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العنوان
Recent Advances in Aortic Valve Repair
الناشر
Ahmed Anwar Mohamed M. Orieby ,
المؤلف
Orieby, Ahmed Anwar Mohamed M.
هيئة الاعداد
باحث / أحمد أنور محمد محمد عريبي
مشرف / ولاءأحمد صابر
مشرف / مصطفى ناجى الصناديقى
مشرف / خالد محمد مهران
الموضوع
Surgery Cardio-Thoracic Surgery Aortic Valve Repair Recent Advances
تاريخ النشر
2007 .
عدد الصفحات
102 p.
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
جراحة
تاريخ الإجازة
1/1/2007
مكان الإجازة
جامعة المنيا - كلية الطب - قسم الجراحة العامة
الفهرس
Only 14 pages are availabe for public view

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Abstract

Aim of the work
A highlight in recent advances of aortic valve repair will be presented, and outcome data will be discussed.
Summary and conclusion
Based on currently published data, the durability of isolated aortic valve repair can at best be considered fair with regurgitation recurring in a significant portion by the late mid term. Repair failure is likely mediated by several factors including cusp thickness, cusp stress-inducing nonlaminar flow, and alterations in root geometry. The idea of restructuring the entire apparatus, ie, valve repair and valvesparing root replacement, may facilitate improved outcomes whereby root geometry not just cusp coaptation is restored to a more functional state..
The future of aortic valve repair appears brightest in the context of valve-sparing root replacement. The reimplantation technique allows tremendous flexibility to reconstruct and change the geometry of the annulus, the sinus segments, and the sinotubular junction: each as important to aortic valve function as the aortic cusps themselves. It is clear that recognizing (1) what components of the apparatus are functioning abnormally and (2) how to reconfigure the root’s dimensions and reconstruct its geometry are the most challenging aspects of combining aortic valve repair and valvesparing root replacement.
Reflective of what have learned about mitral valve repair and the impact its success has proven, the concept of sparing the aortic valve remains very attractive. Continued study of repair techniques using sophisticated postprocessing tools after dynamic computed tomographic angiography, magnetic resonance angiography, and three-dimensional echocardiography will allow vigorous interrogation of (1) blood flow dynamics through the aortic root; (2) valvular geometry and function; and (3) the stresses imparted on the aortic cusps. These tools are likely to greatly impact our ability to improve aortic root repair techniques and the future of aortic valve preservation.