Stenting of long coronary artery lesions: Initial angiographic results and6-month clinical outcome of the micro stent II-XL

To evaluate the results of long Micro Stent II (MS-XL) implantations, 119 M S-XLs were implanted in 102 patients (age, 62.83 years). Nineteen stents (1 6%) were implanted in saphenous vein grafts; 100 stents (84%) were implante d in native coronary arteries. Twenty-five patients (25%) were treated beca use of acute myocardial infarction (AMI); 30 patients (29%) because of unst able angina or angina class IV, and 47 patients (46%) because of stable ang ina. Eighty-six de novo lesions (84%) and 16 restenotic lesions (16%) were treated. Indications for stent implantation include elective, 61 patients ( 60%); suboptimal balloon angioplasty result, 22 patients (21%); and bailout after balloon angioplasty, 19 patients (19%). Because of residual thrombus after stenting, 27 patients (26%) received abciximab. All patients receive d ticlopidin for 28 days and acetylsalicylic acid. One hundred and seventee n MS-XLs (98%) were implanted successfully. Additional (shorter) MS-II were implanted in 40 patients (39%). The stented segment length was 45 +/- 20 m m, The minimum lumen diameter increased from 0.5 +/- 0.5 mm before to 2.7 /- 0.5 mm after stent implantation, The acute gain was 2.2 +/- 0.4 mm. Earl y clinical events (<4 weeks) include death, 3 (3%); subacute stent thrombos is, 1 (1%); non-a-wave infarction, 2 (2%); CABG, 1 (1%); vascular complicat ions, 2 (2%). Late clinical events (<6 months) include acute myocardial inf arction, 5 (5%); reintervention, 6 (6%); CABG, 1 (1%), The procedural succe ss rate was 88%, and the event free survival at 6 months was 76%. Stenting of long lesions with the MS-XL was successful and associated with an accept able complication rate, (C) 1999 Wiley-Liss, Inc.