Diastolic murmur: Graham Steell blowing

2021-03-15 12:00 AM

Pulmonary hypertension (typically above 55–60 mmHg) results in increased pressure on the valve leaflets and valve rings of the pulmonary artery. Stretching the valve rings causes the valves to no longer close together.

Description

High-frequency, systolic, spillover sound is audible in the pulmonary valve region when inhaled fully. This is a pulmonary valve opening sound seen in pulmonary hypertension.

Reason

Pulmonary valve dyspepsia with pulmonary hypertension - often secondary to pulmonary disease. (Note: Pulmonary valve regurgitation does not cause pulmonary hypertension!).

Mechanism

Pulmonary hypertension (typically above 55–60 mmHg) results in increased pressure on the valve leaflets and valve rings of the pulmonary artery. Stretching the valve rings causes the valves to no longer close together. Blood flow backwards through the valve leaves that are not closed, creating a blowing sound.