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Echocardiographic Criteria for Aortic Valve-sparing Procedures
Tuna, Martin ; Šťásek, Josef (advisor) ; Lonský, Vladimír (referee) ; Linhartová, Irena (referee)
Risk factors for failure of aortic valve-sparing procedures Introduction: Valve- sparing procedures restore correct function of the aortic valve without the usage of a valve replacement and thus eliminates the risks of its presence. Their disadvantage is the uncertainty of long-term correct function of the valve and the risk of recurrence of the defect. Aim: To evaluate medium to long-term outcomes of aortic valve-sparing procedures with focus on patient survival, reoperation and recurrence of aortic regurgitation. In the analysis of the results of operations identify the risk factors of failure of the aortic valve. To determine the effect of various surgical techniques used in aortic annuloplasty on the risk of aortic annulus re-dilation and the failure of aortic valve-sparing procedure in long-term follow-up. To evaluate the results of valve-sparing procedures in frequency of failure with recurrence of defect and frequency of reoperations between groups of patients with tricuspid and bikuspid aortic valve. Methods: From 11/2007 to 10/2017 was a total of 198 aortic valve sparing operations performed at our department. Patients' mean age was 48.4 ± 13.5 years. Of the total, 74 (37%) patients had tricuspid valve, 121 (61%) had bikuspid valve and 3 (2%) patients had unicuspid aortic valve. Dilatation...
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