Diarrheal syndrome in the practice of a general practitioner: medical algorithm
DOI: 10.32364/2587-6821-2023-7-5-8
M.A. Livzan, O.V. Gaus, D.A. Gavrilenko
Omsk State Medical University, Omsk, Russian Federation
According to the frequency of seeking medical care, diarrhea is one of the most common complaints, being an important health problem. Acute diarrhea, as a rule, is infectious in nature, thus, the scope of diagnostics is aimed at assessing the patient's condition and clarifying the pathogen etiology. Chronic diarrhea has a diverse etiology, which poses a difficult task for the clinician to conduct differential diagnosis. Therefore, most guidelines on the relevant problem suggest the use of medical algorithms aimed at step-by-step exclusion of diseases accompanied by diarrhea: from the most common causes to the more rare ones. First of all, it is necessary to detail complaints, identify the presence of red flags, collect an epidemiological, drug and hereditary history, assess the nutrition habits, dietary preferences of the patient and their possible association with the manifestation of diarrhea. The general examination reveals signs of dehydration and malabsorption, as well as the presence of stigma of the underlying disease. Also, at the first stage, it is advisable to conduct the minimum necessary laboratory and instrumental studies. Subsequently, if there are difficulties in establishing the diagnosis, it is advised to re-assess the clinical picture and prescribe additional examination methods. Alongside this, symptomatic and pathogenetic therapy, dehydration, timely detection and correction of electrolyte disorders should be indicated for all patients with acute and chronic diarrhea at the stage of further examination and diagnosis confirmation.
Keywords: acute diarrhea, chronic diarrhea, diagnostic algorithm, celiac disease, intestinal tuberculosis, ischemic colitis, radiation colitis, eosinophilic colitis, microscopic colitis, Whipple disease.
For citation: Livzan M.A., Gaus O.V., Gavrilenko D.A. Diarrheal syndrome in the practice of a general practitioner: medical algorithm. Russian Medical Inquiry. 2023;7(5):300–309 (in Russ.). DOI: 10.32364/2587-6821-2023-7-5-8.
About the authors:
Maria A. Livzan — Dr. Sc. (Med.), Professor, Corresponding Member of the Russian Academy of Sciences, Head of the Department of Faculty Therapy and Gastroenterology, rector; Omsk State Medical University; 12, Lenin str., Omsk, 644099, Russian Federation; ORCID iD 0000-0002-6581-7017.
Olga V. Gaus — C. Sc. (Med.), Assistant Professor of the Department of Faculty Therapy and Gastroenterology, Omsk State Medical University; 12, Lenin str., Omsk, 644099, Russian Federation; ORCID iD 0000-0001-9370-4768.
Daria A. Gavrilenko — 6th year student of the Faculty of Medicine, Omsk State Medical University; 12, Lenin str., Omsk, 644099, Russian Federation. Contact information: Olga V. Gaus, e-mail: gaus_olga@bk.ru.
Financial Disclosure: no authors have a financial or property interest in any material or method mentioned.
There is no conflict of interests.
Received 03.04.2023.
Revised 24.04.2023.
Accepted 22.05.2023.
2. Fine K.D., Schiller L.R. AGA technical review on the evaluation and management of chronic diarrhea. Gastroenterology. 1999;116(6):1464–1486. DOI: 10.1016/s0016-5085(99)70513-5.
3. Парфенов А.И. Четыре варианта патогенеза и терапии диареи. Терапевтический архив. 2015;87(12):5–12. DOI: 10.17116/terarkh201587125-12. [Parfenov E.V. Four variants of the pathogenesis of diarrhea and its therapy. Terapevticheskii Arkhiv. 2015;87(12):5–12 (in Russ.)]. DOI: 10.17116/terarkh201587125-12.
4. Sokic-Milutinovic A., Pavlovic-Markovic A., Tomasevic R.S., Lukic S. Diarrhea as a Clinical Challenge: General Practitioner Approach. Dig Dis. 2022;40(3):282–289. DOI: 10.1159/000517111.
5. Keddy K.H. Old and new challenges related to global burden of diarrhoea. Lancet Infect Dis. 2018;18(11):1163–1164. DOI: 10.1016/S1473-3099(18)30424-9.
6. Arasaradnam R.P., Brown S., Forbes A. et al. Guidelines for the investigation of chronic diarrhoea in adults: British Society of Gastroenterology, 3rd ed. Gut. 2018;67(8):1380–1399. DOI: 10.1136/gutjnl-2017-315909.
7. Алексеенко С.А., Багдасарян А.А., Бакулин И.Г. и др. Краткие алгоритмы ведения пациентов на этапе оказания первичной медико-санитарной помощи. Пособие для врачей-терапевтов. Под ред. Драпкиной О.М. М.: Видокс; 2019. [Alekseyenko S.A., Bagdasaryan A.A., Bakulin I.G. et al. Brief algorithms for managing patients at the stage of providing primary health care. Handbook for physicians-therapists. Drapkinа O.M., ed. M.: Vidoks; 2019 (in Russ.)].
8. Teng C., Reveles K.R., Obodozie-Ofoegbu O.O., Frei C.R. Clostridium difficile Infection Risk with Important Antibiotic Classes: An Analysis of the FDA Adverse Event Reporting System. Int J Med Sci. 2019;16(5):630–635. DOI: 10.7150/ijms.30739.
9. Madoff R.D., Williams J.G., Caushaj P.F. Fecal incontinence. N Engl J Med. 1992;326(15):1002–1007. DOI: 10.1056/NEJM199204093261507.
10. Binder H.J. Causes of chronic diarrhea. N Engl J Med. 2006;355(3):236–239. DOI: 10.1056/NEJMp068124.
11. Lomer M.C. Review article: the aetiology, diagnosis, mechanisms and clinical evidence for food intolerance. Aliment Pharmacol Ther. 2015;41(3):262–275. DOI: 10.1111/apt.13041.
12. Гаус О.В., Ливзан М.А., Попелло Д.В. Управление питанием при синдроме раздраженного кишечника. Экспериментальная и клиническая гастроэнтерология. 2020;182(10):112–122. DOI: 10.31146/1682-8658-ecg-182-10-112-122. [Gaus O.V., Livzan M.A., Popello D.V. Power management for irritable bowel syndrome. Experimental and Clinical Gastroenterology. 2020;182(10):112–122 (in Russ.)]. DOI: 10.31146/1682-8658-ecg-182-10-112-122.
13. Chassany O., Michaux A., Bergmann J.F. Drug-induced diarrhoea. Drug Saf. 2000;22(1):53–72. DOI: 10.2165/00002018-200022010-00005.
14. Foss M.T., Clement K.D. Metformin as a cause of late-onset chronic diarrhea. Pharmacotherapy. 2001;21(11):1422–1424. DOI: 10.1592/phco.21.17.1422.34430.
15. Rogler G., Singh A., Kavanaugh A., Rubin D.T. Extraintestinal Manifestations of Inflammatory Bowel Disease: Current Concepts, Treatment, and Implications for Disease Management. Gastroenterology. 2021;161(4):1118–1132. DOI: 10.1053/j.gastro.2021.07.042.
16. Nguyen C.N., Kim S.J. Dermatitis Herpetiformis: An Update on Diagnosis, Disease Monitoring, and Management. Medicina (Kaunas). 2021;57(8):843. DOI: 10.3390/medicina57080843.
17. De Leo S., Lee S.Y., Braverman L.E. Hyperthyroidism. Lancet. 2016;388(10047):906–918. DOI: 10.1016/S0140-6736(16)00278-6.
18. Shahriari A., Papan A.M., Nazari P. How can someone's entire skin change color? Clin Case Rep. 2019;7(12):25812582. DOI: 10.1002/ccr3.2505.
19. Haque A., Hughes M. Raynaud's phenomenon. Clin Med (Lond). 2020;20(6):580–587. DOI: 10.7861/clinmed.2020-0754.
20. Olson D.E., Rhee M.K., Herrick K. et al. Screening for diabetes and pre-diabetes with proposed A1C-based diagnostic criteria. Diabetes Care. 2010;33(10):2184–2189. DOI: 10.2337/dc10-0433.
21. Fine K.D., Seidel R.H., Do K. The prevalence, anatomic distribution, and diagnosis of colonic causes of chronic diarrhea. Gastrointest Endosc. 2000;51(3):318–326. DOI: 10.1016/s0016-5107(00)70362-2.
22. Shah R.J., Fenoglio-Preiser C., Bleau B.L., Giannella R.A. Usefulness of colonoscopy with biopsy in the evaluation of patients with chronic diarrhea. Am J Gastroenterol. 2001;96(4):1091–1095. DOI: 10.1111/j.1572-0241.2001.03745.x.
23. Burgers K., Lindberg B., Bevis Z.J. Chronic Diarrhea in Adults: Evaluation and Differential Diagnosis. Am Fam Physician. 2020;101(8):472–480.
24. Al-Toma A., Volta U., Auricchio R. et al. European Society for the Study of Coeliac Disease (ESsCD) guideline for coeliac disease and other gluten-related disorders. United European Gastroenterol J. 2019;7(5):583–613. DOI: 10.1177/2050640619844125.
25. Парфенов А.И., Быкова С.В., Сабельникова Е.А. Всероссийский консенсус по диагностике и лечению целиакии у детей и взрослых. Терапевтический архив. 2017;89(3):94–107. DOI: 10.17116/terarkh201789394-107. [Parfenov A.I., Bykova S.V., Sabel'nikova E.A. All-Russian Consensus on Diagnosis and Treatment of Celiac Disease in Children and Adults. Terapevticheskii Arkhiv. 2017;89(3):94–107 (in Russ.)]. DOI: 10.17116/terarkh201789394-107.
26. Abu-Zidan F.M., Sheek-Hussein M. Diagnosis of abdominal tuberculosis: lessons learned over 30 years: pectoral assay. World J Emerg Surg. 2019;14:33. DOI: 10.1186/s13017-019-0252-3.
27. Bellam B.L., Mandavdhare H.S., Sharma K. et al. Utility of tissue Xpert-Mtb/Rif for the diagnosis of intestinal tuberculosis in patients with ileocolonic ulcers. Ther Adv Infect Dis. 2019;6:2049936119863939. DOI: 10.1177/2049936119863939.
28. Lowbridge C., Fadhil S.A.M., Krishnan G.D. et al. How can gastro-intestinal tuberculosis diagnosis be improved? A prospective cohort study. BMC Infect Dis. 2020;20(1):255. DOI: 10.1186/s12879-020-04983-y.
29. Shi X.C., Zhang L.F., Zhang Y.Q. et al. Clinical and Laboratory Diagnosis of Intestinal Tuberculosis. Chin Med J (Engl). 2016;129(11):1330–1333. DOI: 10.4103/0366-6999.182840.
30. Mehta V., Desai D., Abraham P., Rodrigues C. Making a Positive Diagnosis of Intestinal Tuberculosis with the Aid of New Biologic and Histologic Features: How Far Have We Reached? Inflamm Intest Dis. 2019;3(4):155–160. DOI: 10.1159/000496482.
31. Gan H., Mely M., Zhao J., Zhu L. An analysis of the clinical, endoscopic, and pathologic features of intestinal tuberculosis. J Clin Gastroenterol. 2016;50(6):470–475. DOI: 10.1097/MCG.0000000000000514.
32. Patel B., Yagnik V. Clinical and laboratory features of intestinal tuberculosis. J Clin Exp Gastroenterol. 2018;11(1):97–103. DOI: 10.2147/CEG.S154235.
33. Brandt L.J., Feuerstadt P., Longstreth G.F., Boley S.J.; American College of Gastroenterology. ACG clinical guideline: epidemiology, risk factors, patterns of presentation, diagnosis, and management of colon ischemia (CI). Am J Gastroenterol. 2015;110(1):18–45. DOI: 10.1038/ajg.2014.395.
34. Doulberis M., Panagopoulos P., Scherz S. et al. Update on ischemic colitis: from etiopathology to treatment including patients of intensive care unit. Scand J Gastroenterol. 2016;51(8):893–902. DOI: 10.3109/00365521.2016.1162325.
35. Chang L., Kahler K.H., Sarawate C. et al. Assessment of potential risk factors associated with ischaemic colitis. Neurogastroenterol Motil. 2008;20(1):36–42. DOI: 10.1111/j.1365-2982.2007.01015.x.
36. Brandt L.J., Feuerstadt P., Blaszka M.C. Anatomic patterns, patient characteristics, and clinical outcomes in ischemic colitis: a study of 313 cases supported by histology. Am J Gastroenterol. 2010;105(10):2245–2253. DOI: 10.1038/ajg.2010.217.
37. Montoro M.A., Brandt L.J., Santolaria S. et al. Clinical patterns and outcomes of ischaemic colitis: results of the Working Group for the Study of Ischaemic Colitis in Spain (CIE study). Scand J Gastroenterol. 2011;46(2):236–246. DOI: 10.3109/00365521.2010.525794.
38. Azam B., Kumar M., Mishra K., Dhibar D.P. Ischemic Colitis. J Emerg Med. 2019;56(5):e85–e86. DOI: 10.1016/j.jemermed.2019.01.016.
39. Brandt L.J., Feuerstadt P. Beyond Low Flow: How I Manage Ischemic Colitis. Am J Gastroenterol. 2016;111(12):1672–1674. DOI: 10.1038/ajg.2016.456.
40. Taourel P., Aufort S., Merigeaud S. et al. Imaging of ischemic colitis. Radiol Clin North Am. 2008;46(5):909–924, vi. DOI: 10.1016/j.rcl.2008.06.003.
41. Danakas A.M., Fazili B.G., Huber A.R. Mass-Forming Ischemic Colitis: A Potential Mimicker of Malignancy. Case Rep Pathol. 2019;2019:8927872. DOI: 10.1155/2019/8927872.
42. Khor T.S., Lauwers G.Y., Odze R.D., Srivastava A. "Mass-forming" variant of ischemic colitis is a distinct entity with predilection for the proximal colon. Am J Surg Pathol. 2015;39(9):1275–1281. DOI: 10.1097/PAS.0000000000000438.
43. Fenster M., Feuerstadt P., Brandt L.J. et al. Real-world multicentre experience of the pathological features of colonic ischaemia and their relationship to symptom duration, disease distribution and clinical outcome. Colorectal Dis. 2018;20(12):1132–1141. DOI: 10.1111/codi.14323.
44. Zou X., Cao J., Yao Y. et al. Endoscopic findings and clinicopathologic characteristics of ischemic colitis: a report of 85 cases. Dig Dis Sci. 2009;54(9):2009–2015. DOI: 10.1007/s10620-008-0579-1.
45. Lefevre J.H., Amiot A., Joly F. et al. Risk of recurrence after surgery for chronic radiation enteritis. Br J Surg. 2011;98(12):1792–1797. DOI: 10.1002/bjs.7655.
46. Chen S.W., Liang J.A., Yang S.N. et al. Radiation injury to intestine following hysterectomy and adjuvant radiotherapy for cervical cancer. Gynecol Oncol. 2004;95(1):208–214. DOI: 10.1016/j.ygyno.2004.07.003.
47. Kennedy G.D., Heise C.P. Radiation colitis and proctitis. Clin Colon Rectal Surg. 2007;20(1):64–72. DOI: 10.1055/s-2007-970202.
48. Ashburn J.H., Kalady M.F. Radiation-Induced Problems in Colorectal Surgery. Clin Colon Rectal Surg. 2016;29(2):85–91. DOI: 10.1055/s-0036-1580632.
49. Miehlke S., Guagnozzi D., Zabana Y. et al. European guidelines on microscopic colitis: United European Gastroenterology and European Microscopic Colitis Group statements and recommendations. United European Gastroenterol J. 2021;9(1):13–37. DOI: 10.1177/2050640620951905.
50. Bergman D., Clements M.S., Khalili H. A nationwide cohort study of the incidence of microscopic colitis in Sweden. Aliment Pharmacol Ther. 2019;49(11):1395–1400. DOI: 10.1111/apt.15246.
51. Bonderup O.K., Wigh T., Nielsen G.L. et al. The epidemiology of microscopic colitis: a 10-year pathology-based nationwide Danish cohort study. Scand J Gastroenterol. 2015;50(4):393–398. DOI: 10.3109/00365521.2014.940378.
52. Verhaegh B.P., Jonkers D.M., Driessen A. et al. Incidence of microscopic colitis in the Netherlands. A nationwide population-based study from 2000 to 2012. Dig Liver Dis. 2015;47(1):30–36. DOI: 10.1016/j.dld.2014.09.019.
53. Langner C., Aust D., Ensari A. et al. Histology of microscopic colitis-review with a practical approach for pathologists. Histopathology. 2015;66(5):613–626. DOI: 10.1111/his.12592.
54. Pardi D.S. Diagnosis and Management of Microscopic Colitis. Am J Gastroenterol. 2017;112(1):78–85. DOI: 10.1038/ajg.2016.477.
55. Münch A., Langner C. Microscopic colitis: clinical and pathologic perspectives. Clin Gastroenterol Hepatol. 2015;13(2):228–236. DOI: 10.1016/j.cgh.2013.12.026.
56. Tanaka M., Mazzoleni G., Riddell R.H. Distribution of collagenous colitis: utility of flexible sigmoidoscopy. Gut. 1992;33(1):65–70. DOI: 10.1136/gut.33.1.65.
57. Santos C., Morgado F., Blanco C. et al. Ascites in a Young Woman: A Rare Presentation of Eosinophilic Gastroenteritis. Case Rep Gastrointest Med. 2018;2018:1586915. DOI: 10.1155/2018/1586915.
58. Walker M.M., Potter M., Talley N.J. Eosinophilic gastroenteritis and other eosinophilic gut diseases distal to the oesophagus. Lancet Gastroenterol Hepatol. 2018;3(4):271–280. DOI: 10.1016/S2468-1253(18)30005-0.
59. Imaeda H., Yamaoka M., Ohgo H. et al. Eosinophil infiltration in the upper gastrointestinal tract of patients with bronchial asthma. Allergol Int. 2016;65 Suppl:S6–S10. DOI: 10.1016/j.alit.2016.03.008.
60. Gonsalves N. Eosinophilic Gastrointestinal Disorders. Clin Rev Allergy Immunol. 2019;57(2):272–285. DOI: 10.1007/s12016-019-08732-1.
61. Koutri E., Papadopoulou A. Eosinophilic Gastrointestinal Diseases in Childhood. Ann Nutr Metab. 2018;73 Suppl 4:18–28. DOI: 10.1159/000493668.
62. Kelly K.J. Eosinophilic gastroenteritis. J Pediatr Gastroenterol Nutr. 2000;30 Suppl:S28–S35. DOI: 10.1097/00005176-200001001-00005.
63. Kodan P., Shetty M.A., Pavan M.R. et al. Acute eosinophilic ascites: an unusual form of an unusual case. Trop Doct. 2015;45(1):39–41. DOI: 10.1177/0049475514553829.
64. Siddique S.M., Gilotra N.A. Crystal clear: a unique clue to diagnosis in a patient with recurrent nausea and vomiting. Gastroenterology. 2014;147(2):e1–e2. DOI: 10.1053/j.gastro.2014.02.043.
65. Furuta G.T., Atkins F.D., Lee N.A., Lee J.J. Changing roles of eosinophils in health and disease. Ann Allergy Asthma Immunol. 2014;113(1):3–8. DOI: 10.1016/j.anai.2014.04.002.
66. Collins M.H. Histopathologic features of eosinophilic esophagitis and eosinophilic gastrointestinal diseases. Gastroenterol Clin North Am. 2014;43(2):257–268. DOI: 10.1016/j.gtc.2014.02.007.
67. Shimamoto Y., Harima Y.A. Case of Eosinophilic Gastroenteritis Forming a Rigid Chamber Mimicking Giant Duodenal Ulcer on Computed Tomo-graphy Imaging. Am J Case Rep. 2016;17:259–263. DOI: 10.12659/ajcr.897403.
68. Lagier J.C., Lepidi H., Raoult D., Fenollar F. Systemic Tropheryma whipplei: clinical presentation of 142 patients with infections diagnosed or confirmed in a reference center. Medicine (Baltimore). 2010;89(5):337–345. DOI: 10.1097/MD.0b013e3181f204a8.
69. Marth T., Raoult D. Whipple's disease. Lancet. 2003;361(9353):239–246. DOI: 10.1016/S0140-6736(03)12274-X.
70. Martinetti M., Biagi F., Badulli C. et al. The HLA alleles DRB1*13 and DQB1*06 are associated to Whipple's disease. Gastroenterology. 2009;136(7):2289–2294. DOI: 10.1053/j.gastro.2009.01.051.
71. Biagi F., Trotta L., Corazza G.R. Whipple's disease. Intern Emerg Med. 2012;7 Suppl 3:S209–S213. DOI: 10.1007/s11739-012-0801-1.
72. Mönkemüller K., Fry L.C., von Arnim U. et al. Whipple's disease: an endoscopic and histologic study. Digestion. 2008;77(3-4):161–165. DOI: 10.1159/000140978.
73. Neumann H., Mönkemüller K., Neurath M.F., Vieth M. Advanced endoscopic imaging using narrow-band imaging for diagnosis of Whipple's di-sease. Endoscopy. 2012;44 Suppl 2 UCTN:E101. DOI: 10.1055/s-0030-1256784.
74. Olmos M., Smecuol E., Mauriño E., Bai J.C. Decision analysis: an aid to the diagnosis of Whipple's disease. Aliment Pharmacol Ther. 2006;23(6):833–840. DOI: 10.1111/j.1365-2036.2006.02822.x.
75. Baisden B.L., Lepidi H., Raoult D. et al. Diagnosis of Wihipple disease by immunohistochemical analysis: a sensitive and specific method for the detection of Tropheryma whipplei (the Whipple bacillus) in paraffin-embedded tissue. Am J Clin Pathol. 2002;118(5):742–748. DOI: 10.1309/8YGR-FE7L-39LL-L37C.

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