Evidence map›Paper›PMID 31256357›Full record

ArticleObesity surgery2019

Defining Weight Loss After Bariatric Surgery: a Call for Standardization.

Brandon T Grover, Michael C Morell, Shanu N Kothari, Andrew J Borgert, Kara J Kallies, Matthew T Baker

Abstract read
PubMed Publisher
In one paragraph

Article in Obesity surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 113 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
113citing papers in PubMed, 8 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

113 citing papers in PubMed, 8 syntheses or guidelines pooled it.

  1. Pooled it
  2. Guideline
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Guideline
  7. Pooled it
  8. Pooled it
  9. Trial
  10. Trial
  11. Trial
  12. Trial
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

53 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Brandon T GroverDepartment of General Surgery, Gundersen Health System, 1900 South Avenue, C05-001, La Crosse, WI, 54601, USA. btgrover@gundersenhealth.org.ORCID http://orcid.org/0000-0001-7060-4991
Michael C MorellMinimally Invasive Bariatric Surgery and Advanced Laparoscopy Fellowship, Department of Medical Education, Gundersen Medical Foundation, La Crosse, WI, USA.
Shanu N KothariDepartment of General Surgery, Gundersen Health System, 1900 South Avenue, C05-001, La Crosse, WI, 54601, USA.
Andrew J BorgertDepartment of Medical Research, Gundersen Medical Foundation, La Crosse, WI, USA.
Kara J KalliesDepartment of Medical Research, Gundersen Medical Foundation, La Crosse, WI, USA.
Matthew T BakerDepartment of General Surgery, Gundersen Health System, 1900 South Avenue, C05-001, La Crosse, WI, 54601, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSome 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.

objectiveTo demonstrate variability in bariatric surgery outcomes based on the definition applied and propose a standardized definition.

methodsA 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.

resultsOne thousand five hundred seventy-four patients met inclusion criteria. Preoperative mean body mass index (BMI) was 47.6 ± 6.4 kg/m

conclusionsA 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.

Indexed as

Body-Weight TrajectoryAdultBariatric SurgeryBody Mass IndexBody Weights and MeasuresFemaleFollow-Up StudiesHumansMaleMiddle AgedObesity, MorbidPostoperative PeriodReference StandardsRetrospective StudiesTreatment OutcomeWeight LossBariatric surgeryBody mass indexDiabetesExcess weight lossWeight lossWeight regain

Identifiers

PMID31256357

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.