Doppler echocardiographic assessment of the St. Jude Medical prosthetic valve in the aortic position using the continuity equation.

ER Chafizadeh, WA Zoghbi - Circulation, 1991 - Am Heart Assoc
To test whether the continuity equation can be applied to the noninvasive assessment of
prosthetic aortic valve function, Doppler echocardiography was performed in 67 patients …

Features and prognosis of exertional syncope in light-chain associated AL cardiac amyloidosis

B Chamarthi, SW Dubrey, K Cha, M Skinner… - American Journal of …, 1997 - ajconline.org
Primary (AL) amyloidosis is a multisystem disease caused by plasma cell dyscrasia and
characterized by the extracellular deposition of immunoglobulin light chains within various …

Estimation of the shear stress on the surface of an aortic valve leaflet

MW Weston, DV LaBorde, AP Yoganathan - Annals of Biomedical …, 1999 - Springer
The limited durability of xenograft heart valves and the limited supply of allografts have
sparked interest in tissue engineered replacement valves. A bioreactor for tissue engineered …

Cardiac valve replacement: a bioengineering approach

SA Korossis, J Fisher, E Ingham - Bio-medical materials and …, 2000 - content.iospress.com
The second most common major heart operation in the western world is valve replacement.
Any one of the four heart valves may become either so stenotic or regurgitant that it needs to …

[HTML][HTML] In vitro comparison of aortic valve movement after valve-preserving aortic replacement

R Fries, T Graeter, D Aicher, H Reul, C Schmitz… - The Journal of Thoracic …, 2006 - Elsevier
OBJECTIVE: In aortic valve regurgitation and aortic dilatation, preservation of the aortic
valve is possible by means of root remodeling (Yacoub procedure) or valve reimplantation …

Pressure recovery in aortic stenosis: an in vitro study in a pulsatile flow model

W Voelker, H Reul, T Stelzer, A Schmidt… - Journal of the American …, 1992 - Elsevier
Objectives. This study was designed to study pressure recovery in various models of aorlic
valve stenosis by performing hemodynamic measurements under physiologic conditions in …

Comparison of valvular resistance, stroke work loss, and Gorlin valve area for quantification of aortic stenosis: an in vitro study in a pulsatile aortic flow model

W Voelker, H Reul, GN Ing, TS Ing, BS Ing, AS Ing… - Circulation, 1995 - Am Heart Assoc
Background Valvular resistance and stroke work loss have been proposed as alternative
measures of stenotic valvular lesions that may be less flow dependent and, thus, superior …

Cavitation potential of mechanical heart valve prostheses

T Graf, H Fischer, H Reul… - The International Journal …, 1991 - journals.sagepub.com
Just like technical check valves, the function of mechanical heart valve prostheses may
presumably also lead to cavitation effects during valve closure. Due to the waterhammer …

[图书][B] Relative blood damage in the three phases of a prosthetic heart valve flow cycle

TC Lamson - 1993 - search.proquest.com
Blood flow through a prosthetic heart valve operating in a ventricular assist device can be
subdivided into three phases:(a) forward flow through an open valve,(b) rapid valve closure …

Impact of mechanical heart valve prosthesis sound on patients' quality of life

SA Blome-Eberwein, D Mrowinski, J Hofmeister… - The Annals of thoracic …, 1996 - Elsevier
BACKGROUND.: The “click” sound of mechanical heart valve prostheses has been
recognized as a disturbing factor for some patients after mechanical heart valve …