| Japanese |
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| Title | 慢性期心筋梗塞における梗塞責任冠動脈に対する経皮的冠動脈形成術 (PTCA) の有効性の検討 - 運動負荷心筋スキャンによる梗塞部心筋の経時的観察 - |
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| Subtitle | ≪原著≫ |
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| Authors | 千葉博*,***, 西村恒彦*, 植原敏勇*, 林田孝平*, 三谷勇雄*, 松尾剛志*, 土師一夫**, 住吉徹哉** |
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| Authors(kana) | |
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| Organization | *国立循環器病センター放射線診療部, **心臓内科, ***現耳原総合病院循環器内科 |
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| Journal | 核医学 |
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| Volume | 26 |
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| Number | 7 |
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| Page | 835-844 |
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| Year/Month | 1989/7 |
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| Article | 原著 |
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| Publisher | 日本核医学会 |
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| Abstract | 「要旨」運動負荷心筋スキャンを用いて, 慢性期心筋梗塞例における梗塞責任冠動脈に対するPTCAの有効性を検討した. 対象は一枝病変心筋梗塞29例(LAD 27例, LCX 1例, RCA 1例)である. PTCA前の運動負荷心筋スキャンの梗塞部再分布様式によりCR群(完全再分布) 3例, IR群(不完全再分布) 14例, PR群(周辺部再分布) 7例, NR群(再分布なし) 5例に分けた. CR群ではPTCA直後より梗塞部の残存虚血指標は改善したが, 梗塞領域指標の改善は少なかった. IR群, PR群は残存虚血, 梗塞領域いずれの指標も改善した. NR群は残存虚血指標は僅かに改善し, 梗塞領域指標も改善を認めたが, PTCA直後より3か月以降と徐々に改善した. このようにPTCA前の梗塞部の再分布様式によって, PTCA後の梗塞部の変化には違いを認めたが, 全体では梗塞領域, 残存虚血いずれの指標も縮小し, PTCAの有効性が確認された. |
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| Practice | 臨床医学：一般 |
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| Keywords | Percutaneous transluminal coronary angioplasty (PTCA), Stress thallium scan, Myocardial infarction, Redistribution, Myocardial viability. |
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| English |
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| Title | Usefulness of Coronary Angioplasty (PTCA) of the Infarct-Related Artery in the Patients with Prior Myocardial Infarction - Follow Up of Infarct Zone Pre-and Post-Angioplasty by Stress Thallium Scan - |
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| Subtitle | - Original Articles - |
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| Authors | Hiroshi CHIBA*,***, Tsunehiko NISHIMURA*, Toshiisa UEHARA*, Kouhei HAYASHIDA*, Isao MITANI*, Takeshi MATSUO*, Tetsuya SUMIYOSHI**, Kazuo HAZE** |
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| Authors(kana) | |
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| Organization | *Department of Radiology, **Department of Cardiology, National Cardiovascular Center, ***Department of Cardiology, Mimihara General Hospital |
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| Journal | The Japanese Journal of nuclear medicine |
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| Volume | 26 |
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| Number | 7 |
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| Page | 835-844 |
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| Year/Month | 1989/7 |
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| Article | Original article |
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| Publisher | THE JAPANESE SOCIETY OF NUCLEAR MEDICINE |
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| Abstract | [Summary] We studied the efficacy of coronary angioplasty (PTCA) of the infarct-related artery in 29 patients with prior myocardial infarction by stress thallium scan. Twenty-seven patients had anterior myocardial infarction (single LAD disease), one had inferior (single RCA disease) and one had posterior (single LCX disease). According to the stress-redistribution thallium scintigraphic finding before PTCA, the patients were classified in 4 groups; (A): three patients with complete redistribution. (B): fourteen patients with incomplete redistribution. (C): seven patients with partial redistribution. (D): five patients with no redistribution. After PTCA, the parameters of residual ischemia in the infarct area (%RD and Thallium ischemic score=TIS) were improved significantly but those of infarct size (RD %uptake and Defect Score=DS) were improved slightly in group A. In group B and C, %RD, TIS, RD %uptake and DS were all improved significantly. In group D, TIS was improved slightly and DS was improved slowly 3 months after PTCA. Group A had high probability of viable muscle and group D had high probability of scar at the infarct zone. Group B and C showed intermediate type between group A and D. The change of infarct area after PTCA was variable in 4 groups but both residual ischemia and infarct size decreased in all groups. Thus, PTCA of infarct-related coronary artery is useful even in the patients with prior myocardial infarction. |
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| Practice | Clinical medicine |
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| Keywords | Percutaneous transluminal coronary angioplasty (PTCA), Stress thallium scan, Myocardial infarction, Redistribution, Myocardial viability. |
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