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Haemodynamics and Function of the Atria in Congenital Heart Disease by Cardiovascular Magnetic Resonance

Tetralogy of Fallot Clinical Trial

Official title:
Haemodynamics and Function of the Atria in Patients With Congenital Heart Defects - Pilot Study by Cardiovascular Magnetic Resonance

Clinical Trial Summary

The purpose of this study is to determine whether patients with repaired congenital heart disease show differences in size or function of their heart atria compared to normal controls and depending on the nature of their heart disease.

Clinical Trial Description

Atrial function is important for good ventricular filling and function. In patients with impaired cardiac function, atrial contraction is even more important. So far, the size and function of the atria have been assessed two-dimensionally by angiography and by echocardiography. However, these do not allow exact characterization of the volumetric changes of the atria during the cardiac cycle. Recently, cardiac magnetic resonance (CMR) has been used to assess size and function of the left atrium in adults. Little data are available about function and volume of the atria in children and the role of the atria in congenital heart disease (CHD).

The study will recruit patients with CHD (n=40) and normal controls (n=10). The patient group will be composed by patients suffering from the following conditions: coarctation of the aorta (n=10), tetralogy of Fallot (n=10), transposition of the great arteries after atrial switch (Senning procedure) (n=10), transposition of the great arteries after arterial switch operation (n=10).

The study consists of measurements of sizes and function of the right and the left atrium, respectively, by examining three-dimensional volume changes across the heart cycle, and of phase contrast measurements of blood flow across the valves of the heart. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02161471
Study type Observational
Source University Children's Hospital, Zurich
Contact
Status Active, not recruiting
Phase
Start date October 2009
Completion date December 2020
View Details
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