Author/Authors :
Simon H. Stertzer، نويسنده , , Eugene V. Pomerantsev، نويسنده , , Peter J. Fitzgerald، نويسنده , , Paul G. Yock، نويسنده , , Alan C. Yeung، نويسنده , , Richard E. Shaw، نويسنده , , Antony S. Walton، نويسنده , , Alan H. Singer، نويسنده , , William J. Sanders، نويسنده , , Stephen N. Oesterle، نويسنده ,
Abstract :
One 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%.
