Background: The optimal surgical strategy for the left subclavian artery (LSA) during total arch replacement combined with stented elephant trunk implantation for acute type A aortic dissection remains a challenge. The objective of the study is to report a novel surgical technique aiming to simplify the revascularization procedure of total aortic arch replacement combined with stented elephant trunk implantation.
Methods: We retrospectively reviewed the result of 167 patients who underwent total aortic arch replacement combined with stented elephant trunk implantation between January 2000 and December 2012. Of the 167 patients, 51 were selected to undergo the simplified revascularization, which is to fenestrate a stent graft of the descending aorta instead of performing reconstruction of the LSA. Before performing the new LSA revascularization, we had performed the elephant trunk procedure whereby the tubular material completely covered the LSA. The ensuing revascularization was modified by removing a patch of the polyester fabric of the elephant trunk that was located at the origin of the LSA. Both perioperative variables and postoperative outcome of the surgery were assessed.
Results: The indication for adopting the LSA fenestration was under the circumstance of absence of dissection at the origin of the LSA. The nosocomial mortality of the 51 patients was 7.8% (multiorgan failure 2, renal failure 1, infection 1). During a mean follow-up period of 51.3 ± 27.6 months, the survival rate of the 47 patients was 100%, 90.8%, and 70.2% at 1, 5, and 10 years, respectively. No stroke and left limb ischemia were observed. No patients required reintervention because of anastomotic leak between the LSA and the descending aorta during follow-up.
Conclusions: The LSA fenestration technique during total arch replacement combined with stented elephant trunk implantation for acute type A aortic dissection is reliable and effective for patients who have no dissection at the LSA. Furthermore, because the simplified surgical procedure largely shortens the time of operation, it effectively improves the patient's prognosis.
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| http://dx.doi.org/10.1016/j.athoracsur.2015.06.069 | DOI Listing |
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