Long-term study of recurrent vasospastic angina using coronary angiograms during ergonovine provocation tests

Yukio Ozaki, Fumimaro Takatsu, Junichi Osugi, Munetaka Sugiishi, Masato Watarai, Takafumi Anno, Junji Toyama

研究成果: Article

17 引用 (Scopus)

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Chronologic changes of coronary spasm were examined by repeated ergonovine provocation tests during angiography. A total of 322 patients who had variant angina without severe atherosclerosis demonstrated a positive response to the first test. Ninety of these patients had recurrent variant anginal symptoms after an angina-free period of 38 ± 12 months (mean ± SD). Of these 90 patients, 76 (84%) had symptoms or electrocardiographic (ECG) findings similar to those of the first test. The initial 9 of these 76 patients underwent a second provocation test and showed coronary responses analogous to those on the first test. Of the 90 patients, 14 (16%) had different symptoms or ECG findings from those elicited at the first episode. All 14 patients again had a positive response to a second ergonovine test and the following angiographic changes were observed in the three major vessels between the two tests. Of the 21 vessels that had spasm on the first test, eight vessels (19%) did not have spasm on the second test. Of the 21 vessels that did not demonstrate spasm on the first test, 10 (24%) demonstrated spasm on the second test. In the present study it is concluded that the majority of patients with recurrent angina seemed to have consistency in the location of coronary spasm, while in some patients the fluctuation of coronary spasm was confirmed by two ergonovine provocation tests.

元の言語English
ページ(範囲)1191-1198
ページ数8
ジャーナルAmerican Heart Journal
123
発行部数5
DOI
出版物ステータスPublished - 05-1992
外部発表Yes

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All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

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