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Echocardiographic and morphological evaluation of the right heart after closure of atrial septal defects

Published online by Cambridge University Press:  01 December 2008

Pin Sun ,
Zhi-Bin Wang ,
Chuan-Jin Xu ,
Su-Min Yang  and
Lei Jiang
Pin Sun*
Affiliation:
Department of Cardiac Ultrasound, Affiliated Hospital of Medical College, Qingdao University, China
Zhi-Bin Wang
Affiliation:
Department of Cardiac Ultrasound, Affiliated Hospital of Medical College, Qingdao University, China
Chuan-Jin Xu
Affiliation:
Department of Cardiology, Affiliated Hospital of Medical College, Qingdao University, China
Su-Min Yang
Affiliation:
Department of Cardiac Surgery, Affiliated Hospital of Medical College, Qingdao University, China
Lei Jiang
Affiliation:
Department of Cardiac Surgery, Affiliated Hospital of Medical College, Qingdao University, China
*
Correspondence to: Pin Sun, Affiliated Hospital of Medical College, Qingdao University, 16 Jiangsu Road, Qingdao City 266003, Peoples Republic of China. Tel: 86-532-8584-8885; Fax: 86-532-8291-1999; E-mail: [email protected]
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Abstract

Objective

To evaluate echocardiographically the function and morphology of the right heart subsequent to transcatheter closure of atrial septal defects.

Methods

We performed echocardiographic studies in 73 patients undergoing transcatheter closure of atrial septal defects 1 day prior to closure, and then 3 days and 3 months after closure. We calculated the antero-posterior diameter of the right ventricle, the transverse diameter and length of the right atrium, the pulmonary arterial pressure, and the velocities of systolic movement and early and late diastolic movement of the basal parietal walls of the right ventricle.

Results

The atrial septal defects varied in size between 8 and 33 millimetres, and were closed using occluders measuring from 10 to 40 millimetres. At 3 days after closure, the antero-posterior diameter of the right ventricle, the transverse diameter and length of the right atrium, the pulmonary arterial pressure, and the velocities of mural motion were all significantly decreased. After 3 months, the size of the right heart had more or less normalized.

Conclusions

Transcatheter closure of atrial septal defects produces marked improvement in the function and geometry of the chambers of the right heart, reducing pulmonary arterial pressure as well as abolishing the interatrial shunt.

Keywords

Ultrasonographycongenital heart diseasetranscatheter closureright heart function
Type
Original Article
Information
Cardiology in the Young , Volume 18 , Issue 6 , December 2008 , pp. 593 - 598
Copyright
Copyright © Cambridge University Press 2008

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