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Resting Metabolic Rate Testing in Bariatric Surgery Patients

The Role of Pre-Surgical Metabolic Testing for Procedure Selection in Bariatric Surgery

Status
Terminated
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03221543
Enrollment
84
Registered
2017-07-18
Start date
2017-07-31
Completion date
2023-12-25
Last updated
2026-01-26

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

Conditions

Bariatric Surgery Candidate, Weight Loss

Brief summary

This study evaluates if measuring resting metabolic rate (the number of calories the body burns at rest) before surgery can help predict successful weight loss after surgery.

Detailed description

This is a prospective study enrolling patients from the Baylor Weight Loss Surgery Center who have met all of the requirements to proceed with primary bariatric surgery. Patients will undergo pre-operative and post-operative metabolic testing (6 months, and 1 year after surgery) using a portable calorimeter with eventual follow up of medical record at 5 years. Data from up to 50 patients will be collected. The main objectives are to examine if the pre-operative resting metabolic rate can accurately predict successful weight loss after bariatric surgery and if it can be used to guide the selection of the type of bariatric surgery that would be most successful for the patient.

Interventions

DEVICEReeVue Indirect Calorimeter

The ReeVue Indirect Calorimeter will be used in this study to measure the resting metabolic rate. The test takes approximately ten minutes to complete. The subject should prepare for the test by avoiding stimulants and exercise on the day of the test, as well as eating meals four hours before the test. The subject will be seated during the test. They will be given a nose clip that looks like a clothes pin to be placed on their nose. A plastic mouth piece that allows all of the air they breathe to come in through the top of the mouth piece and the air they breathe out to go into the ReeVue Calorimeter will also be provided. The subject will remain in this position for ten minutes until the testing is complete.

Sponsors

Baylor Research Institute
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* All patients scheduled for a primary bariatric surgery * 18 years of age to no upper limit

Design outcomes

Primary

MeasureTime frameDescription
Examine percent total weight loss1 yearWeigh subjects using a scale

Secondary

MeasureTime frameDescription
Change in resting metabolic rate1 yearObtain resting metabolic rate using the Reevue Indirect Calorimeter

Countries

United States

Outcome results

None listed

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