title: Prevalence and Risk Factors for Bariatric Surgery Readmissions: Findings From 130,007 Admissions in the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program.
abstract: OBJECTIVE
  To evaluate readmissions following laparoscopic adjustable gastric banding (LAGB), laparoscopic sleeve gastrectomy (LSG), and laparoscopic Roux-en-Y gastric bypass (LRYGB).
  
  
  BACKGROUND
  Few studies have evaluated national readmission rates for primary bariatric surgery with national, bariatric-specific data.
  
  
  METHODS
  Patients undergoing primary LAGB, LSG, or LRYGB from January 1, 2014 to December 31, 2014, at 698 centers were identified based upon Current Procedural Terminology codes. The primary outcome was 30-day readmission from date of initial operation.
  
  
  RESULTS
  A total of 130,007 patients who underwent primary bariatric surgery were identified: 7378 LAGB (5.7%), 80,646 LSG (62.0%), and 41,983 LRYGB (32.3%). A total of 5663 (4.4%) patients were readmitted within 30 days for all causes. Patients undergoing LAGB had the lowest related readmission rate of 1.4%, followed by LSG (2.8%), and LRYGB (4.9%). Of patients who had a complication, 17.9% (n = 785) were readmitted, whereas those without readmission had a complication 1.9% of the time (P < 0.001). The most common cause of a related readmission was nausea, vomiting, fluid, electrolyte, and nutritional depletion (35.4%), followed by abdominal pain (13.5%), anastomotic leak (6.4%), and bleeding (5.8%), accounting for more than 61% of readmissions. When compared with LAGB, LSG, and LRYGB had significantly higher rates of readmission (LSG: odds ratio 1.89; 95% confidence interval 1.52-2.33; LRYGB: odds ratio 3.06; 95% confidence interval 2.46-3.81).
  
  
  CONCLUSIONS
  National bariatric readmissions after primary procedures were closely associated with complications, varied based on the type of procedure, and were most commonly due to nausea, vomiting, electrolyte, and nutritional depletion.
authors.affiliation: Division of Research and Optimal Patient Care, American College of Surgeons, Chicago, IL.|Department of Surgery, Loyola University Chicago Stritch School of Medicine, Maywood, IL.
authors.forename: Elizabeth R
authors.initials: ER
authors.lastname: Berger
authors.affiliation: Division of Research and Optimal Patient Care, American College of Surgeons, Chicago, IL.
authors.forename: Kristopher M
authors.initials: KM
authors.lastname: Huffman
authors.affiliation: Division of Research and Optimal Patient Care, American College of Surgeons, Chicago, IL.
authors.forename: Teresa
authors.initials: T
authors.lastname: Fraker
authors.affiliation: Department of Surgery, Geisinger Health Systems, Danville, PA.
authors.forename: Anthony T
authors.initials: AT
authors.lastname: Petrick
authors.affiliation: Department of Surgery, Cleveland Clinic, Cleveland, OH.
authors.forename: Stacy A
authors.initials: SA
authors.lastname: Brethauer
authors.affiliation: Division of Research and Optimal Patient Care, American College of Surgeons, Chicago, IL.|Department of Surgery, Washington University in St Louis, St Louis, MO.|Center for Health Policy and the Olin Business School, Washington University in St Louis, St Louis, MO.|John Cochran Veterans Affairs Medical Center, St Louis, MO.|BJC Healthcare, St Louis, MO.
authors.forename: Bruce L
authors.initials: BL
authors.lastname: Hall
authors.affiliation: Division of Research and Optimal Patient Care, American College of Surgeons, Chicago, IL.|Department of Surgery, University of California, Los Angeles, CA.|David Geffen School of Medicine, Los Angeles, CA.|VA Greater Los Angeles Healthcare System, Los Angeles, CA.
authors.forename: Clifford Y
authors.initials: CY
authors.lastname: Ko
authors.affiliation: Department of Surgery, Stanford University, Stanford, CA.
authors.forename: John M
authors.initials: JM
authors.lastname: Morton
mesh_terms: D000293:Adolescent; D000328:Adult; D050110:Bariatric Surgery / Q000009:adverse effects*; D016001:Confidence Intervals; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D010535:Laparoscopy / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000601:surgery*; D010359:Patient Readmission / Q000639:trends*; D011183:Postoperative Complications / Q000453:epidemiology*; D015995:Prevalence; D011379:Prognosis; D058996:Quality Improvement; D012189:Retrospective Studies; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors; D013997:Time Factors; D014481:United States / Q000453:epidemiology; D055815:Young Adult