• J Neurosurg Sci · Feb 2017

    Randomized Controlled Trial

    Dexmedetomidine could enhance surgical satisfaction in trans-sphenoidal resection of pituitary adenoma.

    • Alireza Salimi, Guive Sharifi, Houshang Bahrani, Seyed A Mohajerani, Alireza Jafari, Farhad Safari, Maryam Jalessi, Alireza Mirkheshti, and Kamran Mottaghi.
    • Department of Anesthesiology, Shahid Beheshti University of Medical Sciences, Loghman Hospital, Tehran, Iran - k_mottaghi@sbmu.ac.ir.
    • J Neurosurg Sci. 2017 Feb 1; 61 (1): 46-52.

    BackgroundExcessive bleeding is an unwanted complication of trans-sphenoidal resection of pituitary adenoma due to increases in intracranial pressure (ICP) and hemodynamic instability. Dexmedetomidine (Dex) anα2-agonists is the drug of choice in intensive care units (ICU) and cardiac surgeries to control abrupt changes in hemodynamic. Severe cardiovascular responses occur during trans-sphenoidal resection (TSR) of the pituitary adenoma despite adequate depth of anesthesia. The aim of this paper was to determine the effect of Dexmedetomidine on bleeding as primary outcome, and surgeon's satisfaction and hemodynamic stability as secondary outcomes in patients undergoing trans-sphenoidal resection of pituitary adenoma.MethodsTotal numbers of 60 patients between 18-65 years old and candidate for elective trans-sphenoidal resection of pituitary adenoma were randomLy allocated to two groups; Dexmedetomidine infusion (0.6µg/kg/hour) or normal saline infusion. Mean arterial pressure (MAP), heart rate (HR), dose of hypnotics and narcotics during surgery, bleeding, and surgeon's satisfaction were recorded.ResultsPropofol maintenance dose (µg/kg/min) and total Fentanyl use (µg) were significantly lower in Dex group compare to control group (P=0.01 and 0.003, respectively). Total bleeding amount during operation in Dex group was significantly lower than control group (P=0.012). Surgeon's satisfaction was significantly higher in Dex group at the end of surgery. MAP and heart rate throughout surgery were significantly lower in Dex group compare to control group (P=0.001).ConclusionsDexmedetomidine infusion (0.6µg/kg/hour) could reduce bleeding and provide surgeon's satisfaction during trans-sphenoidal resection of pituitary adenoma.

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