title: Mid-term results of aortic valve preservation: remodelling vs. reimplantation.
abstract: OBJECTIVE
  Valve-preserving root replacement has become an accepted alternative to composite replacement both in dissection and in aneurysmal disease. We retrospectively analysed 5-year results comparing root remodelling and reimplantation procedures.
  
  
  METHODS
  From October 1995 to January 2001, 119 patients underwent either root remodelling (group A; n = 98; age: 61 +/- 14 years) or valve reimplantation within a vascular graft (group B; n = 21; age: 47 +/- 17 years). In group A, 26 patients were operated for aortic dissection type A and 72 for aortic valve regurgitation and aneurysmal disease. In group B, 8 patients were operated for aortic dissection type A, 13 for aortic valve regurgitation and aneurysm. Concomitant arch surgery was performed in 65 patients (group A: 57; group B: 8).
  
  
  RESULTS
  Time on cardiopulmonary bypass was 121 +/- 30 min in group A, 143 +/- 24 min in group B, and aortic cross-clamp time was 87 +/- 19 min in group A and 113 +/- 24 min in group B. Average duration was therefore longer in group B (p = n.s.) Hospital mortality was 3.1 % in group A and 0 % in group B. Following elective procedures, hospital mortality was 1.1 % in group A. Freedom from aortic regurgitation over grade 2 at 4 years was 86 % in group A and 94.7 % in group B. At 4 years, freedom from proximal reoperation was 97.8 % in group A and 100 % in group B. There was no deterioration of valve function or need for reoperation observed after 1 year in either group.
  
  
  CONCLUSIONS
  Five-year results are comparable and encouraging for remodelling and reimplantation procedures. If the initial valve function and geometry is adequate, the chance of secondary failure beyond the first year is minimal.
authors.affiliation: Department of Thoracic and Cardiovascular Surgery, University Hospitals, Homburg (Saar), Germany. chhtgra@med-rz.uni-sb.de
authors.forename: T P
authors.initials: TP
authors.lastname: Graeter
authors.forename: D
authors.initials: D
authors.lastname: Aicher
authors.forename: F
authors.initials: F
authors.lastname: Langer
authors.forename: O
authors.initials: O
authors.lastname: Wendler
authors.forename: H-J
authors.initials: HJ
authors.lastname: Schäfers
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000784:Aortic Dissection / Q000401:mortality / Q000601:surgery*; D001014:Aortic Aneurysm / Q000401:mortality / Q000601:surgery*; D001021:Aortic Valve / Q000601:surgery*; D001022:Aortic Valve Insufficiency / Q000401:mortality / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation / Q000379:methods; D005260:Female; D017052:Hospital Mortality; D006801:Humans; D008297:Male; D008875:Middle Aged; D012092:Replantation / Q000379:methods; D012189:Retrospective Studies