High-speed rotational atherectomy: Six-month serial quantitative coronary angiographic follow-up
1996; Elsevier BV; Volume: 131; Issue: 4 Linguagem: Inglês
10.1016/s0002-8703(96)90265-3
ISSN1097-6744
AutoresSimon H. Stertzer, Eugene Pomerantsev, Peter J. Fitzgerald, Paul G. Yock, Alan C. Yeung, Richard E. Shaw, Antony Walton, Alan H. Singer, William J. Sanders, Stephen N. Oesterle,
Tópico(s)Cerebrovascular and Carotid Artery Diseases
ResumoOne hundred twenty-three patients treated with high-speed rotational atherectomy (HSRA) were restudied 6.9 ± 1.2 months later. At the follow-up, the number of focal concentric lesions increased from 32.2% to 63.0%, p < 0.01, with decrease of type C lesions from 54.8% to 30.8%, p < 0.05. Comparison of the degree of the net gain (NG) showed more severe baseline lesions in the high-gain group (NG > 20%) compared with the moderate-gain group (20% > NG > 0%) and to the loss group (minimal luminal diameter [MLD] 0.8 ± 0.4 mm vs 1.0 ± 0.4 mm, p < 0.05; and 1.2 ± 0.5 mm; p < 0.01, respectively). Highest initial gain (36.5% ± 26.2% vs 24.5% ± 18.1%; p < 0.015; and 19.0% ± 23.2%; p < 0.001) as well as lowest rate loss (1.8% ± 21.7% vs 14.0% ± 18.4%; p < 0.01 and 28.1% ± 25.0%; p < 0.01) were found in the high NG group. A higher interaction between burr and atheroma resulted in the lowest restenosis rate of 6%.
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