Fig. 2

Severity of aortic regurgitation before operation, after operation and during follow-up for different surgical groups. NT, non-surgical treatment; AVP, aortic valvuloplasty; AVR, aortic valve replacement.

Severity of aortic regurgitation before operation, after operation and during follow-up for different surgical groups. NT, non-surgical treatment; AVP, aortic valvuloplasty; AVR, aortic valve replacement.