Left atrial dysfunction and new-onset atrial fibrillation after cardiac surgery.
Rev Esp Cardiol
; 62(7): 774-80, 2009 Jul.
Article
en En, Es
| MEDLINE
| ID: mdl-19709513
ABSTRACT
INTRODUCTION AND OBJECTIVES:
Postoperative atrial fibrillation is a common complication of carrying out cardiac surgery with extracorporeal circulation (ECC). The aim of this study was to determine whether preoperative left atrial contractile dysfunction, as assessed by tissue Doppler echocardiography, is associated with the development of postoperative new-onset atrial fibrillation (PAF).METHODS:
Transthoracic Doppler echocardiography was performed preoperatively in patients undergoing elective cardiac surgery. Left atrial contractile function was evaluated by tissue Doppler imaging (TDI) of the mitral annulus.RESULTS:
The study included 92 patients in sinus rhythm preoperatively who underwent elective cardiac surgery with ECC 73 (79%) were male and 19 (21%) were female, and their mean age was 67 (10) years. Of these, 19 (20.6%) developed PAF 34 (12) h postoperatively. Bivariate analysis showed that PAF was associated with older age (71 [7] years vs 66 [10] years; P=.034), a large left atrial diameter (LAD), and a low peak atrial systolic mitral annular velocity (A velocity) and a high mitral E/A ratio on TDI. Logistic regression analysis showed that PAF was independently associated with a large LAD (odds ratio [OR] =2.23; 95% confidence interval [CI], 1.05-4.76; P=.033) and a low A velocity (OR=0.70; 95% CI, 0.55-0.99; P=.034).CONCLUSIONS:
Preoperative left atrial dysfunction, as assessed by TDI, was associated with an increased risk of PAF.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fibrilación Atrial
/
Puente Cardiopulmonar
/
Ecocardiografía Doppler
/
Ecocardiografía Transesofágica
/
Atrios Cardíacos
Tipo de estudio:
Etiology_studies
/
Risk_factors_studies
Límite:
Aged
/
Female
/
Humans
/
Male
Idioma:
En
/
Es
Revista:
Rev Esp Cardiol
Año:
2009
Tipo del documento:
Article