title: [Metabolic changes after morbid obesity surgery using the duodenal switch technique. Long term follow-up].
abstract: BACKGROUND
  The duodenal switch (DS) technique is considered to be complex surgery with a series of metabolic complications due to its malabsorptive character. For these reasons, it has not been extensively used by bariatric surgeons. Despite this, we consider it to be a suitable technique for the grossly obese.
  
  
  METHODS
  A retrospective study was performed on 110 patients with morbid obesity operated on using the DS technique and who were followed up for a minimum period of four years after surgery. We evaluated the weight loss, the outcomes of the comorbidities, and the metabolic complications.
  
  
  RESULTS
  The loss of excess weight was greater than 50% in 75% of the patients after 12 months follow up. The comorbidities suffered by 68 patients (75.5%) were completely resolved. The most frequent metabolic complications were iron (Fe) deficiency and an increased parathyroid hormone (PTH).
  
  
  CONCLUSIONS
  DS is a safe and effective technique for the treatment of morbid obesity, with good weight loss results, a high percentage of remission of the comorbidities, a similar morbidity and mortality to other techniques, and with correctable nutritional changes, and thus acceptable.
authors.affiliation: Servicio de Cirugía, Hospital General Universitario, Valencia, España. vprado.a@gmail.com
authors.forename: Antonio
authors.initials: A
authors.lastname: Vázquez Prado
authors.forename: Antonio
authors.initials: A
authors.lastname: Vázquez Tarragón
authors.forename: Cristina
authors.initials: C
authors.lastname: Sancho Moya
authors.forename: Alí
authors.initials: A
authors.lastname: Ismail Mahmoud
authors.forename: Leonardo
authors.initials: L
authors.lastname: De Tursi Rispoli
authors.forename: Marcos
authors.initials: M
authors.lastname: Bruna Esteban
authors.forename: Isabel Fabra
authors.initials: IF
authors.lastname: Cabrera
authors.forename: Miriam
authors.initials: M
authors.lastname: Cantos Pallarés
authors.forename: Claudia
authors.initials: C
authors.lastname: Mulas Fernández
authors.forename: José
authors.initials: J
authors.lastname: Puche Plá
mesh_terms: D000328:Adult; D000368:Aged; D050110:Bariatric Surgery / Q000009:adverse effects* / Q000379:methods*; D004386:Duodenum / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008659:Metabolic Diseases / Q000453:epidemiology / Q000209:etiology*; D008875:Middle Aged; D009767:Obesity, Morbid / Q000601:surgery*; D011446:Prospective Studies; D012189:Retrospective Studies; D013997:Time Factors; D055815:Young Adult