Chronic Abdominal Pain After Gastric Bypass

Chronic Abdominal Pain After Gastric Bypass for Morbid Obesity

Status

UNKNOWN

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT03455998

Enrollment

250

Registered

2018-03-07

Start date

2014-02-01

Completion date

2020-10-31

Last updated

2018-03-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Abdominal Pain

Keywords

morbid obesity, gastric bypass, pain, symptoms

Brief summary

The study aims to explore patients perception of chronic abdominal pain after Roux en Y gastric bypass surgery for morbid obesity. The investigators aim to describe characteristics of symptoms of pain. Potential risk factors for developing abdominal pain post gastric bypass will be explored.

Detailed description

This is a single-center, prospective, longitudinal, cohort study performed at the Department of Morbid Obesity and Bariatric Surgery, Oslo University Hospital. Patients undergoing gastric bypass are eligible for inclusion. The study is approved by the Regional Committee for Medical and Health Research Ethics (no.2013/1263), South-East health region. All participants provide written consent for study paennrollment. The participants are asked to fill inn a set of questionnaires before and during follow-up after gastric bypass surgery. Symptom characteristics are explored and evaluated. Quality of life is included in the analyses. The main outcome is findings at 2 years post surgery, but the patients will be followed for 5 years. The investigators also aim to evaluate by objective measures the patients perception of pain by temperature and skin pressure stimulants before and after surgery (2 years).

Interventions

OTHERquestionnaires

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 60 Years

Healthy volunteers

Yes

Inclusion criteria

• Indication for gastric bypass surgery i.e. BMI \> 40 kg/m2 or BMI \> 35 kg/m2 and obesity related comorbidity following failed attempts of sustained weight loss

Exclusion criteria

* Other indications for gastric bypass surgery than obesity * Previous bariatric surgery * Other concomitant surgical procedures for abdominal pain such as cholecystectomy

Design outcomes

Primary

Measure	Time frame	Description
Chronic abdominal pain 2 years post gastric bypass surgery	Patient follow up complete 2020	questionnaire

Secondary

Measure	Time frame	Description
Quality of life	patient follow up complete 2020	questionnaire
Objective evaluation of pain perception	baseline and 2 years	skin sensors

Countries

Norway

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026