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Aortic valve conserving surgery in patients with aortic regurgitation
Holubec, Tomáš ; Žáček, Pavel (advisor) ; Lonský, Vladimír (referee) ; Tláskal, Tomáš (referee)
INTRODUCTION. In the last two decades, the vlave-conserving surgery of regurgitant heart valves has been evolving. The aortic valve-sparing operations have been developing rather over the last decade, despite the clear benefit of mitral valve repair has been shown. There is an indisputable advantage of valve-sparing operations attributed to the elimination of certain risks related to aortic valve replacement. Conversely, aortic valve repair is technically more demanding and there is a substantial risk of repair failure. AIM: The aim of this study is to analyze and assess short- and mid-term results of aortic valve-sparing operations in patients with aortic regurgitation, to examine the impact of aortic valve cuspidity (bicuspid or tricuspid) and different type of aortic repair (without and with root replacement) on the short- and mid-term results with regards to survival, reoperation and recurrence of aortic regurgitation (AR). Another aim is to assess the effectiveness and pulsatility of the external aortic ring annuloplasty in the patients' subgroup using cardiac-CT. METHODS. One hundred patients with aortic regurgitation (24 females; median age 52 years; range 23-77 years) underwent aortic valve-sparing operation between November 2007 and October 2012. Sixty patients had bicuspid aortic valve and...
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