Pericardial percussion sound - signs of symptoms and causes

2021-03-15 12:00 AM

Suddenly slowed blood flow into the first ventricle makes a diastolic noise, which occurs because the ventricles cannot relax because they are blocked by the constriction of the pericardium.

Description

The first diastolic, high-pitched sound, is best heard between the tip of the heart and the left bank of the sternum.

Reason

Spasmodic pericarditis.

Mechanism

Suddenly slowed blood flow into the first ventricle makes a diastolic noise, which occurs because the ventricles cannot relax because they are blocked by the constriction of the pericardium.

Meaning

Considered one of the classic signs at the heart of spasmodic pericarditis, present in 24% to 94% of patients with this condition.

Possible confusion - s3 and pericardial percussion sound

The mechanism is similar to the S3 sound, so it is difficult to distinguish these two sounds. However, pericardial percussion was high-pitched while S3 was low-pitched. Always make a distinction between medical history and other clinical symptoms.