• Hormuzdiyar H Dasenbrock, Sandra C Yan, Timothy R Smith, Pablo A Valdes, William B Gormley, Elizabeth B Claus, and Ian F Dunn.
• Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
• Neurosurgery. 2017 Apr 1; 80 (4): 551-562.

BackgroundAlthough readmission has become a common quality indicator, few national studies have examined this metric in patients undergoing cranial surgery.ObjectiveTo utilize the prospective National Surgical Quality Improvement Program 2011-2013 registry to evaluate the predictors of unplanned 30-d readmission and postdischarge mortality after cranial tumor resection.MethodsMultivariable logistic regression was applied to screen predictors, which included patient age, sex, tumor location and histology, American Society of Anesthesiologists class, functional status, comorbidities, and complications from the index hospitalization.ResultsOf the 9565 patients included, 10.7% (n = 1026) had an unplanned readmission. Independent predictors of unplanned readmission were male sex, infratentorial location, American Society of Anesthesiologists class 3 designation, dependent functional status, a bleeding disorder, and morbid obesity (all P ≤ .03). Readmission was not associated with operative time, length of hospitalization, discharge disposition, or complications from the index admission. The most common reasons for readmission were surgical site infections (17.0%), infectious complications (11.0%), venous thromboembolism (10.0%), and seizures (9.4%). The 30-d mortality rate was 3.2% (n = 367), of which the majority (69.7%, n = 223) occurred postdischarge. Independent predictors of postdischarge mortality were greater age, metastatic histology, dependent functional status, hypertension, discharge to institutional care, and postdischarge neurological or cardiopulmonary complications (all P < .05).ConclusionReadmissions were common after cranial tumor resection and often attributable to new postdischarge complications rather than exacerbations of complications from the initial hospitalization. Moreover, the majority of 30-d deaths occurred after discharge from the index hospitalization. The preponderance of postdischarge mortality and complications requiring readmission highlights the importance of posthospitalization management.Copyright © 2016 by the Congress of Neurological Surgeons

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