Functional status and left ventricular performance late after valve replacement for XXXX . Relation to preoperative data.

@entity1 @entity1184 @entity1442 @entity4346 @entity472
Relations between preoperative data and status at one- and 10-year control and left ventricular performance (radionuclide angiocardiography) at follow-up 10-17 years (mean 12 years) after valve replacement (1965-73) for @entity472 were studied. Marked improvements at one-year were noted for New York Heart Association (NYHA) functional classes, cardiothorac index (CTI), and ECG @entity1184 (Romhilt-Estes) score. One-year status did not influence that at 10 years. In 59 @entity1 who were in NYHA class I at one year, class I was maintained in 75% of those who were in class II preoperatively, compared with 47% of those who had been in class III, and 23% of those who had been in class IV, (P less than 0.05). The same relation to preoperative level was found for @entity1 with CTI less than or equal to 0.50 at one-year control. The ECG score did not change after the first year. @entity4346 (ECG score greater than or equal to 4) was present in 90% and 84% of the @entity1 at one and 10 years, respectively. Ejection fraction (EF) and peak filling rate (PFR) at follow-up were (mean +/- SD) 65 +/- 13% and 3.14 +/- 1.05 end-diastolic volume s-1, respectively; only 13 @entity1 had a radionuclide study within the normal range for all parameters measured. A normal study was found predominantly in @entity1 with complete regression of @entity1184 . Multiple linear regression models incorporating preoperative data allowed calculation of predicted EF (65 +/- 9) and PFR (3.17 +/- 0.92) which did not differ from the measured values. Functional status and left ventricular systolic and diastolic performance late after the operation depended closely on preoperative status. Improvements noted at one year were only temporary in @entity1 with preoperative @entity1442 . Normal left ventricular performance late after valve replacement was related to complete reversibility of @entity1184 . Our results argue for operation in minimally symptomatic @entity1 .
