Author/Authors :
Wang, De-zhao Capital Medical University - Tiantan Hospital - Department of Cardiology, China , Hu, Hong-yu Capital Medical University - Tiantan Hospital - Department of Cardiology, China , Fu, Qiang Capital Medical University - Tiantan Hospital - Department of Cardiology, China , Chen, Wei Capital Medical University - Tiantan Hospital - Department of Cardiology, China , Hua, Xu Capital Medical University - Tiantan Hospital - Department of Cardiology, China , Chen, Bu-xing Capital Medical University - Tiantan Hospital - Department of Cardiology, China
Abstract :
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 considered that it was a LMCA vasospasm and may be assosiated with hyperthyroid state. After anti-thyroid and anti-spasm treatment, chest pain subsided. In conclusion, hyperthyroidism induced coronary hypersensitivity may contribute to LMCA vasospasm as seen in this case. IVUS may be useful to identify coronary vasospasm.
Keywords :
Coronary angiography , Hyperthyroidism , Intravascular ultrasound , Left main coronary artery , Vasospasm
