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Updated: May 26, 2026

Duodenal-Jejunal Bypass Surgery in Diet-Induced Obese Diabetic Mice
Published on: October 18, 2024
[Metabolic changes after morbid obesity surgery using the duodenal switch technique. Long term follow-up]
Antonio Vázquez Prado1, Antonio Vázquez Tarragón, Cristina Sancho Moya
1Servicio de Cirugía, Hospital General Universitario, Valencia, España. vprado.a@gmail.com
Introduction:
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.
Patients And 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.

