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  • Title: [Simplified surgical procedure of stented elephant trunk fenestration in acute Stanford type A aortic dissection].
    Author: Hu XP, Wang ZW, Xia J, Deng HP, Wu ZY, Li LC, Xu P.
    Journal: Zhonghua Yi Xue Za Zhi; 2012 Jun 12; 92(22):1532-5. PubMed ID: 22944055.
    Abstract:
    OBJECTIVE: To study the technical feasibility of simplified total arch replacement via stented elephant trunk fenestration in the treatment of acute Stanford type A aortic dissection. METHODS: A total of 42 consecutive patients with acute type A aortic dissection underwent total aortic arch replacement plus fenestrate stented elephant trunk implantation under hypothermic cardiopulmonary bypass and bilateral antegrade cerebral perfusion between August 2008 to February 2011. The aortic arch was accessed longitudinally. Transection of aortic arch was performed between left common carotid artery and left subclavian artery. A stented elephant trunk was inserted in descending aorta. Then the reconstruction of left subclavian artery was made by fenestration in stented elephant trunk. Finally 3-branched graft was used to complete the reconstruction of aortic arch. RESULTS: Operations were performed successfully. The mean cardiopulmonary bypass (CPB) time was (156 ± 42) min, mean aortic cross-clamp time (91 ± 18) min, mean circulatory arrest time (20 ± 5) min and mean antegrade cerebral perfusion (ACP) time (33 ± 7) min. No postoperative death occurred. The incidence of temporary neurological dysfunction was 4.8% (2/42). They underwent neither re-exploration for postoperative hemorrhage nor hoarseness due to recurrent nerve palsy. Left radial arterial pulses were palpable in all of them. None had sensory deficit and dyskinesia of left arm. All their angiographic findings showed complete patency of left subclavian artery. There was neither space nor blood flow around the stented elephant trunk. The false lumen of descending aorta around elephant trunk closed and obliterated in all cases. CONCLUSIONS: The above-mentioned technique of modified total aortic arch replacement provides a distinct operative field and may achieve simple but reliable anastomosis with less bleeding. Thus aortic arch replacement becomes easier and more effective.
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