Annulus Tension on the Tricuspid Valve: An In-Vitro Study

Annulus tension (AT) is defined as leaflet tension per unit length of the annulus circumference. AT was investigated to understand tricuspid valve (TV) annulus mechanics. Ten porcine TVs were mounted on a right ventricle rig with an annulus plate to simulate TV closure. The TVs were mounted on the a...

Full description

Saved in:
Bibliographic Details
Published in:Cardiovascular engineering and technology 2016-09, Vol.7 (3), p.270-279
Main Authors: Basu, Avik, He, Zhaoming
Format: Article
Language:English
Subjects:
Animals
Annuli
Biomechanical Phenomena - physiology
Biomedical Engineering and Bioengineering
Biomedicine
Cardiology
Engineering
Heart valves
Models, Cardiovascular
Papillary Muscles - physiology
Segments
Surgery
Swine
Tricuspid Valve - physiology
Variance analysis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Annulus tension (AT) is defined as leaflet tension per unit length of the annulus circumference. AT was investigated to understand tricuspid valve (TV) annulus mechanics. Ten porcine TVs were mounted on a right ventricle rig with an annulus plate to simulate TV closure. The TVs were mounted on the annulus plate in a normal and dilated TV annulus sizes, and closed under transvalvular pressure of 40 mmHg with the annulus held peripherally by wires. Anterior papillary muscle (PM) and septal PM were displaced in the dilated annulus. Wire forces were measured, and ATs (N/m) were calculated. Clover repair was performed in the dilated TV state subsequently, and AT was calculated again. A one-way ANOVA and Tukey’s HSD test were used to test significances between the different TV states along each annulus segment with p  
ISSN:1869-408X
1869-4098
DOI:10.1007/s13239-016-0267-9