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[Edema and the tropics].

B R Holzer1

  • 1Facharzt für Allgemeine Medizin FMH und Tropen- und Reisemedizin FMH, Mittlere Strasse 3, CH-3600 Thun. benedikt.holzer@bluewin.ch

Therapeutische Umschau. Revue Therapeutique
|December 21, 2004
PubMed
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Edema in tropical regions has diverse causes, including travel, infections, and pre-existing conditions. Accurate diagnosis requires a detailed travel history and specific medical investigations.

Area of Science:

  • Tropical medicine
  • Travel medicine
  • Dermatology

Background:

  • Edema is common in tropical and subtropical regions, affecting both short-term visitors and long-term residents.
  • Distinguishing between various causes of edema, such as fluid retention, lymphedema, and other etiologies, can be challenging.

Observation:

  • Travelers may experience edema due to deep venous thrombosis from long flights, exposure to toxins or parasites, or high-altitude conditions.
  • Chronic lymphedema, or elephantiasis, can result from filarial worm blockage, distinct from conditions like podoconiosis.
  • Drug side effects, nutritional deficiencies (rare in tourists), and sickle cell crises are other potential causes of swelling.

Findings:

  • A meticulous patient history, including travel itinerary and exposures, is crucial for diagnosis.

Related Experiment Videos

  • Eosinophilia and serological investigations aid in identifying parasitic or infectious causes.
  • Edema is not always related to travel; pre-existing conditions are common.

    • Implications:

    • Understanding the specific epidemiology and geographic distribution of diseases is essential for accurate diagnosis and management.
    • Travelers should be aware of potential health risks, including edema, associated with tropical and subtropical travel.
    • Further research into the differential diagnosis of edema in diverse populations is warranted.