title: Postoperative Complications and Readmission Rates Following Surgery for Cerebellopontine Angle Schwannomas.
abstract: To investigate the 30-day postoperative complication, readmission, and reoperation rates following surgery for cerebellopontine angle (CPA) schwannomas.
  
  
  
  Cross-sectional analysis.
  
  
  
  National surgical quality improvement program dataset (NSQIP) 2009 through 2013.
  
  
  
  All surgical cases with an International Classification of Diseases, 9th edition, Clinical Modification (ICD-9-CM) diagnosis code of 225.1, benign neoplasms of cranial nerves, and one of the following current procedural terminology (CPT) codes, were included: 61616, 61526, 61530, and 61520.
  
  
  
  Surgical resection as indicated by the CPT codes above.
  
  
  
  Demographics, comorbidities, 30-day postoperative complications, readmission rate, and reoperation rate.
  
  
  
  Overall, 404 cases were identified, of which 42.6% were men. The average age was 51 years. Comorbidities were present in 45.3%. NSQIP-tracked complications occurred in 9.7% of patients. Most common complications were wound infections including surgical-site infection and wound dehiscence (11 patients, 2.7%), sepsis (10 patients, 2.5%), blood loss (nine patients, 2.2%), and deep vein thrombosis (DVT; seven patients, 1.7%). Mortality occurred in four patients (1.0%). The complication rate was statistically higher in patients with comorbidities versus those without (10.2% versus 4.1%, p = 0.04). Patients with complications were more likely to undergo reoperation (2.5% with versus 4.1% without, p = 0.001). Unplanned readmissions occurred in 41 cases (10.1%) and reoperations occurred in 23 patients (5.7%).
  
  
  
  Most common NSQIP-tracked complications in excision of CPA neoplasms are infections, sepsis, blood loss, and deep vein thrombosis (DVT). Further, investigation of patients with unplanned readmission and reoperation are warranted. Neurotologists need to take an active role in the data to be gathered in the NSQIP database as it relates to vestibular schwannomas.
authors.affiliation: *Division of Neurotology and Skull Base Surgery, Department of Otolaryngology-Head and Neck Surgery †Department of Biomedical Engineering, University of California, Irvine, California.
authors.forename: Hossein
authors.initials: H
authors.lastname: Mahboubi
authors.forename: Yarah M
authors.initials: YM
authors.lastname: Haidar
authors.forename: Omid
authors.initials: O
authors.lastname: Moshtaghi
authors.forename: Kasra
authors.initials: K
authors.lastname: Ziai
authors.forename: Yaser
authors.initials: Y
authors.lastname: Ghavami
authors.forename: Marlon
authors.initials: M
authors.lastname: Maducdoc
authors.forename: Harrison W
authors.initials: HW
authors.lastname: Lin
authors.forename: Hamid R
authors.initials: HR
authors.lastname: Djalilian
mesh_terms: D000328:Adult; D000368:Aged; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009464:Neuroma, Acoustic / Q000601:surgery*; D019635:Neurosurgical Procedures / Q000009:adverse effects*; D010359:Patient Readmission / Q000706:statistics & numerical data; D011183:Postoperative Complications / Q000453:epidemiology* / Q000209:etiology; D058996:Quality Improvement; D012086:Reoperation / Q000706:statistics & numerical data; D012189:Retrospective Studies