作者
Brennan Vogl, Agata Sularz, Scott Lilly, Vinod H Thourani, Brian R Lindman, Mohamad Alkhouli, Hoda Hatoum
发表日期
2024/4
期刊
Annals of biomedical engineering
卷号
52
期号
4
页码范围
888-897
出版商
Springer International Publishing
简介
Coexisting hypertension and aortic stenosis are common. Some studies showed that elevated blood pressures may be associated with progression of calcific aortic valve disease (CAVD) while others showed no correlation. Flow dynamics in the sinuses of Valsalva are considered key factors in the progression of CAVD. While the relationship between hemodynamics and CAVD is not yet fully understood, it has been demonstrated that they are tightly correlated. This study aims to investigate the effect of changing systolic and diastolic blood pressures (SBP and DBP, respectively) on sinus hemodynamics in relation to potential initiation or progression of CAVD after aortic valve replacement (AVR). Evolut R, SAPIEN 3 and Magna valves were deployed in an aortic root under pulsatile conditions. Using particle image velocimetry, the hemodynamics in the sinus were assessed. The velocity, vorticity, circulation ( and shear …
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