NCT02791061

Brief Summary

The primary aims of this study are to 1. Develop an automated method of quantitation of RV remodeling in terms of regional RV surface curvature and area strain and assess the feasibility, repeatability and accuracy in normal subjects and patients with repaired TOF, patients with PS The secondary study aims of this study are to 1\. Compare the differences of RV remodeling in repaired TOF patients, PS patients with sex and age-matched controls 2, Assess the relationship of our proposed parameters to global RV function and exercise capacity in repaired TOF patients and PS patient

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
54

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jan 2013

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2013

Completed
3.4 years until next milestone

First Submitted

Initial submission to the registry

May 31, 2016

Completed
6 days until next milestone

First Posted

Study publicly available on registry

June 6, 2016

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2017

Completed
Last Updated

March 31, 2017

Status Verified

March 1, 2017

Enrollment Period

4.8 years

First QC Date

May 31, 2016

Last Update Submit

March 30, 2017

Conditions

Outcome Measures

Primary Outcomes (1)

  • First occurrence of cardiovascular event

    1 Year

Study Arms (2)

Control

Healthy Volunteers will undergo the following studying procedures: Cardiovascular Magnetic Resonance Imagine (MRI) Cardiopulmonary exercise testing (CPET) Echocardiography

Other: Cardiovascular Magnetic Resonance Imagine (MRI)Other: Cardiopulmonary exercise testing (CPET)Other: Echocardiography

Congenital Disease

Patients will undergo the following studying procedures: Cardiovascular Magnetic Resonance Imagine (MRI) Cardiopulmonary exercise testing (CPET) Echocardiography

Other: Cardiovascular Magnetic Resonance Imagine (MRI)Other: Cardiopulmonary exercise testing (CPET)Other: Echocardiography

Interventions

MRI uses interaction of the magnetic properties of body tissues with strong magnetic fields to create images.

Congenital DiseaseControl

Cardiopulmonary exercise testing (CPET) is non-invasive simultaneous measurement of the cardiovascular and respiratory system during exercise to assess a patient's exercise capacity.

Congenital DiseaseControl

To measure heart chamber size, heart function, blood vessel size and blood vessel function. These measurements will help us understand the type and severity of heart failure.

Congenital DiseaseControl

Eligibility Criteria

Age13 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

34 patients diagnosed will Tetralogy of Fallots or Pulmonary Stenosis will be recruited from primary care clinic, outpatient clinics and hospital ward in NHCS. 20 Healthy Volunteer control group.

You may qualify if:

  • Survivors of TOF repair more than one year after repair without pulmonary stenosis (Doppler gradient more than 30mmHg) OR
  • Patients with moderate or severe pulmonary stenosis (Echo Doppler gradient more than 30mmHg)
  • Patients without prior Pulmonary Valve Replacement (PVR)
  • Written informed Consent obtained
  • Aged 13 to 80 years old

You may not qualify if:

  • Age less than 13
  • Contraindication to MRI Examination
  • Cardiac Pacemaker
  • Brain Aneurysm OR clips
  • Electronic implants OR prosthesis
  • Eye metal foreign body injury
  • Severe claustrophobia
  • Known severe impairment, glomerular filtration rate GFR less than 30 ml/min/BSA
  • Non Cardiac illness with life expectancy of less than 2 years
  • Previous heart kidney liver or lung transplantation Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Heart Centre Singapore

Singapore, Singapore, 169609, Singapore

Location

MeSH Terms

Conditions

Heart Defects, Congenital

Interventions

Exercise Test

Condition Hierarchy (Ancestors)

Cardiovascular AbnormalitiesCardiovascular DiseasesHeart DiseasesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Intervention Hierarchy (Ancestors)

Heart Function TestsDiagnostic Techniques, CardiovascularDiagnostic Techniques and ProceduresDiagnosisRespiratory Function TestsDiagnostic Techniques, Respiratory SystemErgometryInvestigative Techniques

Study Officials

  • Ru San Tan, MBBS

    National Heart Centre Singapore

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 31, 2016

First Posted

June 6, 2016

Study Start

January 1, 2013

Primary Completion

October 1, 2017

Study Completion

October 1, 2017

Last Updated

March 31, 2017

Record last verified: 2017-03

Data Sharing

IPD Sharing
Will not share

Locations