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Hemodynamic changes and catecholamine release during laparoscopic adrenalectomy for pheochromocytoma
J L Joris1, E E Hamoir, G M Hartstein
1Department of Anesthesiology and Intensive Care Medicine, University Hospital of Liège, Belgium. mlamy@chu.ulg.ac.be
Anesthesia and Analgesia
|January 23, 1999
Summary
Laparoscopic adrenalectomy for pheochromocytoma causes significant catecholamine release during pneumoperitoneum and tumor manipulation. Nicardipine infusion effectively managed these hemodynamic changes.
Area of Science:
- Anesthesiology
- Endocrinology
- Surgical Oncology
Background:
- Pheochromocytoma is a rare tumor causing catecholamine excess.
- Laparoscopic adrenalectomy is increasingly used but poses anesthetic challenges.
- Managing hemodynamic instability during this procedure is critical.
Purpose of the Study:
- To investigate hemodynamics and catecholamine levels during laparoscopic adrenalectomy for pheochromocytoma.
- To evaluate the efficacy of a specific anesthetic protocol in managing these changes.
Main Methods:
- Eight patients undergoing laparoscopic adrenalectomy for pheochromocytoma were studied.
- Anesthesia involved continuous sufentanil and isoflurane infusion.
- Hemodynamics and plasma catecholamines were monitored throughout surgery.
- Nicardipine infusion and atenolol boluses were used for hemodynamic control.
Main Results:
- Significant catecholamine release occurred during pneumoperitoneum and tumor manipulation.
- Cardiac output doubled in response to catecholamine release.
- Nicardipine infusion effectively controlled mean arterial pressure.
- Six patients required beta-adrenergic blockade with atenolol.
Conclusions:
- Laparoscopic adrenalectomy for pheochromocytoma triggers substantial catecholamine release.
- The anesthetic protocol, particularly nicardipine titration, successfully managed associated hemodynamic instability.
- Careful anesthetic management is essential for patients with pheochromocytoma undergoing laparoscopic adrenalectomy.