Echocardiographic Assessment of Left Ventricular Remodeling: Are Left Ventricular Diameters Suitable Tools?

摘要: Objectives. We sought to analyze the value of echocardiographic left ventricular (LV) diameters in assessing LV remodeling. Background. are easily measured and commonly used as a substitute for volumetric analysis evaluate remodeling caused by overload or dysfunction. However, impact these measurements on outcome is disputed, suggesting that they may not adequately assess Methods. M-mode echocardiographically dimensions derived ejection fraction end-systolic wall stress were compared with volumes using biplane Simpson rule. These made prospectively simultaneously 463 patients (289 men, 174 women; mean [6SD] age 62 6 15 years), including 46 normal subjects, 52 aortic regurgitation, 253 mitral regurgitation 112 Results. The correlation between diameter volume was good at end-systole (r 5 0.91, p < 0.0001) end-diastole 0.86, 0.0001). relation exponential, 95% confidence interval increased increasing diameter. calculated correlated linearly limited range error 0.96, SEE 5%, 0.0001 r 0.95, 20 g/cm2 ,p< 0.0001, respectively). Conclusions. For remodeling, echocardiography allow acceptable estimation correlate significantly but hindered wide assessment size, especially enlarged ventricles, measurement should be preferred method (J Am Coll Cardiol 1997;30:1534 ‐ 41) ©1997 American College Cardiology