• Takeshi Iyonaga, Toshihiro Ichiki, Takanori Watanabe, Seigo Masuda, Mitsutaka Yamamoto, Yutaka Akatsuka, and Yuji Taira.
• Department of Cardiology, Harasanshin Hospital, Fukuoka, Japan.
• J Cardiol Cases. 2015 Oct 1; 12 (4): 106-109.

AbstractKounis syndrome, which is known as allergic angina and allergic myocardial infarction today, was described as the coexistence of acute coronary syndrome with allergic reactions in 1991 by Kounis and Zavras. We report a case of a 79-year-old man with hypertension, hepatocellular carcinoma (HCC), and no allergic history. He had received transcatheter arterial chemoembolization (TACE) for treatment of HCC five times without allergic reactions. At the sixth time of TACE, he presented an anaphylactic reaction such as systemic erythema and severe arterial hypotension. Simultaneously, he complained of anterior chest pain and electrocardiogram showed significant ST segment elevation in inferior leads, indicating inferior myocardial infarction. Emergency coronary angiography, however, did not demonstrate any organic stenoses or occluded lesions of the coronary arteries. We made the diagnosis of Kounis syndrome associated with TACE. Although Kounis syndrome is a rare condition, physicians should be aware of possible co-occurrence of anaphylactic reactions and acute coronary syndrome. .

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