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A Case of Pheochromocytoma Presenting as Ventricular Tachycardia Storm / 대한내과학회지
Korean Journal of Medicine ; : 215-219, 2015.
Artigo em Coreano | WPRIM | ID: wpr-102980
ABSTRACT
A 35-year-old woman was admitted for recurrent palpitations and headache with cold sweats. No structural abnormality was detected via cardiac imaging studies. A standard 12-lead electrocardiogram (ECG) revealed sustained monomorphic ventricular tachycardia (VT). Propranolol (120 mg/day) was administered; however, the frequency and duration of VT episodes increased rapidly. A 24-hr ambulatory ECG revealed frequent, successive, premature ventricular beats; accelerated idioventricular rhythms; and VTs with various cycle lengths and QRS complex morphologies. ECG findings suggested that the observed ventricular arrhythmias were driven by accelerated automaticity as their main electrophysiological mechanism. Based on clinical manifestations and ECG findings, pheochromocytoma was suspected. Solitary left adrenal pheochromocytoma was diagnosed by endocrine and imaging studies. Instead of propranolol, oral doxazosin (8 mg/day) was administered, and symptoms and VT attacks were successfully suppressed. After surgical resection of the pheochromocytoma, clinical VT was not observed in response to the high-dose isoproterenol provocation test.
Assuntos

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Feocromocitoma / Arritmias Cardíacas / Propranolol / Suor / Ritmo Idioventricular Acelerado / Taquicardia Ventricular / Doxazossina / Complexos Ventriculares Prematuros / Eletrocardiografia / Cefaleia Limite: Adulto / Feminino / Humanos Idioma: Coreano Revista: Korean Journal of Medicine Ano de publicação: 2015 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Feocromocitoma / Arritmias Cardíacas / Propranolol / Suor / Ritmo Idioventricular Acelerado / Taquicardia Ventricular / Doxazossina / Complexos Ventriculares Prematuros / Eletrocardiografia / Cefaleia Limite: Adulto / Feminino / Humanos Idioma: Coreano Revista: Korean Journal of Medicine Ano de publicação: 2015 Tipo de documento: Artigo