In 33 @entity1 with @entity472 ( @entity472 ), 27 with combined @entity886 ( @entity472 + @entity337 ) and 23 with chronic @entity337 ( @entity337 ) left ventricular angiographic muscle mass (LMMI) was determined before and after successful valve replacement. Preoperative age in the three groups was 51, 47 and 42 years (P less than 0.05 vs. @entity472 ) respectively; recatheterization was carried out 17, 20 and 21 months postoperatively (not significant). In all three groups angiographic mass decreased (P less than 0.001) following surgery: In @entity472 from 167 to 117, in @entity472 + @entity337 from 200 to 127 and in @entity337 from 192 to 142 g/m2. Left ventricular end-diastolic wall thickness decreased from 1.22 to 1.02 (P less than 0.001) in @entity472 and from 1.19 to 1.03 cm (P less than 0.001) in @entity472 + @entity337 . No change of wall thickness occurred in the @entity1 with @entity337 . Left ventricular ejection fraction (EF) increased from 61 to 68% (P less than 0.01) in @entity472 , from 58 to 68% (P less than 0.005) in @entity472 + @entity337 and from 52 to 59% (P less than 0.02) in @entity337 . The postoperative EF in the @entity1 with @entity337 was smaller (P less than 0.05) than in @entity472 , @entity472 + @entity337 and in controls (EF = 68%, n = 18). Postoperative normalization of LMMI (less than or equal to 120 g/M2) occurred in 22/33 (67%) @entity1 with @entity472 , in 14/27 (52%) with @entity472 + @entity337 and in 8/23 (35%) with @entity337 . The age of the @entity1 and the time interval between surgery and recatheterization had no influence on postoperative normalization or non-normalization of LMMI.(ABSTRACT TRUNCATED AT 250 WORDS)

[Regression of heart hypertrophy in XXXX with operated @entity886 ].

@entity1 :: ('9606', 'Species') :: ['patients'] @entity472 :: ('MESH:D001024', 'Disease') :: ['AS', 'aortic stenosis'] @entity886 :: ('MESH:C563178', 'Disease') :: ['aortic valve lesion'] @entity337 :: ('MESH:D001022', 'Disease') :: ['AI', 'aortic insufficiency']
@entity1 :: (9606,Species) :: ['patients']
