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Diastolic Dysfunction as Diagnosed and Quantified by Echocardiography LAM-1965AO (07/13) For Broker/Dealer Use Only
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Diastole and Systole Diastole: The normal rhythmically occurring relaxation and dilatation of the heart chambers, especially the ventricles, during which they fill with blood. Systole: The contraction, or period of contraction, of the heart, especially of the ventricles, during which blood is forced into the aorta and pulmonary artery.
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Cardiac Cycle
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What is Diastolic Dysfunction? Changes in the ventricle which may result in impaired relaxation, reduced compliance and elevated pressures Diastolic Dysfunction ≠ Diastolic Heart Failure
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What is Diastolic Dysfunction? Who is more likely to develop DD? Elderly* Women Obese What diseases are more likely to produce DD? HTN LVH CAD VHD (AS) Text book Example: Older lady overweight with long history of hypertension with exercise intolerance
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What is Diastolic Dysfunction? 3 Stages to Diastolic Dysfunction I) Impaired Relaxation II) Pseudonormal III) Restrictive Primary measurements include peak E & A transmitral velocities, E/A ratio, DT (Deceleration Time) and IVRT (Isovolumetric Relaxation Time) Additional measurements E/e’, LA volume index, Pulmonary Vein Flow ( S/D & AR) and Vp (Propagation Velocity)
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What is Diastolic Dysfunction? Figure 2 Doppler echocardiogram shows normal pattern of diastolic filling. Opening of the mitral value produces increased flow velocity through the valve annulus, which is represented as a large E wave (E). During late diastolic filling, the transmitral pressure gradient increases once again, with atrial contraction producing a smaller A wave (A). (3)
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What is Diastolic Dysfunction?
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I: impaired relaxation, II: moderate diastolic dysfunction (pseudonormal), III: restrictive left ventricular filling (impaired LV compliance), ECG: electrocardiogram, MI: mitral inflow, MA: mitral annular velocities, PVF: pulmonary venous flow, Vp: velocity of flow progression, LA: left atrium, PASP: pulmonary artery systolic pressure.
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What is Diastolic Dysfunction? 1 st use E/A, DT, and IVRT 2 nd use E/e’ ( 15) and LA vol index ( 34 ml/M 2 increased mortality) 3 rd use Pulmonary Vein Flow ( S/D & AR) and Vp (Propagation Velocity)
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What is Diastolic Dysfunction? Normal E/A Ratio (>1) Good: 15, S<D, inc AR, dec Vp ) Not Good: > 70 yo with risk factors (HTN/LVH, CAD, ♀ ), evidence of increased filling pressures E/A < 1 ( Grade I DD, Impaired Relaxation) NBD: > 70 yo and no HTN/LVH or CAD BD: < 50 yo with HTN/LVH or CAD Grade II DD, Pseudonormal and LA vol index (> 34 ml/M 2 ) BAD ( until proven otherwise) Grade III or IV, Restrictive BAD BAD BAD
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Diastolic Dysfunction Case Study 74 yo male applying for $5 mil, no h/o HTN, heart disease, diabetes or cancer 6’ 0”, 185 lbs, 125/82 mmHg, 62 reg Labs and EKG WNL APS: 2012 echo….LV size and function WNL, EF 65%, LVPWd 1.1 cm, R & L atrium WNL, Grade I DD, no significant valvular disease….GXT: exercised 13 min to 14 METS, no ischemic changes Offer?
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Diastolic Dysfunction Case Study 72 yo female applying for $5 mil, long h/o HTN, no heart disease, diabetes or cancer 5’2”, 220 lbs, 154/92 mmHg, 92 reg Labs WNL except NTproBNP 320 pg/ml and EKG LAD, LVH & LAE APS: 2012 echo….LV size and function WNL, EF 65%, LVPWd 1.6 cm, L atrium 5.2 cm, E:A 2.2, E/e’ 20, no significant valvular disease….GXT: exercised 3 min to 4 METS, no ischemic changes Offer?
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