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What is diastolic heart failure ?

Medikoe Health Expert

Medikoe Health Expert

  Koramangala, bengaluru, karnataka, india, Bengaluru     Feb 9, 2017

   1 min     


The decline in performance of one (usually the left ventricle) or both (left and right) ventricles during diastole is referred to as Diastolic heart failure and diastolic dysfunction. The stage during which the heart is resting and nourishing with incoming blood that is being returned from the body through the inferior (IVC) and superior (SVC) venae cavae to the right atrium and from lungs through pulmonary veins to the left atrium is called Diastole cardiac cycle. In diastolic failure, if the patient has signs and symptoms, there is a clinical cause inducing them. When doing a Doppler echocardiography in an apparently healthy patient, mainly in an elderly person, Diastolic dysfunction can be found.


Any process or condition that leads to hardening of the left ventricle can lead to diastolic dysfunction. Causes of left ventricular hardening include:

  • A prevailing hypertension where, as a result of left ventricular muscle hypertrophy caused by the high pressure, the left ventricle has become hard.
  • Aortic stenosis of any cause where the ventricular muscle becomes excessively enlarged, and hence stiff, as a result of the raised pressure load placed on it by the stenosis.
  • Age - elderly patients usually if they have hypertension.
  • Diabetes


When the ventricle can't be filled correctly because it cannot rest or because its wall is rigid or thick, diastolic failure appears. This condition shows a generally a concentric hypertrophy. In contrast, systolic heart failure has generally an eccentric hypertrophy.

Diastolic failure is distinguished by a raised diastolic pressure in the left ventricle, regardless of an essentially normal/physiologic end diastolic volume (EDV). Histological affirmation, supporting diastolic dysfunction signifies increased interstitial collagen downfall, infiltration of the myocardium and ventricular hypertrophy.

Tags:  Heart diseases,

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