Document Detail

Factors predicting success in cryoablation of the pulmonary veins in patients with chronic atrial fibrillation.
MedLine Citation:
PMID:  15502379     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: This study was designed to investigate the factors predicting maintenance of sinus rhythm (SR) in patients with chronic atrial fibrillation (AF) undergoing cryoablation of the pulmonary veins (PV-cryo) during cardiac surgery. METHODS AND RESULTS: Seventy-seven patients with AF undergoing PV-cryo were recruited and divided into 2 groups based on whether they were able to maintain SR at discharge. The duration of AF (AF-D), left atrial dimension (LAd), and the average of the peak left atrial appendage outflow velocities (LAA-V) before surgery were determined for both groups. Group SR consisted of 54 patients (70%), and group AF consisted of 23 patients (30%). All patients with an AF-D <or=3 years, LAd <45 mm and LAA-V >40 cm/s were in group SR and all those with an AF-D >10 years and LAd >or=65 mm were in group AF. Only 71% of patients with a LAA-V <or=20 cm/s were in group AF. CONCLUSIONS: Restoration of AF to SR by PV-cryo can be predicted from a knowledge of the AF-D, LAd and LAA-V.
Naoki Isobe; Koichi Taniguchi; Shigeru Oshima; Hiroshi Kamiyama; Masahiko Ezure; Tatsuo Kaneko; Hiroshi Tada; Hitoshi Adachi; Takuji Toyama; Shigeto Naito; Hiroshi Hoshizaki
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Circulation journal : official journal of the Japanese Circulation Society     Volume:  68     ISSN:  1346-9843     ISO Abbreviation:  Circ. J.     Publication Date:  2004 Nov 
Date Detail:
Created Date:  2004-10-25     Completed Date:  2005-02-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137683     Medline TA:  Circ J     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  999-1003     Citation Subset:  IM    
Division of Cardiology, Gunma Prefectural Cardiovascular Center, 3-12 Kameizumi-tyo, Maebashi, Gunma 371-0004, Japan.
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MeSH Terms
Atrial Appendage / physiopathology,  ultrasonography
Atrial Fibrillation / physiopathology,  surgery*,  ultrasonography
Blood Flow Velocity
Chronic Disease
Coronary Artery Bypass / methods
Coronary Circulation
Heart Atria / ultrasonography
Heart Rate
Middle Aged
Predictive Value of Tests
Pulmonary Veins / surgery*
Treatment Outcome

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

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