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Superdosagem de digoxina

Última revisão: 17 Aug 2025
Última atualização: 16 Apr 2024

Resumo

Definição

Anamnesis y examen

Principales factores de diagnóstico

  • presença de fatores de risco
  • exposição à digoxina
  • sintomas gastrointestinais
  • sintomas do sistema nervoso central
  • sintomas visuais
Todos los datos

Otros factores de diagnóstico

  • probabilidade de suicídio
  • sintomas cardiovasculares
Todos los datos

Factores de riesgo

  • idade >55 anos
  • clearance renal diminuído
  • hipercalemia (>5.0 milimoles/L)
  • hipocalemia (<3.0 a 3.5 milimoles/L)
  • uso concomitante de medicamentos específicos
  • hipomagnesemia
  • hipercalcemia
  • hipotireoidismo
Todos los datos

Pruebas diagnósticas

Primeras pruebas diagnósticas para solicitar

  • eletrocardiograma (ECG)
  • concentração sérica de digoxina
  • nível de potássio sérico
  • nível de magnésio sérico
  • creatinina sérica e ureia
Todos los datos

Algoritmo de tratamiento

Agudo

ingestão aguda, toxicidade baixa a moderada

ingestão crônica, toxicidade baixa a moderada

toxicidade grave ou comprometimento hemodinâmico (toxicidade aguda ou crônica)

En curso

toxicidade aguda ou crônica após início do tratamento

Colaboradores

Autores

Scott Phillips, MD

Associate Clinical Professor of Medicine

Department of Clinical Pharmacology and Toxicology

University of Colorado

Denver

CO

Associate Medical Director

Washington Poison Center

Seattle

WA

Divulgaciones

SP declares that he has no competing interests.

Agradecimientos

Dr Scott Phillips would like to gratefully acknowledge Dr Oladapo A. Odujube and Dr Robert S. Hoffman, previous contributors to this topic.

Divulgaciones

OAO and RSH declare that they have no competing interests.

Revisores por pares

Edward W. Boyer, MD

University of Massachusetts Medical School

Worcester

MA

Divulgaciones

EWB declares that he has no competing interests.

Ruben Thanacoody, MD, FRCP(Edin)

Consultant Physician and Clinical Toxicologist

National Poisons Information Service (Newcastle)

Newcastle-upon-Tyne

UK

Divulgaciones

RT declares that he has no competing interests.

Peer reviewer acknowledgements

BMJ Best Practice topics are updated on a rolling basis in line with developments in evidence and guidance. The peer reviewers listed here have reviewed the content at least once during the history of the topic.

Disclosures

Peer reviewer affiliations and disclosures pertain to the time of the review.

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

Gheorghiade M, van Veldhuisen DJ, Colucci WS. Contemporary use of digoxin in the management of cardiovascular disorders. Circulation. 2006 May 30;113(21):2556-64. Resumen

Smith TW, Haber E, Yeatman L, et al. Reversal of advanced digoxin intoxication with Fab fragments of digoxin-specific antibodies. N Engl J Med. 1976 Apr 8;294(15):797-800. Resumen

Smith TW, Butler VP Jr, Haber E, et al. Treatment of life-threatening digitalis intoxication with digoxin-specific Fab antibody fragments: experience in 26 cases. N Engl J Med. 1982 Nov 25;307(22):1357-62. Resumen

Bismuth C, Gaultier M, Conso F, et al. Hyperkalemia in acute digitalis poisoning: prognostic significance and therapeutic implications. Clin Toxicol. 1973;6(2):153-62. Resumen

Taboulet P, Baud FJ, Bismuth C, et al. Acute digitalis intoxication--is pacing still appropriate? J Toxicol Clin Toxicol. 1993;31(2):261-73. 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.
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