Atrial Mechanical Function After Maze Procedure for Atrial Fibrillation Concomitant With Mitral Valve Surgery

서지정보

· 발행기관 : 대한심장학회
· 수록지 정보 : Korean Circulation Journal / 38권 / 11호 / 606 ~ 611페이지
· 저자명 : 송봉근, 조수진, 이상엽, 김정혁, 최승민, 박용환, 최진오, 이상철, 온영근, 박승우, 김준수, 박표원

초록

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.

참고자료

· 없음