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KMID : 0374920040250010041
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Inje Medical Journal
2004 Volume.25 No. 1 p.41 ~ p.49
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Experience with the Tsunami coronary stent immediate and six-month angiographic results
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Yi Seong-Yoon
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Abstract
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The Tsunami stent is balloon expandable, stainless steel, tubular coronary stent whose design is based on a number of radial, diamond shaped cells joined by double connector. The aim of this prospective observational study was to examine the procedural, in-hospital, and long term clinical and angiographic outcomes of patients undergoing Tsunami stent. Thirty-nine consecutive unselected patients were treated by means of the implantation of forty-one Tsunami stents in forty-one coronary lesions. Most of the patients (89.8%) had unstable angina or acute myocardial infarction. The baseline lesion morphology was complex in 75.5% of cases, and the mean lesion length was 15.2 3.8 mm. The procedural success rate was 100%. Mean percentage diameter of the stenosis decreased after the intervention from 75.2 12.2% to 4.8 4.6%. The in-hospital major adverse cardiac event rate was 2.5% including one cardiac death. During the six-month follow-up, there was one more cardiac death and four subjects (8.1%) underwent target vessel revascularization. The six-month event-free survival rate was 87.1%. The angiographic restenosis rate was 11.8%: a focal or limited pattern (class Ⅰor Ⅱ) was found in 25% of cases, whereas the remaining 75% had a proliferative morphology (class Ⅲ or Ⅳ). In conclusion, this study indicates the good clinical and angiographic performance of the Tsunami stent system in consecutive unselected patients.
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KEYWORD
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Tsunami stent, Coronary intervention
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