Does Preoperative Weight Change Predict Postoperative Weight Loss after Laparoscopic Roux-en-Y Gastric Bypass in the Short Term?

Background. Many institutions mandate preoperative weight loss prior to bariatric surgery. This study examines the correlation between preoperative weight change and postoperative success following laparoscopic Roux-en-Y gastric bypass.Methods. We retrospectively studied the correlation between change in BMI before surgery and change in BMI postoperatively, using linear regression analyses and one-way ANOVA, in 256 consecutive gastric bypass patients with 1-year followup.Results. Of 256 patients, 125 lost weight preoperatively (mean % BMI), while 131 maintained or gained weight (mean +1.2% BMI). Postoperatively, there was no significant difference in percent BMI loss between the two groups (34.6% and 34.5%). The percent change in BMI preoperatively did not predict postoperative BMI change after 1 year ().Conclusions. Our study did not show any correlation between preoperative weight change and postoperative weight loss after Roux-en-Y gastric bypass. Therefore, we do not believe that potential patients should be denied bariatric surgery on the basis of their inability to lose weight preoperatively.

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The association between socioeconomic factors and weight loss 5 years after gastric bypass surgery

International Journal of Obesity ◽

10.1038/s41366-020-0637-0 ◽

2020 ◽

Vol 44 (11) ◽

pp. 2279-2290

Author(s):

Erik Stenberg ◽

Ingmar Näslund ◽

Carina Persson ◽

Eva Szabo ◽

Magnus Sundbom ◽

...

Keyword(s):

Bariatric Surgery ◽

Socioeconomic Status ◽

Weight Loss ◽

Gastric Bypass ◽

Socioeconomic Factors ◽

First Generation ◽

First Generation Immigrants ◽

Preoperative Body Mass Index ◽

Postoperative Weight Loss ◽

The Mean

Abstract Introduction Patients with low socioeconomic status have been reported to have poorer outcome than those with a high socioeconomic status after several types of surgery. The influence of socioeconomic factors on weight loss after bariatric surgery remains unclear. The aim of the present study was to evaluate the association between socioeconomic factors and postoperative weight loss. Materials and methods This was a retrospective, nationwide cohort study with 5-year follow-up data for 13,275 patients operated with primary gastric bypass in Sweden between January 2007 and December 2012 (n = 13,275), linking data from the Scandinavian Obesity Surgery Registry, Statistics Sweden, the Swedish National Patient Register, and the Swedish Prescribed Drugs Register. The assessed socioeconomic variables were education, profession, disposable income, place of residence, marital status, financial aid and heritage. The main outcome was weight loss 5 years after surgery, measured as total weight loss (TWL). Linear regression models, adjusted for age, preoperative body mass index (BMI), sex and comorbid diseases were constructed. Results The mean TWL 5 years after surgery was 28.3 ± 9.86%. In the adjusted model, first-generation immigrants (%TWL, B −2.4 [95% CI −2.9 to −1.9], p < 0.0001) lost significantly less weight than the mean, while residents in medium-sized (B 0.8 [95% CI 0.4–1.2], p = 0.0001) or small towns (B 0.8 [95% CI 0.4–1.2], p < 0.0001) lost significantly more weight. Conclusions All socioeconomic groups experienced improvements in weight after bariatric surgery. However, as first-generation immigrants and patients residing in larger towns (>200,000 inhabitants) tend to have inferior weight loss compared to other groups, increased support in the pre- and postoperative setting for these two groups could be of value. The remaining socioeconomic factors appear to have a weaker association with postoperative weight loss.

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Qualifying for bariatric surgery: is preoperative weight loss a reliable predictor of postoperative weight loss?

Surgery for Obesity and Related Diseases ◽

10.1016/j.soard.2017.07.012 ◽

2018 ◽

Vol 14 (1) ◽

pp. 60-64 ◽

Cited By ~ 20

Author(s):

Raman D. Krimpuri ◽

James M. Yokley ◽

Eileen L. Seeholzer ◽

Ewald L. Horwath ◽

Charles L. Thomas ◽

...

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Preoperative Weight Loss ◽

Postoperative Weight Loss ◽

Reliable Predictor ◽

Preoperative Weight

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Weight and Glycemic Control Outcomes of Bariatric Surgery and Pharmacotherapy in Patients With Melanocortin-4 Receptor Deficiency

Frontiers in Endocrinology ◽

10.3389/fendo.2021.792354 ◽

2022 ◽

Vol 12 ◽

Author(s):

Esphie Grace Fodra Fojas ◽

Saradalekshmi Koramannil Radha ◽

Tomader Ali ◽

Evan P. Nadler ◽

Nader Lessan

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Glycemic Control ◽

Therapeutic Interventions ◽

Control Group ◽

Short Term ◽

Melanocortin 4 Receptor ◽

Significant Difference

BackgroundMelanocortin-4 receptor (MC4R) mutations are the most common of the rare monogenic forms of obesity. However, the efficacy of bariatric surgery (BS) and pharmacotherapy on weight and glycemic control in individuals with MC4R deficiency (MC4R-d) is not well-established. We investigated and compared the outcomes of BS and pharmacotherapy in patients with and without MC4R-d.MethodsPertinent details were derived from the electronic database among identified patients who had BS with MC4R-d (study group, SG) and wild-type controls (age- and sex-matched control group, CG). Short- and long-term outcomes were reported for the SG. Short-term outcomes were compared between the two groups.ResultsSeventy patients were screened for MC4R-d. The SG [six individuals (four females, two males); 18 (10–27) years old at BS; 50.3 (41.8–61.9) kg/m2 at BS, three patients with homozygous T162I mutations, two patients with heterozygous T162I mutations, and one patient with heterozygous I170V mutation] had a follow-up duration of up to 10 years. Weight loss, which varied depending on mutation type [17.99 (6.10–22.54) %] was stable for 6 months; heterogeneity of results was observed thereafter. BS was found superior to liraglutide on weight and glycemic control outcomes. At a median follow-up of 6 months, no significant difference was observed on weight loss (20.8% vs. 23.0%, p = 0.65) between the SG and the CG [eight individuals (four females, four males); 19.0 (17.8–36.8) years old at BS, 46.2 (42.0–48.3) kg/m2 at BS or phamacotherapeutic intervention]. Glycemic control in patients with MC4R-d and Type 2 diabetes improved post-BS.ConclusionOur data indicate efficacious short-term but varied long-term weight loss and glycemic control outcomes of BS on patients with MC4R-d, suggesting the importance of ongoing monitoring and complementary therapeutic interventions.

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Short-Term Preoperative Weight Loss and Postoperative Outcomes in Bariatric Surgery

Journal of the American College of Surgeons ◽

10.1016/j.jamcollsurg.2017.12.032 ◽

2018 ◽

Vol 226 (4) ◽

pp. 514-524 ◽

Cited By ~ 14

Author(s):

Deborah A. Hutcheon ◽

Allyson L. Hale ◽

Joseph A. Ewing ◽

Megan Miller ◽

Francisco Couto ◽

...

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Postoperative Outcomes ◽

Preoperative Weight Loss ◽

Short Term ◽

Preoperative Weight

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Long-Term Effect of Gastric Bypass and Sleeve Gastrectomy on Severe Obesity: Do Preoperative Weight Loss and Binge Eating Behavior Predict the Outcome of Bariatric Surgery?

Obesity Surgery ◽

10.1007/s11695-016-2090-7 ◽

2016 ◽

Vol 26 (9) ◽

pp. 2161-2167 ◽

Cited By ~ 30

Author(s):

Tuula Pekkarinen ◽

Harri Mustonen ◽

Timo Sane ◽

Nabil Jaser ◽

Anne Juuti ◽

...

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Gastric Bypass ◽

Sleeve Gastrectomy ◽

Severe Obesity ◽

Term Effect ◽

Preoperative Weight Loss ◽

Long Term Effect ◽

Preoperative Weight

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P-32: The effects of preoperative weight loss on outcomes following laparoscopic roux-en-Y gastric bypass: Results from the Michigan Bariatric Surgery Collaborative

Surgery for Obesity and Related Diseases ◽

10.1016/j.soard.2010.03.234 ◽

2010 ◽

Vol 6 (3) ◽

pp. S38

Author(s):

Jonathan Finks ◽

Kevin M. Doherty ◽

Arthur Carlin ◽

Kevin Krause ◽

Jeffrey A. Genaw ◽

...

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Gastric Bypass ◽

Preoperative Weight Loss ◽

Preoperative Weight

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Comment on: qualifying for bariatric surgery: is preoperative weight loss a reliable predictor of postoperative weight loss?

Surgery for Obesity and Related Diseases ◽

10.1016/j.soard.2017.10.018 ◽

2018 ◽

Vol 14 (1) ◽

pp. 65

Author(s):

Ramzi S. Alami

Keyword(s):

Bariatric Surgery ◽

Weight Loss ◽

Preoperative Weight Loss ◽

Postoperative Weight Loss ◽

Reliable Predictor ◽

Preoperative Weight

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IMPACT ON QUALITY OF LIFE, WEIGHT LOSS AND COMORBIDITIES: a study comparing the biliopancreatic diversion with duodenal switch and the banded Roux-en-Y gastric bypass

Arquivos de Gastroenterologia ◽

10.1590/s0004-28032014000400010 ◽

2014 ◽

Vol 51 (4) ◽

pp. 320-327 ◽

Cited By ~ 8

Author(s):

Maria Ignez Xavier de Toledo DUARTE ◽

Debora Pastore BASSITT ◽

Otávio Cansanção de AZEVEDO ◽

Jaques WAISBERG ◽

Nagamassa YAMAGUCHI ◽

...

Keyword(s):

Quality Of Life ◽

Bariatric Surgery ◽

Weight Loss ◽

Gastric Bypass ◽

Sexual Interest ◽

Control Group ◽

Sf 36 ◽

Significant Difference ◽

Different Types

Context Few studies have evaluated the results of different types of bariatric surgery using the Medical Outcome Study 36 - Health Survey Short-Form (SF-36) quality of life questionnaire, the Bariatric and Reporting Outcome System (BAROS) and the reviewed Moorehead-Ardelt Quality of Life II Questionnaire (M-A QoLQ II) that is part of BAROS. The Roux-en-Y gastric bypass (RYGB) is the most common morbid obesity surgery worldwide. However, there is evidence indicating that a biliopancreatic diversion with duodenal switch (DS) is more effective than RYGB in weight loss terms. Objectives To evaluate the impact of different types of bariatric surgery on quality of life, comorbidities and weight loss. Methods Two groups of patients who underwent bariatric surgery conventional Banded Roux-en-Y gastric bypass (BRYGB) or DS were evaluated through monitoring at 12 to 36 months after surgery, as well as a control group of obese patients who had not undergone surgery. The tools used for this were SF-36, BAROS and M-A QoLQ II. The DS group consisted of 17 patients and the BRYGB group consisted of 20. The control group comprised 20 independent, morbidly obese individuals. Results The mean age of the patients in the groups was 45.18 in the DS group, 49.75 in the BRYGB group and 44.25 in the control group, with no significant difference. There was no difference in the ratio of men to women in the groups. The patients that had surgery showed a significant improvement in all domains of quality of life vs the control group. Comparing the two groups that underwent surgery, the DS group achieved better quality of life results in terms of “general state of health” and “pain”, according to responses to the SF-36 tool, and in terms of “sexual interest”, according to responses to the M-A QoLQ II tool. There was no significant difference among the three groups regarding the ratio of occurrence of comorbidities. In the groups that had surgery, the resolution of comorbidities was similar. The final classification according to the BAROS Protocol was excellent for the DS group and very good for the BRYGB group, with a statistical difference in favor of the DS group (P = 0.044*). There was no difference in the percentages of excess weight loss between the DS group (82.1%) and the BRYGB group (89.4%) (P = 0.376). Conclusions A comparison of the performance of the groups, which were monitored from 12 to 36 months after surgery, showed that the two types of surgery are effective to improve quality of life, comorbidities and weight loss. The DS surgery produced better results in the quality of life evaluations regarding 2 of 8 domains according to the SF-36, and “sexual interest” according to the M-A QoLQ II. In the groups that had surgery, the patients showed high rates of comorbidity resolution. Weight loss was similar for the two surgical groups.

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