Systolic Vs Diastolic heart failure - Pathophysiology USMLE , Dr G Bhanu Prakash

Heart failure is also classified as either diastolic or systolic.

Diastolic Heart Failure
Diastolic heart failure occurs when the heart muscle becomes stiffer than normal. The stiffness, which is usually due to heart disease, means that your heart doesn’t fill with blood easily. This is known as diastolic dysfunction. It leads to a lack of blood flow to the rest of the organs in your body. Diastolic heart failure is more common in women than in men.

Systolic Heart Failure
Systolic heart failure occurs when the heart muscle loses its ability to contract. The contractions of the heart are necessary to pump oxygen-rich blood out to the body. This problem is known as systolic dysfunction, and it usually develops when your heart is weak and enlarged. Systolic heart failure is more common in men than in women.

Both diastolic and systolic heart failure can occur on the left or right sides of the heart. You may have either condition on both sides of the heart.

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