Percutancous transluminal coronary angioplasty was pcrfonned in 70patients with high risk characteristics from Jan.1998 toDcc.1997 These factors include age】70(10patients),unstableangina(35patients),ejection fraction...Percutancous transluminal coronary angioplasty was pcrfonned in 70patients with high risk characteristics from Jan.1998 toDcc.1997 These factors include age】70(10patients),unstableangina(35patients),ejection fraction【40%(7 patients),multivesseldisease(50patients).There were 96 lesions(79 vessels)dilated,amongthem type Alesion 15,type B lesion 52,type C lesion 29.Autoperfusion balloon was used in 7 patients, coronary stcnl wasimplantcd in 50 paticnts.One patient undcrgoing directional coronaryathrectomy(DCA).The clinical success rate was 91.5% and lesionsuccess rate was 89.6%.Average predilation stenosis was 89.5+8.2%and average postdilation stenosis was 16.9+6.2%.Two patients diedfrom abrupt vessel closureno acule myocardial infarction andemergency coronary bypass operation.The considerations in selectionand management of these high risk patients were discussed. The resultsshowed that PTCA can be performed safely in the complex cases.展开更多
文摘Percutancous transluminal coronary angioplasty was pcrfonned in 70patients with high risk characteristics from Jan.1998 toDcc.1997 These factors include age】70(10patients),unstableangina(35patients),ejection fraction【40%(7 patients),multivesseldisease(50patients).There were 96 lesions(79 vessels)dilated,amongthem type Alesion 15,type B lesion 52,type C lesion 29.Autoperfusion balloon was used in 7 patients, coronary stcnl wasimplantcd in 50 paticnts.One patient undcrgoing directional coronaryathrectomy(DCA).The clinical success rate was 91.5% and lesionsuccess rate was 89.6%.Average predilation stenosis was 89.5+8.2%and average postdilation stenosis was 16.9+6.2%.Two patients diedfrom abrupt vessel closureno acule myocardial infarction andemergency coronary bypass operation.The considerations in selectionand management of these high risk patients were discussed. The resultsshowed that PTCA can be performed safely in the complex cases.
