Anatomy of the Heart Valves, khanacademymedicine (4:07)
Cross section drawings of the heart are used to provide a concise overview of the heart valves.
Heart Valve Diseases, khanacademymedicine (1:26:32)
This playlist covers 1. What is valvular heart disease?, 2. Valvular heart disease causes, 3. How to identify murmurs, 4. Systolic murmurs, diastolic murmurs, and extra heart sounds - Part 1, 5. Systolic murmurs, diastolic murmurs, and extra heart sounds - Part 2, 6. Aortic stenosis and aortic regurgitation, 7. Mitral valve regurgitation and mitral valve prolapse, 8. Mitral stenosis, and 9. Valvular heart disease diagnosis and treatment.
Valvular Heart Disease - CRASH! USMLE Step 2 and 3, Paul Bolin (1:00:28)
This video covers mitral stenosis, mitral regurgitation, aortic stenosis, aortic regurgitation, mitral valve prolapse, and hypertrophic obstructive cardiomyopathy. History, symptoms, physical exam, and treatment are described for each type of valvular heart disease. If you want a shorter summary, start watching where the recap begins at 53:40 with information presented in a table.
For the more conventional references, such as Medscape, eMedicine, UpToDate, WebMD, Mayo, etc, see the Top 20 Heart Valve Disease page, which is part of top20health.com.