Dallas Heart Study 2: Return Clinic Visit for the Dallas Heart Study Cohort

NCT ID: NCT00344903

Last Updated: 2010-07-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

3400 participants

Study Classification

OBSERVATIONAL

Study Start Date

2007-09-30

Study Completion Date

2009-12-31

Brief Summary

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The Dallas Heart Study (DHS-1) is a large, multi-ethnic, population-based epidemiological study designed to identify determinants of atherosclerotic heart disease (ASHD) in a representative United States (US) urban environment. This study completed enrollment in 2003.

Our objective is to pinpoint factors contributing to progression:

1. from health to ASHD risk;
2. from ASHD risk to subclinical ASHD; and
3. from subclinical to clinical ASHD.

Identification of the critical factors in these transitions will enable targeted implementation of appropriate therapy to interdict before clinical ASHD develops.

Detailed Description

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Early medical intervention in asymptomatic individuals at risk is the most effective strategy to combat atherosclerotic heart disease (ASHD). The major roadblock to effective ASHD prevention is that conventional tools to assess ASHD risk are inadequate and new methods are needed to identify susceptible individuals before the disease process is established. Other successful public-health screening programs have incorporated direct imaging procedures (e.g. mammography, colonoscopy); yet in ASHD, direct imaging of the vasculature has not been incorporated into the risk stratification algorithms.

The Dallas Heart Study (DHS-1) is a large, multi-ethnic, population-based epidemiological study designed to identify determinants of ASHD in a representative US urban environment. This study completed enrollment in 2003.

In DHS-2 we will transform the Dallas Heart Study from a cross-sectional health survey (DHS-1) into a longitudinal cohort study (DHS-2). We will perform state-of-the-art cardiovascular (CV) imaging coupled to biomarkers, genetic markers and classical ASHD risk factors. We will repeat the detailed clinical phenotyping performed between 2000-2003 to capture interval changes in ASHD risk and disease burden. Our objective is to pinpoint factors contributing to progression:

1. from health to ASHD risk;
2. from ASHD risk to subclinical ASHD; and
3. from subclinical to clinical ASHD.

Identification of the critical factors in these transitions will enable targeted implementation of appropriate therapy to interdict before clinical ASHD develops.

Conditions

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Atherosclerosis Congestive Heart Failure Left Ventricular Hypertrophy Diabetes Mellitus Hypertension Obesity Metabolic Syndrome X Myocardial Infarction

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* Age 35-70
* Participant in DHS-1 study completing visit 2 (blood sampling) and visit 3 (clinic visit)
* Provision of informed consent

Exclusion Criteria

* None--population study
Minimum Eligible Age

35 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Donald W. Reynolds Foundation

OTHER

Sponsor Role collaborator

University of Texas Southwestern Medical Center

OTHER

Sponsor Role lead

Responsible Party

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UT Southwestern Medical Center

Principal Investigators

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Helen Hobbs, MD

Role: STUDY_CHAIR

UT Southwestern Medical Center

Locations

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UT Southwestern Medical Center

Dallas, Texas, United States

Site Status

Countries

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United States

References

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Victor RG, Haley RW, Willett DL, Peshock RM, Vaeth PC, Leonard D, Basit M, Cooper RS, Iannacchione VG, Visscher WA, Staab JM, Hobbs HH; Dallas Heart Study Investigators. The Dallas Heart Study: a population-based probability sample for the multidisciplinary study of ethnic differences in cardiovascular health. Am J Cardiol. 2004 Jun 15;93(12):1473-80. doi: 10.1016/j.amjcard.2004.02.058.

Reference Type BACKGROUND
PMID: 15194016 (View on PubMed)

Kay FU, Abbara S, Joshi PH, Garg S, Khera A, Peshock RM. Identification of High-Risk Left Ventricular Hypertrophy on Calcium Scoring Cardiac Computed Tomography Scans: Validation in the DHS. Circ Cardiovasc Imaging. 2020 Feb;13(2):e009678. doi: 10.1161/CIRCIMAGING.119.009678. Epub 2020 Feb 18.

Reference Type DERIVED
PMID: 32066275 (View on PubMed)

Rader F, Franklin SS, Mirocha J, Vongpatanasin W, Haley RW, Victor RG. Superiority of Out-of-Office Blood Pressure for Predicting Hypertensive Heart Disease in Non-Hispanic Black Adults. Hypertension. 2019 Nov;74(5):1192-1199. doi: 10.1161/HYPERTENSIONAHA.119.13542. Epub 2019 Sep 16.

Reference Type DERIVED
PMID: 31522619 (View on PubMed)

Garg S, de Lemos JA, Matulevicius SA, Ayers C, Pandey A, Neeland IJ, Berry JD, McColl R, Maroules C, Peshock RM, Drazner MH. Association of Concentric Left Ventricular Hypertrophy With Subsequent Change in Left Ventricular End-Diastolic Volume: The Dallas Heart Study. Circ Heart Fail. 2017 Aug;10(8):e003959. doi: 10.1161/CIRCHEARTFAILURE.117.003959.

Reference Type DERIVED
PMID: 28775115 (View on PubMed)

Cusano NE, Maalouf NM, Wang PY, Zhang C, Cremers SC, Haney EM, Bauer DC, Orwoll ES, Bilezikian JP. Normocalcemic hyperparathyroidism and hypoparathyroidism in two community-based nonreferral populations. J Clin Endocrinol Metab. 2013 Jul;98(7):2734-41. doi: 10.1210/jc.2013-1300. Epub 2013 May 20.

Reference Type DERIVED
PMID: 23690312 (View on PubMed)

Other Identifiers

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DHS-2-001

Identifier Type: -

Identifier Source: org_study_id

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