Coronary Vasospasm Associated with Hyperthyroidism
نویسندگان
چکیده
Acute myocardial ischemia is a rare and possibly life-threatening manifestation of hyperthyroidism. We describe a 48-year-old woman with severe coronary vasospasm associated with hyperthyroidism. The patient presented with chest pain and increasing shortness of breath for several days. Acute non-ST elevation myocardial infarction was diagnosed. Coronary angiography revealed diffuse vasoconstriction which was relieved by intracoronary nitroglycerin. Subsequently, she was diagnosed with hyperthyroidism and treated with antithyroid therapy and an oral calcium channel blocker. After restoration of euthyroidism, she remained free of chest pain. Our report reminds readers that severe coronary spasm might be sometimes associated with simultaneous hyperthyroidism, especially in patients without risk factors of atherosclerosis.
منابع مشابه
Severe coronary vasospasm associated with hyperthyroidism causing myocardial infarction.
A 48 year old woman presented with angina after an anterior myocardial infarction and was found to be hyperthyroid. Coronary angiography showed a stenosis of the left coronary os and a long, severe stenosis of the left anterior descending artery which was partially relieved by glyceryl trinitrate. Three months later, after radioactive iodine treatment had rendered her euthyroid, repeat coronary...
متن کاملA rare case of gestational thyrotoxicosis as a cause of acute myocardial infarction
Angina pectoris in pregnancy is unusual and Prinzmetal's angina is much rarer. It accounts for 2% of all cases of angina. It is caused by vasospasm, but the mechanism of spasm is unknown but has been linked with hyperthyroidism in some studies. Patients with thyrotoxicosis-induced acute myocardial infarction are unusual and almost all reported cases have been associated with Graves' disease. Hu...
متن کاملAmiodarone-induced destructive thyroiditis associated with coronary artery vasospasm and recurrent ventricular fibrillation.
A 55-year-old male on long-term amiodarone therapy presented with ischaemic chest pain and recurrent unwitnessed syncope. Interrogation of his internal cardiac defibrillator, which had been inserted 4 years earlier, revealed two episodes of ventricular fibrillation, the timing of which corresponded to his syncopal events. Severe spontaneous coronary artery vasospasm was observed on coronary ang...
متن کاملThyrotoxicosis Mimicking ST Elevation Myocardial Infarction
Hyperthyroidism is well known to be associated with cardiac disease. Delay in making the diagnosis and occurrence of complications are common and are associated with a worse outcome. A 54-year-old male, non-smoker, with no past medical history and no significant family history presented to our hospital with severe left sided chest pain, "crushing" in nature. Electrocardiogram showed ST-segment ...
متن کاملLeft Main Coronary Artery Spasm in a Hyperthyroid Patient with Suspected Acute Coronary Syndrome
The left main coronary artery (LMCA) vasospasm is rare. We report a suspected acute coronary syndrome patient with hyperthyroidism who had LMCA vasospasm. Coronary angiogram showed 60% stenosis at LMCA. After administering nitroglycerin, re-angiography showed no significant stenosis. Then we evaluated LMCA lesion using intravascular ultrasound (IVUS) showing no significant stenosis. We consider...
متن کامل