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Chūō-ku, Japan

Suga T.,Gunma Chuo HospitalGunma | Akuzawa N.,Gunma Chuo HospitalGunma | Hatori T.,Gunma Chuo HospitalGunma | Imai K.,Gunma Chuo HospitalGunma | And 2 more authors.
International Journal of Clinical and Experimental Medicine | Year: 2015

Secondary cardiac cancer most frequently originates from primary lung cancer and most commonly occurs in the pericardium. On electrocardiographic examination, patients with secondary cardiac cancer occasionally show ST segment elevation that mimics acute coronary syndrome, despite the absence of coronary artery occlusion. We herein describe a rare case of secondary cardiac cancer that presented with ST segment elevation and review the literature regarding ST segment elevation caused by secondary cardiac cancer. A 73-year-old Japanese woman was admitted to the hospital with chest pain. Electrocardiography showed abnormal ST segment elevation in the precordial and lateral leads, suggestive of ST-elevation myocardial infarction. Emergency coronary angiography showed occlusion of the distal left anterior descending coronary artery (LAD), and plain old balloon angioplasty of the LAD was performed. The ST segment elevation initially resolved after angioplasty, but recurred after 7 days. Contrast-enhanced chest computed tomography showed primary lung cancer in the left lower lobe, pericardial metastasis, and myocardial metastasis in the intraventricular septum and posterolateral wall of the left ventricle. Histopathological examination of the lung cancer was not performed. Patients with ST segment elevation due to secondary cardiac cancer may have symptoms and electrocardiographic changes mimicking anteroseptal or lateral infarction without the development of abnormal Q waves. These findings are frequently associated with posterolateral or anteroseptal invasion by primary lung cancer and may indicate a poor prognosis. In conclusion, physicians should be aware that secondary cardiac cancer may present with symptoms and ST segment elevation mimicking acute coronary syndrome, indicating a poor prognosis. © 2015, E-Century Publishing Corporation. All right reserved. Source

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