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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04091919
Other study ID # LV/RV S and SR with ASD device
Secondary ID
Status Completed
Phase
First received
Last updated
Start date January 1, 2019
Est. completion date December 30, 2020

Study information

Verified date July 2021
Source Assiut University
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The effect of Atrial Septal Defect (ASD) closure by using larger devices on the improvement in biventricular function remains an area of active research. Therefore, the aim of the current study is to assess the degree of improvement in biventricular dimensions and function by using 2-Dimensional echocardiography derived Strain and Strain Rate and Tissue Doppler. Moreover, to identify the relationship between the left and right ventricular systolic and diastolic function and device size.


Description:

In most echocardiographic studies, left ventricle (LV) systolic function was normal in the patients with ASD and only a few cases had a reduced LV ejection fraction with severe right ventricle (RV) volume overload. The device closure of ASD increases immediately the blood flow to the left ventricle and may unmask subtle abnormalities in systolic and diastolic function. Currently, clinical research in cardiac mechanics is moving from short- and long-axis LV and RV function and ejection fraction to two and three- dimensional (2D, 3D) ventricular deformation studies (Strain and Strain Rate quantification). These methods are independent of ventricular geometry and allow quantification of myocardial motion and deformation in different directions (longitudinal, radial, and circumferential), while conventional methods mainly rely on the assessment of radial function. Strain imaging has also been used to demonstrate that patients who underwent device closure of an ASD had better LV and RV longitudinal deformation than patients who underwent surgical closure of an ASD. However, the effect of device size on the LV systolic and diastolic function is still under investigations. For all these reasons the researchers intend to measure RV and LV haemodynamic changes by 2-D Transthoracic Echocardiography (TTE) derived Tissue Doppler and Strain quantification in ASD before and after transcatheter closure with special emphasis on the assessment of the relationship between device size and biventricular systolic and LV diastolic function.


Recruitment information / eligibility

Status Completed
Enrollment 50
Est. completion date December 30, 2020
Est. primary completion date October 30, 2020
Accepts healthy volunteers
Gender All
Age group 11 Years and older
Eligibility Inclusion Criteria: - All ASD patients who have been already selected and suitable for intervention before the starting time of the study. The criteria for ASD intervention are either haemodynamically significant shunt fraction (Qp/Qs > 1.5) or echocardiographic signs of right heart dilation or RV volume overload and pulmonary hypertension related symptoms. Exclusion Criteria: - Patients with a large stretched Secundum ASD = 36 mm, those with insufficient ASD rims (except the aortic rim), sinus venosus or primum type ASD, irreversible pulmonary hypertension, other associated structural heart diseases, coronary artery disease, LV systolic dysfunction, atrial fibrillation, or hypertension.

Study Design


Related Conditions & MeSH terms


Intervention

Diagnostic Test:
2D- Transthoracic Echocardiography (TTE)
2D- Transthoracic Echocardiography (TTE) derived Tissue Doppler and Strain imaging

Locations

Country Name City State
Egypt Assiut University Hospital Assiut
Egypt Ain Shams University Hospital Cairo

Sponsors (1)

Lead Sponsor Collaborator
Ayman khairy Mohamed

Country where clinical trial is conducted

Egypt, 

References & Publications (4)

Balci KG, Balci MM, Aksoy MM, Yilmaz S, Aytürk M, Dogan M, Yeter E, Akdemir R. Remodeling process in right and left ventricle after percutaneous atrial septal defect closure in adult patients. Turk Kardiyol Dern Ars. 2015 Apr;43(3):250-8. doi: 10.5543/tkd — View Citation

Bussadori C, Oliveira P, Arcidiacono C, Saracino A, Nicolosi E, Negura D, Piazza L, Micheletti A, Chessa M, Butera G, Dua JS, Carminati M. Right and left ventricular strain and strain rate in young adults before and after percutaneous atrial septal defect — View Citation

Lange A, Coleman DM, Palka P, Burstow DJ, Wilkinson JL, Godman MJ. Effect of catheter device closure of atrial septal defect on diastolic mitral annular motion. Am J Cardiol. 2003 Jan 1;91(1):104-8. — View Citation

Wu ET, Akagi T, Taniguchi M, Maruo T, Sakuragi S, Otsuki S, Okamoto Y, Sano S. Differences in right and left ventricular remodeling after transcatheter closure of atrial septal defect among adults. Catheter Cardiovasc Interv. 2007 May 1;69(6):866-71. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Measuring of the biventricular geometrical changes before and after ASD device closure The LV and RV geometrical changes of the ASD group will be evaluated by using standard 2D Transthoracic Echocardiography before, 24 hours and one month after transcatheter ASD device closure procedure. The geometrical changes include LV and RV dimensions, pressure and wall masses. 1-3 month
Primary Measure change from baseline in the biventricular function of the ASD group Change from baseline in Biventricular systolic function and LV diastolic function of the ASD group will be measured by using 2D Echocardiography (derived Strain, Strain Rate and Tissue Doppler Imaging) at 24 hours and one month after transcatheter ASD device closure procedure. 1-3 month
Primary Measure the biventricular geometry and function of the control group The control group LV/RV geometry and function values will be evaluated by using 2D Transthoracic Echocardiography. Baseline
Primary Measure the relationship between the geometrical and function changes and device size of the ASD group The waist size of the selected device that will be used in transcatheter closure of the ASD will be documented according to the diameter of defect by using Transoesophageal Echocardiography before and during the closure procedure. Then, the relationship between the LV/RV geometrical and function changes after transcatheter closure and the used device size will be measured. 1-3 month