Hemodynamic and Catecholamine Studies during Pheochromocytoma Resection under Enflurane Anesthesia

Inhalation anesthetics, particularly the halogenated hydrocarbons and cyclopropane, lower the threshold to the arrhythmogenic activity of catecholamines. This intemction is of concern during the resection of a pheochromocytoma when the surgically-induced release of large amounts of norepinephrine an