Cutting balloon angioplasty for treatment of lesions in small coronary arteries / 介入放射学杂志

ABSTRACT

Objective To evaluate the clinical efficacy of cutting balloon angioplasty (CBA) for treating lesions in small coronary arteries. Methods The diameter for reference of coronary artery is less than 2.7mm which is considered as “small vessel”. CBA procedures were performed on 25 lesions in 22 patients. Results The procedure was successfully obtained in 21 lesions(84%). Seven severe stenotic lesions (diameter of stenosis≥90%) underwent dilatation with small conventional balloon(1.5 mm diameter). Bail out stenting was performed in 2 lesions because of severe dissections. Failure of cutting balloon to pass through the stenosis in one lesion. During follow up, 5 patients had recurrence of coronary angina and 3 of them underwent coronary angiography for check up, In stent restenosis (ISR) occurred in one patient, which was successfully redilated using CBA. One patient had total occlusion of the diagonal branch with ISR of LAD. One patient developed new lesion in other coronary artery.Conclusions CBA is safe and effective, and provides a new therapeutic strategy for lesions in the small coronary arteries.