Sánchez-Pernaute Andrés, Rodríguez Ricardo, Rubio Miguel Angel, Pérez-Aguirre Elia, Crespo Sofía Cárdenas, Valderrama Oscar Cano, Talavera Pablo, Méndez Ramiro, Díez-Valladares Luis, Torres Antonio
Department of Surgery, Hospital Clínico San Carlos, Madrid, Spain.
Obes Surg. 2007 Sep;17(9):1178-82. doi: 10.1007/s11695-007-9199-7.
Bariatric operations may have a restrictive and a malabsorptive component. The restrictive component is considered key for short-term weight loss. However, there are important volume discrepancies between gastric reservoirs in different bariatric surgical techniques, which questions the real meaning of the restrictive part of the operation. We have investigated the relationship between residual gastric volume after sleeve gastrectomy in duodenal switch (DS) and weight loss over the first postoperative year.
14 patients submitted to a modified DS and one patient submitted to a sleeve gastrectomy were studied. All patients had an abdominal CT performed between the third and the ninth postoperative month to measure residual gastric volume. Gastric tube volume was correlated to early postoperative weight loss.
Mean excess BMI loss was 75% at 12 months. Mean gastric tube volume was 208 cc. Gastric volume was not related to preoperative weight or BMI; instead, it was directly related to patient's height. There was no statistical relation between gastric volume and weight loss at 3, 6, 9 or 12 months after the operation.
After DS, gastric tube volume is not directly related to weight changes. Other factors could have influence on intake restriction, such as gastric tube compliance or different mechanisms of satiety induction, because no differences in weight loss were observed between narrow tubes and wider ones, despite important variations in volume.
减肥手术可能具有限制和吸收不良的成分。限制成分被认为是短期体重减轻的关键。然而，不同减肥手术技术中胃储器的容量存在重要差异，这对手术限制部分的真正意义提出了质疑。我们研究了十二指肠转位术（DS）中袖状胃切除术后残余胃容量与术后第一年体重减轻之间的关系。
对14例行改良DS手术的患者和1例行袖状胃切除术的患者进行了研究。所有患者在术后第3至9个月期间进行了腹部CT检查，以测量残余胃容量。胃管容量与术后早期体重减轻相关。
12个月时平均超重BMI降低了75%。平均胃管容量为208立方厘米。胃容量与术前体重或BMI无关；相反，它与患者身高直接相关。术后3、6、9或12个月时胃容量与体重减轻之间无统计学关系。
DS术后，胃管容量与体重变化无直接关系。其他因素可能会影响摄入量限制，如胃管顺应性或不同的饱腹感诱导机制，因为尽管胃管容量存在重要差异，但细胃管和粗胃管之间在体重减轻方面未观察到差异。
