Aneurysms of the thoracoabdominal aorta represent a
formidable surgical challenge and their treatment is generally
limited to large referral centers such as Duke with expertise
in the complex techniques necessary for successful repair.
As with descending thoracic aneurysms, the surgical repair
of these lesions carries a risk of spinal cord ischemia, and we
use online monitoring of the spinal cord during surgery with
somatosensory evoked potentials (SSEPs) and motor evoked
potentials (MEPs) to minimize this risk.
In addition, we utilize other adjuncts to further protect
the spinal cord, including the use of neuroprotective
pharmacologic agents, cerebrospinal fluid drainage, distal
aortic perfusion, hypothermia, and intercostal artery
re-implantation to maximize positive neurologic outcomes.
Hybrid Surgery
Duke is one of the few centers in the country that offers
"hybrid" repairs for thoracoabdominal and aortic arch
aneurysms. This technique is a combination of open debranching
and endovascular aneurysm exclusion, which eliminates the need
for cardiopulmonary bypass and aortic cross-clamp.
The hybrid technique is a safer alternative to open surgery
for many patients, making it an option for high-risk patients
who cannot undergo conventional open surgery. It's especially
suited to patients with other significant health problems or
prior open aortic surgery.