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Reoperative Aortic Root Replacement in Patients with Previous Aortic Root or Aortic Valve Procedures

  • Chong, Byung Kwon (Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Jung, Sung-Ho (Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Choo, Suk Jung (Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Chung, Cheol Hyun (Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Lee, Jae Won (Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Kim, Joon Bum (Department of Thoracic and Cardiovascular Surgery, Asan Medical Center, University of Ulsan College of Medicine)
  • Received : 2015.08.31
  • Accepted : 2015.10.28
  • Published : 2016.08.05

Abstract

Background: Generalization of standardized surgical techniques to treat aortic valve (AV) and aortic root diseases has benefited large numbers of patients. As a consequence of the proliferation of patients receiving aortic root surgeries, surgeons are more frequently challenged by reoperative aortic root procedures. The aim of this study was to evaluate the outcomes of redo-aortic root replacement (ARR). Methods: We retrospectively reviewed 66 patients (36 male; mean age, $44.5{\pm}9.5years$) who underwent redo-ARR following AV or aortic root procedures between April 1995 and June 2015. Results: Emergency surgeries comprised 43.9% (n=29). Indications for the redo-ARR were aneurysm (n=12), pseudoaneurysm (n=1), or dissection (n=6) of the residual native aortic sinus in 19 patients (28.8%), native AV dysfunction in 8 patients (12.1%), structural dysfunction of an implanted bioprosthetic AV in 19 patients (28.8%), and infection of previously replaced AV or proximal aortic grafts in 30 patients (45.5%). There were 3 early deaths (4.5%). During follow-up (median, 54.65 months; quartile 1-3, 17.93 to 95.71 months), there were 14 late deaths (21.2%), and 9 valve-related complications including reoperation of the aortic root in 1 patient, infective endocarditis in 3 patients, and hemorrhagic events in 5 patients. Overall survival and event-free survival rates at 5 years were $81.5%{\pm}5.1%$ and $76.4%{\pm}5.4%$, respectively. Conclusion: Despite technical challenges and a high rate of emergency conditions in patients requiring redo-ARR, early and late outcomes were acceptable in these patients.

Keywords

References

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