Key result
Bidirectional VT signals acute hemorrhagic necrosis of pheochromocytoma in cardiogenic shock.
Why the study?
Pheochromocytoma can cause severe cardiovascular complications, and acute hemorrhagic necrosis presenting with rare manifestations like bidirectional ventricular tachycardia poses a lethal diagnostic challenge.
Bidirectional ventricular tachycardia can serve as a crucial diagnostic clue for acute hemorrhagic necrosis of a pheochromocytoma presenting with cardiogenic shock.
Bidirectional VT may signal pheochromocytoma necrosis in cardiogenic shock; this case leaves its diagnostic utility open.
Background Pheochromocytoma is associated with serious cardiovascular complications resulting from the effect of catecholamines, such as ventricular arrhythmias, cardiomyopathy with left ventricular dysfunction, and cardiogenic shock. Bidirectional ventricular tachycardia is a rare but potentially fatal form of polymorphic tachycardia associated with elevated sympathetic tone. Case summary A 27-year-old Caucasian woman was admitted to the intensive care unit with cardiogenic shock. The electrocardiogram showed bidirectional ventricular tachycardia, and the transthoracic echocardiogram showed a dilated left ventricle with severe systolic dysfunction. Computed tomography revealed an adrenal mass with hemorrhage, which was confirmed by abdominal magnetic resonance imaging. The patient underwent a laparoscopic right adrenalectomy after preoperative preparation with alpha-beta blockade, with subsequent histopathological confirmation of the diagnosis. Discussion The acute presentation of hemorrhagic necrosis of a pheochromocytoma is a rare and potentially lethal condition. Its diagnosis can be challenging, especially in cases with atypical manifestations. However, the presence of bidirectional ventricular tachycardia might serve as a crucial guide for its identification. Early recognition of this condition is essential, as it significantly impacts the patient's prognosis.
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López-Pena et al. (2025) studied this question. Bidirectional ventricular tachycardia was identified as a key indicator of acute hemorrhagic necrosis of pheochromocytoma in a 27-year-old woman with cardiogenic shock.
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