BODY-SURFACE POTENTIAL MAPPING (BSPM) BEFORE AND AFTER PERCUTANEOUS TRANSLUMINAL CORONARY ANGIOPLASTY (PTCA)

The departure index area of departure maps before and after the PTCA p rocedure was evaluated in 1 0 randomly chosen patients with clinically significant ischaemic heart disease . The body surface mapping system CARDIAG 128.1, (ZPA Prague-Cakovice) was used. The departure index wa s calculated using Kubota's formula. The departure indexes of the ST-T interval and departure maps of 36 ms and 80 ms intervals from the J p oint were followed. A decrease of the departure index area was conside red as a sign of successful PTCA. A correct classification was made in 6 patients out of 9 (66 %) with successfully performed PTCA. The iden tification of one patient with unsuccessful PTCA procedure was also co rrectly determined. The overall correlation between the effect of PTCA and the departure index area change was 7 out of 10 (70 %). The autho rs consider this method to be a useful non-invasive method for identif ying of successful or unsuccessful PTCA in patients with coronary arte ry disease.