How local annular force and collagen density govern mitral annuloplasty ring dehiscence risk

EL Pierce, AW Siefert, DM Paul, SK Wells… - The Annals of thoracic …, 2016 - Elsevier
Background Annuloplasty ring dehiscence is a well described mode of mitral valve repair
failure. Defining the mechanisms underlying dehiscence may facilitate its prevention …

Transcatheter mitral valve repair therapies: evolution, status and challenges

D Espiritu, D Onohara, K Kalra, EL Sarin… - Annals of biomedical …, 2017 - Springer
Mitral regurgitation is a common cardiac valve lesion, developing from primary lesions of the
mitral valve or secondary to cardiomyopathies. Moderate or higher severity of mitral …

Repairable ex vivo model of functional and degenerative mitral regurgitation

H Morimura, Y Okamoto, J Takada… - European Journal of …, 2023 - academic.oup.com
OBJECTIVES Transcatheter mitral valve repair is an emerging alternative to the surgical
repair. This technology requires preclinical studies to assess efficacy in mitigating mitral …

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

A Basu, Z He - Cardiovascular Engineering and Technology, 2016 - Springer
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 …

The characteristics of a porcine mitral regurgitation model

B Li, Y Cui, D Zhang, X Luo, F Luo, B Li… - Experimental …, 2018 - jstage.jst.go.jp
The porcine mitral regurgitation (MR) model is a common cardiovascular animal model.
Standardized manufacturing processes can improve the uniformity and success rate of the …

Image-guided targeted mitral valve tethering with chordal encircling snares as a preclinical model of secondary mitral regurgitation

D Onohara, KS Suresh, M Silverman, Q He… - Journal of …, 2021 - Springer
Abstract Development of transcatheter mitral valve interventions has ushered a significant
need for large animal models of secondary mitral regurgitation. Though currently used heart …

Modelling of Lesions Associated with Functional Mitral Regurgitation in an Ex Vivo Platform

M Jaworek, F Lucherini, C Romagnoni, G Gelpi… - Annals of Biomedical …, 2017 - Springer
Functional mitral regurgitation (FMR) is a complex pathology involving valvular and
subvalvular structures reconfiguration, and its treatment is considered challenging. There is …

Bench models for assessing the mechanics of mitral valve repair and percutaneous surgery

AW Siefert, RL Siskey - Cardiovascular Engineering and Technology, 2015 - Springer
Rapid preclinical evaluations of mitral valve (MV) mechanics are currently best facilitated by
bench models of the left ventricle (LV). This review aims to provide a comprehensive …

[HTML][HTML] Detachment Force of the Helical Anchor in Mitral Annulus

G Zeng, G Li, Y Jia, S Chen, P Chen, Z He - Medicine in Novel Technology …, 2021 - Elsevier
Helical anchors are used in transcatheter mitral valve repair. The aim of the current study
was to investigate effect of helical anchor design, anchored position and biting depth on the …

Ex vivo model of functional mitral regurgitation using deer hearts

M Jaworek, A Mangini, E Maroncelli, F Lucherini… - Journal of …, 2021 - Springer
Transcatheter therapies are emerging for functional mitral regurgitation (FMR) treatment,
however there is lack of pathological models for their preclinical assessment. We …