prognosis

Last reviewed 01/2018

Some information concerning the prognosis in mitral regurgitation is given below:

• mild regurgitation:
• prognosis is good
• risk of infective endocarditis and rarely, chordal rupture in redundant prolapsed cusps
• regurgitation tends to increase with age

• severe regurgitation:
• initially, well tolerated as there is little resistance to left ventricular outflow
• with time left ventricular failure develops
• contractility may appear good on echo due to the diminished afterload
• if surgical repair is left too late, abolition of mitral regurgitation results in a sudden increase in afterload which may not be tolerated by a poor left ventricle

• ischaemic regurgitation:
• in the longterm the prognosis is of the underlying coronary disease

• results from surgery:

• mortality:
• valve replacement 6%
• valve repair 2%
• increased in patients with left ventricular failure

• paraprosthetic leak:
• about 2%
• higher in prolapsing valves

• residual mitral regurgitation:
• mitral valve repair 5%
• reoperation rate in mitral valve repair of about 2%