Cristin-prosjekt-ID: 2518514
Sist endret: 21. september 2021, 11:54

Cristin-prosjekt-ID: 2518514
Sist endret: 21. september 2021, 11:54
Prosjekt

The Oslo Bariatric Surgery Study (OBSS) Cognitive – A Prospective Study on Bariatric Surgery and Cognitive Function

prosjektleder

Anna Maria Camilla Lindvall Dahlgren
ved Oslo universitetssykehus HF

prosjekteier / koordinerende forskningsansvarlig enhet

  • Oslo universitetssykehus HF

Klassifisering

Vitenskapsdisipliner

Psykologi

Emneord

Fedme og fedmekirurgi

Kategorier

Prosjektkategori

  • Doktorgradsprosjekt

Tidsramme

Aktivt
Start: 1. mai 2015 Slutt: 31. desember 2022

Beskrivelse Beskrivelse

Tittel

The Oslo Bariatric Surgery Study (OBSS) Cognitive – A Prospective Study on Bariatric Surgery and Cognitive Function

Vitenskapelig sammendrag

Bariatric surgery is a common treatment option for severe obesity, leading to substantial weight loss and improvements in obesity-related disease. However, there is considerable variability in weight loss outcomes over time. Optimal weight loss is partly dependent on the patient´s ability to initiate and sustain a permanent lifestyle change; hence, the identification of psychological factors implicated in weight loss outcomes is important. Our understanding of the psychological factors underlying weight loss variability in bariatric surgery treatment is still incomplete. Cognitive function possibly constitutes an important psychological factor in weight loss results via its contribution to treatment adherence and the regulation of eating behavior. An emergent literature suggests that cognitive function both contribute to and are influenced by postoperative weight loss. The main insights to be drawn from previous findings include the predictive role of cognitive function in determining postoperative weight status, and the role of bariatric surgery in improving postoperative memory performance. To date, important issues in this research area remain unclear. Prior prospective surgical studies have mostly investigated direct associations between cognitive function and postoperative weight loss, excluding eating behavior as a factor in this relationship. Further, as most prior prospective studies of postoperative memory function have used data derived from a limited pool of patients, and solely assessed verbal memory, key interpretations regarding the effect of bariatric surgery on memory function remain limited and unchallenged.

The current thesis adds to this growing research field by extending prior findings on these two separate research questions. Specifically, two studies focus on the role of executive function in eating behavior and weight loss, both prior to and following bariatric surgery. The last study examines changes in postoperative memory function by including measurement modalities not covered in prior investigations. All three studies use data from the Oslo Bariatric Surgery Study Cognitive, a 2-year prospective observational research project investigating cognitive function in a sample of bariatric surgery patients treated at the Centre for Morbid Obesity and Bariatric Surgery at Oslo University Hospital.

Overall, findings suggest that individual variability in working memory and inhibitory control is related to pre-and postoperative eating behavior and weight loss, and the possible occurrence of memory difficulties in the first year following surgery. These exploratory data may inspire future investigations of preoperative executive function and mediating factors that contribute to weight loss outcomes following bariatric surgery, as well as future studies of the potential consequences of reduced memory function the first year after surgery. These studies should focus on the identification of vulnerable individuals, as well as the development of targeted interventions to facilitate treatment success during the first year following surgery, which may reduce the risk for suboptimal WL outcome over the long term.

prosjektdeltakere

prosjektleder
Aktiv cristin-person

Anna Maria Camilla Lindvall Dahlgren

  • Tilknyttet:
    Prosjektleder
    ved Oslo universitetssykehus HF
  • Tilknyttet:
    Prosjektdeltaker
    ved Oslo Nye Høyskole

Jon Adalsteinn Kristinsson

  • Tilknyttet:
    Prosjektdeltaker
    ved Sykelig overvekt, seksjon for ved Oslo universitetssykehus HF
Aktiv cristin-person

Ingela Lundin Kvalem

  • Tilknyttet:
    Prosjektdeltaker
    ved Helse-, utviklings- og personlighetspsyk ved Universitetet i Oslo
1 - 3 av 3

Resultater Resultater

Chew and spit (CHSP) in bariatric patients: a case series.

Aouad, Phillip; Stedal, Kristin; Walø-Syversen, Gro; Hay, Phillipa; Dahlgren, Anna Maria Camilla Lindvall. 2021, Journal of Eating Disorders. UWS, ONH, OUS, SYDNEYVitenskapelig artikkel

Visual, verbal and everyday memory 2 years after bariatric surgery: Poorer memory performance at 1-year follow-up. .

Walø-Syversen, Gro; Kvalem, Ingela Lundin; Kristinsson, Jon Adalsteinn; Eribe, Inger; Rø, Øyvind; Brunborg, Cathrine; Dahlgren, Anna Maria Camilla Lindvall. 2021, Frontiers in Psychology. ONH, UIO, OUSVitenskapelig artikkel

Preoperative inhibitory control predicts weight loss 1 year after bariatric surgery.

Walø-Syversen, Gro; Kvalem, Ingela Lundin; Kristinsson, Jon Adalsteinn; Eribe, Inger; Rø, Øyvind; Brunborg, Cathrine; Dahlgren, Anna Maria Camilla Lindvall. 2020, European Eating Disorders Review. ONH, UIO, OUSVitenskapelig artikkel

Executive Function, Eating Behavior, and Preoperative Weight Loss in Bariatric Surgery Candidates: An Observational Study.

Syversen, Gro; Kvalem, Ingela Lundin; Kristinsson, Jon Adalsteinn; Eribe, Inger; Rø, Øyvind; Dahlgren, Anna Maria Camilla Lindvall. 2019, Obesity Facts. UIO, OUSVitenskapelig artikkel

Confirmatory factor analysis and psychometric properties of the Norwegian version of the Repetitive Eating Questionnaire: Further evidence for two distinct subtypes of grazing behaviour.

Reas, Deborah; Dahlgren, Anna Maria Camilla Lindvall; wonderlich, joseph; Syversen, Gro; Kvalem, Ingela Lundin. 2019, European Eating Disorders Review. UIO, OUS, GMUVitenskapelig artikkel
1 - 5 av 5