Predictors of sinus rhythm after radiofrequency maze and mitral valve surgery.
Asian Cardiovasc Thorac Ann
; 16(4): 292-7, 2008 Aug.
Article
en En
| MEDLINE
| ID: mdl-18670021
ABSTRACT
The prevalence and predictors of postoperative sinus rhythm in patients undergoing a radiofrequency ablation maze operation and mitral valve surgery were assessed in 63 patients of whom 54 (86%) were in permanent atrial fibrillation. Operative mortality was 3.17%. At a median follow-up of 18 months, 54 (88.5%) patients were in sinus rhythm and 7 (11.5%) were in atrial fibrillation. The probability of sinus rhythm at 30 months was 92%. Left atrial diameter was the most significant prognostic factor for sinus rhythm on multivariate proportional-hazard regression analysis. The cutoff value of preoperative left atrial diameter for predicting persistent atrial fibrillation at 6 months was 6 cm (100% sensitivity and 73.6% specificity). The radiofrequency ablation maze operation can be performed in addition to mitral surgery with a high rate of successful conversion to sinus rhythm. Preoperative left atrial diameter < 6 cm is an important prognostic factor for sinus rhythm conversion.
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Bases de datos:
MEDLINE
Asunto principal:
Fibrilación Atrial
/
Ablación por Catéter
/
Implantación de Prótesis de Válvulas Cardíacas
/
Electrocardiografía
/
Frecuencia Cardíaca
/
Enfermedades de las Válvulas Cardíacas
/
Válvula Mitral
Tipo de estudio:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Asian Cardiovasc Thorac Ann
Asunto de la revista:
ANGIOLOGIA
/
CARDIOLOGIA
Año:
2008
Tipo del documento:
Article
País de afiliación:
Tailandia