Final answer:
Pheochromocytomas are tumors leading to high blood pressure due to excess catecholamines, managed by surgical removal and careful perioperative planning, including avoiding certain anesthetics, managing blood pressure, and being aware that BP typically falls after tumor removal.
Step-by-step explanation:
Aspects Related to Pheochromocytoma
Pheochromocytomas are tumors of the adrenal medulla that excessively produce catecholamines leading to hypertension. Understanding this condition encompasses several aspects:
- Treatment: Often involves surgical removal of the tumor. Before and after surgery, medication may be given to block the effects of excess catecholamines.
- Anesthetic agents to be avoided: Some anesthetics can provoke catecholamine release from the tumor, exacerbating hypertension. Therefore, agents with minimum cardiovascular effects are preferred.
- Intraoperative BP management: During surgery, maintaining stable blood pressure is critical. This involves using vasodilators or other antihypertensive agents and being prepared for rapid swings in BP.
- Typically, blood pressure falls after the tumor has been removed. This is due to the cessation of catecholamine secretion from the adrenal medulla.
Management of patients with pheochromocytoma requires careful perioperative planning, monitoring, and readiness to handle abrupt hemodynamic changes.