Debbas N, Eeckhout E, Stauffer J C, Kaufman U, Vogt P, Sigwart U, Kappenberger L, Goy J J
Division de cardiologie, Centre hospitalier universitaire vaudois, Lausanne, Suisse.
Arch Mal Coeur Vaiss. 1995 Jul;88(7):987-91.
Between March 1991 and June 1994, the authors treated restenosis (> or = 50%) of coronary endoprostheses in 17 men aged 39 to 72 years by balloon angioplasty. The stents had been implanted for de novo stenosis in 14 patients, restenosis in 1 patient and for acute occlusion in 2 patients. The vessels treated were the left anterior descending artery (1 case), the left circumflex artery (2 cases), the right coronary artery (7 cases) and venous bypass grafts (7 cases). The endoprostheses used were 5 Wallstents in 4 patients, 13 Wiktor stents in 11 patients and 2 Palmaz-Schatz in 2 patients. Clinically, the patients with restenosis presented with class II angina (6 patients), class III (8 patients) and class IV (3 patients) of the Canadian Cardiovascular Society Classification. Conventional balloon angioplasty was performed 17 months (range: 3 to 87 months) after stent implantation and resulted in immediate clinical and angiographic success (residual stenosis < or = 50% on quantitative analysis) in all patients. In particular, there were no dissections. The minimal lumenal diameter (MLD) and percentage stenosis changed from 1.04 mm (range: 0.87 to 1.20) and 72% (range: 68 to 76) respectively before stent implantation to 2.83 mm (range: 2.46 to 3.20) and 23% (range: 20 to 27) after stent implantation. Restenosis resulted in a MLD and percentage stenosis of 0.89 mm (range: 0.77 to 1.01) and 73% (range: 69 to 78) respectively. After angioplasty of the stent, they returned to 2.68 mm (range: 2.29 to 3.06) and 27% (range: 23 to 30) respectively. The patients were not anticoagulated after angioplasty.(ABSTRACT TRUNCATED AT 250 WORDS)
1991年3月至1994年6月期间，作者对17名年龄在39至72岁的男性患者的冠状动脉内支架再狭窄（≥50%）进行了球囊血管成形术治疗。14例患者的支架用于原发性狭窄植入，1例用于再狭窄植入，2例用于急性闭塞植入。治疗的血管包括左前降支动脉（1例）、左旋支动脉（2例）、右冠状动脉（7例）和静脉旁路移植血管（7例）。使用的内支架中，4例患者用了5个Wallstent支架，11例患者用了13个Wiktor支架，2例患者用了2个Palmaz-Schatz支架。临床上，再狭窄患者表现为加拿大心血管学会分类的II级心绞痛（6例）、III级（8例）和IV级（3例）。在支架植入后17个月（范围：3至87个月）进行了常规球囊血管成形术，所有患者均取得了即刻临床和血管造影成功（定量分析显示残余狭窄≤50%）。特别是，没有出现夹层。最小管腔直径（MLD）和狭窄百分比分别从支架植入前的1.04 mm（范围：0.87至1.20）和72%（范围：68至76）变为植入后2.83 mm（范围：2.46至3.20）和23%（范围：20至27）。再狭窄导致MLD和狭窄百分比分别为0.89 mm（范围：0.77至1.01）和73%（范围：69至78）。支架血管成形术后，它们分别恢复到2.68 mm（范围：2.29至3.06）和27%（范围：23至30）。血管成形术后患者未进行抗凝治疗。（摘要截短至250字）
