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Life Threatening Causes


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===Life Threatening Causes===
Life-threatening causes include conditions such as pneumatosis, pneumoperitoneum, and pericolic fluid collections is important because they indicate a need for urgent surgical management
Life-threatening causes include conditions such as pneumatosis, pneumoperitoneum, and pericolic fluid collections is important because they indicate a need for urgent surgical management



Revision as of 21:12, 18 June 2021

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List of terms related to Typhlitis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Synonyms and keywords: neutropenic colitis; neutropenic enterocolitis; cecitis

Overview

Typhlitis occurs in neutropenic patients undergoing treatment for a malignancy, most frequently patients with acute leukemia who are receiving chemotherapy. It has also been reported in patients with aplastic anemia, lymphoma, or acquired immunodeficiency syndrome and after kidney transplantation. Typhlitis is characterized by edema and inflammation of the cecum, the ascending colon, and sometimes the terminal ileum. The inflammation can be so severe that transmural necrosis, perforation, and death can result. The mechanism of the condition is not known, but it is probably due to a combination of ischemia, infection (especially with cytomegalovirus), mucosal hemorrhage, and perhaps neoplastic infiltration. Treatment consists of bowel rest, total parenteral nutrition, antibiotics, and aggressive fluid and electrolyte replacement.

Historical Perspective

[Disease name] was first discovered by [name of scientist], a [nationality + occupation], in [year]/during/following [event].

The association between [important risk factor/cause] and [disease name] was made in/during [year/event].

In [year], [scientist] was the first to discover the association between [risk factor] and the development of [disease name].

In [year], [gene] mutations were first implicated in the pathogenesis of [disease name].

There have been several outbreaks of [disease name], including -----.

In [year], [diagnostic test/therapy] was developed by [scientist] to treat/diagnose [disease name].

Classification

There is no established system for the classification of typhlitis.

Pathophysiology

Causes by Organ System

Cardiovascular No underlying causes
Chemical/Poisoning No underlying causes
Dental No underlying causes
Dermatologic No underlying causes
Drug Side Effect Doxorubicin Hydrochloride, Sulfasalazine
Ear Nose Throat No underlying causes
Endocrine No underlying causes
Environmental No underlying causes
Gastroenterologic No underlying causes
Genetic No underlying causes
Hematologic No underlying causes
Iatrogenic No underlying causes
Infectious Disease No underlying causes
Musculoskeletal/Orthopedic No underlying causes
Neurologic No underlying causes
Nutritional/Metabolic No underlying causes
Obstetric/Gynecologic No underlying causes
Oncologic No underlying causes
Ophthalmologic No underlying causes
Overdose/Toxicity No underlying causes
Psychiatric No underlying causes
Pulmonary No underlying causes
Renal/Electrolyte No underlying causes
Rheumatology/Immunology/Allergy No underlying causes
Sexual No underlying causes
Trauma No underlying causes
Urologic No underlying causes
Miscellaneous No underlying causes

Causes in Alphabetical Order

Differentiating Typhlitis from other Diseases

Typhlitis must be distinguished from other diseases characterized by fever, abdominal pain, and diarrhea. Before diagnosing this condition, some diseases with similar clinical manifestations should be ruled out.

  1. Clostridium difficile infection[4]
  2. Cytomegalovirus colitis[5]
  3. Norovirus infection[6]
  4. Graft versus host disease[7]
  5. Acute appendicitis[8]
  6. Ischemic colitis[9]

Epidemiology and Demographics

The prevalence of neutropenic enterocolitis varies between studies. Gorschlüter et al. conducted a systematic review and found that the incidence rate from 21 studies was 5.3 percent in patients hospitalized for hematological malignancies, high-dose chemotherapy for solid tumors, or aplastic anemia. Another cohort study discovered it in 3.5% of 317 severely neutropenic patients. The prevalence of neutropenic enterocolitis has been increasing in tandem with the increased use of chemotherapy, especially the agents known for causing mucositis.[10][11]

Patients with hematologic malignancies are more likely to develop neutropenic enterocolitis as a result of their underlying malignancy as well as their treatment regimens. Neutropenic enterocolitis has also been reported in patients taking immunosuppressive medications, patients diagnosed with solid tumors and autoimmune conditions.[12]

Risk Factors

Common risk factors in the development of typhlitis include hematological, solid tumors, neutropenic and Immunocompromised individuals.[13]

Screening

There is insufficient evidence to recommend routine screening for neutropenic enterocolitis.

Natural History, Complications, and Prognosis

Common complications of neutropenic enterocolitis include perforation, peritonitis, sepsis, and abscess formation, which are all caused by the pathology (bowel wall inflammation). Other risks are related to pancytopenia include thrombocytopenia-related extreme bleeding and delayed healing.

Diagnosis

Diagnostic Study of Choice

There are no established criteria for the diagnosis of Typhlitis.

History and Symptoms

The most common symptoms of typhlitis include fever, abdominal pain, and diarrhea. In severe cases, diarrhea can be bloody. Abdominal distension and paralytic ileus may also ocur in patients.

Physical Examination

Common physical examination of patients with neutropenic enterocolitis is usually remarkable for Abdominal discomfort which can be diffuse or localized, with the right lower quadrant being the most common location. A rigid abdomen could be an indication of bowel perforation.[14]

Laboratory Findings

There are no diagnostic laboratory findings associated with Typhlitis.

Electrocardiogram

There are no ECG findings associated with Typhlitis

Echocardiography/ Ultrasound

There are no echocardiography/ultrasound findings associated with [disease name].

CT Abdomen





Life Threatening Causes

Life-threatening causes include conditions such as pneumatosis, pneumoperitoneum, and pericolic fluid collections is important because they indicate a need for urgent surgical management

Other Imaging Findings/Ultrasound Abdomen

Ultrasound (US) may be helpful in the diagnosis of neutropenic enterocolitis. Findings on an ultrasound suggestive of neutropenic enterocolitis include circumferential wall thickening and prominent submucosa .[16]

Other Diagnostic Studies

There are no other diagnostic studies associated with [disease name].

OR

[Diagnostic study] may be helpful in the diagnosis of [disease name]. Findings suggestive of/diagnostic of [disease name] include [finding 1], [finding 2], and [finding 3].

OR

Other diagnostic studies for [disease name] include [diagnostic study 1], which demonstrates [finding 1], [finding 2], and [finding 3], and [diagnostic study 2], which demonstrates [finding 1], [finding 2], and [finding 3].

Treatment

Medical Therapy

  • 1. Community-acquired infection in adults [17]
  • 1.1. Mild-to-moderate severity (perforated or abscessed appendicitis and other infections of mild-to-moderate severity):
  • 1.1.1. Single agent:
  • Preferred regimen (1): Cefoxitin 2 g IV q6h
  • Preferred regimen (2): Ertapenem 1 g IV q24h
  • Preferred regimen (3): Moxifloxacin 400 mg IV q24h
  • Preferred regimen (4): Tigecycline 100 mg initial dose, THEN 50 mg IV q12h
  • Preferred regimen (5): Ticarcillin-clavulanic acid 3.1 g IV q6h; FDA labeling indicates 200 mg/kg/day in divided doses every 6 h for moderate infection
  • 1.1.2. Combination:
  • 1.2. High risk or severity (severe physiologic disturbance, advanced age, or immunocompromised state):
  • 1.2.1. Single agent:
  • Preferred regimen (1): Imipenem-cilastatin 500 mg IV q6h OR 1 g q8h
  • Preferred regimen (2): Meropenem 1 g IV q8h
  • Preferred regimen (3): Doripenem 500 mg IV q8h
  • Preferred regimen (4): Piperacillin-tazobactam 3.375 g IV q6h
  • 1.2.2. Combination:
  • Preferred regimen (1): Cefepime 2 g q8–12 h AND Metronidazole 500 mg IV q8–12 h or 1500 mg q24h
  • Preferred regimen (2): Ceftazidime 2 g q8h AND Metronidazole 500 mg IV q8–12 h or 1500 mg q24h
  • Preferred regimen (3): Ciprofloxacin 400 mg q12h AND Metronidazole 500 mg IV q8–12 h or 1500 mg q24h
  • Preferred regimen (4): Levofloxacin 750 mg q24h AND Metronidazole 500 mg IV q8–12 h or 1500 mg q24h
  • Note: Antimicrobial therapy of established infection should be limited to 4–7 days, unless it is difficult to achieve adequate source control. Longer durations of therapy have not been associated with improved outcome.
  • 2. Health Care–Associated Complicated Intra-abdominal Infection [17]
  • 2.1. Less than 20% Resistant Pseudomonas aeruginosa, Extended-spectrum B-lactamase-producing Enterobacteriaceae, Acinetobacter, or other multidrug resistant gram-negative bacilli:
  • 2.2. Extended-spectrum B-lactamase-producing Enterobacteriaceae:
  • 2.3. Pseudomonas aeruginosa with more than 20% resistant to ceftazidime:
  • 2.4.Methicillin-resistant Staphylococcus aureus (MRSA):
  • Preferred regimen: Vancomycin 15–20 mg/kg IV q8–12 h
  • Note: Antimicrobial therapy of established infection should be limited to 4–7 days, unless it is difficult to achieve adequate source control. Longer durations of therapy have not been associated with improved outcome.
  • 3. Community-acquired infection in pediatric patients[17]
  • 3.1. Single agent:
  • Preferred regimen (1): Ertapenem 3 months to 12 years 15 mg/kg bid (not to exceed 1 g/day) Every 12 h, older than 13 years 1 g/day Every 24 h OR
  • Preferred regimen (2): Meropenem 60 mg/kg/day q8h
  • Preferred regimen (3): Imipenem-cilastatin 60–100 mg/kg/day IV q6h
  • Preferred regimen (4): Ticarcillin-clavulanate 200–300 mg/kg/day IV of ticarcillin component q4–6 h
  • Preferred regimen (5): Piperacillin-tazobactam 200–300 mg/kg/day IV of piperacillin component q6–8 h
  • 3.2.Combination:
  • Preferred regimen(1): Ceftriaxone 50–75 mg/kg/day q12–24 h, AND Metronidazole 30–40 mg/kg/day q8h
  • Preferred regimen(2): Cefotaxime 150–200 mg/kg/day q6–8 h, AND Metronidazole 30–40 mg/kg/day q8h
  • Preferred regimen(3): Cefepime 100 mg/kg/day q12h, AND Metronidazole 30–40 mg/kg/day q8h
  • Preferred regimen(4): Ceftazidime 150 mg/kg/day q8 h, AND Metronidazole 30–40 mg/kg/day q8h
  • Preferred regimen(5): Gentamicin 3–7.5 mg/kg/day q2–4 h, AND Metronidazole 30–40 mg/kg/day q8h ± Ampicillin 200 mg/kg/day q6h
  • Preferred regimen(6): Gentamicin 3–7.5 mg/kg/day q2–4 h, AND Clindamycin 20–40 mg/kg/day q6–8 h ± Ampicillin 200 mg/kg/day q6h
  • Preferred regimen(7): Tobramycin 3.0–7.5 mg/kg/day q8–24 h, AND Metronidazole 30–40 mg/kg/day q8h ± Ampicillin 200 mg/kg/day q6h
  • Preferred regimen(8): Tobramycin 3.0–7.5 mg/kg/day q8–24 h, AND Clindamycin 20–40 mg/kg/day q6–8 h ± Ampicillin 200 mg/kg/day q6h
  • Note: Antimicrobial therapy of established infection should be limited to 4–7 days, unless it is difficult to achieve adequate source control. Longer durations of therapy have not been associated with improved outcome.

References

  1. Cloutier RL (2009). "Neutropenic enterocolitis". Emerg Med Clin North Am. 27 (3): 415–22. doi:10.1016/j.emc.2009.04.002. PMID 19646645.
  2. Rodrigues FG, Dasilva G, Wexner SD (2017). "Neutropenic enterocolitis". World J Gastroenterol. 23 (1): 42–47. doi:10.3748/wjg.v23.i1.42. PMC 5221285. PMID 28104979.
  3. "StatPearls".   ( ). 2021:  . PMID 31869058.
  4. Czepiel J, Dróżdż M, Pituch H, Kuijper EJ, Perucki W, Mielimonka A; et al. (2019). "Clostridium difficile infection: review". Eur J Clin Microbiol Infect Dis. 38 (7): 1211–1221. doi:10.1007/s10096-019-03539-6. PMC 6570665 Check |pmc= value (help). PMID 30945014.
  5. Pillet S, Pozzetto B, Roblin X (2016). "Cytomegalovirus and ulcerative colitis: Place of antiviral therapy". World J Gastroenterol. 22 (6): 2030–45. doi:10.3748/wjg.v22.i6.2030. PMC 4726676. PMID 26877608.
  6. "StatPearls". 2021. PMID 31335045.
  7. Ramachandran V, Kolli SS, Strowd LC (2019). "Review of Graft-Versus-Host Disease". Dermatol Clin. 37 (4): 569–582. doi:10.1016/j.det.2019.05.014. PMID 31466596.
  8. Bhangu A, Søreide K, Di Saverio S, Assarsson JH, Drake FT (2015). "Acute appendicitis: modern understanding of pathogenesis, diagnosis, and management". Lancet. 386 (10000): 1278–1287. doi:10.1016/S0140-6736(15)00275-5. PMID 26460662.
  9. Theodoropoulou A, Koutroubakis IE (2008). "Ischemic colitis: clinical practice in diagnosis and treatment". World J Gastroenterol. 14 (48): 7302–8. doi:10.3748/wjg.14.7302. PMC 2778113. PMID 19109863.
  10. Gorschlüter M, Mey U, Strehl J, Ziske C, Schepke M, Schmidt-Wolf IG; et al. (2005). "Neutropenic enterocolitis in adults: systematic analysis of evidence quality". Eur J Haematol. 75 (1): 1–13. doi:10.1111/j.1600-0609.2005.00442.x. PMID 15946304.
  11. Aksoy DY, Tanriover MD, Uzun O, Zarakolu P, Ercis S, Ergüven S; et al. (2007). "Diarrhea in neutropenic patients: a prospective cohort study with emphasis on neutropenic enterocolitis". Ann Oncol. 18 (1): 183–189. doi:10.1093/annonc/mdl337. PMID 17023562.
  12. Nesher L, Rolston KV (2013). "Neutropenic enterocolitis, a growing concern in the era of widespread use of aggressive chemotherapy". Clin Infect Dis. 56 (5): 711–7. doi:10.1093/cid/cis998. PMID 23196957.
  13. Biasoli, I; Nucci, M; Spector, N; Portugal, R; Domingues, A; Pulcheri, W (1997). "Risk factors for typhlitis". Oncology Reports. doi:10.3892/or.4.5.1029. ISSN 1021-335X.
  14. Nesher, L.; Rolston, K. V. I. (2012). "Neutropenic Enterocolitis, a Growing Concern in the Era of Widespread Use of Aggressive Chemotherapy". Clinical Infectious Diseases. 56 (5): 711–717. doi:10.1093/cid/cis998. ISSN 1058-4838.
  15. Kirkpatrick, Iain D. C.; Greenberg, Howard M. (2003). "Gastrointestinal Complications in the Neutropenic Patient: Characterization and Differentiation with Abdominal CT". Radiology. 226 (3): 668–674. doi:10.1148/radiol.2263011932. ISSN 0033-8419.
  16. Tamburrini, Stefania; Setola, Francesca Rosa; Belfiore, Maria Paola; Saturnino, Pietro Paolo; Della Casa, Maria Gabriella; Sarti, Giuseppe; Abete, Roberta; Marano, Ines (2018). "Ultrasound diagnosis of typhlitis". Journal of Ultrasound. 22 (1): 103–106. doi:10.1007/s40477-018-0333-2. ISSN 1876-7931.
  17. 17.0 17.1 17.2 Solomkin JS, Mazuski JE, Bradley JS, Rodvold KA, Goldstein EJ, Baron EJ; et al. (2010). "Diagnosis and management of complicated intra-abdominal infection in adults and children: guidelines by the Surgical Infection Society and the Infectious Diseases Society of America". Clin Infect Dis. 50 (2): 133–64. doi:10.1086/649554. PMID 20034345.