Postpartum pheochromocytoma-induced takotsubo syndrome

Area of Science:

• Cardiology
• Endocrinology
• Reproductive Medicine

Background:

• Takotsubo syndrome (TS), or stress-induced cardiomyopathy, presents with acute left ventricular dysfunction.
• Peripartum cardiomyopathy (PPCM) is a form of heart failure occurring in late pregnancy or early postpartum period.
• Pheochromocytoma is a rare adrenal tumor secreting catecholamines, potentially causing cardiovascular complications.

Purpose of the Study:

• To report a rare case of postpartum takotsubo syndrome.
• To investigate the underlying cause of recurrent sympathetic surges in a postpartum patient.
• To highlight the association between pheochromocytoma and takotsubo syndrome in the postpartum period.

Main Methods:

• Clinical presentation and initial management of a postpartum patient with acute dyspnea and hypotension.
• Diagnostic workup including echocardiography, coronary angiography, and biochemical tests (urine metanephrines).
• Surgical management (adrenalectomy) and histological confirmation of the adrenal mass.

Main Results:

• The patient initially presented with symptoms mimicking peripartum cardiomyopathy but showed rapid resolution.
• Echocardiography revealed reversible left ventricular dysfunction with apical ballooning, consistent with takotsubo syndrome.
• Subsequent investigations identified an adrenal pheochromocytoma, confirmed by elevated urine metanephrines and histology post-adrenalectomy.

Conclusions:

• This case illustrates a rare instance of postpartum pheochromocytoma-induced takotsubo syndrome.
• Pheochromocytoma should be considered in the differential diagnosis of postpartum takotsubo syndrome, especially with recurrent sympathetic symptoms.
• Timely diagnosis and management of pheochromocytoma are crucial to prevent severe cardiovascular events.