3D Volumetry and its Correlation Between Postoperative Gastric Volume and Excess Weight Loss After Sleeve Gastrectomy

Hanssen, Andrés; Plotnikov, Sergio; Acosta, Geylor; Núñez, José Rafael; Haddad, José; Rodriguez, Carmen; Petrucci, Claudia; Hanssen, Diego; Hanssen, Rafael A.

doi:10.1007/s11695-017-2927-8

Cited by 34 publications

(34 citation statements)

References 20 publications

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“…Weight regain is of special concern in bariatric patients and effective therapy necessitates an objective measurement of gastric volume. Concordantly, our results and the recent results of Hanssen et al [9] clearly demonstrate that SG volume plays a decisive role in weight management (initial weight loss, weight loss failure and possible weight regain). Weight regain is the most feared concern not only in bariatric patients.…”

Section: Discussionsupporting

confidence: 92%

“…3D-CT images reveal three-dimensional information, which is unattainable by alternative examination methods, and allows precise location of the anatomical structures of the upper GI tract. While shape and volume measurements of SG may be repeatedly assessed using this method, the optimal volume of SG or pouch in RYGB remains as yet undefined, but Hanssen et al [9] recently showed the benefit of a volume ≤ 100 mL [10] . The patients in our SG group had an average volume of 174.41 ± 59.36 mL at a reported rate of weight regain of 78.20%.…”

Section: Discussionmentioning

confidence: 99%

“…On the other hand, and as a worthwhile side-effect of the technique itself, 3D-CT is a useful and exclusive tool for accurate volume measurement. For example, with the aid of 3D-CT, Hanssen et al [9] demonstrated that initial sleeve volume ≥ 100 mL is significantly related to insufficient weight loss after bariatric surgery.…”

Section: Introductionmentioning

confidence: 99%

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Computed tomography-3D-volumetry: a valuable adjunctive diagnostic tool after bariatric surgery

Stier¹,

Parmar²,

Koschker³

et al. 2020

MIS

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Aim: After bariatric surgery, a variety of complaints may arise. Identification of the causes of such symptoms is often challenging due to the postoperatively modified anatomy. While standard examinations with upper endoscopy and upper gastrointestinal series might miss the three-dimensional anatomic nature of the problem, quantitative three-dimensional computed tomography volumetry (3D-CT) of the upper gastrointestinal tract offers a novel, adjunctive examination, revealing the detailed anatomy. The aim of this study was to analyse the clinical value of 3D-CT in post-bariatric patients. Methods: Prospective data of 279 patients, who underwent 3D-CT due to complications after different bariatric procedures, were retrospectively analysed. Directly before examination, the surgical-modified stomach was distended with an effervescent-powder. CT images were 3D-reconstructed and, further, gastric volume was calculated. Results: In total, 279 patients were examined. Time between surgery and examination was significantly different between Roux-en-Y gastric bypass (n = 168) (54.3 ± 38.6 months) and sleeve gastrectomy (n = 78) (27.8 ± 21.7 months) (P = 0.0001). Others, less numerous, but included procedures were one-anastomosis/mini gastric bypass (n = 11) , and dated procedures, such as the vertical banded gastrostomy. The examination allowed calculation of the gastric volume, and the 3D-reconstructions depicted accurately the pivotable anatomic details of the modified upper gastrointestinal tract with 360° view. As a robust result, patients with a higher gastric volume showed more weight regain after sleeve gastrectomy.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

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Computed tomography-3D-volumetry: a valuable adjunctive diagnostic tool after bariatric surgery

Stier¹,

Parmar²,

Koschker³

et al. 2020

MIS

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“…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%

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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Sleeve Gastrectomy Stenosis: Surgical Treatment

Himpens

2021

Laparoscopic Sleeve Gastrectomy

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3D Volumetry and its Correlation Between Postoperative Gastric Volume and Excess Weight Loss After Sleeve Gastrectomy

Abstract: 3D volumetry CT scans accurately estimate GV after SG. A significant relationship between GV and EWL 6 months after SG was established, seeming that GV ≥ 100 ml at 6 months of SG is associated with poor EWL.

Cited by 34 publications

References 20 publications

Computed tomography-3D-volumetry: a valuable adjunctive diagnostic tool after bariatric surgery

Computed tomography-3D-volumetry: a valuable adjunctive diagnostic tool after bariatric surgery

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

Sleeve Gastrectomy Stenosis: Surgical Treatment

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