Prevalence and Outcome of Brachial Artery Endothelial Function in Morbidly Obese Patients Undergoing Bariatric Surgery

May 5, 2016 updated by: Sheba Medical Center

The relation between obesity and ischemic heart disease (IHD) is under considerable debate. The reduction in all-cause mortality and, more specifically, the reduction in cardiac-related mortality seen after weight-loss surgery, may be due to regression or slowing developement of subclinical IHD. Function of cells lining the arteries (endothelium) is closely related to the state of IHD and its measurement can serve as a surrogate marker for the existence and severity of IHD. The investigators hypothesize that the prevalence of undiagnosed IHD in the morbidly obese population is high and that following surgery for weight reduction there is a halt in the progression, or even a regression in its severity.

The study includes measurement of endothelial function before and after weight-reducing surgery.

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

13

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Israel
      • Tel Hashomer, Israel, 52621
        • Sheba Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Morbisly obese patients scheduled to undergo bariatric surgery

Description

Inclusion Criteria:

  • Morbidly obese patients who fulfill the NIH criteria for surgical intervention.

Exclusion Criteria:

  • Patients deemed unfit for surgery
  • Pregnant women, or who are attempting conception.
  • Subjects with any history of myocardial infarction, coronary artery bypass grafting surgery, coronary angiography with angioplasty and/or stenting, or any lesion > 50% of the coronary artery luminal diameter, cerebrovascular accident, or peripheral vascular disease with abnormal electrocardiograms and/or echocardiography.
  • History of drug or alcohol abuse.
  • Chronic liver disease.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Flow-mediated (endothelial-dependent) vasodilatation (FMD) difference (before vs after surgery)
Time Frame: 1 Year
1 Year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sheba Medical Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2009

Primary Completion (Actual)

November 1, 2014

Study Completion (Actual)

November 1, 2014

Study Registration Dates

First Submitted

December 12, 2008

First Submitted That Met QC Criteria

December 15, 2008

First Posted (Estimate)

December 16, 2008

Study Record Updates

Last Update Posted (Estimate)

May 6, 2016

Last Update Submitted That Met QC Criteria

May 5, 2016

Last Verified

May 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SHEBA-5431-08-DG-CTIL

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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