Impact of pressure recovery on the assessment of pulmonary homograft function using Doppler ultrasound.
Ross procedure
energy loss index
homograft
pressure recovery
right ventricular afterload
valvular hemodynamics
Journal
Physiological reports
ISSN: 2051-817X
Titre abrégé: Physiol Rep
Pays: United States
ID NLM: 101607800
Informations de publication
Date de publication:
12 2022
12 2022
Historique:
revised:
01
08
2022
received:
14
07
2022
accepted:
02
08
2022
entrez:
13
12
2022
pubmed:
14
12
2022
medline:
15
12
2022
Statut:
ppublish
Résumé
Relevant pressure recovery (PR) has been shown to increase functional stenotic aortic valve orifice area and reduce left ventricular load. However, little is known about the relevance of PR in the pulmonary artery. The study examined the impact of PR using 2D-echocardiography in the pulmonary artery distal to the degenerated homograft in patients after Ross surgery. Ninety-two patients with pulmonary homograft were investigated by Doppler echocardiography (mean time interval after surgery 31 ± 26 months). PR was measured as a function of pulmonary artery diameter determined by computed tomography angiography. Homograft orifice area, valve resistance, and transvalvular stroke work were calculated with and without considering PR. PR decreased as the pulmonary artery diameter increased (r = -0.69, p < 0.001). Mean PR was 41.5 ± 7.1% of the Doppler-derived pressure gradient (P
Identifiants
pubmed: 36511522
doi: 10.14814/phy2.15432
pmc: PMC9746035
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e15432Informations de copyright
© 2022 The Authors. Physiological Reports published by Wiley Periodicals LLC on behalf of The Physiological Society and the American Physiological Society.
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