Evidence map›Paper›PMID 36271060›Full record

ArticleSurgical endoscopy2023

The relationship between weight loss and cognitive function in bariatric surgery.

Kimberly R Smith, Kimberley E Steele, Afroditi Papantoni, Civonnia Harris, Caroline L Speck, Arnold Bakker, Timothy H Moran, Susan Carnell, Vidyulata Kamath

Open access · greenAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Surgical endoscopy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% of its field
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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Effects of obesity on brain health and cognition.Nature reviews. Neurology · 2026
    Review
  4. Article
  5. Article
  6. Review
  7. The relationship between physical activity, sedentary time, and cognitive function following bariatric surgery.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2025
    Article
  8. Article
  9. Article
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

9 authors at 1 institution in 1 country.

Kimberly R Smith *Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 316, Baltimore, MD, 21287, USA. Kimberly.smith@jhmi.edu.ORCID http://orcid.org/0000-0001-7414-9164
Kimberley E Steele *Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA. Steele.KimMD@outlook.com.
Afroditi PapantoniDepartment of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 316, Baltimore, MD, 21287, USA.
Civonnia HarrisDepartment of Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Caroline L SpeckDepartment of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 316, Baltimore, MD, 21287, USA.
Arnold BakkerDepartment of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 316, Baltimore, MD, 21287, USA.
Timothy H MoranDepartment of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 316, Baltimore, MD, 21287, USA.
Susan CarnellDepartment of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 316, Baltimore, MD, 21287, USA.
Vidyulata KamathDepartment of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps 316, Baltimore, MD, 21287, USA.
Johns Hopkins University · US

Funding

Longitudinal Assessment of Eating-related Anxiety in Anorexia NervosaK01MH127178 · NIMH · JOHNS HOPKINS UNIVERSITY · PI Kimberly Smith · 2022 to 2026
$975k
CADMIUM'S EFFECT ON BASAL STEROIDOGENESIS IN H295R CELLSF31DK010059 · NIDDK · MEHARRY MEDICAL COLLEGE · PI BROWN, DEANNA E · 2000 to 2001
$52k
NIDDK NIH HHS F31 DK010059NIMH NIH HHS K01 MH127178
6 · The paper itself

Abstract

backgroundPreviously, we reported short-term improvements in auditory attention, oromotor processing speed, and executive function during the active weight loss phase following bariatric surgery that persisted out to 3 months. In this study, our aims were to investigate the relationship between weight loss and cognitive performance in these patients 1 year following vertical sleeve gastrectomy (VSG) and Roux-en Y gastric bypass (RYGB) surgery and to determine whether preoperative cognitive performance predicted weight loss.

methodsAdult women ages 18-55 approved for bariatric surgery completed a cognitive battery prior to and at 2, 12, 24, and 52 weeks following VSG (N = 17) or RYGB (N = 18). Scores from each task were assigned to one of the following cognitive domains: auditory attention, processing speed, memory, and executive functioning. Weight loss and cognitive scores for each domain were calculated and compared between cohorts.

resultsRYGB surgery resulted in greater weight loss at 1-year follow-up relative to VSG. Both VSG and RYGB procedures resulted in improved performance on different measures of auditory attention and both surgery groups improved across all processing speed tasks. Within the executive function domain, both groups showed improvements, but only the RYGB procedure resulted in improved performance in the Trail Making Test. Baseline auditory attention and memory performance predicted weight loss at 1 year following RYGB but not VSG surgery. Controlling for baseline cognitive performance, percent total weight loss predicted auditory attention at 1 year following RYGB but not VSG surgery.

conclusionsBariatric surgery type may result in selective improvements in cognition during the first year following surgery. Presurgical cognitive performance as well as surgery type appears to influence weight loss outcomes.

Indexed as

Bariatric SurgeryGastric BypassObesity, MorbidAdolescentAdultCognitionFemaleGastrectomyHumansMiddle AgedWeight LossYoung AdultBariatric surgeryCognitionRoux-en Y gastric bypassVertical sleeve gastrectomyWeight loss

Identifiers

PMID36271060
PMCPMC10023412
OpenAlexW4307044627

What OpenQuestion holds

Textmetadata
LicenceTDM
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.