Myocardial dysfunction, pericarditis, arrhythmias and acute coronary syndromes (ACS) are reported as advers effect of 5-Fluorouracil (5-FU). A 43 year-old man admitted to hospital with a chest pain one hour. He had no history of cardiac disease, and also had no any cardiovasculer risk factors. The patient had history of colon carcinoma. One day ago, 5-FU was given as chemotherapy regimen at oncology department. There was ST segment elevation on anterior and inferior derivations. He was initially managed as an acute coronary syndrome and emergency coronary angiography was then performed and it was normal. While introvenous nitroglycerin, the chest pain disappeared and ECG elevation regressed. Cardiac markers were within the normal ranges. There was no any wall motion abnormality on echocardiography. He was accepted vasospastic angina according to 5-FU and discharged after one day. Consequently, after 5-FU therapy, acute coronary syndrome may become. Frequently, it is associated with vasospasm especially patients with no cardiac history, and it response to vasodilator therapy well.
Keywords: 5-Fluorouracil, coronary vasospasm, ECG