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Estimating Bilateral Atrial Function by Cardiovascular Magnetic Resonance Feature Tracking in Patients with Paroxysmal Atrial Fibrillation
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[Significance of permanent atrial fibrillation in idiopathic dilated cardiomyopathy]

B Brembilla-Perrot1, O Marçon, F Chometon

  • 1Service de cardiologie, CHU de Brabois, rue du Morvan, 54500 Vandoeuvre-lès-Nancy, France. b.brembilla-perrot@chu-nancy.fr

Annales De Cardiologie Et D'Angeiologie
|June 19, 2007
PubMed

Insights

Older age is linked to permanent atrial fibrillation (AF) in idiopathic dilated cardiomyopathy (IDCM). Permanent AF does not worsen ventricular tachycardia risk or overall prognosis in IDCM patients.

Area of Science:

  • Cardiology
  • Electrophysiology

Context:

  • Idiopathic dilated cardiomyopathy (IDCM) is a significant cause of heart failure.
  • The role of atrial fibrillation (AF) in IDCM prognosis is not fully understood.
  • Understanding AF's impact is crucial for managing IDCM patients.

Purpose:

  • To investigate the clinical significance of permanent atrial fibrillation (AF) in patients with idiopathic dilated cardiomyopathy (IDCM).
  • To determine if permanent AF affects the risk of ventricular tachycardia or overall prognosis in IDCM.

Summary:

  • A study of 323 IDCM patients with left ventricular ejection fraction <40% compared those with permanent AF (n=65) to those in sinus rhythm.
  • Patients with permanent AF were older.
  • No significant differences were observed in syncope, sustained ventricular tachycardia, left ventricular ejection fraction, or VT induction between groups.
  • Follow-up revealed no statistical differences in sudden death, heart failure deaths, or heart transplantation rates.

Impact:

  • Older age is the sole clinical factor associated with permanent AF in IDCM.
  • Permanent AF does not appear to increase the risk of sustained ventricular tachycardia induction.
  • The presence of permanent AF does not negatively impact the general prognosis of idiopathic dilated cardiomyopathy.
Abstract

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