JaLCDOI 10.18926/AMO/30893
フルテキストURL fulltext.pdf
著者 Kusachi, Shozo| Iwasaki, Kohichirou| Nishiyama, Osamu| Ueda, Minoru| Kita, Toshimasa| Hata, Takato| Taniguchi, Gyou| Watanabe, Hirofumi| Hina, Kazuyoshi| Saito, Daiji| Tsuji, Takao| Haraoka, Shoichi|
抄録 <p>We studied the factors which may induce acute high grade restenosis in emergency percutaneous transluminal coronary angioplasty (PTCA). PTCA was attempted in 50 patients with acute myocardial infarction, and the balloon catheter passed successfully across the occlusion site in 47 (94%) of the patients. These 47 patients were analyzed. &#34;Acute restenosis&#34; was defined as a lesion which was revascularized to less than 50% luminal reduction narrowed again to more than 75% luminal reduction 5 min after the balloon inflation. Univariate and multivariate analyses were used for determining factors which significantly influenced acute restenosis. The incidence of at least one restenosis episode was 45%. Multiple regression analysis selected 5 factors associated significantly with an increased rate of acute restenosis: 1) angiographic evidence of dissection, 2) lesion in the right coronary artery (RCA), 3) lack of or insufficient administration of thrombolytic agent preceding PTCA, 4) curved lesion and 5) relatively small balloon/artery diameter ratio. Acute restenosis correlated significantly with late reocclusion. This study indicates that it is important to administer a thrombolytic agent prior to emergency PTCA, and to use an adequately sized balloon to the artery when the acute restenosis occurs by using relatively smaller sized balloon. The present data also demonstrated that patients with RCA and a curved lesion have a relatively high risk of acute restenosis. This study indicates how patients with relatively high risk of acute restenosis may be identified.</p>
キーワード emergency coronary angioplasty restenosis acute myocardial infarction multivariate analysis
Amo Type Article
発行日 1989-02
出版物タイトル Acta Medica Okayama
43巻
1号
出版者 Okayama University Medical School
開始ページ 55
終了ページ 63
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 2524153
Web of Sience KeyUT A1989T938500007