نتایج جستجو برای: coronary spasm
تعداد نتایج: 199701 فیلتر نتایج به سال:
The case of a patient with severe left main trunk disease is presented, in which spasm of the right coronary artery resulted in intraoperative myocardial ischemia and perioperative myocardial infarction. It is suggested that coronary spasm may be a cause of perioperative myocardial infarction, and has to be considered in case of unknown etiology.
BACKGROUND Coronary artery spasm may be the underlying mechanism in up to 10% of cases of acute coronary syndrome (ACS) and sudden cardiac death. Asian individuals exhibit a 3-times greater incidence of spasm than Caucasians; this is likely due to different types of mechanisms. Consequently, solid data is limited about the long-term prognosis in Caucasian patients presenting with ACS and/or out...
A 24-year-old male student had three myocardial infarctions, one prior to and two following the angiographic documentation of normal coronary arteries. A spontaneous episode of variant angina prompted repeat coronary angiography, during which intravenous ergonovine caused spasm of the left anterior descending coronary artery, transient ST-segment elevation, and ischemic chest pain; the previous...
To examine whether acute myocardial ischemia activates the coagulation system and platelet activation in the coronary circulation, we measured plasma levels of fibrinopeptide A and j3-thromboglobulin in the coronary sinus and the aortic root simultaneously in 15 patients with coronary spastic angina before and after the left coronary spasm induced by intracoronary injection of acetylcholine and...
OBJECTIVE To evaluate changes in coronary artery spasticity in patients with vasospastic angina who had been stable for years under continuous drug treatment. METHODS Follow up coronary angiography was performed under intracoronary ergonovine provocation in 27 well controlled patients with vasospastic angina and no organic stenosis; the tests were done > 24 months after the initial coronary a...
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