What Are the Effects of Low Ejection Fraction?

Elderly ring calcification or ring expansion and loss of lobular junction, collagen disease, leading to severe ring expansion and / or tendon rupture. Acute or chronic ischemia can also cause mitral regurgitation due to papillary muscle dysfunction.

Mitral regurgitation

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Senile ring

versus

Mitral regurgitation, left ventricular blood ejection

Acute mitral regurgitation immediately

In the treatment of patients with mitral regurgitation,

Auscultation: Total systolic murmur is clearest at the apex, and

The basis of mitral regurgitation is reduction

Simple mitral regurgitation requires

(1) Replacement

Advantages: the valve is guaranteed to be competent; the method is easy to teach and easy to be operated by a wide range of surgeons.

Disadvantages: Removal of the subvalvular device can cause systolic dysfunction; Anticoagulation is required; There is always a risk of artificial valvular endocarditis and thromboembolism (although <3% per year); mortality is 2% to 8%.

(2) Repair

Advantages: Preserving the subvalvular device to maintain postoperative contractile function; Anticoagulation is selective; Endocarditis and thromboembolism are very rare; Low mortality rate (2%).

Disadvantages: long operation time; difficult to teach and difficult to learn; annual failure rate is 1% to 3%.