Reminder of important clinical lesson
Capecitabine induced acute coronary syndrome
Great Western Hospital, Marlborough Road, Swindon, SN3 6BB, UK
Correspondence to:
Lisa Tze Mei Yung, tml_yung{at}hotmail.com
Capecitabine is an oral chemotherapeutic agent recommended by the National Institute for Clinical Excellence as first line treatment for metastatic bowel cancer and second line for breast cancer. With the increasing prevalence and diagnosis of these common malignancies, it is essential that physicians are made aware of the rare, but potentially fatal, cardiac effects of capecitabine. This case report demonstrates a typical presentation of suspected acute coronary syndrome with associated ECG changes in a patient who had started capecitabine 2 days before admission. His troponin was mildly elevated and his ECGs resolved on discontinuation of the drug, but a positive exercise tolerance test precipitated coronary angiography; which was essentially normal, as was his echocardiogram and computed tomography scan. Previous literature has highlighted potential cardiac complications of a similar chemotherapeutic agent 5-fluorouracil, which is the active metabolite present in capecitabine. The possible presentations, complications and clinical management are discussed in this case report.
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