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Welcome to North Suburban Cardiology Associates

Diastolic dysfunction is a major factor in pulmonary hypertension. It is caused by stiff heart muscles that can’t relax, causing blood to pool in the organs rather than flowing to the heart’s ventricles.


The most common cause of diastolic dysfunction is age, with half of all adults over age 70 showing signs of the condition.

Other causes include:

  • Kidney dysfunction
  • High blood pressure
  • Diabetes


Diastolic dysfunction has symptoms that are similar to other heart conditions, such as:

  • Breathlessness
  • Fatigue
  • Fluid retention in the abdomen or lower limbs

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