Pheochromocytoma surgery
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ahmad Al Maradni, M.D. [2] Mohammed Abdelwahed M.D[3]
Overview
Surgery is the mainstay of treatment for pheochromocytoma. Adrenalectomy, laparoscopic transabdominal and retroperitoneal approaches have been used successfully for non-metastatic abdominal pheochromocytomas. The patient should receive glucocorticoid coverage in bilateral adrenalectomy.
Surgery
- Surgical resection of pheochromocytoma is the treatment of choice for benign localized tumor.
- Patients with unilateral pheochromocytoma should undergo unilateral adrenalectomy, patients with bilateral pheochromocytomas or who develop pheochromocytoma in their remaining adrenal gland should undergo cortical-sparing adrenalectomy.[1] It may also be necessary to perform a complete surgical resection of the affected adrenal gland.
Adrenalectomy:
- Laparoscopic transabdominal and retroperitoneal approaches have been used successfully for non-metastatic abdominal pheochromocytomas.[2]
- There are less complications associated with laparoscopic surgery than with open surgery. Catecholamine secretion falls to a normal level within a week.
- Major intraoperative complications include intraoperative tumor capsule rupture, hypertensive crisis, myocardial infarctions, or cerebrovascular hemorrhages. Hemodynamic instability after tumor resection is possible. Hypoglycemia can occur after tumor resection due to unopposed insulin effect after declining of catecholamines levels.[3]
- Severe hypotension can occur after removal of the gland due to decreased catecholamines level in blood and down-regulation of adrenergic receptors. It can be controlled by vasopressors induction.[4]
- Risk factors for complications during surgery include:
- High plasma norepinephrine concentration
- Larger tumor size
- Postural hypotension after α-blockade, and a mean arterial pressure above 100 mm Hg.
- The patient should receive glucocorticoid stress coverage in bilateral adrenalectomy.
References
- ↑ Lee JE, Curley SA, Gagel RF, Evans DB, Hickey RC (1996). "Cortical-sparing adrenalectomy for patients with bilateral pheochromocytoma". Surgery. 120 (6): 1064–70, discussion 1070-1. PMID 8957496.
- ↑ Nehs MA, Ruan DT (2011). "Minimally invasive adrenal surgery: an update". Curr Opin Endocrinol Diabetes Obes. 18 (3): 193–7. doi:10.1097/MED.0b013e32834693bf. PMID 21494137.
- ↑ Rafat C, Zinzindohoue F, Hernigou A, Hignette C, Favier J, Tenenbaum F; et al. (2014). "Peritoneal implantation of pheochromocytoma following tumor capsule rupture during surgery". J Clin Endocrinol Metab. 99 (12): E2681–5. doi:10.1210/jc.2014-1975. PMID 25188716.
- ↑ Flávio Rocha M, Faramarzi-Roques R, Tauzin-Fin P, Vallee V, Leitao de Vasconcelos PR, Ballanger P (2004). "Laparoscopic surgery for pheochromocytoma". Eur Urol. 45 (2): 226–32. PMID 14734011.