942-40 Late Results of Balloon Pulmonary Valvuloplasty in Adults

Abstract

Late results of balloon pulmonary valvuloplasty (BPV) in adults are not well known. That is, the results are either early or medium-term ones, or they consist of limited cases. For this purpose we followed up 127 patients (pts,) after successful BPV for a period of &5–7 years. Of these pts. 86 were male and 41 female with an average age of 29.7 (16–54) years. Average pulmonary valve gradient (PVG) was 108.4 + 40.3 (5&–240) mm HG before and 22.3 + 8.5 (80–50) mm HG immediately after BPV (P < 0.0001). Mild to moderate pulmonary insufficiency was detected in 35 pts. All patients were followed-up every six months by doppler echocardiography for a period of 61–86 months. As they did not refer at the last months of follow up, 16 pts. were excluded from the study. After this period, the average PVG in the remaining pts. was 20.5 + 10.4 (8–60) mm HG (P < 0.0001). Of these Pts., in 27 cases, the average PVG was less than its value just after BPV; in 29 cases it was the same and in the remaining 10 cases, the average PVG increased to a value of 44.6 + 10.6 mm HG. After this period of follow up, pulmonary insufficiency was increased slightly in 4 pts. One Pt. showed moderate right ventricular dysfunction due to severe PI. Average PVG was increased mainly in those pts. who showed a PVG of more than 35 mm HG shortly after BPV.Right ventricular hypertrophy in ECG was resolved in 78 Pts. after this period of follow up. In conclusion, PBV in adults is an effective and safe procedure. Late results of this procedure are as good as their immediate ones.