{"href":"https://api.simplecast.com/oembed?url=https%3A%2F%2Fpodcasts.prevmedhealth.com%2Fepisodes%2Fheart-failure-pt-4-diastolic-dysfunction-1HYgcmzA","width":444,"version":"1.0","type":"rich","title":"Heart Failure pt 4 Diastolic Dysfunction","thumbnail_width":300,"thumbnail_url":"https://image.simplecastcdn.com/images/3512c98c-c29a-485f-8f25-7fec2feffd3f/c1ffc8ec-d1ce-4174-bda8-89bbb1c68f54/heart-failure-pt-4-diastolic-dysfunction.jpg","thumbnail_height":300,"provider_url":"https://simplecast.com","provider_name":"Simplecast","html":"<iframe src=\"https://player.simplecast.com/788d4bf0-3f2f-4de8-98d1-15e88ea0e771\" height=\"200\" width=\"100%\" title=\"Heart Failure pt 4 Diastolic Dysfunction\" frameborder=\"0\" scrolling=\"no\"></iframe>","height":200,"description":"This video is part 4 in a series on Heart Failure - Diastolic Dysfunction. Stage 1 diastolic dysfunction is indicated by an echocardiogram showing an inverted E/A wave ratio (less than 1). The E wave shows the rate of flow past the mitral valve ring during diastole-filling the ventricle. Usually, the majority of filling occurs in the E wave period ( Early diastole). The A wave (atrial kick) happens at the end of the diastole. It usually adds about 20% of the volume. But the if ventricles are stiff ( hypertension is the most common cause), they don't relax well. The filling during Early diastole is decreased. Since there is a lot of volume remaining in the atria during the late (A wave) phase, the Atrial kick is increased in early-stage diastolic dysfunction.\n"}