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Transcript of the video: Closure line of aorticvalve on M-Mode echocardiogram, is seen as central line, while in bicuspid aorticvalve, it is an eccentric closure, nearer to one of the walls of the aorta. That is an important feature of bicuspid aorticvalve on M-Mode echocardiogram. This is a closure line.
The optimal management of concomitant chronic obstructive coronary artery disease (CAD) in transcatheter aorticvalve replacement (TAVR) recipients remains a debated topic. While some advocate for pre-TAVR percutaneous coronary intervention, others adopt an expectant approach.
Transcatheter aorticvalve replacement (TAVR) is increasing in popularity for symptomatic severe aortic stenosis. Transfemoral arterial route is the most commonly used approach for TAVR, also known as TAVI or transcatheter aorticvalve implantation. JACC: Asia. May 14, 2024. Epublished DOI: 10.1016/j.jacasi.2024.03.006
Calcium deposits in the aorticvalve between the left ventricle, the lower left chamber and the aorta which receives the blood pumped out, can spread to the conduction system and produce first degree AV block. First degree AV block in older persons due to degeneration of the conduction system or aorticvalve can also progress.
Transcript of video: Hypoplastic Left Heart Syndrome is a very severe form of congenital heart disease, in which, the left ventricle, aorta and mitral and aorticvalves are hypoplastic and valves may be atretic as well. It has a very poor survival. This is diagrammatic representation of hypoplastic left heart syndrome.
You can see the reverse flow into the left ventricle from the aorta, with the aorticvalve in closed position. Beacuse, as the aorticvalve is closed, and the regurgitant jet is coming in, and left ventricular diastolic pressures are lower than the aortic pressures. Here it is the AR jet.
Here, this is the forward flow through the mitral valve in diastole in red. This is reverse flow from the aorticvalve, that is aortic regurgitation jet. That is, flow away from the transducer is depicted as blue. Flow towards the transducer is depicted as red. That also occurs in diastole.
Here, this is the forward flow through the mitral valve in diastole in red. This is reverse flow from the aorticvalve, that is aortic regurgitation jet. That is, flow away from the transducer is depicted as blue. Flow towards the transducer is depicted as red. That also occurs in diastole.
Right ventricular outflow tract, left ventricle, left atrium, aorta, aorticvalve, mitral valve. In the inset you can see the two dimensional image. Location of the transducer here, in the parasternal region. This is the parasternal long axis view. These are the things you have seen in that inset image.
Mitral valve leaflets seen in open position between the left ventricle and left atrium are thickened. The large aortic regurgitation jet can be seen as a mosaic jet in the left ventricular outflow tract anterior to the anterior mitral leaflet. A portion of the thickened aorticvalve can be seen between the aorta and left ventricle.
SMART 4 ( NCT04722250 ) studied patients with severe aortic stenosis and a small aortic annulus who underwent transcatheter aorticvalve replacement (TAVR). A total of 716 patients underwent TAVR with either a self-expanding supraannular valve or a balloon-expandable valve.
It is shown as a circle along the dotted Doppler line in the image, just beyond the aorticvalve. Sample volume is the region from which the pulsed Doppler signals are sampled and analyzed. This Doppler tracing is actually from a high pulse repetition Doppler in which multiple sample volumes are analyzed to increase the Nyquist limit.
This is the aorticvalve in closed position and mitral valve also appears to be closed in position. That is because timing of the image may be in such a way that, it could have been in such a way that both valves are in closed position. This is the location of the transducer, and this is the sector scan.
Usual structures imaged in this view are the right ventricular free wall and outflow region, interventricular septum, aorta, and aorticvalve, left ventricular outflow tract, anterior and posterior mitral leaflets, left ventricular cavity, posterior wall of left ventricle and left atrium.
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