LA function and VO
REGRESSION
This study explored LA function. In the overall population, 22 patients (30%) had an elevated LAVI (≥ 34 mL/mLinear correlations between LA reservoir strain (Receiver operating characteristic curve analysis of the parameters with the greatest area under the curve**AUC, area under the curve; CI, confidence interval; LA, left atrial; LVEF, left ventricular ejection fraction; TAPSE, tricuspid annular plane systolic excursionReceiver operating characteristic curves of LA strain in the univariable regression model for predicting VOConsidering the results of univariate regression, clinical significance, and reducing collinearity of variables to avoid overfitting, the predictor variables of this study were LA reservoir strain, LA conduit strain, LA booster strain, LAVIAssociation between LA parameters, clinical or other echocardiographic variables, and VOModel 1: adjusted for age, sex, and BMI. Model 2: adjusted for NT-proBNP, hemoglobin and GFR. Model 3: adjusted for left ventricular ejection fraction, E/e' and TAPSELA, left atrial; LAVIIn our study, the lower the LA reservoir strain was, the lower VOBubble chart of LA reservoir strain < or ≥ 24.9% and normal/dilated LAVI