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Preoperative selective vs non-selective α-blockade in PPGL patients undergoing adrenalectomy.
Endocrine Connections 2017 November
PURPOSE: Preoperative preparation for adrenalectomy for pheochromocytomas and paragangliomas (PPGL) is universally recognized as necessary, while the optimal strategy remains controversial. Our aims were to increase intraoperative hemodynamic stability, expedite postoperative recovery, decrease side effects and reduce costs for patients with PPGL undergoing adrenalectomy.
METHODS: We identified 526 patients undergoing open adrenalectomy for PPGL in the West China Hospital of Sichuan University between May, 2007 and December, 2016. 149 patients received preoperative selective α-blockade with phenoxybenzamine, and 377 patients received non-selective α-blockade with prazosin, doxazosin or terazosin. There were no statistical differences between groups regarding preoperative patient and tumor characteristics. Operations were planned once hypertensive patients were well-controlled with blood pressure ≤130/85 mmHg. Intraoperatively, all patients received arterial blood pressure monitoring, and indwelling urinary catheters to record urine output. We recorded intraoperative hemodynamics, status in the postanesthesia or intensive care unit, postoperative recovery and complications.
RESULTS: Patients in the non-selective group showed a more significant decline in postoperative systolic blood pressure than the selective group ( P = 0.041). Also, patients in the non-selective group appeared to receive a long-term anti-hypertensive effect, especially for diastolic blood pressure ( P = 0.037), which was a novel finding, based on the current literature.
CONCLUSIONS: Our results confirmed that non-selective α-blockade produced a more significant anti-hypertensive effect than selective α-blockade. However, we found no significant difference in intraoperative hemodynamic instability, postoperative recovery and postoperative complications between groups.
METHODS: We identified 526 patients undergoing open adrenalectomy for PPGL in the West China Hospital of Sichuan University between May, 2007 and December, 2016. 149 patients received preoperative selective α-blockade with phenoxybenzamine, and 377 patients received non-selective α-blockade with prazosin, doxazosin or terazosin. There were no statistical differences between groups regarding preoperative patient and tumor characteristics. Operations were planned once hypertensive patients were well-controlled with blood pressure ≤130/85 mmHg. Intraoperatively, all patients received arterial blood pressure monitoring, and indwelling urinary catheters to record urine output. We recorded intraoperative hemodynamics, status in the postanesthesia or intensive care unit, postoperative recovery and complications.
RESULTS: Patients in the non-selective group showed a more significant decline in postoperative systolic blood pressure than the selective group ( P = 0.041). Also, patients in the non-selective group appeared to receive a long-term anti-hypertensive effect, especially for diastolic blood pressure ( P = 0.037), which was a novel finding, based on the current literature.
CONCLUSIONS: Our results confirmed that non-selective α-blockade produced a more significant anti-hypertensive effect than selective α-blockade. However, we found no significant difference in intraoperative hemodynamic instability, postoperative recovery and postoperative complications between groups.
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