Radiographic Measurement of Gastric Remnant Volume After Laparoscopic Sleeve Gastrectomy: Assessment of Reproducibility and Correlation with Weight Loss

Abstract Background As a restrictive procedure, laparoscopic sleeve gastrectomy (LSG) relies primarily on the reduction of gastric volume. It has been suggested that an immediate postoperative gastric remnant volume (GRV) may influence long-term results of LSG; however, there are no consensus in this matter. The aim of this study was to assess the reproducibility of different radiographic methods of GRV calculation and evaluate their correlation with the weight loss (WL) after surgery. Methods This retrospective study evaluated 174 patients who underwent LSG in the period from 2014 to 2017. Using UGI, GRV was measured with 3 different mathematical methods by 2 radiologists. Intraobserver and interobserver calculations were made. Correlation between GRV and WL were estimated with calculations percentage of total weight loss (%TWL) and percentage of excess weight loss (%EWL) after 1, 3, 6, 12, 18, and 24 months postoperatively. Results During analysis of intraobserver similarities, the results of ICC calculation showed that reproducibility was good to excellent for all GRV calculation methods. The intraobserver reproducibility for Reader I was highest for cylinder and truncated cone formula and for Reader II for ellipsoid formula. The interobserver reproducibility was highest for ellipsoid formula. Regarding correlation between GRV and WL, significant negative correlation has been shown on the 12th month after LSG in %TWL and %EWL for every method of GRV calculation, most important for ellipsoid formula (%TWL – r(X,Y) = -0.335, p < 0.001 and %EWL – r(X,Y) = -0.373, p < 0.001). Conclusion Radiographic methods of GRV calculation are characterized by good reproducibility and correlate with the postoperative WL. Graphical Abstract

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Comment on: resected gastric volume has no influence on early weight loss after laparoscopic sleeve gastrectomy

Surgery for Obesity and Related Diseases ◽

10.1016/j.soard.2017.11.027 ◽

2018 ◽

Vol 14 (2) ◽

pp. 135-137

Author(s):

Andrea M. Pakula ◽

Matthew J. Martin

Keyword(s):

Weight Loss ◽

Sleeve Gastrectomy ◽

Laparoscopic Sleeve Gastrectomy ◽

Gastric Volume ◽

Early Weight Loss

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Impact of Resected Gastric Volume on Postoperative Weight Loss After Laparoscopic Sleeve Gastrectomy for Morbid Obesity

Case Medical Research ◽

10.31525/ct1-nct03938025 ◽

2019 ◽

Author(s):

Keyword(s):

Morbid Obesity ◽

Weight Loss ◽

Sleeve Gastrectomy ◽

Laparoscopic Sleeve Gastrectomy ◽

Gastric Volume ◽

Postoperative Weight Loss

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Relationship between the resected stomach volume and early postoperative weight loss following laparoscopic sleeve gastrectomy

International Surgery Journal ◽

10.18203/2349-2902.isj20181098 ◽

2018 ◽

Vol 5 (4) ◽

pp. 1180

Author(s):

Mohammed Abd Allah Salman ◽

Mostafa Elshazly ◽

Amr Ali Ragab ◽

Tarek Osama Hegazy

Keyword(s):

Weight Loss ◽

Sleeve Gastrectomy ◽

Laparoscopic Sleeve Gastrectomy ◽

Weight Reduction ◽

Gastric Volume ◽

Secondary Outcome ◽

Mean Deviation ◽

Morbidly Obese ◽

Resected Stomach ◽

Stomach Volume

Background: The aim of the study was evaluation of the effect of the resected gastric volume (RGV) on weight loss after laparoscopic sleeve gastrectomy (LSG).Methods: This prospective study included 40 morbidly obese patients undergoing LSG. Multi Detector Computed Tomography (MDCT) was used to measure preoperative stomach volume and sleeve volume. The actual RGV was measured after surgery. The primary outcome measure was the relation between RGV and percentage of excess body weight loss (%EBWL) after 3 and 6 months. The secondary outcome was early postoperative complications.Results: The mean preoperative BMI was 43.5±4.3 kg/m2. The actual RGV was substantially correlated with that estimated by CT (r=0.996, p<0.001). The former was significantly larger with a mean deviation of 17.6 cc (95%CI: 12.2-23.0 kg). The actual and CT-estimated RGV were positively correlated with% EBWL after 3 months (r=0.361, p=0.022 and r=0.471, p<0.001, respectively) and after 6 months (r=0.466, p=0.002 and r=0.553, p<0.001, respectively). Percentage of volume reduction was positively correlated with weight reduction after 3 and 6 months (r=0.0.525, p=0.001 and r=0.564, p<0.001, respectively).Conclusions: The resected gastric volume during LSG was significantly correlated with weight reduction after 3 and 6 months of surgery. Sleeve volume was not correlated with early weight reduction. MDCT is a reliable method to measure gastric volume before and after surgery.

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Long-term Results on Weight Loss and Diabetes Remission after Laparoscopic Sleeve Gastrectomy for A Morbidly Obese Chinese Population

Obesity Surgery ◽

10.1007/s11695-015-1628-4 ◽

2015 ◽

Vol 25 (10) ◽

pp. 1901-1908 ◽

Cited By ~ 37

Author(s):

Shirley Yuk-Wah Liu ◽

Simon Kin-Hung Wong ◽

Candice Chuen-Hing Lam ◽

Man Yee Yung ◽

Alice Pik-Shan Kong ◽

...

Keyword(s):

Weight Loss ◽

Sleeve Gastrectomy ◽

Laparoscopic Sleeve Gastrectomy ◽

Chinese Population ◽

Diabetes Remission ◽

Long Term Results ◽

Morbidly Obese

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Decision Regret after Laparoscopic Sleeve Gastrectomy—5 Years’ Perspective

Obesity Surgery ◽

10.1007/s11695-021-05480-0 ◽

2021 ◽

Author(s):

Katarzyna Bartosiak ◽

Michał R. Janik ◽

Piotr Kowalewski ◽

Maciej Walędziak ◽

Andrzej Kwiatkowski

Keyword(s):

Body Mass Index ◽

Weight Loss ◽

Sleeve Gastrectomy ◽

Laparoscopic Sleeve Gastrectomy ◽

Body Mass ◽

Negative Correlation ◽

Telephone Survey ◽

Significant Negative Correlation ◽

Decision Regret ◽

The Mean

Abstract Introduction Patient's satisfaction after weight loss surgery is in the research spotlight. However, there are still no quantitative data regarding whether patients regret their decision to undergo laparoscopic sleeve gastrectomy (SG). Objectives The present study aimed to evaluate whether patients regret their decision to undergo SG 5 years after surgery. The secondary objective was to identify whether weight loss and a higher quality of life (QoL) score correlate with the regret expressed by patients. Setting Military Hospital, Poland Methods A telephone survey was carried out among patients 5 years after surgery. Patient satisfaction regarding their decision to undergo SG was assessed using the Decision Regret Scale. QoL scores were determined using the 36-Item Short Form Survey (SF-36). Results One hundred and four patients who answered a full telephone survey were enrolled in the study. Change in body mass index (ΔBMI) was 12.31±6.2, excess body mass index loss (%EBMIL) was 55.45%±25.52%, and percent total weight loss (%TWL) was 25.20%±11.7%. At the 5-year postoperative telephone survey, the mean general health score was 50.96±14.0 and the mean regret score was 32.33±13.24 (range, 25–85). A statistically significant negative correlation was observed between %EBMIL and regret score (r=−0.435; p<0.001). There was a significant negative association between regret score and energy/fatigue QoL (r=−0.205; p=0.040). Only eight patients (7.69%) scored >50 on the Decision Regret Scale, which was considered to represent overall regret for their decision. Conclusion Our study suggests that, in general, patients did not regret their decision to undergo SG. Key Points The majority of patients did not regret their decision to undergo SG. There was a statistically significant negative correlation between weight loss and patients’ feelings of regret. Energy/fatigue QoL was the strongest correlate of whether patients regretted their decision to undergo SG. Graphical Abstract

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Correlation Between Preoperative Gastric Volume and Weight Loss After Laparoscopic Sleeve Gastrectomy

International Journal of General Medicine ◽

10.2147/ijgm.s335368 ◽

2021 ◽

Vol Volume 14 ◽

pp. 8135-8140

Author(s):

Mohamed AbdAlla Salman ◽

Mostafa Elshazli ◽

Mohamed Shaaban ◽

Mohamed Moustafa Esmat ◽

Ahmed Salman ◽

...

Keyword(s):

Weight Loss ◽

Sleeve Gastrectomy ◽

Laparoscopic Sleeve Gastrectomy ◽

Gastric Volume

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Residual Gastric Volume Estimated with a New Radiological Volumetric Model: Relationship with Weight Loss After Laparoscopic Sleeve Gastrectomy

Obesity Surgery ◽

10.1007/s11695-013-1113-x ◽

2013 ◽

Vol 24 (3) ◽

pp. 359-363 ◽

Cited By ~ 39

Author(s):

Pablo Vidal ◽

José Manuel Ramón ◽

Marcos Busto ◽

Gerardo Domínguez-Vega ◽

Albert Goday ◽

...

Keyword(s):

Weight Loss ◽

Sleeve Gastrectomy ◽

Laparoscopic Sleeve Gastrectomy ◽

Gastric Volume ◽

Residual Gastric Volume ◽

Volumetric Model

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Impact of Resected Gastric Volume on Postoperative Weight Loss after Laparoscopic Sleeve Gastrectomy

Gastroenterology Research and Practice ◽

10.1155/2019/3742075 ◽

2019 ◽

Vol 2019 ◽

pp. 1-5 ◽

Cited By ~ 1

Author(s):

Stefano D’Ugo ◽

Vittoria Bellato ◽

Emanuela Bianciardi ◽

Paolo Gentileschi

Keyword(s):

Weight Loss ◽

Sleeve Gastrectomy ◽

Laparoscopic Sleeve Gastrectomy ◽

Potential Role ◽

Gastric Volume ◽

Specimen Size ◽

Postoperative Weight Loss ◽

The Mean

Among the bariatric surgery community, it has recently emerged the idea of a possible association between resected gastric volume (RGV) and weight loss after laparoscopic sleeve gastrectomy (LSG). If the size of the sleeve depends on the bougie caliber, the resected volume of the stomach remains something which is not possible to standardize. The aim of the study was to investigate a possible relationship between RGV and weight loss after LSG. We developed a mathematical method to calculate the RGV, based on the specimen size removed during LSG. Ninety-one patients (63 females and 28 males) affected by morbid obesity were included in the study. They underwent LSG between 2014 and 2016. Mean preoperative BMI was 45±6.4. At 1 year after LSG, the mean BMI was 30±5.3 and the EWL% was 65±20.2. The statistical analysis of RGV, BMI, and EWL% at 1-year follow-up did not find any correlation between the volume of stomach removed and the weight loss after LSG. Further studies in the future should clarify the potential role of RGV during LSG. This trial is registered with ClinicalTrials.gov NCT03938025.

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