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Background  The mid-term and long-term efficacies of valve preservation in acute DeBakey I aortic dissection (AD) are controversial. Thus, it is unclear whether middle-aged patients with acute DeBakey I AD should undergo modified valve-sparing procedures or the Bentall procedure in an emergency setting.    Methods  This study included 213 middle-aged Chinese patients (under 60 years old) who were treated for acute DeBakey I AD between January 2009 and June 2015. The treatments involved modified valve-sparing aortic root replacement (VSARR) (117 patients) or the Bentall procedure (96 patients). Preoperative, intraoperative, postoperative, and follow-up data were analyzed. Echocardiography and thoracoabdominal computed tomography angiography (CTA) findings were reviewed at 3 months, 1 year, and then annually after surgery.    Results  No significant differences were observed in terms of the preoperative, intraoperative, in-hospital mortality, and postoperative parameters. There were also no significant differences in aortic regurgitation (AR). However, follow-up examinations using CTA revealed that 6 patients had endoleakage at the distal end of the triple-branched stent (0/110 patients [0.0%] vs. 6/90 patients [6.7%],  P  = 0.022). The anticoagulation-related thromboembolism/bleeding events was significantly lower in group A than in group B (0/110 patients [0.0%] vs. 11/90 patients [11.1%],  P  = 0.001). And postoperative aortic valve re-operation rate was significantly lower in group A (1/110 patients [0.9%] vs. 8/90 patients [8.9%],  P  = 0.020). There was no significant difference in survival during the follow-up period (log-rank  P  > 0.05).    Conclusion  For middle-aged patients with acute DeBakey I AD, VSARR were associated with a lower rate of endoleakage at the distal end of the triple-branched stent, thromboembolism/bleeding events and aortic valve re-operation (vs. the Bentall procedure).

bmc cardiovascular disorders

Mid-term outcomes of modified valve-sparing aortic root replacement versus the Bentall procedure for middle-aged Chinese patients with acute DeBakey I aortic dissection: a single-center retrospective study