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Effects of anti-vasospastic agents in Japanese patients with dilated cardiomyopathy and coronary vasospasm.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nishi, Isao Ilda, Keiji Kawano, Satoru Masumi, Tomoko Fumikura, Yuko Ohtsuka, Sadanori Watanabe, Shigeyuki Yamaguchi, Iwao |
| Copyright Year | 2002 |
| Abstract | The pathogenesis of dilated cardiomyopathy (DCM) is unknown, but clinical evidence suggests that coronary vasospasm is associated with the development of DCM in some cases. In the present study, we aimed to clarify the prevalence of coronary vasospasm in patients with DCM, the characteristics of patients with DCM and coronary vasospasm, and the effects of anti-vasospastic agents on patients with DCM and coronary vasospasm. This study included 18 consecutive patients with DCM who underwent cardiac catheterization with ergonovine provocation testing. The patient was diagnosed as having coronary vasospasm if ergonovine induced coronary vasoconstriction > or = 75% diameter narrowing was observed compared to the diameter after nitroglycerin administration. Six (33%) patients were found to have coronary vasospasm and anti-vasospastic agents were added after the cardiac catheterization. The prevalence of atrial fibrillation in the patients with DCM and coronary vasospasm was greater than that in DCM without coronary vasospasm [67% vs 8% (P<0.05)]. The left ventricular end-diastolic dimension decreased from 61 mm (56/64) to 55 mm (53/56) (median, 25th/75th percentile, P<0.05) and the left ventricular ejection fraction increased from 36% (32/40) to 47% (46/48) (median, 25th/ 75th percentile, P<0.05) after the administration of anti-vasospastic agents and 4 of the 6 patients improved symptomatically. Therefore, ergonovine provocation testing is useful in identifying patients with DCM and coronary vasospasm, in whom cardiac performance is expected to be improved with anti-vasospastic agent therapy. DCM patients with atrial fibrillation may be a clue for identifying patients with coronary vasospasm. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.jstage.jst.go.jp/article/jhj/43/4/43_4_333/_pdf |
| PubMed reference number | 12227709v1 |
| Volume Number | 43 |
| Issue Number | 4 |
| Journal | Japanese heart journal |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Atrial Fibrillation Atrial arrhythmia Cardiomyopathies Cardiomyopathy, Dilated Coronary Artery Vasospasm Diameter (qualifier value) Diastole Ejection fraction (procedure) Ergonovine Heart Atrium Nitroglycerin Patients Vascular constriction (function) Vasospasm, Intracranial percentile |
| Content Type | Text |
| Resource Type | Article |
