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Coronary Stenting After Rotational Atherectomy in Diffuse Lesions of the Small Coronary Artery: Comparison with Balloon Angioplasty Before Stenting

Donghoon Choi, MD

Seung-Hyuck Choi, MD

Bon Kwon Koo, MD

Yangsoo Jang, MD

Won-Heum Shim, MD

Seung-Yun Cho, MD

The purpose of this randomized trial was to evaluate the role of debulking and balloon predi lation on acute and long-term results of stent implantation in diffuse stenosis of small vessels. Patients with symptomatic diffuse stenosis of the native left anterior descending coronary artery between 2 and 2.9 mm in size were randomly assigned to rotational atherec tomy (group I, n = 21 ) or balloon dilation (group II, n = 20) before stenting. The primary end point of the study was the incidence of angiographic restenosis at follow-up; adverse clinical events, such as death, myocardial infarction, stroke, or target vessel revascularization, were assessed as secondary end points. Acute gain was significantly greater in group I than in group II (p = 0.038), but net gain at follow-up was similar in both groups (p = 0.24). There was no significant difference in angiographic restenosis rate (33.3% vs 31.3%, p = 0.80), target vessel revascularization (23.8% vs 15%, p=0.21) or 1-year event-free survival rate (72.8% vs 84.6%, p = 0.28). In conclusion, rotational atherectomy before stenting showed no additional benefit over balloon dilation with stenting in the management of diffuse lesions in small coronary vessels.

Angiology, Vol. 54, No. 4, 423-431 (2003)
DOI: 10.1177/000331970305400406


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