Atrial Mechanical Function After Maze Procedure for Atrial Fibrillation Concomitant With Mitral Valve Surgery.
10.4070/kcj.2008.38.11.606
- Author:
Bong Gun SONG
1
;
Soo Jin CHO
;
Sang Yeub LEE
;
Jung Hyuk KIM
;
Seung Min CHOI
;
Yong Hwan PARK
;
Jin Oh CHOI
;
Sang Chol LEE
;
Young Keun ON
;
Seung Woo PARK
;
June Soo KIM
;
PyoWon PARK
Author Information
1. Division of Cardiology, Cardiac and Vascular Center, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea. yk.on@samsung.com
- Publication Type:Original Article
- Keywords:
Heart surgery;
Atrial fibrillation;
Left atrial function;
Cardiac volume, left atrium
- MeSH:
Atrial Fibrillation;
Atrial Function, Left;
Diabetes Mellitus;
Echocardiography;
Follow-Up Studies;
Humans;
Hypertension;
Mitral Valve;
Prospective Studies;
Renal Insufficiency;
Smoke;
Smoking;
Stroke;
Thoracic Surgery;
Thyroid Gland
- From:Korean Circulation Journal
2008;38(11):606-611
- CountryRepublic of Korea
- Language:English
-
Abstract:
BACKGROUND AND OBJECTIVES: The maze procedure is effective in restoring sinus rhythm (SR) in patients with atrial fibrillation (AF). We compared the left atrial mechanical function (LAMF) of patients whose rhythm was converted to SR after maze procedure with that of patients whose rhythm was not converted to SR and determined if preoperative left atrial volume index (LAVI) and immediate postoperative LAMF could predict conversion of AF to SR. SUBJECTS AND METHODS: We prospectively evaluated 80 patients with AF treated with the maze procedure between March 2005 and February 2007. LAMF was assessed by looking at left atrial ejection volume (LAEV) and ejection fraction (LAEF) during echocardiography before, 2 weeks after, and 6 months after the procedure. RESULTS: Of the 80 enrolled patients, 71 were converted to SR after the maze procedure (SR group), and 9 were not converted to SR (AF group). There were no significant differences in age, sex, hypertension, diabetes mellitus, renal failure, stroke, thyroid dysfunction, or smoking history between the groups. Pre-operative LAVI (p=0.010) was a predictor of conversion of AF to SR. LAEF gradually increased in the SR group during follow-up, but not in the AF group. CONCLUSION: LAMF recovered in the SR group after the maze procedure, irrespective of clinical presentation and initial LAMF. Preoperative LAVI predicted SR conversion.
