Conservative operation for XXXX . Independent determinants of late results.

@entity1 @entity339 @entity9467 @entity887 @entity1031 @entity955 @entity4794 @entity715 @entity204
A retrospective study was designed to define the independent determinants of late results in 282 consecutive @entity1 operated on for @entity4794 between 1978 and 1985. A total of 25 variables were investigated by multivariate discriminant analysis for their possible influence on symptomatic outcome, subsequent reoperation, postoperative @entity1031 , and @entity204 . All the @entity1 underwent a conservative mitral valve operation. In addition, 25 @entity1 required concomitant tricuspid annuloplasty. The surgical mortality rate was 1.4% and the late mortality, reoperation, and @entity1031 rates were, respectively, 0.14%, 0.80%, and 0.95%/pt-yr. Actuarial probability of complication-free survival at 8 years was 83% +/- 3.7%. Left atrial size on the M-mode echocardiograms, tricuspid annuloplasty, mitral annuloplasty, presence of left @entity715 , male gender, and separation of @entity9467 portended a significantly higher likelihood of poor postoperative symptomatic status (p less than 0.0005). Preoperative mild @entity339 , E to F slope on the M-mode echocardiogram, and tricuspid annuloplasty had significant influence on the need for late reoperation (p less than 0.05). Postoperative @entity955 , mitral valve amplitude on the M-mode echocardiogram, preoperative @entity887 , and residual @entity339 had an independent predictive power for postoperative @entity1031 (p less than 0.05). Finally, preoperative @entity955 , preoperative cardiothoracic ratio, postoperative left atrial size, and postoperative @entity955 all influenced the probability of long-term complications. These results suggest that earlier operation should be considered in @entity1 with @entity4794 , to increase the complication-free survival rate.
