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  • Title: Total arch replacement with stented elephant trunk technique: a proposed treatment for complicated Stanford type B aortic dissection.
    Author: Li B, Sun L, Chang Q, Zhu J, Yu C, Liu Y, Zheng J, Qi R.
    Journal: J Card Surg; 2009; 24(6):704-9. PubMed ID: 19754678.
    Abstract:
    OBJECTIVES: The treatment of Stanford type B aortic dissections involving the arch or associated with proximal aortic aneurysms remains a surgical challenge. We report our results with total arch replacement with the stented elephant trunk (SET) procedure for these complicated Stanford type B aortic dissections. METHODS: Between December 2003 and June 2008, 31 patients were admitted for complicated type B dissection (12 acute, 19 chronic). The mean age at operation was 44.3 +/- 10.6 years (range: 22-68 years). The surgeries were performed by using total arch replacement combined with SET implantation. Enhanced computed tomography (CT) was performed before discharge as well as 3 months and annually to evaluate the condition of the graft and the residual false lumen. RESULTS: The procedure was successful in all but two patients; two patients died of multiple organ failure following surgery. No paraplegia was observed after surgery. Follow-up was completed in 27 of 29 patients and the mean follow-up period was 18.4 +/- 12.3 months (range: 6-54 months). During follow-up CT scans, thrombus formation was observed in the descending aortic false lumen excluded by the stented graft in most patients. One patient died during follow-up while two patients with Marfan syndrome underwent successful operations for replacement of the remaining descending and abdominal aorta. CONCLUSION: Total arch replacement with the SET procedure has emerged as a viable option for complicated type B dissections and is associated with low morbidity and mortality. At mid-term follow-up, most patients have either thrombosed or have had no further increase in the false lumen of the descending aorta.
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