09/28/2020
The size of the remnant stomach showed no positive impact on nutritional outcomes.
Abstract
Investigate the adaptation process of the alimentary tract after
distal gastrectomy and
understand the impact of
Remnant Stomach Volume (RSV) on recovery.
One year after gastrectomy,
Patients’ oral intake had increased,
the Remnant Stomach Volume (RSV) was decreased and
small bowel motility was INCREASED.
Patients with a larger Remnant Stomach Volume (RSV)
=> showed
=> no additional benefits regarding nutritional outcomes.
prospectively enrolled patients who underwent distal gastrectomy with
=> Billroth II reconstruction to treat gastric cancer
at a tertiary hospital cancer center between September 2009 and February 2012. Demographic data, diet questionnaires, computed tomography (CT), and contrast
fluoroscopy findings were collected.
Patients were divided into 2 groups according to the
RSV calculated using CT
=> gastric volume measurements
(large vs small).
=> The size of the remnant stomach showed no positive impact on nutritional outcomes.
Dietary habits and nutritional status were compared between the groups.
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3.5 Changes in the remnant stomach volume after gastrectomy
From the CT volumetry, the mean baseline gastric volume was 605 ± 276 mL. Six months after surgery, the mean gastric volume was 139 ± 81 mL, which decreased to 111 ± 64 mL 1 year after surgery (P < .01) and to 96 ± 54 mL 2 years after surgery (P = .07). This decrease was maintained until the 3rd year after surgery (96 ± 55 mL, P = .79) (Fig. 2E).
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3.6 Small vs large remnant stomach volume: diet configuration and nutrition status
According to the CT volumetric database,
=> patients were divided into 2 groups
(S group ≤110 mL vs
L group >110 mL)
based on the median value of the RSV (110 mL).
After allocation, the mean RSV was larger in the L group than in the S group
(LARGE = 195 mL vs SMALL = 90 mL, P < .01) (Fig. 6).
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Between the groups, there were
=> no differences regarding nutritional outcomes
=> (body weight change,
=> hemoglobin,
=> albumin,
=> cholesterol) or
diet configuration
=> (diet volume,
=> diet frequency,
=> time consumption per meal).
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Discussion:
identify the influence of
gastric volume on nutritional outcomes.
We compared each step of the alimentary tract at different time intervals in regard to anatomical and functional aspects and included a patient-oriented survey.
=> In our study,
=> remnant gastric volume **decreased over time**
and
=> small bowel motility **increased after gastrectomy.
Patients with a larger remnant gastric volume showed no additional benefits regarding nutritional outcomes. Based on these results, after gastrectomy, diet volume is recovered by the acceleration of small bowel motility, while the
=> Remnant Stomach Volume (RSV) has a **limited effect.** gastric emptying rate is associated with a decreased transit time of the small intestine
https://pubmed.ncbi.nlm.nih.gov/31593134/