• David J Cote, Hormuz H Dasenbrock, Ivo S Muskens, Marike L D Broekman, Hasan A Zaidi, Ian F Dunn, Timothy R Smith, and Edward R Laws.
• Cushing Neurosurgical Outcomes Center, Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
• J. Am. Coll. Surg. 2017 May 1; 224 (5): 971-979.

BackgroundTranssphenoidal surgery is a common neurosurgical procedure for accessing the pituitary and anterior skull base, yet few multicenter analyses have evaluated outcomes after this procedure.Study DesignPatients undergoing transsphenoidal surgery from 2006 to 2015 were extracted from the American College of Surgeons NSQIP database. Logistic regression was used to identify predictors of 30-day complications.ResultsOf 1,240 patients included in this analysis, 6.9% experienced a major complication, and 9.4% experienced any complication within 30 days. Other adverse events included death in 0.7% and nonroutine hospital discharge in 5.3%. Most adverse events occurred within the first 2 weeks postoperatively; 82.9% of patients experienced their first complication during the initial hospital stay. Multivariable analysis demonstrated that predictors of hospital stay longer than 4 days included American Society of Anesthesiologists classification III to V (p = 0.015), insulin-dependent diabetes mellitus (p < 0.001), and operative time in the third and fourth quartiles (both p < 0.001). American Society of Anesthesiologists classification III to V and operative time in the fourth quartile were also predictors of any adverse event (p = 0.01 and p = 0.005, respectively). Among these patients, 3.7% underwent reoperation, the most common reason for which was postoperative cerebrospinal fluid leak (63.6%). Readmission occurred after 8.5% of cases at a median of 11.0 days post-discharge. The most common cause of readmission was hyponatremia (29.5%), followed by delayed postoperative cerebrospinal fluid leak (16.0%).ConclusionsOverall rates of adverse events in patients undergoing transsphenoidal surgery are relatively low, and most occur before discharge from the hospital. Post-discharge complications associated with transsphenoidal surgery include deep vein thrombosis, pulmonary embolism, and urinary tract infection. Delayed postoperative cerebrospinal fluid leak is the major cause of reoperation, and hyponatremia is the major cause of readmission.Copyright © 2017 American College of Surgeons. Published by Elsevier Inc. All rights reserved.

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