Defining Weight Loss After Bariatric Surgery: a Call for Standardization.
Bariatric surgery
Body mass index
Diabetes
Excess weight loss
Weight loss
Weight regain
Journal
Obesity surgery
ISSN: 1708-0428
Titre abrégé: Obes Surg
Pays: United States
ID NLM: 9106714
Informations de publication
Date de publication:
11 2019
11 2019
Historique:
pubmed:
1
7
2019
medline:
27
5
2020
entrez:
1
7
2019
Statut:
ppublish
Résumé
Some weight regain is expected after bariatric surgery; however, this concept is not well defined. A favorable weight loss response has commonly been defined as 50% excess weight loss (EWL). The medical literature uses %total weight loss (%TWL), which has recently been adopted in some surgical literature. To demonstrate variability in bariatric surgery outcomes based on the definition applied and propose a standardized definition. A retrospective review of patients who underwent bariatric surgery from 2001 to 2016 with ≥ 1 year follow-up was completed. Several previously proposed definitions of weight regain were analyzed. One thousand five hundred seventy-four patients met inclusion criteria. Preoperative mean body mass index (BMI) was 47.6 ± 6.4 kg/m A high percentage (> 90%) of patients achieve ≥ 20% TWL and ≥ 50% EWL. Increased preoperative BMI was associated with increased %TWL and decreased %EWL at 2 years postoperative. The incidence of weight regain varies depending on the definition. We propose a standardized definition for identifying good responders following bariatric surgery to be ≥ 20% TWL, as this measure is least influenced by preoperative BMI.
Sections du résumé
BACKGROUND
Some weight regain is expected after bariatric surgery; however, this concept is not well defined. A favorable weight loss response has commonly been defined as 50% excess weight loss (EWL). The medical literature uses %total weight loss (%TWL), which has recently been adopted in some surgical literature.
OBJECTIVE
To demonstrate variability in bariatric surgery outcomes based on the definition applied and propose a standardized definition.
METHODS
A retrospective review of patients who underwent bariatric surgery from 2001 to 2016 with ≥ 1 year follow-up was completed. Several previously proposed definitions of weight regain were analyzed.
RESULTS
One thousand five hundred seventy-four patients met inclusion criteria. Preoperative mean body mass index (BMI) was 47.6 ± 6.4 kg/m
CONCLUSIONS
A high percentage (> 90%) of patients achieve ≥ 20% TWL and ≥ 50% EWL. Increased preoperative BMI was associated with increased %TWL and decreased %EWL at 2 years postoperative. The incidence of weight regain varies depending on the definition. We propose a standardized definition for identifying good responders following bariatric surgery to be ≥ 20% TWL, as this measure is least influenced by preoperative BMI.
Identifiants
pubmed: 31256357
doi: 10.1007/s11695-019-04022-z
pii: 10.1007/s11695-019-04022-z
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
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