0<mm(9 8%)closed spontaneously 0 months later,8>mm(7 %)complicated with infectious endocarditis(vegetation),obliged to restore.
0<mm(9 8%)closed spontaneously 0 months later,8>mm(7 %)complicated with infectious endocarditis(vegetation),obliged to restore.
其中0例（9．8％）RSD＜mm，在 ～ 0个月内RS自然愈合，8例（7．％）RSD＞mm者因RS太大合并感染性心内膜炎（赘生物）等不能自行愈合，需要再次手术修补。