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Basic Principles of Colour Doppler Echocardiography

All About Cardiovascular System and Disorders

Colour Doppler echocardiography is very useful in giving a quick visual assessment of regurgitation and stenosis of heart valves. For example, when the VSD is small, the pressure difference between the right and left ventricles is high. It will also show abnormal flows as in an atrial or ventricular septal defect.

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Evaluation of JVP

All About Cardiovascular System and Disorders

The Y descent is shallow in tricuspid stenosis, and absent in cardiac tamponade. Right atrial hypertrophy as in tricuspid stenosis, pulmonary stenosis and pulmonary hypertension. But in a VSD with pulmonary hypertension A wave is not prominent. X descent, X prime descent and Y descent.

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Corvia atrial shunt system: Mean LA pressure reduction device in HFpEF

Dr. S. Venkatesan MD

We know a small ASD decompresses mitral stenosis, and the combination of ASD and MS, Lutembacher, is a well-known syndrome called Lutembacher. Curious minds might ask, can’t we decompress LV it self by creating a small VSD. The concept of LA flow regulator or decompressor came from this. Probably in the thin membranous area.

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Watch what happens when "pericarditis" and morphine cloud your judgment

Dr. Smith's ECG Blog

Here are the images from the cardiac cath: Mid to distal-LAD in-stent stenosis with 100% occlusion and TIMI flow 0 LAD post-DES placement with TIMI 3 flow The amount of territory supplied by this vessel becomes obvious here (and goes on for a few more frames below this still). No further echocardiograms were available after cath.