Visceral Abdominal Fat, Non Alcoholic Fatty Liver Diseases and Asymptomatic Coronary Atherosclerosis

January 24, 2011 updated by: Ziv Hospital

Visceral fat or peri-omental fat is increasingly associated with metabolic syndrome, a condition carrying a high risk of coronary artery disease. The independent role of Visceral Fat in cardiovascular risk remains unclear.

Patients with excess of visceral fat and NAFLD patients will have higher prevalence of coronary atherosclerosis plaques independently by metabolic syndrome diagnosis. Suggesting that the presence of visceral fat and/or fatty liver will be considered an important condition to optimize the cardiovascular risk stratification

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Abstract Background: Visceral fat or peri-omental fat is increasingly associated with metabolic syndrome, a condition carrying a high risk of coronary artery disease. The independent role of Visceral Fat in cardiovascular risk remains unclear. Aim: Evaluate the relationship between visceral fat, fatty liver and asymptomatic coronary atherosclerosis in patients with the major cardiovascular risk factors and with or without metabolic syndrome.

Methods: 50 patients (age 53±7) with excess of visceral fat visceral, 30 patients with NAFLD and 30 sex, age matched individuals without NAFLD will be recruited . All will be asymptomatic for cardiac related symptoms. Subjects with clinical history of ischemic heart disease, cerebrovascular disease, renal failure, cancer and allergy to lode will be excluded. Coronary artery disease (CAD) will be defined as coronary plaques, with obstructive (70%) or non obstructive lesions (30%). Degree of fatty infiltration (ultrasound), Visceral fat amount (CT), coronary plaques and stenosis (coronary computed tomography angiography,CCTA), markers of insulin resistance,lipotoxicity, systemic inflammation, and oxidant-antioxidant status will be measured measured.

Expected Results: Patients with excess of visceral fat and patients with NAFLD will have higher prevalence of coronary plaques and higher prevalence of non obstructive coronary stenosis, higher HOMA CRP, and TG serum levels than controls. In patients with excess of visceral fat , more segments with atherosclerosis per patient will be detected . Multiple regression analysis is expected to show that visceral fat and fatty liver are strong predictors of coronary atherosclerosis independently by metabolic syndrome diagnosis and independently by markers of insulin resistance, lipotoxicity and inflammation.

Conclusion: Patients with excess of visceral fat and NAFLD patients will have higher prevalence of coronary atherosclerosis plaques independently by metabolic syndrome diagnosis. Suggesting that the presence of visceral fat and/or fatty liver will be considered an important condition to optimize the cardiovascular risk stratification.

Study Type

Observational

Enrollment (Anticipated)

150

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
      • Safed, Israel, 13100
        • Liver Clinic
      • Safed, Israel, Israel
        • Ziv medical center liver unit

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

40 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

50 patients (age 53±7) with excess of visceral fat visceral, 30 patients with NAFLD and 30 sex, age matched individuals without NAFLD will be recruited

Description

Inclusion Criteria:

  • excess of visceral fat with the major cardiovascular risk factors for coronary CT,
  • diagnosis of fatty liver defined by the presence of bright liver echo pattern, absence of alcohol use (<20g/day),
  • negative serology for hepatitis B or C diagnosis,
  • negative auto antibodies,
  • absence of history of another known liver disease,
  • 30 sex-age-matched individual with cardiovascular risk factors and without NAFLD and without visceral fat will be considered as controls.
  • Informed consent will be obtained from each individual and the study will be presented to the the local ethics committee.

Exclusion Criteria:

  • subjects with severe obesity (BMI>35),
  • recent history of acute illness,
  • clinical history of ischemic heart disease and cerebro vascular disease,
  • typical chest pain,
  • previous coronary artery disease,
  • conventional coronary angiography,
  • percutaneous interventions,
  • coronary by pass grafting,
  • renal failure,
  • cancer patients,
  • subjects who take drugs that induces hepatic steatosis ( corticosteroids, estrogens, methotrexate, amiodarone and others).
  • Exclusion criteria for coronary computed tomography angiography will included also the presence of multiple ectopic beats, atrial fibrillation, heart rate more than 75/min despite therapy, severe lung disease, or a history of allergic reaction to iodine-containing contrast agents.

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
patients with NAFLD
Procedure: patients with NAFLD
patients with NAFLD
excess of visceral fat
Procedure: excess of visceral fat
excess of visceral fat

Collaborators and Investigators

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

Sponsor

Ziv Hospital

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

February 1, 2009

Primary Completion (Actual)

November 1, 2009

Study Completion (Anticipated)

December 1, 2010

Study Registration Dates

First Submitted

January 18, 2011

First Submitted That Met QC Criteria

January 24, 2011

First Posted (Estimate)

January 25, 2011

Study Record Updates

Last Update Posted (Estimate)

January 25, 2011

Last Update Submitted That Met QC Criteria

January 24, 2011

Last Verified

January 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 0052-08

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.

Clinical Trials on Atherosclerosis

Clinical Trials on patients with NAFLD

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Finland

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe