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Related Experiment Videos

[Internal cardioversion in chronic atrial fibrillation].

Celso Mendoza González1, Pedro Iturralde Torres, Milton E Guevara Valdivia

  • 1Departamento de Electrofisiología, Instituto Nacional de Cardiología Ignacio Chávez INCICH, Juan Badiano No. 1, Col. Sección XVI, Tlalpan, 14080 México, D. F.

Archivos De Cardiologia De Mexico
|August 1, 2002
PubMed
Summary

Internal cardioversion offers an effective treatment for chronic atrial fibrillation. This minimally invasive procedure uses low energy and light sedation to restore normal heart rhythm, providing a viable alternative for patients experiencing relapse.

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Area of Science:

  • Cardiology
  • Electrophysiology

Background:

  • Atrial fibrillation (AF) necessitates novel therapeutic strategies.
  • Internal cardioversion (IC) is an emerging treatment modality for AF.
  • Atrial defibrillators are being developed for IC procedures.

Observation:

  • A 68-year-old patient with 10-month chronic AF and no structural heart disease was treated.
  • Initial external cardioversion with antiarrhythmic drugs failed due to relapse within a week.
  • Internal cardioversion was performed using a coronary sinus electrocatheter (DAIG) via right jugular vein access.

Findings:

  • The procedure involved light sedation with propofol (2 mg/kg).
  • Three low-energy shocks (1, 3, and 5 joules) successfully converted the patient to sinus rhythm.

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  • No complications were observed during or after the internal cardioversion.

    • Implications:

    • Internal cardioversion demonstrates efficacy in treating chronic atrial fibrillation.
    • The technique utilizes light sedation and minimal energy levels.
    • This approach offers a safe and effective method for rhythm restoration in AF patients.