Objective. We aimed to investigate if preoperative left ventricular (LV) function assessed by exercise echocardiography could predict late postoperative LV function in aortic regurgitation (AR) patients and to evaluate how LV long-axis function is affected late after aortic valve surgery. Design. A total of 21 male chronic AR patients, aged 49 () years, accepted for surgery were examined preoperatively, 6 months-, and 4 years postoperatively, at rest and during exercise. Besides conventional echocardiographic parameters, the atrioventricular plane displacement (AVPD) by M-mode and peak systolic velocity (s’) in the basal LV by color tissue Doppler were measured. Results. Preoperatively EFrest and EFexercise, were 55()% and 54()%, respectively, and ∆EF 0()%. LV dimensions and volumes indexed to BSA had decreased at the 6-month follow-up and were stable at late follow-up. s'rest, s'exercise, AVPDrest, and AVPDexercise were unchanged at both the postoperative examinations (all P ≥ 0.05). Preoperative EFexercise and AVPDexercise showed inverse correlation to late postoperative indexed LV enddiastolic volume (r = –0.68, p < 0.004 and r = –0.86, P < 0.001) and indexed LV endsystolic volume (r = –0.68, P = 0.004 and r = –0.81, P < 0.001), while there was no correlation to preoperative EFrest and AVPDrest (all r < 0.2). Conclusions. Preoperative exercise echocardiography can detect AR patients with suboptimal LV remodeling late postoperatively.