{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,3]],"date-time":"2026-05-03T14:45:50Z","timestamp":1777819550585,"version":"3.51.4"},"reference-count":29,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2007,4,1]],"date-time":"2007-04-01T00:00:00Z","timestamp":1175385600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Endovasc Ther"],"published-print":{"date-parts":[[2007,4]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To report the 12- and 24-month results after directional atherectomy (DA) of below-the-knee (BTK) arterial lesions with the SilverHawk device.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Forty-nine BTK lesions in 36 patients (58% men; mean age 70611 years) with peripheral occlusive disease of the lower limbs were treated with DA; 19 (53%) of the limbs were classified with Rutherford-Becker 4 or 5 ischemia. Target lesions were in the popliteal artery (n=6, 12%), tibioperoneal trunk (n=25, 51%), peroneal artery (n=10, 20%), anterior tibial artery (n=5, 10%), and posterior tibial artery (n=3, 6%). Nine (18%) lesions were located in a stent. Twelve lesions extended to 2 artery segments. The average degree of diameter stenosis was 89%\u00b110% (range 70%\u2013100%); there were 11 (22%) occlusions. The mean lesion length was 48\u00b128 mm.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Sixteen (33%) lesions were treated after predilation; 33 (67%) lesions were treated with primary DA. All but 1 (2%) lesion could be treated with DA. In 19 (39%) lesions, additional balloon angioplasty was performed, and 2 (4%) lesions required stent implantation as a result of dissection. The mean stenosis diameter after DA was 12%\u00b118% (range 0%\u2013100%). After additional therapy, the mean stenosis diameter was 8%\u00b19% (range 0%\u2013100%). A residual stenosis \u226430% was achieved in 48 (98%) lesions. The mean ankle-brachial index significantly increased from 0.48\u00b10.26 to 0.81\u00b10.32 (p&lt;0.05) before discharge and remained improved during follow-up. Primary and secondary patency rates were 67% and 91% after 1 year and 60% and 80% after 24 months. The 12-and 24-month cumulative event-free survival rates (primary patency) by Kaplan-Meier analysis were 58%\u00b18% and 46%\u00b19%; at the same time intervals, the cumulative survival rates (secondary patency) were 88%\u00b16% and 73%\u00b19%, respectively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>BTK lesions can be treated successfully and safely with DA. Midterm clinical results are encouraging.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/152660280701400216","type":"journal-article","created":{"date-parts":[[2015,3,20]],"date-time":"2015-03-20T10:23:04Z","timestamp":1426846984000},"page":"232-240","source":"Crossref","is-referenced-by-count":46,"title":["Two-Year Results after Directional Atherectomy of Infrapopliteal Arteries with the SilverHawk Device"],"prefix":"10.1177","volume":"14","author":[{"given":"Thomas","family":"Zeller","sequence":"first","affiliation":[{"name":"Department of Angiology, Heart Center Bad Krozingen, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sebastian","family":"Sixt","sequence":"additional","affiliation":[{"name":"Department of Angiology, Heart Center Bad Krozingen, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Uwe","family":"Schwarzw\u00e4lder","sequence":"additional","affiliation":[{"name":"Department of Angiology, Heart Center Bad 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