Presentations of Hypertrophic Cardiomyopathy on Myocardial Perfusion Imaging

May 15, 2017 updated by: Szu-Ying Tsai, Far Eastern Memorial Hospital
Chest pain and myocardial ischemia are prevailing features in patients with hypertrophic cardiomyopathy (HCM). Recently introduced single-photon emission computed tomography (SPECT) cameras with solid-state cadmium-zinc-telluride (CZT) detectors have been shown to decrease imaging time and improved the imaging quality of gated myocardial perfusion imaging (MPI). The investigators also correlate the MPI parameters with echocardiographic parameters. This study is to examine the spatial distribution of stress perfusion abnormalities and tissue injury in patients with HCM using a CZT SPECT camera.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

The investigators will retrospectively evaluate myocardial perfusion patterns and cardiac function with Thallium (Tl)-201 gated dipyridamole MPI in patients with clinical diagnosis of HCM and patent coronary angiography between January 2013 and October 2016. The inclusion criteria included a spade-like configuration on left ventriculogram, or echocardiographic findings suggestive of HCM. The participants will be then divided into the following three groups: apical, concentric and septal forms. Regional perfusion would be analyzed using a 17-segment model from 0-4 degree (0=normal, to 4=absent perfusion); and summed stress score (SSS), summed rest score (SRS) and summed difference score (SDS) were calculated. Gated SPECT would be processed by quantitative gated SPECT (QGS) software (Cedars-Sinai Medical Center, Los Angeles, CA, USA) and ejection fraction phase analysis. Diastolic parameters would be also acquired by Doppler echocardiography, and correlated with MPI parameters.

Study Type

Observational

Enrollment (Anticipated)

100

Contacts and Locations

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

Study Contact

Study Locations

  • Taiwan
      • New Taipei City, Taiwan, 220
        • Recruiting
        • Far Eastern Memorial Hospital
        • Contact:

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

20 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

HCM patients with patent coronary artery who underwent MPI

Description

Inclusion Criteria:

  • clinical diagnosis of HCM and patent coronary angiography between January 2013 and October 2016.

Exclusion Criteria:

  • patient with prior myocardial ischemia, conduction abnormality, valvular disease or other cardiomyopathy

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
MPI results
Time Frame: January 2013 and October 2016.
including perfusion abnormalities, and ejection fraction phase analysis results
January 2013 and October 2016.

Collaborators and Investigators

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

Sponsor

Far Eastern Memorial Hospital

Investigators

  • Study Director: Yen-Wen Wu, MD, PhD, Far Eastern Memorial 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 (ACTUAL)

May 8, 2017

Primary Completion (ANTICIPATED)

August 31, 2017

Study Completion (ANTICIPATED)

June 30, 2018

Study Registration Dates

First Submitted

May 10, 2017

First Submitted That Met QC Criteria

May 10, 2017

First Posted (ACTUAL)

May 12, 2017

Study Record Updates

Last Update Posted (ACTUAL)

May 16, 2017

Last Update Submitted That Met QC Criteria

May 15, 2017

Last Verified

May 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 106057-E

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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.

Clinical Trials on Hypertrophic Cardiomyopathy

Clinical Trials on myocardial perfusion imaging

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Georgia

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe