Even after years as a cardiothoracic surgeon, I am still amazed at the efficiency of the human heart. The healthy human heart contains four valves that open and close with every heartbeat. This ensures that blood flows through the heart correctly. If the valves don’t open enough (stenosis) or they can’t close properly (pulmonary valve insufficiency), the patient may be diagnosed with valvular heart disease. This condition affects up to three percent of Americans. People with valvular … [Read more...] about Valvular Heart Disease: A Quiet and Dangerous Disorder