title: Overnight hospital stay is not always necessary after uvulopalatopharyngoplasty.
abstract: OBJECTIVE
  To determine whether patients with obstructive sleep apnea who undergo uvulopalatopharyngoplasty (UPPP) have a significant incidence of postoperative complications that would justify overnight postoperative observation in the hospital.
  
  
  METHODS
  Part 1: review of published medical literature to determine incidence of postoperative complications. Part 2: retrospective review of 117 patients undergoing UPPP with or without additional procedures.
  
  
  METHODS
  A literature search for existing studies describing the postoperative complications after UPPP for obstructive sleep apnea was conducted. After this, the records of 117 patients who had undergone UPPP at a university-based medical center during a 5-year span were reviewed.
  
  
  RESULTS
  Respiratory events occur in 2% to 11% of cases. These include airway obstruction (e.g., laryngospasm), postobstructive pulmonary edema (POPE), and desaturation. Airway obstruction occurred in the immediate postoperative setting. POPE was rare and usually occurred within minutes after the conclusion of the surgical procedure. Desaturation could occur at any time, but the severity was usually equivalent to that found on preoperative sleep study. Hemorrhage occurred in 2% to 14% of cases and had a biphasic incidence, occurring either immediately postoperatively or several days after surgery. Depending on definition, hypertension was observed in between 2% and 70% of patients postoperatively. This was most commonly diagnosed and treated in the immediate postoperative setting. In most reports, arrhythmia and angina occurred in less than 1% of cases.
  
  
  CONCLUSIONS
  The majority of complications after UPPP with or without additional procedures occur within 1 to 2 hours after surgery. Postoperative oxygen desaturation is usually no worse than that that was observed on preoperative polysomnography findings. A 2 to 3 hour observation period may be suitable for patients after UPPP; if a patient experiences no complications and is maintaining adequate oxygenation and analgesia, same-day discharge from recovery room may be considered.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Boston University Medical Center, Boston, MA 02118, USA. Jeffrey.Spiegel@bmc.org
authors.forename: Jeffrey H
authors.initials: JH
authors.lastname: Spiegel
authors.forename: Tejas H
authors.initials: TH
authors.lastname: Raval
mesh_terms: D000556:Ambulatory Surgical Procedures; D006801:Humans; D007902:Length of Stay; D010160:Palate, Soft / Q000601:surgery*; D010614:Pharynx / Q000601:surgery*; D011183:Postoperative Complications; D020181:Sleep Apnea, Obstructive / Q000601:surgery*; D014609:Uvula / Q000601:surgery*