Most common site of injury to aoa in patients who manage to reach the hospital for medical care is
Answer- B. Aoic isthmusTrauma can result in aoic transaction or disruption.Traumatc injuries to the aoa are rapidly fatal ith most victims dying at the scene of injury.Post traumatic aneurysms to the aoa are distinctive by their location.The two most common sites are proximal ascending aoa and aoic isthmus, the site of inseion of ligamentum aeriosum.Among patients who survive traumatic aoic injury and reach medical care, about 95% have injury to aoic isthmus.
Ascending aoa
Aoic isthmus
Descending thoracic aoa
Abdominal aoa