title: Reimplantation versus remodeling: a meta-analysis.
abstract: BACKGROUND
  Reimplantation and remodeling procedure are two different techniques for valve-sparing aortic root surgery. A number of comparative series have been published but, to date, there has been no meta-analysis comparing outcomes following the two techniques.
  
  
  METHODS
  This meta-analysis was performed in accordance with the Cochrane Handbook for Systematic Reviews. A public domain database (MEDLINE) was searched to identify relevant series. Pooled risk ratios (RR) were calculated using fixed effects models for early (30-day) mortality, late deaths, and reoperation related to moderate or severe aortic insufficiency (AI) during follow-up.
  
  
  RESULTS
  The search identified seven eligible series, totaling 672 patients (367 reimplantation patents). There was no significant difference in early (30-day) mortality (pooled RR 1.06; 95% CI 0.36 to 3.10; p = 0.92) and late deaths (pooled RR 0.57; 95% CI 0.18 to 1.87; p = 0.36) between reimplantation and remodeling groups. However, reimplantation technique has less chance for reoperation related to moderate or severe AI during follow-up (pooled RR 0.46; 95% CI 0.23 to 0.92; p = 0.03).
  
  
  CONCLUSIONS
  Comparing with remodeling, reimplantation technique has less chance for reoperation related to moderate or severe AI during long-term follow-up.
authors.affiliation: Departments of Cardiovascular Surgery, Cardiovascular Institute and Fuwai Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Liu
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Xin
authors.initials: X
authors.lastname: Wang
authors.forename: Chuan
authors.initials: C
authors.lastname: Tian
authors.forename: Yan-Hai
authors.initials: YH
authors.lastname: Meng
authors.forename: Qian
authors.initials: Q
authors.lastname: Chang
mesh_terms: D001021:Aortic Valve / Q000601:surgery*; D001022:Aortic Valve Insufficiency / Q000601:surgery*; D005500:Follow-Up Studies; D019918:Heart Valve Prosthesis Implantation / Q000379:methods* / Q000401:mortality; D006801:Humans; D012086:Reoperation / Q000706:statistics & numerical data; D012092:Replantation / Q000379:methods* / Q000401:mortality; D012720:Severity of Illness Index; D015996:Survival Rate; D013997:Time Factors