Cardiac involvement in pheochromocytoma

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Abstract
We report the details of a 40-year-old farmer, a cigarette smoker, who was admitted with general malaise, nausea, vomiting, upper abdominal pain, with ST-elevation on ECG suggestive of an acute anterolateral myocardial infarction. He was treated with nitrates, heparin, beta-blockade and angiotensin-converting enzyme (ACE) inhibitors. Because of the presence of some blood while vomiting no thrombolysis was given and abdominal echography was performed. This revealed a nodular mass at the right adrenal gland. Urinary catecholamines and abdominal magnetic resonance imaging confirmed the suspected diagnosis of pheochromocytoma. Before adrenectomy, a coronary angiography under alpha blocker therapy was performed, which demonstrated no significant coronary artery disease, although the patient showed ST-elevations on ECG. Pathological examination of the adrenal tumor was compatible with a diagnosis of pheochromocytoma. Postoperatively urinary catecholamines dropped dramatically, and the ECG normalised slowly over time. After 8 months the patient is still well. Blood pressure is well controlled with no antihypertensive drugs and exercise testing shows no evidence of myocardial ischaemia.

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