Pulmonary valve insufficiency (or incompetence, or regurgitation) is a condition where the pulmonary valve is not strong enough to prevent backflow into the right ventricle. If it is secondary to pulmonary hypertension it is referred to as a "Graham Steell" murmur.

External links

• http://www.uwhealth.org/page.asp?contentid=11094
• http://www.cvphysiology.com/Heart%20Disease/HD005.htm

it:Insufficienza polmonare

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