Constraints of Weight Loss as a Marker of Bariatric Surgery Success: An Exploratory Study

PurposeThe aim of this exploratory study was to investigate whether the degree of weight loss properly reflects improvements in cardiometabolic health among patients who underwent Roux-en-Y gastric bypass.MethodsIn this ancillary analysis from a clinical trial, patients were clustered into tertiles...

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Main Authors: Saulo Gil, Karla Goessler, Wagner S. Dantas, Igor Hisashi Murai, Carlos Alberto Abujabra Merege-Filho, Rosa Maria R. Pereira, Roberto de Cleva, Marco Aurélio Santo, John P. Kirwan, Hamilton Roschel, Bruno Gualano
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-06-01
Series:Frontiers in Physiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fphys.2021.640191/full
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author Saulo Gil
Karla Goessler
Wagner S. Dantas
Wagner S. Dantas
Igor Hisashi Murai
Carlos Alberto Abujabra Merege-Filho
Rosa Maria R. Pereira
Roberto de Cleva
Marco Aurélio Santo
John P. Kirwan
Hamilton Roschel
Bruno Gualano
author_facet Saulo Gil
Karla Goessler
Wagner S. Dantas
Wagner S. Dantas
Igor Hisashi Murai
Carlos Alberto Abujabra Merege-Filho
Rosa Maria R. Pereira
Roberto de Cleva
Marco Aurélio Santo
John P. Kirwan
Hamilton Roschel
Bruno Gualano
author_sort Saulo Gil
collection DOAJ
description PurposeThe aim of this exploratory study was to investigate whether the degree of weight loss properly reflects improvements in cardiometabolic health among patients who underwent Roux-en-Y gastric bypass.MethodsIn this ancillary analysis from a clinical trial, patients were clustered into tertiles according to the magnitude of the percentage weight loss (1st tertile: “higher weight loss”: −37.1 ± 5.8%; 2nd tertile: “moderate weight loss”: −29.7 ± 1.4%; 3rd tertile: “lower weight loss”: −24.2 ± 2.3%). Delta changes (9 months after surgery-baseline) in clustered cardiometabolic risk (i.e., blood pressure index, fasting glucose, high-density lipoprotein [HDL] and triglycerides [TG]), glycated hemoglobin (HbA1c), homeostasis model assessment (HOMA-IR), and C-reactive protein (CRP) were calculated.ResultsA total of 42 patients who had complete bodyweight data (age = 40 ± 8 year; BMI = 47.8 ± 7.1 kg/m2) were included. Surgery led to substantial weight loss (−37.9 ± 11.3 kg, P < 0,001), and clinically significant improvements in blood pressure index (−17.7 ± 8.2 mmHg, P < 0.001), fasting glucose (−36.6 ± 52.5 mg/dL, P < 0.001), HDL (9.4 ± 7.1 mg/dL, P < 0.001), TG (−35.8 ± 44.1 mg/dL P < 0,001), HbA1c (−1.2 ± 1.6%, P < 0.001), HOMA-IR (−4.7 ± 3.9 mg/dL, P < 0.001) and CRP (−8.5 ± 6.7 μg/mL P < 0.001). Comparisons across tertiles revealed no differences for cardiometabolic risk score, fasting glucose, HbAc1, HOMA-IR, blood pressure index, CRP, HDL, and TG (P > 0.05 for all). Individual variable analysis confirmed cardiometabolic improvements across the spectrum on weight-loss. There were no associations between weight loss and any dependent variable.ConclusionWeight loss following bariatric surgery does not correlate with improvements in cardiovascular risk factors. These findings suggest that weight loss alone may be insufficient to assess the cardiometabolic success of bariatric surgery, and the search for alternate proxies that better predict surgery success are needed.
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spelling doaj.art-73b9af580b35443390689447eae0041f2022-12-21T22:00:06ZengFrontiers Media S.A.Frontiers in Physiology1664-042X2021-06-011210.3389/fphys.2021.640191640191Constraints of Weight Loss as a Marker of Bariatric Surgery Success: An Exploratory StudySaulo Gil0Karla Goessler1Wagner S. Dantas2Wagner S. Dantas3Igor Hisashi Murai4Carlos Alberto Abujabra Merege-Filho5Rosa Maria R. Pereira6Roberto de Cleva7Marco Aurélio Santo8John P. Kirwan9Hamilton Roschel10Bruno Gualano11Applied Physiology and Nutrition Research Group, School of Physical Education and Sport, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, BrazilApplied Physiology and Nutrition Research Group, School of Physical Education and Sport, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, BrazilApplied Physiology and Nutrition Research Group, School of Physical Education and Sport, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, BrazilIntegrated Physiology and Molecular Medicine Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United StatesApplied Physiology and Nutrition Research Group, School of Physical Education and Sport, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, BrazilApplied Physiology and Nutrition Research Group, School of Physical Education and Sport, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, BrazilRheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, BrazilDepartment of Digestive Surgery, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, BrazilDepartment of Digestive Surgery, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, BrazilIntegrated Physiology and Molecular Medicine Laboratory, Pennington Biomedical Research Center, Baton Rouge, LA, United StatesApplied Physiology and Nutrition Research Group, School of Physical Education and Sport, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, BrazilApplied Physiology and Nutrition Research Group, School of Physical Education and Sport, Faculdade de Medicina FMUSP, Universidade de São Paulo, São Paulo, BrazilPurposeThe aim of this exploratory study was to investigate whether the degree of weight loss properly reflects improvements in cardiometabolic health among patients who underwent Roux-en-Y gastric bypass.MethodsIn this ancillary analysis from a clinical trial, patients were clustered into tertiles according to the magnitude of the percentage weight loss (1st tertile: “higher weight loss”: −37.1 ± 5.8%; 2nd tertile: “moderate weight loss”: −29.7 ± 1.4%; 3rd tertile: “lower weight loss”: −24.2 ± 2.3%). Delta changes (9 months after surgery-baseline) in clustered cardiometabolic risk (i.e., blood pressure index, fasting glucose, high-density lipoprotein [HDL] and triglycerides [TG]), glycated hemoglobin (HbA1c), homeostasis model assessment (HOMA-IR), and C-reactive protein (CRP) were calculated.ResultsA total of 42 patients who had complete bodyweight data (age = 40 ± 8 year; BMI = 47.8 ± 7.1 kg/m2) were included. Surgery led to substantial weight loss (−37.9 ± 11.3 kg, P < 0,001), and clinically significant improvements in blood pressure index (−17.7 ± 8.2 mmHg, P < 0.001), fasting glucose (−36.6 ± 52.5 mg/dL, P < 0.001), HDL (9.4 ± 7.1 mg/dL, P < 0.001), TG (−35.8 ± 44.1 mg/dL P < 0,001), HbA1c (−1.2 ± 1.6%, P < 0.001), HOMA-IR (−4.7 ± 3.9 mg/dL, P < 0.001) and CRP (−8.5 ± 6.7 μg/mL P < 0.001). Comparisons across tertiles revealed no differences for cardiometabolic risk score, fasting glucose, HbAc1, HOMA-IR, blood pressure index, CRP, HDL, and TG (P > 0.05 for all). Individual variable analysis confirmed cardiometabolic improvements across the spectrum on weight-loss. There were no associations between weight loss and any dependent variable.ConclusionWeight loss following bariatric surgery does not correlate with improvements in cardiovascular risk factors. These findings suggest that weight loss alone may be insufficient to assess the cardiometabolic success of bariatric surgery, and the search for alternate proxies that better predict surgery success are needed.https://www.frontiersin.org/articles/10.3389/fphys.2021.640191/fullgastric bypasscardiometabolic risk (factors)metabolic healthobesityweight loss
spellingShingle Saulo Gil
Karla Goessler
Wagner S. Dantas
Wagner S. Dantas
Igor Hisashi Murai
Carlos Alberto Abujabra Merege-Filho
Rosa Maria R. Pereira
Roberto de Cleva
Marco Aurélio Santo
John P. Kirwan
Hamilton Roschel
Bruno Gualano
Constraints of Weight Loss as a Marker of Bariatric Surgery Success: An Exploratory Study
Frontiers in Physiology
gastric bypass
cardiometabolic risk (factors)
metabolic health
obesity
weight loss
title Constraints of Weight Loss as a Marker of Bariatric Surgery Success: An Exploratory Study
title_full Constraints of Weight Loss as a Marker of Bariatric Surgery Success: An Exploratory Study
title_fullStr Constraints of Weight Loss as a Marker of Bariatric Surgery Success: An Exploratory Study
title_full_unstemmed Constraints of Weight Loss as a Marker of Bariatric Surgery Success: An Exploratory Study
title_short Constraints of Weight Loss as a Marker of Bariatric Surgery Success: An Exploratory Study
title_sort constraints of weight loss as a marker of bariatric surgery success an exploratory study
topic gastric bypass
cardiometabolic risk (factors)
metabolic health
obesity
weight loss
url https://www.frontiersin.org/articles/10.3389/fphys.2021.640191/full
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