Objective: To study endovascular treatment of DeBakey type I aortic dissecting aneurysm.
Methods: Seven patients with DeBakey I aortic dissecting aneurysms were treated. Diagnoses were confirmed by MRA, CT and angiography. The intimal tear entry was in the ascending aorta, 2.5 approximately 6.0 cm from the ostia of the coronary arteries, and 0.5 approximately 4.0 cm from the brachiocephalic trunk opening. Endovascular stent-grafts were deployed via a left common carotid artery (LCCA) approach in 2 cases and right femoral artery (RFA) approach in 5 cases. Prior to treatment, a left subclavicular artery (LSA)-LCCA shunt was established to ensure blood supply to the LCCA during surgery in 2 cases via LCCA approach, and a LSA-LCCA-right common carotid artery (RCCA) synthetic bypass was established to ensure blood supply to the brain in 2 cases in RFA approach.
Results: The operative success rate was 100%. In 3 cases, endoleak persisted after the first stent was placed, but this was eliminated by placement of a second stent. All patients survived except one who died of acute massive hemorrhage from the upper gastrointestinal tract one month postoperatively. The false lumen in all 6 cases became thrombosed and no endoleak or new aortic dissecting aneurysms developed.
Conclusions: Endovascular treatment of DeBakey type I aortic dissecting aneurysm is feasible, minimally invasive, and effective. Case selection depends on the distance of the coronary artery ostia from the tear entry.
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