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Does atrial fibrillation affect plasma endothelin level?

Beata Wozakowska-Kapłon1, Radosław Bartkowiak, Grazyna Janiszewska

  • 11st Clinical Department of Cardiology, Swietokrzyskie Centre of Cardiology, Kielce, Poland. bw.kaplon@poczta.onet.pl

Cardiology Journal
|September 25, 2010
PubMed

Insights

Persistent atrial fibrillation (AF) does not alter endothelin-1 (ET-1) levels in patients without heart failure. Cardioversion also showed no significant impact on ET-1 concentrations.

Area of Science:

  • Cardiology
  • Vascular Biology
  • Biochemistry

Background:

  • Atrial fibrillation (AF) is linked to endothelial dysfunction.
  • Endothelin-1 (ET-1) is a key mediator of vascular tone and function.
  • Investigating ET-1 in AF may reveal insights into cardiovascular pathophysiology.

Purpose of the Study:

  • To measure plasma ET-1 concentrations in persistent AF patients.
  • To assess ET-1 levels after restoring sinus rhythm via cardioversion.
  • To determine if ET-1 predicts rhythm maintenance post-cardioversion.

Main Methods:

  • Study included 43 patients with persistent AF and normal left ventricular systolic function.
  • Blood samples collected 24 hours before and 24 hours after cardioversion.
  • Sinus rhythm maintenance assessed at 30 days post-cardioversion.

Main Results:

  • No significant difference in ET-1 levels between AF patients and controls.
  • Plasma ET-1 levels remained unchanged 24 hours post-cardioversion.
  • No correlation found between baseline ET-1 and 30-day rhythm maintenance.

Conclusions:

  • Persistent AF does not alter plasma ET-1 in patients with preserved LV function and no heart failure symptoms.
  • Cardioversion does not significantly change plasma ET-1 levels within 24 hours.
  • ET-1 is not a significant predictor of rhythm maintenance in this patient cohort.
Abstract

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