title: Effect of parenteral nutrition on nutrition status after bariatric surgery for morbid obesity.
abstract: BACKGROUND
  To evaluate the influence of nutrition support (parenteral nutrition [PN] vs no parenteral nutrition [nPN]) on nutrition outcome, complications, and hospital stay after bariatric surgery (BS).
  
  
  METHODS
  Sixty-seven consecutive BS patients (17 gastric bypass and 50 biliopancreatic diversion). The first 38 received PN and the next 29 did not (nPN) during the fasting postoperative (PO) period. In both groups, after fasting, a progressive oral diet was introduced. Data related to nutrition status, perioperative complications, and postsurgical hospital stay were compared.
  
  
  RESULTS
  Sixty-seven patients (58 women), mean age 39.4 +/- 11.0 years, body mass index (BMI) 50.7 +/- 6.1 kg/m(2), were included. Thirty-eight patients received PN during 8.7 +/- 2.6 days. Ingestion was initiated at a median 8 PO days in PN vs 6.5 PO days in nPN (p < .04). No significant differences between groups were found in age, final fasting serum albumin (SA), and 30 days postoperative SA, with a similar weight loss. Nonsignificant differences were found in non-catheter-related infectious complications, being mainly urinary tract infections. Catheter-related infections were present in 21.1% in the PN group and 13.8% in the nPN (p = .33). Median hospital stay after surgery was 14 +/- 10 days in PN and 12 +/- 10 days in nPN (p = .003).
  
  
  CONCLUSIONS
  (1) Nutrition status after BS PO and 30 days postsurgery was no different between PN and nPN. (2) Postsurgery hospital stay was significantly decreased in the nPN group, without a greater incidence of complications. (3) According to nutrition outcome, PN seems unnecessary at the perioperative period in BS unless there are other postsurgical complications.
authors.affiliation: Endocrinology and Nutrition, Hospital do Meixoeiro, Complejo Hospitalario Universitario de Vigo, Spain. miguel.angel.martinez.olmos@sergas.es
authors.forename: M A Martínez
authors.initials: MA
authors.lastname: Olmos
authors.forename: M J Martínez
authors.initials: MJ
authors.lastname: Vázquez
authors.forename: M J Morales
authors.initials: MJ
authors.lastname: Gorría
authors.forename: P Parada
authors.initials: PP
authors.lastname: González
authors.forename: I Otero
authors.initials: IO
authors.lastname: Martínez
authors.forename: I Maruri
authors.initials: IM
authors.lastname: Chimeno
authors.forename: E Pena
authors.initials: EP
authors.lastname: González
authors.forename: M T Inaraja
authors.initials: MT
authors.lastname: Bobo
authors.forename: J E Casal
authors.initials: JE
authors.lastname: Núñez
mesh_terms: D000328:Adult; D050110:Bariatric Surgery / Q000379:methods*; D015992:Body Mass Index; D005260:Female; D006801:Humans; D007902:Length of Stay; D008297:Male; D009752:Nutritional Status; D009767:Obesity, Morbid / Q000601:surgery / Q000628:therapy*; D010288:Parenteral Nutrition / Q000009:adverse effects / Q000379:methods*; D019990:Perioperative Care; D011183:Postoperative Complications; D012709:Serum Albumin / Q000032:analysis; D016896:Treatment Outcome
chemical_list: D012709:Serum Albumin