenza". Critical Care Medicine. 48 (2): e98–e106. doi:10.1097/CCM.0000000000004093. ISSN 0090-3493.
- ↑ 61.0 61.1 "www.massgeneral.org" (PDF).
- ↑ de Wilde, Adriaan H.; Zevenhoven-Dobbe, Jessika C.; van der Meer, Yvonne; Thiel, Volker; Narayanan, Krishna; Makino, Shinji; Snijder, Eric J.; van Hemert, Martijn J. (2011). "Cyclosporin A inhibits the replication of diverse coronaviruses". Journal of General Virology. 92 (11): 2542–2548. doi:10.1099/vir.0.034983-0. ISSN 0022-1317.
- ↑ Tanaka, Yoshikazu; Sato, Yuka; Sasaki, Takashi (2013). "Suppression of Coronavirus Replication by Cyclophilin Inhibitors". Viruses. 5 (5): 1250–1260. doi:10.3390/v5051250. ISSN 1999-4915.
- ↑ Ho, Quan Yao; Chung, Shimin J.; Gan, Valerie H. L.; Ng, Lay Guat; Tan, Ban Hock; Kee, Terence Y. S. (2020). "High‐immunological risk living donor renal transplant during the COVID‐19 outbreak: Uncertainties and ethical dilemmas". American Journal of Transplantation. 20 (7): 1949–1951. doi:10.1111/ajt.15949. ISSN 1600-6135.
- ↑ Ma, Mai-Juan; Kang, Dian-Min; Duan, Li-Jun; Yao, Lin; Wang, Guo-Lin; Anderson, Benjamin D; Yao, Ming-Xiao; Pang, Bo; Lin, Can-Fang; Ji, Sheng-Xiang; Gao, Feng; Hang, Yang; Sun, Wen-Kui; Kou, Zeng-Qiang; Lei, Jie; Li, Cun-Bao; Zhao, Xiang-Na; Zhang, Xiao-Li; Jiang, Xiao-Lin (2020). "Transmission Potential of Asymptomatic and Paucisymptomatic Severe Acute Respiratory Syndrome Coronavirus 2 Infections: A 3-Family Cluster Study in China". The Journal of Infectious Diseases. 221 (12): 1948–1952. doi:10.1093/infdis/jiaa206. ISSN 0022-1899.
- ↑ Zhang, Sheng; Tong, Yi Xin; Xiao, Ai Tang (2020). "Profile of RT-PCR for SARS-CoV-2: a preliminary study from 56 COVID-19 patients". Clinical Infectious Diseases. doi:10.1093/cid/ciaa460. ISSN 1058-4838.
- ↑ . doi:10.3201/eid2608.201097. Check
|doi=
value (help). Missing or empty|title=
(help) - ↑ 69.0 69.1 69.2 69.3 69.4 69.5 69.6 69.7 69.8 López, Verónica; Vázquez, Teresa; Alonso-Titos, Juana; Cabello, Mercedes; Alonso, Angel; Beneyto, Isabel; Crespo, Marta; Díaz-Corte, Carmen; Franco, Antonio; González-Roncero, Francisco; Gutiérrez, Elena; Guirado, Luis; Jiménez, Carlos; Jironda, Cristina; Lauzurica, Ricardo; Llorente, Santiago; Mazuecos, Auxiliadora; Paul, Javier; Rodríguez-Benot, Alberto; Ruiz, Juan Carlos; Sánchez-Fructuoso, Ana; Sola, Eugenia; Torregrosa, Vicente; Zárraga, Sofía; Hernández, Domingo (2020). "Recommendations on management of the SARS-CoV-2 coronavirus pandemic (Covid-19) in kidney transplant patients". Nefrología (English Edition). doi:10.1016/j.nefroe.2020.03.017. ISSN 2013-2514.