yet the aortic valve will open and close nearly 2 billion times in a person's lifetime, this results in a high probability that the aortic valve will be damaged. In addition, bacterial infection, aging and other factors could also threaten the health of the aortic valve, resulting in aortic...
Transcatheter aortic valve replacementCase reportBACKGROUND. Severe aortic stenosis (AS) can present insidiously, with the end stages resulting in significant valvular鈥搃nduced cardiomyopathy and can lead to cardiogenic shock (CS). Such cases result in a myriad of complex manifestations and are often...
Stages according to current American College of Cardiology/American Heart Association guidelines. AS = aortic stenosis; AVA = aortic valve area; AVR = aortic valve replacement; BAV = balloon aortic valvulopasty; HFrEF = heart failure with reduced ejection fraction; LGE-MRI = late gadolinium ...
known as receptors of LDL21,22,23, in the aortic valve of C57BL/6J mice, to identify the mechanism of LDL accumulation. The expression of SR-BI and CD36 was mainly localized in the C.A. region of the valve (Fig.1i). In the ex vivo LDL uptake...
Preoperative visit-care for transcatheter aortic valve replacement (TAVR) plays a crucial role in improving the quality of care and patient safety. However, preoperative care for TAVR patients is still in its early stages in China, with the care often being experience-based. The application of re...
Planned aortic valve intervention Patients with anticipated aortic valve replacement in the near future should generally be excluded from these trials. Cardiomyopathy Temporal variability in myocardial function may confound measurement of the effect of therapy on hemodynamic progression (eg, Vpeak may be in...
Circulatory efficiency reflects the ratio between total left ventricular work and the work required for maintaining cardiovascular circulation. The effect of severe aortic valve stenosis (AS) and aortic valve replacement (AVR) on left ventricular/circulatory mechanical power and efficiency is not yet full...
However the presence or absence of flow reserve cannot be used to predict recovery of LV function after valve replacement 8 Low Flow Low Gradient Severe Aortic Stenosis: Diagnosis and Treatment DOI: http://dx.doi.org/10.5772/intechopen.84435 Figure 8. The pulse wave Doppler is walked from the...
EOAProj = projected EOA at normal flow rate (in square centimeters); ΔP = mean transvalvular gradient (in mm Hg); Ca = calcium score (in Agatston Unit); SV = stroke volume; Op.= operative; SAVR = surgical aortic valve replacement; TAVR = transcatheter aortic valve replacement; other ab...
Compared to the EMT, much less is known about the regulation of valve remodeling, particularly at the level of the VECs as more recent work has focused on VICs during this process. Work by our group and others has shown that during mid-stages of valvulogenesis, VICs lose expression of ...