The Application Of Chimney Graft Technique For TEVAR Of Debakey â…¢ Type Aortic Dissection

Objective：Explore the experience and the effect of aortic endovascular repair by the"chimney" technique.Methods：Analysis the application of "chimney" technique in11cases from June2010to October2012. Inadequate proximal landing zone of the aortic arch lesionscovering the important branch vessels of the aortic arch in endovascular repair processfirstly. Then "chimney" stent implantated into the covered branch vascular. The resultsand postoperative complications were record.Results：11cases of aortic arch lesions were enrolled for endovascular repairincluding8males and3females with age39to73years. The "Chimney" technique wasused in7cases for the left common carotid artery and in4cases for left subclavian artery.Only two cases suggests the presence of a small amount of type I endoleak by immediatepostoperative angiography. During the follow-up, all artificial blood vessels and branchartery stenting to maintain patency descending aortic true lumen diameter significantlyexpanded, the diameter of the false lumen gradually narrowed. No stent graft and"chimney" stent migration and other concurrent disease.Conclusions：The "chimney" technique for endovascular treatment of insufficientlanding zone Debakey III aortic dissection is safe and effective. It is a new way toexpansion of the anchoring zone and expand endovascular treatment indications.