Excellent videos. There are a number of them on valve surgery, including minimally invasive, aortic, mitral, even coronary bypass (CABG), which is sometimes done along with VR.
These provide the information in a palatable, visual format that is probably easier to negotiate than the many written explanations some of us have tried to put forward.
We should contact the video creators/owners and ask if we can add them directly to the site, rather than just have links. Sometimes the source goes away, and we don't want to be concerned that they will be deleted for space or lack of popularity at some time in the future.
If needed, I will help to contact these people.
Thank you,