C11. Kim SH, Jeong MH, Jang YS, Bae Y, Kim JW, Cho JH, Kim NH, Park WS, Ahn Y, Cho JG, Park JC, Kang JC; Clinical experiences of coronary MAC (Maximum Arterial Re-Creation) stent. Korean Circulation J 1998;28(10)1700-1706.
(Abstract)
Background and Objectives:We previously reported the effects of MAC (Maximum Arterial Re-Creation) stent on stent restenosis in a porcine model. The clinical trial was performed in patients with ischemic heart disease after MAC stent implantation.
Materials and Method:We analyzed the clinical and angiographic re-sults in 20 patients in 22 lesions (15 M, 5 F, 59±11 year), who underwent MAC stent at Chonnam University Hospital between Nov ’97 and Aug ’98. Clinical diagnosis was 13 unstable angina (65%), 6 acute myocardial infarction (30%) and 1 old myocardial infarction (5%).
Results:Indications for stent were 3 de novo lesion (13.6%), 7 restenosis (31.8%), 8 suboptimal angioplasty result (36.4%) and 4 bail-out procedure (18.2%). Target stented coronary arteries were 15 left anterior descending coronary arteries (67.3%), 2 left circumflex coronary arteries (9.1%) and 5 right coronary arteries (22.7%). Morphologic types were 13 type B1 (59.1%), 5 B2 (22.7%) and 4 C (18.2%). Minimal luminal diameter (MLD) before stent was 0.75±0.35 mm and percent diameter stenosis (DS) was 75±11.5%, which were improved 2.97±0.28 mm in MLD and 2.79±5.4% in DS after stent. MAC stent was placed successfully in all patients and one case of acute stent thrombosis was improved after ReoPro infusion. Mean follow-up period was 5.2±3.2 months and 100% event-free survival was observed in all patients. Follow-up coronary angiography was performed in 5 patients and showed no stent restenosis.
Conclusion:The MAC stent is one of effective and safe devices in the treatment of coronary artery diseases without significant complications and target vessel revascularization.
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