Orlando Health Heart and Vascular Institute is one of the few specialized centers nationwide — and the first in Central Florida — to address complex aortic aneurysms using a novel thoracoabdominal branch endoprosthesis (TAMBE) device. Recently approved by the FDA, TAMBE is the first off-the-shelf endograph solution for the endovascular repair of complex thoracoabdominal aneurysmal disease involving the visceral aorta.

“Historically, treating these aneurysms involved either very invasive, extremely morbid open surgery with high risk for complications and long recovery times or participation in clinical research trials in a handful of centers across the country,” says Mohammad Abbasi, MD, a board-certified vascular surgeon with Orlando Health Heart and Vascular Institute. “In order to perform these repairs through an endovascular approach, existing thoracic stent graph devices would have to be customized in the operating room for each patient before surgery.”
TAMBE enables surgeons to use established imaging techniques to guide the implantable branched device endovascularly, assembling it within the aorta to effectively seal off the aneurysm and allow blood to flow directly through the endoprosthesis. The device’s individual precannulated inner branches create bridging stent grafts so blood flows into the adjacent visceral arteries while excluding the aneurysm.
“Surgery is done percutaneously via the femoral and axillary arteries,” says Dr. Abbasi. “This endovascular approach addresses complicated pathology while minimizing risk, improving outcomes and shortening hospital stay. We see TAMBE as a treatment option not only for thoracoabdominal aortic aneurysms, but also for thoracoabdominal aortic dissections.”
In September 2024, Dr. Abbasi and his team performed the first TAMBE implant for a thoracoabdominal aortic aneurysm secondary to a dissection. “This was an extremely novel application of this technology,” says Dr. Abbasi, who is currently preparing the case for peer-reviewed publication. “The patient was discharged two days post-surgery with her aneurysm completely excluded and positive follow-up.”
With TAMBE available at Orlando Health, regional and referred patients no longer have to travel to find a clinical trial. “We are a high-volume program with the appropriate care mechanisms in place to treat any potential complications, such as spinal cord ischemia,” says Dr. Abbasi. “Our surgical expertise, and robust system for appropriate patient care, enabled us to access this advanced technology for our patients earlier than other facilities.”
Specialists at Orlando Health Heart and Vascular Institute offer the latest in comprehensive care, diagnostic imaging and treatment options by renowned cardiologists, heart and vascular surgeons, and cardiovascular professionals collaborating to provide nationally ranked care in 40 subspecialties.