Best graft for aortic dissection
a) Dacron
b) Autologous vein
c) Autologous artery
d) PTFE
Ans: A Reference: Sabiston 20th ed; pg. 1730 Explanation:
• Aortic dissection occurs when there is a defect in the intimal layer which permits blood to create false channel within the aortic wall between media and adventitia. • Stanford classification is most commonly used • Type A (any involvement of ascending aorta) – surgical emergency • Type B dissection mostly treated with Hypertensive control followed by endovascular stenting called TEVAR (thoracic endovascular aneurysm repair) • As mentioned above, all aortic surgeries are replaced with a synthetic graft – Dacron (woven/knitted polyester) sutured with 2-0 polypropylene