Zhonghua wai ke za zhi [Chinese journal of surgery]
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Zhonghua Wai Ke Za Zhi · Apr 2003
[Long-term follow-up of enlargement annulus aortic valve replacement in small aortic root].
To investigate the long-term survival of patients after aortic valve replacement with enlarged annulus. ⋯ Patient-prosthesis mismatch with heart valve prostheses as demonstrated by the indexed effective orifice area can be avoided by use of Manouguian's annulus enlarging techniques. The hemodynamic performance of these aortic valve prostheses is satisfactory.