Surgical resection of pheochromocytoma is associated with a high risk of intraoperative hemodynamic instability owing to abrupt changes in tumoral catecholamine secretion. A study by Bruynzeel et al.

The symptoms of pheochromocytoma depend on whether catecholamine secretion is persistent or intermittent and whether the predominant hormone is norepinephrine or epinephrine—in this patient it ...

Catecholamines, which are grouped as dopamine, adrenaline and noradrenaline are pumped out when you feel threatened with both physical and emotional stress. The brain, nervous system and adrenals ...