Traumatic aortic rupture

A medical condition involving a tear in the aorta due to trauma

Diagram of the aorta, showing the location of common traumatic rupture sites.

Traumatic aortic rupture is a condition where the aorta, the largest artery in the body, is torn or ruptured due to trauma. This is a life-threatening injury that requires immediate medical attention.

Causes

Traumatic aortic rupture is most commonly caused by blunt trauma, such as that sustained in motor vehicle collisions, falls from significant heights, or severe crush injuries. The rapid deceleration in these incidents can cause the aorta to tear, particularly at the isthmus, which is the part of the aorta just distal to the left subclavian artery.

Symptoms

The symptoms of traumatic aortic rupture can vary depending on the severity of the tear and the presence of other injuries. Common symptoms include severe chest or back pain, difficulty breathing, and signs of shock such as low blood pressure and rapid heart rate. In some cases, there may be no symptoms until the condition becomes critical.

Diagnosis

Diagnosis of traumatic aortic rupture is typically made using imaging studies. A chest X-ray may show widening of the mediastinum, which is suggestive of aortic injury. More definitive diagnosis is made with computed tomography (CT) angiography, which can visualize the tear in the aorta.

Treatment

The treatment of traumatic aortic rupture usually involves surgical repair. This can be done through open surgery or endovascular techniques, depending on the location and extent of the injury. Endovascular repair, which involves placing a stent graft in the aorta, is less invasive and has become more common in recent years.

Prognosis

The prognosis for traumatic aortic rupture depends on the speed of diagnosis and treatment. Without treatment, the condition is almost always fatal. With prompt surgical intervention, the survival rate improves significantly.

Prevention

Preventive measures for traumatic aortic rupture focus on reducing the risk of blunt trauma. This includes the use of seat belts and airbags in vehicles, as well as safety measures in high-risk occupations and activities.

Related pages

• Aorta
• Blunt trauma
• Endovascular surgery