Robert H J Bandsma1,2,3,4, Kamran Sadiq5, Zulfiqar A Bhutta3,4,5. 1. a Division of Gastroenterology, Hepatology and Nutrition , Hospital for Sick Children , Toronto , Canada. 2. b Translational Medicine Program, Hospital for Sick Children , Toronto , Canada. 3. c Centre for Global Child Health, Hospital for Sick Children , Toronto , Canada. 4. d Department of Nutrition Sciences , University of Toronto , Toronto , Canada. 5. e Department of Paediatrics and Child Health , Aga Khan University , Karachi , Pakistan.
Abstract
BACKGROUND: Persistent diarrhoea (PD), defined as diarrhoeal symptoms for longer than 2 weeks, still forms a substantial disease burden in children under 5 years of age. This article provides an overview of the current knowledge of PD and discusses novel concepts. METHODS: A literature search on PD was performed which focused on evidence on epidemiology, pathophysiology and management of the disease. RESULTS: The prevalence of PD has potentially decreased over the last decades. Debate remains around the role of specific bacterial, viral and parasitic infections with PD. PD is associated with malnutrition and a compromised immune system, including that caused by HIV infection. Management includes fluid resuscitation and improving nutritional status. There is a lack of evidence on the use of antibiotic therapy for PD. There is increasing interest in nutrient-based interventions, including pre- and/or probiotics that can modify the microbiome and thereby potentially prevent or improve the outcome of PD in children. CONCLUSION: As PD remains a significant health burden, multicentre clinical trials are needed to inform future treatment guidelines. ABBREVIATIONS: PD, persistent diarrhoea; EED, environmental enteric dysfunction; IBD, inflammatory bowel disease; WHO, World Health Organization.
BACKGROUND: Persistent diarrhoea (PD), defined as diarrhoeal symptoms for longer than 2 weeks, still forms a substantial disease burden in children under 5 years of age. This article provides an overview of the current knowledge of PD and discusses novel concepts. METHODS: A literature search on PD was performed which focused on evidence on epidemiology, pathophysiology and management of the disease. RESULTS: The prevalence of PD has potentially decreased over the last decades. Debate remains around the role of specific bacterial, viral and parasitic infections with PD. PD is associated with malnutrition and a compromised immune system, including that caused by HIV infection. Management includes fluid resuscitation and improving nutritional status. There is a lack of evidence on the use of antibiotic therapy for PD. There is increasing interest in nutrient-based interventions, including pre- and/or probiotics that can modify the microbiome and thereby potentially prevent or improve the outcome of PD in children. CONCLUSION: As PD remains a significant health burden, multicentre clinical trials are needed to inform future treatment guidelines. ABBREVIATIONS: PD, persistent diarrhoea; EED, environmental enteric dysfunction; IBD, inflammatory bowel disease; WHO, World Health Organization.
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