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Surg Endosc. 2016 Apr;30(4):1559-63. doi: 10.1007/s00464-015-4377-5. Epub 2015 Jul 7.

Relationship between gastric pouch and weight loss after laparoscopic sleeve gastrectomy.

Author information

1
University Radiology, Department of Medicine, University Hospital of Padua, 2 Via Giustiniani, 35128, Padua, PD, Italy.
2
University Radiology, Department of Medicine, University Hospital of Padua, 2 Via Giustiniani, 35128, Padua, PD, Italy. giovi.romanucci@libero.it.
3
Center of Excellence for Bariatric and Metabolic Surgery, University Hospital of Padua, 2 Via Giustiniani, 35128, Padua, PD, Italy.

Abstract

BACKGROUND:

Laparoscopic sleeve gastrectomy (LSG) is considered safe and effective even as conversion procedure after primary bariatric operations. The correlation between gastric pouch volumes and patients weight loss remains unclear.

METHODS:

To assess a correlation between the gastric remnant size and the weight loss, we reviewed 49 consecutive barium swallow UGS performed at our institute from August 2012 through May 2014 in LSG patients with symptoms and/or unsatisfactory weight loss. The anteroposterior (AP), laterolateral (LL) and vertical (CC) diameters of the gastric pouch were measured to calculate the volume by the formula of the ellipsoid (AP × LL × CC × 0.5). Patients were divided in two groups: group 1 without gastric pouch (n = 36) and group 2 with gastric pouch (n = 13). Correlation between pouch volume and weight loss data was calculated with t Student's and Fisher tests to compare the percent excess body mass index (BMI) and percent excess body mass loss (EBL) between two groups, and P < 0.05 was considered statistically significant.

RESULTS:

The mean percent EBL was 26.54 ± 11.02 and 27.12 ± 12.35 kg/m(2) in groups with and without pouch, respectively. The mean volume of the pouch after LSG was 17.13 ± 21.56 mm(3). Pouch volume, when present, was not significantly correlated to weight loss (P = 0.88 95% CI, CL 19.88-33.20 group 2; CL 22.94-31.30 group 1).

CONCLUSIONS:

No statistical correlation was found between the volume of the gastric pouch and weight loss (percent EBL) after LSG in symptomatic or with unsatisfactory weight loss patients.

KEYWORDS:

Bariatric surgery; Gastric fundus; Gastric pouch; Laparoscopic sleeve gastrectomy; Obesity; Weight loss

PMID:
26150226
DOI:
10.1007/s00464-015-4377-5
[Indexed for MEDLINE]

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