Preliminary clinical application of SilverHawk directional atherectomy device in arteriosclerosis obliterans of lower extremity

VernacularTitle:SilverHawk斑块切除系统治疗下肢动脉硬化闭塞症的初步临床应用
Author: Jun QIAN ; Hong JIANG ; Gang XU ; Xiaohong YANG
Publication Type:Journal Article
Keywords: Arteriosclerosis obliterans; Lower extremity; Atherectomy
From: Chinese Journal of Radiology 2011;45(5):477-480
CountryChina
Language:Chinese
Abstract: Objective To evaluate the clinical efficiency and seeurity of SilverHawk directional atherectomy device in treating arteriosclerosis obliterans of lower extremity.Methods Seyen patients with lower extremity ischemia were treated with SilverHawk directional atherectomy.The lesions length varied from 1.8 to 14.5 cm.Clinical symptoms(Fontaine classification)included 4 cases of grade Ⅱ b,1 case of grade Ⅲ,2 cases of grade Ⅳ.The ABI varied from 0.28 to 0.65.Patency was evaluated with color duplex sonography or CTA besides clinical examination during follow-up.Results Seven occlusive lesions were recanalizated successfully.The technical success(residual stenosis<30%)rate was 100%. Clinical symptoms were obviously improved or disappeared.The ABI varied from 0.82 to 1.18(P=0.002),and Fontaine classification included 6 cases of Ⅰ:1 case of Ⅱ a.Patency rate was 100%and the ABI varied from 0.75 to 1.14(P=0.938).Fontaine classifications keep consistent l-6 nonths after operation.Conclusion SilverHawk drectional atherectomy Was a safe and effective way for treatment of lower arteriosclerosis obliteran.