Combination of Left Ventricular End-Diastolic Diameter and QRS Duration Strongly Predicts Good Response to and Prognosis of Cardiac Resynchronization Therapy

Figure 1

Receiver operating characteristic curve for LVEDD (red line), QRS duration (blue line), and combination of LVEDD and QRS duration (green line) in predicting response. Combination of LVEDD and QRS duration versus LVEDD alone AUC (0.836 vs. 0.662, Z = 3.058, ). Combination of LVEDD and QRS duration versus QRS duration alone AUC (0.836 vs. 0.744, Z = 2.309, ). LVEDD versus QRS duration AUC (0.662 vs. 0.744, Z = 1.323, ). LVEDD: left ventricular end-diastolic dimension; AUC: area under the curve.