Percutancous transluminal coronary angioplasty was pcrfonned in 70patients with high risk characteristics from Jan.1998 ......

Percutoneous transiuminal coronary anginplesty(PTCA)was performed in33 patients of coronary heart diseases(male 30 cases......

The operation of PBMV is popular and considecl highlybeacuso of advantages of satisfactory effects andlittle lesion.But ......