Abstract

Aim: Acute type A aortic dissection is a life-threatening clinical situation with high mortality rates. Aortic valve insufficiency frequently accompanied to this disease. Despite the developments in the medical area, surgical intervention has difficulties especially in sinus of valsalva involvement. Aim of this study is evaluating the postoperative clinical outcomes in patients with type A aortic dissection operated without valve replacement and by using Teflon felt sandwich technique.
Material and Methods: Between January 2016 and January 2021, 126 patients with acute type A aortic dissection accompanied by severe aortic valve insufficiency operated by using Teflon felt sandwich technique without aortic valve repair or replacement were included to this study. Postoperative clinical outcomes evaluated and the degree of the aortic valve insufficiency was compared before and after operation.
Results: All the patients included to the study had severe aortic insufficiency before operation and dissected segment of the patients were limited to the ascendant aorta with sinus of valsalva involvement. Postoperative mortality rate was 6.3% (n=8). According to the results of the transthoracic echocardiography findings performed postoperative second day and first month, six of the patients had asymptomatic mild aortic regurgitation while no patients had severe or moderate aortic regurgitation.
Conclusion: Acute type A aortic dissection and accompanied severe aortic valve insufficiency can be treated by using Teflon felt sandwich technique with low duration of operation and satisfactory improvement of the aortic valve functions. Cost effectiveness in the terms of not to use a valve for replacement and anticoagulant drugs after the operation are the additional advantages.

Key words: Aortic insufficiency, acute type A aortic dissection, teflon felt sandwich technique