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Baseline intracardiac echocardiography predicts haemodynamic changes and Doppler velocity patterns during follow-up after percutaneous pulmonary valve implantation

Part of: Advanced Imaging

Published online by Cambridge University Press:  18 June 2021

Gareth J. Morgan ,
Salvador A. Rodriguez Open the ORCID record for Salvador A. Rodriguez [Opens in a new window] ,
Ryan Leahy ,
Jess Randall  and
Jenny E. Zablah
Gareth J. Morgan*
Affiliation:
The Heart Institute, Children’s Hospital Colorado, Aurora, Colorado, USA Department of Cardiology, University of Colorado Hospital, Aurora, Colorado, USA School of Medicine, Anschutz Medical Campus, University of Colorado, Boulder, Colorado, USA
Salvador A. Rodriguez
Affiliation:
The Heart Institute, Children’s Hospital Colorado, Aurora, Colorado, USA School of Medicine, Anschutz Medical Campus, University of Colorado, Boulder, Colorado, USA
Ryan Leahy
Affiliation:
The Heart Institute, Children’s Hospital Colorado, Aurora, Colorado, USA School of Medicine, Anschutz Medical Campus, University of Colorado, Boulder, Colorado, USA
Jess Randall
Affiliation:
The Heart Institute, Children’s Hospital Colorado, Aurora, Colorado, USA School of Medicine, Anschutz Medical Campus, University of Colorado, Boulder, Colorado, USA
Jenny E. Zablah
Affiliation:
The Heart Institute, Children’s Hospital Colorado, Aurora, Colorado, USA School of Medicine, Anschutz Medical Campus, University of Colorado, Boulder, Colorado, USA
*
Author for correspondence: Gareth J. Morgan, MD, The Heart Institute, Children’s Hospital Colorado, 13123 East 16th Avenue, Box 100, Aurora, CO 80045, USA. Tel: +1 7207773379; Fax: +7207777177. E-mail: Gareth.Morgan@childrenscolorado.org
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Abstract

Background:

Intracardiac echocardiography Doppler-derived gradients have previously been shown to correlate with post-procedure echocardiographic evaluations when compared with invasive gradients measured during percutaneous pulmonary valve implantation, suggesting that intracardiac echocardiography could offer an accurate and predictable starting point to estimate valve function after percutaneous pulmonary valve implantation.

Methods:

We performed a retrospective chart review of 51 patients who underwent percutaneous pulmonary valve implantation between September 2018 and December 2019 in whom intracardiac echocardiography was performed immediately after valve implantation. We evaluated the correlation between intracardiac echocardiography gradients and post-procedural Doppler-derived gradients. Among the parameters assessed, those which demonstrated the strongest correlation were used to create a predictive model of expected echo-derived gradients after percutaneous pulmonary valve implantation. The equation was validated on the same sample data along with a subsequent cohort of 25 consecutive patients collected between January 2020 and July 2020.

Results:

All the assessed correlation models between intracardiac echocardiography evaluation and post-procedure transthoracic echocardiographic assessments were statistically significant, presenting moderate to strong correlations. The strongest relationship was found between intracardiac echocardiography mean gradients and post-procedural transthoracic echocardiographic mean gradients. Therefore, an equation was created based on the intracardiac echocardiography-derived mean gradient, to allow prediction of the post-procedural and follow-up transthoracic echocardiographic-derived mean gradients within a range of ±5 mmHg from the observed value in more than 80% of cases.

Conclusions:

There is a strong correlation between intracardiac echocardiography and post-procedure transthoracic echocardiographic. This allowed us to derive a predictive equation that defines the expected transthoracic echocardiographic Doppler-derived gradient following the procedure and at out-patient follow-up after percutaneous pulmonary valve implantation.

Keywords

Intracardiac echocardiographypercutaneous pulmonary valve implantationpredictive equationCHD
Type
Original Article
Information
Cardiology in the Young , Volume 32 , Issue 3 , March 2022 , pp. 444 - 450
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Copyright
© The Author(s), 2021. Published by Cambridge University Press

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