Weight loss outcomes and associated factors after metabolic bariatric surgery: analysis of routine clinical data in Scotland

Beatrice Leyaro; Lyz Howie; Kevin McMahon; Abdulmajid Ali; Raymond Carragher

doi:10.1016/j.amjsurg.2024.116151

Weight loss outcomes and associated factors after metabolic bariatric surgery: analysis of routine clinical data in Scotland

Beatrice Leyaro^*, Lyz Howie, Kevin McMahon, Abdulmajid Ali, Raymond Carragher

^*Corresponding author for this work

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Abstract

Background
Bariatric surgery is a cornerstone intervention for individuals with severe obesity, offering substantial and sustainable weight loss.

Methods
This retrospective cohort study included 186 patients with obesity and Type2 diabetes who underwent sleeve gastrectomy (SG) or Roux-en-Y gastric bypass (RYGB) between 2009 and 2020 at University Hospital Ayr. Optimal clinical response weight loss was defined as excess weight loss (%EWL) ≥50% or total weight loss (%TWL) ≥20%.

Results
At 2-years post-surgery, 43.6% achieved ≥50 %EWL, and 44.1% achieved ≥20%TWL, with 31.8% maintaining this at 5-years. Depending on the definition used, between 11.2% and 45.9% of patients experienced recurrent weight gain. BMI had significant positive association with %TWL but negative with %EWL (p<0.05). RYGB had significantly higher %TWL compared to SG (p<0.05).

Conclusion
Most patients experienced weight loss which was maintained over time, however recurrent weight gain was noted. Pre-surgery BMI was significantly associated with weight changes.

Original language	English
Article number	116151
Journal	The American Journal of Surgery
Early online date	16 Dec 2024
DOIs	https://doi.org/10.1016/j.amjsurg.2024.116151
Publication status	E-pub ahead of print - 16 Dec 2024

Keywords

total weight loss
excess weight loss
bariatric surgery
gastric bypass
sleeve gastrwctomy

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.amjsurg.2024.116151Licence: CC BY 4.0

2024 12 16 Leyaro et al Weight acceptedAccepted author manuscript, 610 KBLicence: CC BY 4.0

Cite this

@article{515bd8da95104eb882c97b0458cadfd1,

title = "Weight loss outcomes and associated factors after metabolic bariatric surgery: analysis of routine clinical data in Scotland",

abstract = "Background Bariatric surgery is a cornerstone intervention for individuals with severe obesity, offering substantial and sustainable weight loss. Methods This retrospective cohort study included 186 patients with obesity and Type2 diabetes who underwent sleeve gastrectomy (SG) or Roux-en-Y gastric bypass (RYGB) between 2009 and 2020 at University Hospital Ayr. Optimal clinical response weight loss was defined as excess weight loss (\%EWL) ≥50\% or total weight loss (\%TWL) ≥20\%. Results At 2-years post-surgery, 43.6\% achieved ≥50 \%EWL, and 44.1\% achieved ≥20\%TWL, with 31.8\% maintaining this at 5-years. Depending on the definition used, between 11.2\% and 45.9\% of patients experienced recurrent weight gain. BMI had significant positive association with \%TWL but negative with \%EWL (p<0.05). RYGB had significantly higher \%TWL compared to SG (p<0.05). Conclusion Most patients experienced weight loss which was maintained over time, however recurrent weight gain was noted. Pre-surgery BMI was significantly associated with weight changes.",

keywords = "total weight loss, excess weight loss, bariatric surgery, gastric bypass, sleeve gastrwctomy",

author = "Beatrice Leyaro and Lyz Howie and Kevin McMahon and Abdulmajid Ali and Raymond Carragher",

year = "2024",

month = dec,

day = "16",

doi = "10.1016/j.amjsurg.2024.116151",

language = "English",

journal = "The American Journal of Surgery",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Weight loss outcomes and associated factors after metabolic bariatric surgery

T2 - analysis of routine clinical data in Scotland

AU - Leyaro, Beatrice

AU - Howie, Lyz

AU - McMahon, Kevin

AU - Ali, Abdulmajid

AU - Carragher, Raymond

PY - 2024/12/16

Y1 - 2024/12/16

N2 - Background Bariatric surgery is a cornerstone intervention for individuals with severe obesity, offering substantial and sustainable weight loss. Methods This retrospective cohort study included 186 patients with obesity and Type2 diabetes who underwent sleeve gastrectomy (SG) or Roux-en-Y gastric bypass (RYGB) between 2009 and 2020 at University Hospital Ayr. Optimal clinical response weight loss was defined as excess weight loss (%EWL) ≥50% or total weight loss (%TWL) ≥20%. Results At 2-years post-surgery, 43.6% achieved ≥50 %EWL, and 44.1% achieved ≥20%TWL, with 31.8% maintaining this at 5-years. Depending on the definition used, between 11.2% and 45.9% of patients experienced recurrent weight gain. BMI had significant positive association with %TWL but negative with %EWL (p<0.05). RYGB had significantly higher %TWL compared to SG (p<0.05). Conclusion Most patients experienced weight loss which was maintained over time, however recurrent weight gain was noted. Pre-surgery BMI was significantly associated with weight changes.

AB - Background Bariatric surgery is a cornerstone intervention for individuals with severe obesity, offering substantial and sustainable weight loss. Methods This retrospective cohort study included 186 patients with obesity and Type2 diabetes who underwent sleeve gastrectomy (SG) or Roux-en-Y gastric bypass (RYGB) between 2009 and 2020 at University Hospital Ayr. Optimal clinical response weight loss was defined as excess weight loss (%EWL) ≥50% or total weight loss (%TWL) ≥20%. Results At 2-years post-surgery, 43.6% achieved ≥50 %EWL, and 44.1% achieved ≥20%TWL, with 31.8% maintaining this at 5-years. Depending on the definition used, between 11.2% and 45.9% of patients experienced recurrent weight gain. BMI had significant positive association with %TWL but negative with %EWL (p<0.05). RYGB had significantly higher %TWL compared to SG (p<0.05). Conclusion Most patients experienced weight loss which was maintained over time, however recurrent weight gain was noted. Pre-surgery BMI was significantly associated with weight changes.

KW - total weight loss

KW - excess weight loss

KW - bariatric surgery

KW - gastric bypass

KW - sleeve gastrwctomy

U2 - 10.1016/j.amjsurg.2024.116151

DO - 10.1016/j.amjsurg.2024.116151

M3 - Article

JO - The American Journal of Surgery

JF - The American Journal of Surgery

M1 - 116151

ER -

Weight loss outcomes and associated factors after metabolic bariatric surgery: analysis of routine clinical data in Scotland

Abstract

Keywords

UN SDGs

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