Assessment of the Correlation Between Preoperative and Immediate Postoperative Gastric Volume and Weight Loss After Sleeve Gastrectomy Using Computed Tomography Volumetry

Elbanna, Hosam Ghazy; Emile, Sameh Hany; El-Hawary, Galal El-Sayed; Abdelsalam, Noha; Zaytoun, Hossam Abdelhafiz; Elkaffas, Haitham; Ghanem, Ahmed N

doi:10.1007/s00268-018-4749-9

Cited by 28 publications

(24 citation statements)

References 34 publications

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“…With regard to the timing of CT volumetry following LSG, there was again marked variability, with time of assessment ranging from 7 days to 36 months. A significant correlation was reported by Elbanna et al, where the RGV was measured within 7 days of LSG and correlated with EWL% at 6 months 14 . CT volumetry was performed at 3 months postoperatively in three studies 9,13,16 with two of these studies showing good correlation between RGV at 3 months with the EWL% either at 6 months 13 or 18 months 16 .…”

Section: Discussionmentioning

confidence: 59%

“…Moreover, the success rate of LSG was only 14.8% when the RGV was more than 225 mL. Elbanna et al 14 found that the mean EWL was 61.4 ± 6.1%and 37.8 ± 4.8% in patients with a RGV of <100 mL and RGV >200 mL, respectively. Disse et al 20 divided patients into the groups namely: “patients with gastric dilatation” and “patients without gastric dilatation” based on the evolution of RGV from 3 to 12 months.…”

Section: Resultsmentioning

confidence: 99%

“…In this review, we found extremely variable estimates of correlation between RGV and weight loss, with several studies reporting a significant correlation 13‐16 to one reporting weak correlation 19 . Two studies reported that the resected gastric volume rather than the RGV has a significant correlation with excess weight loss 9,10 .…”

Section: Discussionmentioning

confidence: 95%

“…We found records of 428 patients from the 10 included studies studying the correlation of RGV after sleeve gastrectomy with weight loss. Table 1 shows the important characteristics of these studies 9,10,13‐20 . The mean age and BMI of the patients were 38.57 years and 44.99 kg/m 2 , respectively.…”

Section: Resultsmentioning

confidence: 99%

“…There was however significant heterogeneity throughout the included studies in timing of reporting of excess weight loss and protocol of CT volumetry for RGV. Four studies divided patients into two cohorts based on the RGV and reported Excess weight loss (EWL) of the respective cohorts 13‐16 . All of these studies used a different cut off for the RGV to divide patients into two cohorts.…”

Section: Methodsmentioning

confidence: 99%

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Correlation of weight loss with residual gastric volume on computerized tomography in patients undergoing sleeve gastrectomy: A systematic review

et al. 2020

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Summary Laparoscopic Sleeve gastrectomy (LSG) is the most commonly performed bariatric surgical procedure worldwide. There is wide variation however in post‐operative weight loss on long term follow‐up, and residual gastric volume (RGV) is believed to be an important variable. Multiple studies have correlated RGV as assessed by Computerized Tomography volumetry with excess weight loss (EWL%) following LSG, but definite consensus is lacking. This article systematically reviews the published studies in English literature to ascertain whether any correlation exists between the RGV and EWL% following LSG. Ten studies were included in this review, and significant differences were noted in the technique of RGV assessment, and timing of RGV and EWL% assessment. Five studies found a statistically significant correlation between the RGV and EWL%. One study found a correlation which did not reach statistical significance. Two additional studies reported that the resected volume rather than RGV correlated with the EWL%. Meta‐analysis of studies reporting correlation between RGV and EWL% showed that up to 26.3% (95% CI: 5.1%‐56.1%) of variability in EWL% can be explained by variations in RGV. A lower RGV is likely to result in a better post‐operative weight loss following LSG. There is need for standardization of technique and timing of RGV assessment.

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Section: Discussionmentioning

confidence: 59%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Correlation of weight loss with residual gastric volume on computerized tomography in patients undergoing sleeve gastrectomy: A systematic review

et al. 2020

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Geometry of Sleeve Gastrectomy Measured by 3D CT Versus Weight Loss: Preliminary Analysis

et al. 2020

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Background The size of the remnant stomach with respect to weight loss failure after laparoscopic sleeve gastrectomy (LSG) remains controversial. This study aimed to evaluate the impact of the actual size and volume of the remnant stomach, as measured by three‐dimensional computed tomography (3D‐CT) volumetry, on weight loss after LSG. Methods The clinical outcomes of 52 patients who underwent LSG between October 2008 and February 2019 were assessed. Weight metrics were recorded at 1, 3, and 6 months and 1 year postoperatively. 3D‐CT volumetry was performed 1 year postoperatively, and the total remnant stomach volume (TSV), proximal stomach volume (PSV), antral stomach volume (ASV), and the distance between the pylorus and the distal edge of staple line (DPS) were measured. The relationship between the weight metrics and aforementioned factors was analyzed. Results Of the 52 patients who underwent LSG, 40 patients participated in this study. The average body mass index preoperatively was 38.3 ± 5.1 kg/m2, and the average percentage of total weight loss (%TWL) 1 year after LSG was 26.6 ± 9.3%. The average TSV, PSV, ASV, and DPS were 123.2 ± 60.3 ml, 73.4 ± 37.2 ml, 49.8 ± 30.3 ml, and 59.9 ± 18.5 mm, respectively. The DPS (r = − 0.394, p = 0.012) and ASV (r = − 0.356, p = 0.024) were correlated with %TWL 1 year postoperatively. Conclusions The actual DPS and ASV measured by 3D‐CT affected weight loss after LSG. 3D‐CT may be useful for the immediate identification of factors affecting insufficient weight loss in patients; this may, in turn, aid in the implementation of early intervention treatments.

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Sleeve gastrectomy morphology and long-term weight-loss and gastroesophageal reflux disease outcomes

et al. 2023

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Assessment of the Correlation Between Preoperative and Immediate Postoperative Gastric Volume and Weight Loss After Sleeve Gastrectomy Using Computed Tomography Volumetry

Abstract: The preoperative volume of the stomach was positively correlated with baseline BMI, but not correlated with %EWL. The size of the remaining gastric pouch and the percentage of the resected stomach had significant impact on %EWL after LSG.

Cited by 28 publications

References 34 publications

Correlation of weight loss with residual gastric volume on computerized tomography in patients undergoing sleeve gastrectomy: A systematic review

Correlation of weight loss with residual gastric volume on computerized tomography in patients undergoing sleeve gastrectomy: A systematic review

Geometry of Sleeve Gastrectomy Measured by 3D CT Versus Weight Loss: Preliminary Analysis

Sleeve gastrectomy morphology and long-term weight-loss and gastroesophageal reflux disease outcomes

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