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The Symptoms of Diastolic Dysfunction and Heart Failure

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Diastolic Dysfunction is diagnosed based on Doppler ECHO - Blood flow across the mitral valve occurs in 2 phases: an early transmitral flow (E wave) and a late flow with atrial contraction (A wave). The relative contribution of each is expressed as a ratio (E/A). An E/A ratio less than 0.75 or greater than 1.5 indicates DD.

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Low-Output Heart Failure Systolic dysfunction More common than high-output heart failure Causes: ischemic heart disease (most common), hypertension, cardiomyopathy, valvular heart disease Decreased CO, decreased LVEDP and increased systemic oxygen extraction ratio Rx: oxygen, BiPAP, nitrates, furosemide

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