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Intracoronary Administration of Isosorbide Dinitrate Induced Severely Slow Flow and Transient ST-Segment ElevationSecond Department of Internal Medicine, University of Occupational and Environmental Health School of Medicine, Japan, wajinn@ med.uoeh-u.ac.jp
Second Department of Internal Medicine, University of Occupational and Environmental Health School of Medicine, Japan Nitroglycerin is one of the most widely used drugs in the treatment of angina. However, nitroglycerin fails to relieve angina in patients with syndrome X who have microvessel dysfunction. Microvessel function is impaired in several diseases. In this article, the authors report that despite normal coronary angiograms at control, intracoronary administration of isosorbide dinitrate induced severe coronary slow flow and transient ST-segment elevation with mild chest pain in a patient with congestive heart failure. The authors speculated that functional stenosis and a delay in the dilatation of microvessels less than 100 µm in diameter because of their dysfunction resulted in a severely slow flow after intracoronary administration of isosorbide dinitrate.
Key Words: coronary slow flow microvessel coronary flow reserve ST elevation ISDN
This version was published on July
1, 2008 Angiology, Vol. 59, No. 3,
379-381 (2008) |
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