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Diarreia do viajante

Evidencia revisada por última vez: 12 Feb 2026
Tema actualizado por última vez: 03 Sep 2024

Resumen

Definición

Anamnesis y examen

Principales factores de diagnóstico

  • presença de fatores de risco
  • diarreia (com ou sem tenesmo), cólicas, náuseas e vômitos
  • disenteria (sangue e febre)
  • diarreia persistente por >14 dias
Todos los datos

Otros factores de diagnóstico

  • diarreia sem doença
Todos los datos

Factores de riesgo

  • viagem para um destino de alto risco
  • idade <30 anos
  • uso de inibidor da bomba de prótons
  • viajantes com residência prévia em um local de alto risco visitando amigos e parentes
  • viagem durante estações quentes e úmidas
  • populações de militares destacados
  • falta de cautela na seleção de alimentos e água
Todos los datos

Pruebas diagnósticas

Primeras pruebas diagnósticas para solicitar

  • coprocultura e sensibilidade
  • diagnóstico molecular de vários patógenos (reação em cadeia da polimerase)
  • antígenos de fezes para protozoários
Todos los datos

Pruebas diagnósticas que deben considerarse

  • exame de ovos e parasitas nas fezes
  • Toxina do Clostridioides difficile nas fezes
  • colonoscopia, endoscopia e biópsia
  • hematologia, química sanguínea, sorologia
Todos los datos

Algoritmo de tratamiento

Inicial

profilaxia antes da viagem

Agudo

adultos não gestantes: diarreia leve

adultas não gestantes: diarreia moderada

adultos não gestantes: diarreia grave

gestante

crianças

Colaboradores

Autores

Daniel T. Leung, MD, MSc

Associate Professor

Division of Infectious Diseases

University of Utah School of Medicine

Salt Lake City

UT

Divulgaciones

DTL receives authorship royalties from UpToDate, Inc, for a chapter on travel medicine. DTL is an author of upcoming chapters on traveller's diarrhoea for the US CDC Yellow Book. DTL is the president-elect of the American Committee on Clinical Tropical Medicine and Travelers' Health - Clinical Group within the American Society of Tropical Medicine and Hygiene. DTL is an author of some of the references cited in this topic.

Jakrapun Pupaibool, MD, MS

Associate Professor

Division of Infectious Diseases

University of Utah School of Medicine

Salt Lake City

UT

Divulgaciones

JP declares that he has no competing interests.

Agradecimientos

Dr Daniel T. Leung and Dr Jakrapun Pupaibool would like to gratefully acknowledge Dr Mark Riddle and Professor Gregory Juckett, the previous contributor to this topic.

Divulgaciones

MR has given talks on the management of traveller's diarrhoea for the International Society of Travel Medicine (ISTM), the CDC Foundation, the American College of Gastroenterology (ACG), and the American College of Preventive Medicine. MR has led the development of guidelines for traveller's diarrhea for the ISTM, the ACG, and the Department of Defense. This work has been unpaid but support for travel has been accepted. MR is employed with Pfizer Inc., and is working on their Lyme disease vaccine programme. While this is not in conflict with traveller’s diarrhoea, Pfizer also makes azithromycin, which is an antibiotic recommended for the treatment of traveller’s diarrhoea. MR does not work in the area of Pfizer that develops, markets, or distributes azithromycin. MR is an author of several references cited in this topic. GJ declares that he has no competing interests.

Revisores por pares

Andrea Summer, MD

Assistant Professor of Pediatrics

Medical University of South Carolina

Charleston

SC

Divulgaciones

AS declares that she has no competing interests.

Phil Fischer, MD

Professor of Pediatrics

Department of Pediatric and Adolescent Medicine

Mayo Clinic

Rochester

MN

Divulgaciones

PF is an author of a reference cited in this topic.

Agradecimiento de los revisores por pares

Los temas de BMJ Best Practice se actualizan de forma continua de acuerdo con los desarrollos en la evidencia y en las guías. Los revisores por pares listados aquí han revisado el contenido al menos una vez durante la historia del tema.

Divulgaciones

Las afiliaciones y divulgaciones de los revisores por pares se refieren al momento de la revisión.

Referencias

Nuestros equipos internos de evidencia y editoriales colaboran con colaboradores expertos internacionales y revisores pares para garantizar que brindemos acceso a la información más clínicamente relevante posible.

Artículos principales

Riddle MS, Connor BA, Beeching NJ, et al. Guidelines for the prevention and treatment of travelers' diarrhea: a graded expert panel report. J Travel Med. 2017 Apr 1;24(suppl 1):S57-74.Texto completo  Resumen

Centers for Disease Control and Prevention. CDC Yellow Book 2024: health information for international travel. Section 2: preparing international travelers - travelers’ diarrhea. May 2023 [internet publication].Texto completo

De Bruyn G, Hahn S, Borwick A. Antibiotic treatment for travellers' diarrhoea. Cochrane Database Syst Rev. 2000;(3):CD002242.Texto completo  Resumen

Johnson PC, Ericsson CD, DuPont HL, et al. Comparison of loperamide with bismuth subsalicylate for the treatment of acute travelers' diarrhea. JAMA. 1986 Feb 14;255(6):757-60. Resumen

Artículos de referencia

Una lista completa de las fuentes a las que se hace referencia en este tema está disponible para los usuarios con acceso a todo BMJ Best Practice.
  • Diferenciales

    • Intoxicação alimentar
    • Síndrome do intestino irritável
    • deficiência secundária de dissacaridase (ou outra deficiência alimentar)
    Más Diferenciales
  • Guías de práctica clínica

    • CDC Yellow Book 2024: travelers' diarrhea
    • 2017 Infectious Diseases Society of America clinical practice guidelines for the diagnosis and management of infectious diarrhea
    Más Guías de práctica clínica
  • Folletos para el paciente

    Diarreia em adultos

    Más Folletos para el paciente
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