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Tropical malabsorption.

B S Ramakrishna1, S Venkataraman, A Mukhopadhya

  • 1Department of Gastrointestinal Sciences, Christian Medical College, Vellore, Tamil Nadu, India. rama@cmcvellore.ac.in

Postgraduate Medical Journal
|December 7, 2006
PubMed
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Tropical malabsorption is often caused by infections, but inflammatory and immunological conditions are increasingly recognized. Investigating specific causes is crucial before diagnosing tropical sprue.

Area of Science:

  • Gastroenterology
  • Tropical Medicine
  • Infectious Diseases

Background:

  • Malabsorption presents a significant clinical challenge in tropical regions, affecting both travelers and residents.
  • Small intestinal infections are the primary drivers of tropical malabsorption, with protozoal and helminthic infections being notable.
  • Other significant contributors include intestinal tuberculosis, chronic pancreatitis, bacterial overgrowth, inflammatory bowel disease, and celiac disease.

Purpose of the Study:

  • To review the management of tropical sprue.
  • To present an algorithm for the investigation and management of tropical malabsorption.

Main Methods:

  • Literature review on causes and management of tropical malabsorption.
  • Development of a diagnostic and management algorithm.

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Main Results:

  • Infections (protozoal, helminthic, tuberculosis) are key causes of malabsorption.
  • Non-infectious causes like inflammatory bowel disease, celiac disease, and bacterial overgrowth are increasingly prevalent.
  • Sporadic tropical sprue remains an important diagnosis, particularly in South Asia, but requires exclusion of other conditions.

Conclusions:

  • A thorough investigation to rule out specific infections, inflammatory, and immunological conditions is essential before diagnosing tropical sprue.
  • Effective management hinges on accurate diagnosis and tailored treatment strategies for various causes of tropical malabsorption.