Endocrine Abstracts

We have previously described a series of patients who presented with clinical and biochemical features diagnostic of phaeochromocytoma but in whom catecholamine excess proved to be secondary to undiagnosed obstructive sleep apnoea (OSA). We describe here a prospective study of 30 patients presenting to the sleep clinic with OSA from whom 24 hour urine collections were analysed for catecholamines before and after treatment with continuous positive airways pressure (CPAP).<p...

Obstructive sleep apnoea (OSA)is associated with increased cardiovascular morbidity and mortality and is an independent risk factor for the development of hypertension. A recent study demonstrated elevated urinary catecholamine excretion in hypertensive males with OSA. However, we have recently observed the phenomenum whereby OSA can rarely induce catecholamine production of sufficient severity to mimic the clinical and biochemical presentation of phaeochromocytoma.<p clas...

Obstructive sleep apnoea (OSA)is associated with increased cardiovascular morbidity and mortality and is an independent risk factor for the development of hypertension. A recent study demonstrated elevated urinary catecholamine excretion in hypertensive males with OSA. However, we have recently observed the phenomenum whereby OSA can rarely induce catecholamine production of sufficient severity to mimic the clinical and biochemical presentation of phaeochromocytoma.<p clas...