Japanese
TitlePTCAが心機能におよぼす影響
Subtitle原著
Authors大島茂, 岡本栄一, 磯部直樹, 土屋泰弘, 外山卓二, 内藤滋人, 星崎洋, 野上昭彦, 湯浅和男, 谷口興一
Authors(kana)
Organization群馬県立循環器病センター循環器内科
Journal循環制御
Volume17
Number3
Page374-378
Year/Month1996/
Article原著
Publisher日本循環制御医学会
Abstract「要旨」左前下行枝に有意狭窄を有する一枝病変症例89例について, 初回待機的PTCA前および3〜6ヵ月後の左室駆出率(LVEF), 局所短縮率(FS)を比較し, PTCAが心機能に及ぼす影響について検討した. PTCA後, 再狭窄(-)群ではLVEFが67.3%から70%(P<0.01), 前壁のFSが2.92%から3.39%(P<0.05)といずれも有意に増加したが, 再狭窄(+)群では改善は認められなかった. また, 心筋梗塞の既往を有する例ではPTCA後FSは1.86%から2.55%と有意に改善(P<0.05)したが, 既往のない例ではPTCA施行前からFSは良好であり, 有意な変化は認められなかった. 以上より, 心筋の収縮性が低下していてもviabilityが残っていれば, PTCAにより収縮性の改善が期待できると思われる.
Practice基礎医学・関連科学
KeywordsPTCA, Restenosis, Hibernation, LV function
English
TitleEffects of Percutaneous Transluminal Coronary Angioplasty on Global and Regional Myocardial Function
Subtitle
AuthorsShigeru Oshima, Eiichi Okamoto, Naoki Isobe, Yasuhiro Tsuchio, Takuji Toyama, Shigeto Naitoh, Hiroshi Hoshizaki, Akihiko Nogami, Kazuo Yuasa, Koichi Taniguchi
Authors(kana)
OrganizationGunma Prefectural Cardiovascular Center
JournalCirculation Control
Volume17
Number3
Page374-378
Year/Month1996/
ArticleOriginal article
PublisherJapan Society of Circulation Control
AbstractTo evaluate the effects of percutaneous transluminal coronary angioplasty (PTCA) on global and regional myocardial function, we studied 89 patients who underwent the first elective PTCA to the left anterior descending artery. Left ventricular function was measured from left ventriculography before and after PTCA. After PTCA, left ventricular ejection fraction (LVEF) and fractional shortening (FS) of the anterior wall significantly increased in the patients without restenosis. The improvement of FS after PTCA (from 1.86 % to 2.55 %;P<0.05) was not observed in the patients with history of anterior myocardial infarction (MI), although it was not observed in the patients with out anterior MI whose FS was normal before PTCA. In conclusion, these results indicate that reduced LV functiion may be improved by PTCA in MI patients, if myocardial viability remains in the area of MI and restenosis dose not develop. (Circ Cont 17:374〜378, 1996)
PracticeBasic medicine
KeywordsPTCA, Restenosis, Hibernation, LV function

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