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Aortic StenosisNCT00774657

Ventricular Remodeling In Patients With Aortic Stenosis Assessed Echocardiography

An observational study of Aortic Stenosis, run by Lahey Clinic at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This preliminary study will compare the effectiveness of two-dimensional and three-dimensional echocardiographic measurements of wall thickness and left ventricular mass in patients with Aortic Stenosis Read more about this study

Who is it for?
Ages 18 to 90 years
Conditions the study is for
Aortic Stenosis
How many people
0 participants
Where
1 siteUnited States
Study dates
Sep 2008to Feb 2012
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Lahey Clinic patients who have been referred to the echocardiography lab for clinical indications, found to have a aortic stenosis

Who may be able to join

  • Subjects more than 18 yrs of age through 90 yrs of age
  • Both male and female
  • Patients with moderate or severe isolated Aortic Stenosis
  • Patients who have been referred for both two-dimensional and three- dimensional echocardiographies.

Who cannot join

  • Poor acoustic windows
  • h/o CAD and wall motion abnormality

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Lahey Clinic, Inc.

    Burlington, Massachusetts, 01805

Other trials in United States

About this study

Official title: Patterns Of Left Ventricular Remodeling In Patients With Aortic Stenosis Assessed By Two-Dimensional And Three-Dimensional Echocardiography

This preliminary study will compare the effectiveness of two-dimensional and three-dimensional echocardiographic measurements of wall thickness and left ventricular mass in patients with Aortic Stenosis

Read the detailed description

This study will evaluate left ventricular patterns of remodeling and hypertrophy in patients with aortic stenosis, and compare two-dimensional echocardiography measurements (wall thickness) with three-dimensional echocardiography data(left ventricular mass). Along with a second objective to assess Doppler diastolic filling indices associated with the various patterns of left ventricular remodeling.

Previous studies(see reference list) were primarily derived from two-dimensional echo data set(based on wall thickness). Various patterns of left ventricular remodeling have been described in response to increased pressure overload.

Three-dimensional echocardiography is a relatively new technique that is being increasingly used in the Echocardiography Lab in selected patients. This technique holds promise of being more accurate for volume-related measurements than the standard 2-dimensional echocardiography techniques.

Conditions
Aortic Stenosis
Keywords
Aortic Stenosis, Valvular heart disease, Heart disease, Cardiovascular disease, Two dimensional echocardiography, Three dimensional echocardiography
Medical subject headings
Aortic Valve Stenosis, Heart Valve Diseases, Heart Diseases, Cardiovascular Diseases

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Evaluate 2-dimensional and 3-dimensional echocardiography for LV patterns of remodeling and hypertrophy

    Measured: 1 hour

Secondary outcomes (1)
  1. Assess doppler diastolic filling indices for patterns of LV remodeling

    Measured: 1 hour

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Oct 2008 (estimated)
  2. Study startSep 2008
  3. Primary completionFeb 2012
  4. Study completionFeb 2012

Why it stopped: Unable to identify and recruit suitable study subjects

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00774657
Sponsor's protocol ID
2008-090
Status last verified
Feb 2012
First submitted
16 Oct 2008
Last updated
17 Feb 2012
Results posted
No
Data monitoring committee
No

Publications

  • Faggiano P, Rusconi C, Ghizzoni G, Sabatini T. Left ventricular remodeling and function in adult aortic stenosis. Angiology. 1994 Dec;45(12):1033-8. doi: 10.1177/000331979404501206.

    PubMed 7985830
  • Kupari M, Turto H, Lommi J. Left ventricular hypertrophy in aortic valve stenosis: preventive or promotive of systolic dysfunction and heart failure? Eur Heart J. 2005 Sep;26(17):1790-6. doi: 10.1093/eurheartj/ehi290. Epub 2005 Apr 28.

    PubMed 15860517
  • Salcedo EE, Korzick DH, Currie PJ, Stewart WJ, Lever HM, Goormastic M. Determinants of left ventricular hypertrophy in patients with aortic stenosis. Cleve Clin J Med. 1989 Sep;56(6):590-6. doi: 10.3949/ccjm.56.6.590.

    PubMed 2530009
  • Jenkins C, Bricknell K, Hanekom L, Marwick TH. Reproducibility and accuracy of echocardiographic measurements of left ventricular parameters using real-time three-dimensional echocardiography. J Am Coll Cardiol. 2004 Aug 18;44(4):878-86. doi: 10.1016/j.jacc.2004.05.050.

    PubMed 15312875

Questions about this trial

What is this clinical trial studying?

An observational study of Aortic Stenosis, run by Lahey Clinic at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 17 Feb 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Evaluate 2-dimensional and 3-dimensional echocardiography for LV patterns of remodeling and hypertrophy (time frame: 1 hour). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00774657, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Feb 2012.

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