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Computed tomography–based gastric volumetry for morbid obesity to assess weight loss and fatty liver change

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Title: Computed tomography–based gastric volumetry for morbid obesity to assess weight loss and fatty liver change
Authors: Hsin-Yu Chen, Po-Jen Yang, Po-Chu Lee, Po-Han Chuang, Yung-Hsuan Yang, Wan-Ting Chiu, Chih-Horng Wu
Source: Journal of the Formosan Medical Association, Vol 123, Iss 12, Pp 1287-1293 (2024)
Publisher Information: Elsevier, 2024.
Publication Year: 2024
Collection: LCC:Medicine (General)
Subject Terms: Computed tomography, Volumetry, Morbid obesity, Laparoscopic sleeve gastrectomy, Fatty liver, Medicine (General), R5-920
More Details: Background/purpose: Laparoscopic sleeve gastrectomy (LSG) is an effective treatment for patients with morbid obesity, but the optimal gastric volume (GV) for resection remains unclear. Accordingly, we aimed to determine the optimal percentage of excised stomach that could engender significant weight loss and improve fatty liver. Methods: This prospective study included 63 patients. Computed tomography (CT) scans were performed before and 1 year after LSG to evaluate the gastric lumen (GL) and GV. Specifically, the stomach was distended with effervescent powder, following water–contrast mixture (20:1) and assessed by three-dimensional reconstruction. The correlations of reduced gastric lumen/volume (RGL/RGV) with total body weight (BW) loss and liver–spleen density ratio (LSDR) changes were analyzed, and optimal RGL/RGV associated with significant BW and fatty liver changes were determined. Results: We noted a positive correlation between the percentage of RGV/RGL (%RGV/%RGL) and percentage of total weight loss (%TWL; r = 0.359, p = 0.004 and r = 0.271, p = 0.032). Furthermore, a %RGL value of >78.2% and %RGV value of >75.3% were associated with more significant BW loss than did limited excision (both p 59.1% and >56.4% (both p 75.3% and resulted in fatty liver disease improvement when %RGV was >56.4%.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 0929-6646
Relation: http://www.sciencedirect.com/science/article/pii/S092966462400144X; https://doaj.org/toc/0929-6646
DOI: 10.1016/j.jfma.2024.02.018
Access URL: https://doaj.org/article/cc494840e1604d92bbc3750424245878
Accession Number: edsdoj.494840e1604d92bbc3750424245878
Database: Directory of Open Access Journals
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  Data: Journal of the Formosan Medical Association, Vol 123, Iss 12, Pp 1287-1293 (2024)
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  Data: Background/purpose: Laparoscopic sleeve gastrectomy (LSG) is an effective treatment for patients with morbid obesity, but the optimal gastric volume (GV) for resection remains unclear. Accordingly, we aimed to determine the optimal percentage of excised stomach that could engender significant weight loss and improve fatty liver. Methods: This prospective study included 63 patients. Computed tomography (CT) scans were performed before and 1 year after LSG to evaluate the gastric lumen (GL) and GV. Specifically, the stomach was distended with effervescent powder, following water–contrast mixture (20:1) and assessed by three-dimensional reconstruction. The correlations of reduced gastric lumen/volume (RGL/RGV) with total body weight (BW) loss and liver–spleen density ratio (LSDR) changes were analyzed, and optimal RGL/RGV associated with significant BW and fatty liver changes were determined. Results: We noted a positive correlation between the percentage of RGV/RGL (%RGV/%RGL) and percentage of total weight loss (%TWL; r = 0.359, p = 0.004 and r = 0.271, p = 0.032). Furthermore, a %RGL value of >78.2% and %RGV value of >75.3% were associated with more significant BW loss than did limited excision (both p 59.1% and >56.4% (both p 75.3% and resulted in fatty liver disease improvement when %RGV was >56.4%.
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