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Taquicardia atrial focal

Last reviewed: 15 Jan 2026
Last updated: 04 Jun 2024

Summary

Definition

History and exam

Key diagnostic factors

  • presença de fatores de risco
  • doença cardíaca
Full details

Other diagnostic factors

  • medicações
  • palpitações
  • fadiga, fraqueza
  • dor torácica
  • dispneia, tosse
  • náuseas e vômitos
  • tontura, síncope
  • estertores
  • edema
Full details

Risk factors

  • uso indevido de substâncias (ingestão/abstinência de bebidas alcoólicas, cocaína, anfetaminas)
  • toxicidade por digoxina
  • cirurgia cardíaca prévia para corrigir os defeitos cardíacos congênitos
  • doença arterial coronariana
  • exacerbação da doença pulmonar crônica
  • teofilina
Full details

Diagnostic investigations

1st investigations to order

  • eletrocardiograma (ECG)
  • nível de digoxina
  • nível de teofilina
  • radiografia torácica
  • eletrólitos
  • análise toxicológica
Full details

Investigations to consider

  • manobras vagais, adenosina
  • hormônios estimulantes da tireoide
  • ecocardiograma
  • ECG ambulatorial de 24 horas (Holter) ou registro de eventos
  • estudo eletrofisiológico (EF)
Full details

Treatment algorithm

INITIAL

adultos: taquicardia supraventricular indiferenciada

ACUTE

adultos: taquicardia atrial focal; não há suspeita de excesso de digoxina

adultos: taquicardia atrial focal; suspeita de toxicidade por digoxina

criança

ONGOING

adultos: taquicardia atrial focal sustentada ou recorrente

Contributors

Authors

Danesh Kella, MBBS, FHRS

Assistant Professor

Department of Cardiovascular Diseases

Division of Heart Rhythm

Mayo Clinic

Jacksonville

FL

Disclosures

DK receives honoraria from Zoll Medical.

Acknowledgements

Dr Danesh Kella would like to gratefully acknowledge Dr Sarah Stahmer, previous contributor to this topic.

Peer reviewers

Kathryn L. Berlacher, MD, MS

Assistant Professor and Cardiology Fellowship Program Director

University of Pittsburgh Medical Center

Pittsburgh

PA

Disclosures

KLB declares that she has no competing interests.

Mehak Dhande, MD

Clinical Cardiac Electrophysiology Fellow

University of Pittsburgh Medical Center

Pittsburgh

PA

Disclosures

MD declares that she has no competing interests.

Amal Mattu, MD

Associate Professor of Emergency Medicine

University of Maryland Medical Center

Baltimore

MD

Disclosures

AM declares that he has no competing interests.

Vias Markides, MB(Hons), BS(Hons), MD, FRCP

Consultant Cardiologist

Royal Brompton & Harefield NHS Trust

Imperial College London

London

UK

Disclosures

VM 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.

References

Our in-house evidence and editorial teams collaborate with international expert contributors and peer reviewers to ensure that we provide access to the most clinically relevant information possible.

Key articles

Page RL, Joglar JA, Caldwell MA, et al. 2015 ACC/AHA/HRS guideline for the management of adult patients with supraventricular tachycardia: a report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society. J Am Coll Cardiol. 2016 Apr 5;67(13):e27-e115.Full text  Abstract

Brugada J, Katritsis DG, Arbelo E, et al. 2019 ESC guidelines for the management of patients with supraventricular tachycardia. The Task Force for the management of patients with supraventricular tachycardia of the European Society of Cardiology (ESC). Eur Heart J. 2020 Feb 1;41(5):655-720.Full text  Abstract

Reference articles

A full list of sources referenced in this topic is available to users with access to all of BMJ Best Practice.

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