Document Detail


Incidence of sudden death after radiofrequency ablation of the atrioventricular junction for atrial fibrillation.
MedLine Citation:
PMID:  9359545     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study assesses the incidence of sudden death and classifies the causes of death following radiofrequency ablation of the atrioventricular (AV) junction. We studied 220 patients with paroxysmal (n = 105) or chronic (n = 115) atrial fibrillation (AF) and a mean age of 64 +/- 12 years. These patients were followed 31 +/- 15 months after radiofrequency ablation of the AV junction and pacemaker implantation. In 86 patients, structural heart disease was identified before the procedure. All patients were traced via the Swedish National Civic Registry and Cause of Death Registry. The cause-of-death was classified according to data from death certificates, autopsy protocols, and medical records. Thirty-one patients (mean age 69 +/- 11 years, 16 men) died 15 +/- 15 months (range 0.2 to 60) after the procedure. There were 6 sudden unexplained deaths, 14 cardiovascular deaths, and 11 deaths from noncardiovascular causes. Eleven patients, all with structural heart disease, died suddenly out of hospital 16 +/- 16 months (range 0.2 to 42) after the procedure. In 6 of these there was no obvious cause of death. Three of these 6 patients underwent autopsy, which showed extensive coronary artery disease (n = 1), severe heart failure (n = 1) and cardiac hypertrophy and dilation (n = 1). The remaining 3 all had depressed left ventricular systolic function and a history of congestive heart failure. Five of the patients who died suddenly from cardiovascular causes had autopsies that revealed acute myocardial infarction (n = 4) and massive pulmonary embolism (n = 1).
Authors:
B Darpö; H Walfridsson; M Aunes; L Bergfeldt; N Edvardsson; C Linde; L Lurje; M van der Linden; M Rosenqvist
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The American journal of cardiology     Volume:  80     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  1997 Nov 
Date Detail:
Created Date:  1997-11-28     Completed Date:  1997-11-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1174-7     Citation Subset:  AIM; IM    
Affiliation:
Department of Cardiology, Karolinska Hospital, Stockholm, Sweden.
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MeSH Terms
Descriptor/Qualifier:
Aged
Atrial Fibrillation / surgery*
Atrioventricular Node / surgery*
Catheter Ablation*
Cause of Death
Death, Sudden / epidemiology*,  etiology
Death, Sudden, Cardiac / epidemiology*
Female
Follow-Up Studies
Heart Diseases / mortality
Humans
Incidence
Male
Middle Aged
Pacemaker, Artificial
Registries
Retrospective Studies
Risk Factors
Sweden / epidemiology
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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