La Revue de medecine interne · 2015
[Pseudo-pheochromocytoma due to iproniazid: A case report].
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Tréhout M, Fedrizzi S, Loggia G, Lecardeur L, Nathou C, Dollfus S
Аннотация
INTRODUCTION: Pheochromocytoma is suggested by the presence of severe and paroxysmal hypertension associated with hyperadrenergy clinical signs. If the diagnosis of pheochromocytoma is ruled out, a pseudo-pheochromocytoma should be considered. We report a clinical observation of pseudo-pheochromocytoma due to iproniazid, a non-selective irreversible monoamine oxidase (MAO) A and B inhibitor in a patient with bipolar disorder.
CASE REPORT: A 78-year-old Caucasian male patient treated by iproniazid was hospitalized for depressive relapse. After several episodes of syncopes related to orthostatic hypotension, the patient presented hypertensive crisis. Urinary normetanephrines were increased to twice the upper limit of the normal range. Iproniazid was discontinued. Patient hemodynamic was rapidly stabilized and sympathetic hypertonia diminished. The urinary measurements normalized within two months. The abdominal imaging eliminated an adrenal tumor.
CONCLUSION: Iproniazid could be responsible for severe irregular blood pressure associated with abnormal catecholamine metabolism (i.e. pseudo-pheochromocytoma).
CASE REPORT: A 78-year-old Caucasian male patient treated by iproniazid was hospitalized for depressive relapse. After several episodes of syncopes related to orthostatic hypotension, the patient presented hypertensive crisis. Urinary normetanephrines were increased to twice the upper limit of the normal range. Iproniazid was discontinued. Patient hemodynamic was rapidly stabilized and sympathetic hypertonia diminished. The urinary measurements normalized within two months. The abdominal imaging eliminated an adrenal tumor.
CONCLUSION: Iproniazid could be responsible for severe irregular blood pressure associated with abnormal catecholamine metabolism (i.e. pseudo-pheochromocytoma).