Valve insufficiency or regurgitation happens more often in the mitral valve. When a valve leaks, the leaflets don’t close completely and some blood leaks backward rather than all of the blood flowing ...

Ischemic mitral regurgitation is associated with a substantial risk of death. Practice guidelines recommend surgery for patients with a severe form of this condition but acknowledge that the ...

An engine's valvesprings play a critical role in its performance, yet those incorrectly chosen for a given application can cause hobbyists to unknowingly point blame in another direction if an engine ...