Document Detail

Restoring sinus rhythm in patients with previous pacemaker implantation submitted to cardiac surgery and concomitant surgical ablation of atrial fibrillation.
MedLine Citation:
PMID:  18282759     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: Some patients submitted to cardiac surgery have concomitant atrial fibrillation and a previously implanted pacemaker. Because it is unknown if there is any potential for these patients to reassume a regular rate sinus rhythm after ablation of atrial fibrillation, we reviewed the results of all patients with pacemaker enrolled in the Registry of Atrial Fibrillation. MATERIALS: Thirty-six patients were included in this study. Twenty-six had valve disease, seven had coronary disease and three had congenital heart disease. They were submitted concomitantly to ablation of atrial fibrillation using biatrial approaches (seven patients), left sided (27), or right sided (three patients). Thirty-three hospital survivors had a mean follow-up of 18 months, and a maximum of 25 months. RESULTS: At 1 year (n=21), patients' rhythm was sinus non-pacing dependent (52%), sinus pacing-dependent (14%), and atrial fibrillation (14%). At 2 years (n=14), patients' rhythm was sinus non-pacing dependent (57%) and atrial fibrillation (43%). The only factor that may have had impact on the recovery of sinus rhythm at 1 year was the small size of the left atrium (p=0.05). CONCLUSIONS: We conclude that in a significant number of patients, having a pacemaker before surgery does not preclude sinus rhythm recovery after a cardiac operation and ablation for concomitant atrial fibrillation.
Marta P Marques; João Q Melo; Michel Knaut; Ottavio Alfieri; Stefano Benussi; Mathew R Williams; Fernando Hornero
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Publication Detail:
Type:  Evaluation Studies; Journal Article     Date:  2008-02-20
Journal Detail:
Title:  European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery     Volume:  33     ISSN:  1010-7940     ISO Abbreviation:  Eur J Cardiothorac Surg     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-03-17     Completed Date:  2008-08-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804069     Medline TA:  Eur J Cardiothorac Surg     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  596-9     Citation Subset:  IM    
Santa Cruz Hospital, Carnaxide, Portugal.
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MeSH Terms
Arrhythmia, Sinus / physiopathology,  surgery*
Atrial Fibrillation / physiopathology,  surgery*
Cardiac Pacing, Artificial*
Catheter Ablation / methods*
Heart Atria / physiopathology,  surgery
Heart Rate / physiology
Treatment Outcome

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

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