Preoperative predictors of recurrent atrial fibrillation late after successful mitral valve reconstruction.
OBJECTIVE
Late outcome after mitral valve repair was examined to define preoperative predictors of recurrent atrial fibrillation late after successful mitral valve reconstruction.


METHODS
One hundred and eighty-nine patients, 112 with preoperative sinus rhythm and 72 with preoperative chronic or intermittent atrial fibrillation, were followed for 12.2 +/- 10 years after valve repair. Clinic, hemodynamic end echocardiographic data were entered into Cox-regression and Kaplan-Meyer analysis to assess predictors for recurrent atrial fibrillation late after successful mitral valve repair.


RESULTS
Univariate and multivariate predictors for recurrent atrial fibrillation late after successful mitral valve reconstruction were preoperative atrial fibrillation (P = 0.0001), preoperative antiarrhythmic drug treatment (P = 0.005), heart rate (P = 0.01), left ventricular ejection fraction (P = 0.01) and increased left ventricular posterior wall thickness (P = 0.05). Patients > 57.5 years with a mean pulmonary artery pressure > or =23 mm Hg and a history of preoperative antiarrhythmic drug treatment had an odds ratio of 53.33 (95% confidence limits 6.12-464.54) for atrial fibrillation late after successful mitral valve repair.


CONCLUSIONS
Older patients with a history of atrial fibrillation, antiarrhythmic treatment or an elevated pulmonary artery pressure may present atrial fibrillation late after successful mitral valve repair. They could be considered for combined mitral valve reconstruction and surgery for atrial fibrillation even though sinus rhythm is present preoperatively.
Vogt
P R
PR
Clinic for Cardiovascular Surgery, University Hospital, Zurich, Switzerland. paul.vogt@chi.usz.ch
Brunner-LaRocca
H P
HP
Rist
M
M
Zünd
G
G
Genoni
M
M
Lachat
M
M
Niederhäuser
U
U
Turina
M I
MI
D000328:Adult; D000368:Aged; D001281:Atrial Fibrillation / Q000209:etiology* / Q000503:physiopathology; D002908:Chronic Disease; D005260:Female; D006439:Hemodynamics; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D008946:Mitral Valve Stenosis / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D011183:Postoperative Complications; D011379:Prognosis; D012008:Recurrence; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome; D014463:Ultrasonography