By Noboru Motomura
The aortic valve is found on the middle of the center. it's the center of cardiac anatomy and aortic valve surgical procedure has led the sector of cardiac surgical procedure. This ebook describes all points of aortic valve surgical procedure and it'll support make clear day-by-day questions concerning the medical perform in aortic valve surgical procedure, in addition to result in thought and new insights into this box.
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Extra info for Aortic Valve Surgery
Generally, the mechanical valves which are more durable than the biological valves are chosen in the patients younger than the age of 60 years, because of their expected longer survival. At that age an early calcification due to the increase of the collagen degeneration and increased calcium turnover was seen in the biological valves (Gross, 1998). However, the selection of prosthetic valve is more difficult between the age 60 and 70 years. The selection of the valve can be easier by paying attention to co-morbidities.
TAVI has been developed as an endovascular alternative to surgical aortic valve replacement. This technique is performed with transfemoral or transapical routes. Successful implantation rate has been found between 85% and 100% (Al-Attar, 2009; Johansson, 2011). Homografts and autologous pulmonary valves are good alternatives for infants and childhood patients. In this method advantages like the growing ability, perfect durability, avoidance of prolonged anticoagulation, excellent hemodynamic performance, low transvalvar pressure gradient, large effective orifice area of pulmonary autologous valve are shown (Alsoufi, 2009; Gatzoulis, 1999).
The choice of valve type for valve replacement in pregnancy is similar to the choice criteria in young women patients. In a similar way it is difficult to make a decision about the valve choice because of the degeneration risk of the biological valves in young women and the requirement of anticoagulation for the mechanical valves, the fact that the trombosis of the mechanical valves during pregnancy can be a cause of mortality, and the limited data about how the homografts are influenced during pregnancy.
Aortic Valve Surgery by Noboru Motomura