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  4. Effect of radiofrequency catheter ablation for atrial fibrillation on morbidity and mortality: A nationwide cohort study and propensity score analysis
 
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Effect of radiofrequency catheter ablation for atrial fibrillation on morbidity and mortality: A nationwide cohort study and propensity score analysis

Journal
Circulation: Arrhythmia and Electrophysiology
Journal Volume
7
Journal Issue
1
Pages
76-82
Date Issued
2014
Author(s)
CHIA-HSUIN CHANG  
JOU-WEI LIN  
Chiu F.-C.
Caffrey J.L.
Wu L.-C.
Lai M.-S.
DOI
10.1161/CIRCEP.113.000597
URI
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84898841704&doi=10.1161%2fCIRCEP.113.000597&partnerID=40&md5=4b47a27aeb74b17bceaec4eeae527ddc
https://scholars.lib.ntu.edu.tw/handle/123456789/517141
Abstract
Background-This study examined the effect of radiofrequency catheter ablation (RFA) on reducing morbidity and mortality among patients with atrial fibrillation (AF). Methods and Results-A retrospective cohort of patients with AF without prior stroke or heart failure (HF) who underwent RFA between 2003 and 2009 was identified using Taiwan's National Health Insurance claims database. Outpatients with AF who met the same enrollment criteria but did not receive RFA were matched (=1:20) by hospitals and dates to serve as controls. Outcomes of interest were death, stroke, or hospitalization for HF. A proportional hazard Cox regression model adjusted by propensity scores (based on age, sex, hypertension, diabetes mellitus, comorbidities, medications, and medical resource utilization) was applied to estimate the hazard ratio and 95% confidence interval. A total of 846 patients with AF who received RFA and 11 324 matched AF controls were included, with a mean follow-up of 3.74 and 3.96 years, respectively. RFA was associated with a lower hazard for stroke (hazard ratio, 0.57; 95% confidence interval, 0.35-0.94; P=0.026). The reduction in the hazard for death and HF did not reach statistical significance (hazard ratio, 0.88; 95% confidence interval, 0.62-1.23; P=0.451 and hazard ratio, 0.78; 95% confidence interval, 0.55-1.12; P=0.185, respectively). Additional analysis using death as a competing risk showed similar results for stroke and HF. Conclusions-RFA did not reduce mortality or hospitalization for HF during the immediate 3.5-year follow-up. Although a beneficial effect on stroke prevention associated with RFA was suggested, residual confounding attributable to unmeasured factors remains a concern. ? 2013 American Heart Association, Inc.
SDGs

[SDGs]SDG3

Other Subjects
2,4 thiazolidinedione derivative; acetylsalicylic acid; alpha adrenergic receptor blocking agent; alpha glucosidase inhibitor; angiotensin receptor antagonist; antiarrhythmic agent; antihypertensive agent; beta adrenergic receptor blocking agent; biguanide derivative; calcium channel blocking agent; clopidogrel; digitalis glycoside; dipeptidyl carboxypeptidase inhibitor; diuretic agent; fibric acid derivative; hydroxymethylglutaryl coenzyme A reductase inhibitor; insulin derivative; oral antidiabetic agent; sulfonylurea; warfarin; adult; aged; article; catheter ablation; cerebrovascular accident; cohort analysis; comorbidity; controlled study; death; diabetes mellitus; female; follow up; heart atrium fibrillation; heart failure; hospitalization; human; hypertension; major clinical study; male; middle aged; morbidity; mortality; outcome assessment; outpatient; priority journal; propensity score; retrospective study; risk; catheter ablation; epidemiology; heart atrium fibrillation; heart failure; mortality; proportional hazards model; risk factor; Taiwan; treatment outcome; atrial fibrillation; catheter ablation; heart failure; mortality; stroke; Adult; Aged; Atrial Fibrillation; Catheter Ablation; Comorbidity; Confounding Factors (Epidemiology); Female; Heart Failure; Hospitalization; Humans; Male; Middle Aged; Propensity Score; Proportional Hazards Models; Retrospective Studies; Risk Factors; Stroke; Taiwan; Treatment Outcome
Publisher
Lippincott Williams and Wilkins
Type
journal article

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