Echocardiographic analysis of ventricular geometry and function during repair of XXXX .

@entity3207 @entity64 @entity2438 @entity1757
BACKGROUND: This study investigated changes in left ventricular (LV) geometry and systolic function after corrective surgery for atrial ( @entity2438 ) and @entity1757 ( @entity1757 ). METHODS: Transesophageal LV short-axis echocardiograms were recorded before and after operative repair of @entity2438 (n = 11) and @entity1757 (n = 7). Preload was measured using LV end-diastolic area indexed for body surface area. Measurements of septal-freewall (D1) and anterior-posterior (D2) endocardial diameters were used to assess LV symmetry from D1/D2. Systolic indices included @entity64 area, area ejection fraction, and fractional @entity3207 . RESULTS: Preload, @entity64 area, area ejection fraction, and fractional @entity3207 of D1 increased after @entity2438 repair but decreased after @entity1757 repair (p < 0.05). End-diastolic symmetry increased after @entity2438 closure and decreased after @entity1757 closure (p < 0.05). Increases in @entity64 area and ejection fraction after @entity2438 correction primarily reflected increased @entity3207 of D1. A positive correlation was found overall between percent change in end-diastolic area (EDA) and percent change in area ejection fraction (r(2) = 0.80, p < 0.0001, n = 18). CONCLUSIONS: Preload was the primary determinant of changes in LV function in this series of @entity2438 and @entity1757 repairs. Intraoperative changes in position of the interventricular septum affected systolic and diastolic LV symmetry and septal free wall @entity3207 . Additional studies are needed to define changes in afterload and contractility as well as diastolic compliance and systolic mechanics.
