ArticleCancer diagnosis & prognosis
Remnant Stomach Influx Reduces Esophageal Reflux and Malnutrition After Proximal Gastrectomy With Double Tract Reconstruction.
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Abstract
Background/Aim: Remnant stomach influx (RSI) from the anastomotic jejunal-remnant stomach, a physiological food passage, develops after proximal gastrectomy with double-tract reconstruction (PGDT). Sometimes, food passes into the jejunal-loop (JL). We investigated the association of the food passage route in PGDT (RSI/JL) with postoperative esophageal reflux and malnutrition. Patients and Methods: We retrospectively collected data for 50 patients with upper-third gastric cancer and esophagogastric junction cancer with PGDT. Using one-year postoperative fluoroscopy findings, 40 propensity score-matched patients were classified into RSI and JL groups (n=20/group), respectively. The groups were comparatively evaluated for: clinicopathological characteristics [age, sex, body mass index (BMI), visceral fat index (VFI), subcutaneous fat index (SFI), skeletal muscle index, pathological stage]; perioperative factors [approach, postoperative complications ≥ Clavien-Dindo Grade 2, postoperative food passage); and esophageal reflux (reflux esophagitis frequency ≥ Grade A, degree of reflux based on fluoroscopy findings). Univariate and multivariate analysis identified predictive factors for post-operative malnutrition in all 50 patients. Results: After propensity score matching, grade of reflux esophagitis and degree of reflux was significantly lower (p=0.014, p<0.001) in the RSI versus JL group. The RSI group showed significantly attenuated percent decrease in BMI, VFI, and SFI (p=0.049, p=0.002, p=0.006). Multivariate analysis identified food passage route (JL) and pathological stage as predictive factors for postoperative malnutrition. Conclusion: Postoperative esophageal reflux and malnutrition were attenuated by food passage mainly via the RSI after PGDT. Improved jejunal-remnant stomach is requisite to ensure satisfactory remnant stomach influx.
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