title: [Valve-sparing aortic root replacement in patients with aortic root disease].
abstract: OBJECTIVE
  To review the results of the valve-sparing operation (David procedure) in patients with aortic root disease.
  
  
  METHODS
  Twenty-nine patients with aortic root disease, 20 males and 9 females, aged 39 +/- 17 (10-64), 10 being of heart functional class I, 15 of class II, and 4 of class III, and 15 with gentle, 9 with moderate, and 5 with severe aortic insufficiency underwent David procedure, one undergoing the aortic valve-sparing reimplantation (David I), 25 undergoing aortic valve-sparing remodeling (David II), and 3 undergoing a new modified aortic valve-sparing operation. After the operation the patients were followed up for 29 +/- 15 months (5-74 months).
  
  
  RESULTS
  No intra-operative death was found. The mean extracorporeal circulation time was 126 min +/- 25 min, and the aortic crossclamp time was 87 min +/- 22 min. All patients recovered to heart functional class I. Post-operatively 11 patients showed no normal, eight gently and two moderate aortic regurgitation.
  
  
  CONCLUSIONS
  The valve-sparing operation is an ideal operation to the aortic root aneurysm with more or less normal aortic leaflets and valvular ring normal.
authors.affiliation: Department of Cardiac Surgery, Cardiovascular Institute, Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100037, China.
authors.forename: Dian-yuan
authors.initials: DY
authors.lastname: Li
authors.forename: Li-zhong
authors.initials: LZ
authors.lastname: Sun
authors.forename: Liang-xin
authors.initials: LX
authors.lastname: Tian
authors.forename: Qian
authors.initials: Q
authors.lastname: Chang
authors.forename: Jun-ming
authors.initials: JM
authors.lastname: Zhu
authors.forename: Rui
authors.initials: R
authors.lastname: Jiang
authors.forename: Qiang
authors.initials: Q
authors.lastname: Meng
authors.forename: Tian-fu
authors.initials: TF
authors.lastname: Tao
authors.forename: Ning-ning
authors.initials: NN
authors.lastname: Liu
authors.forename: Xing-peng
authors.initials: XP
authors.lastname: Chen
mesh_terms: D000293:Adolescent; D000328:Adult; D001014:Aortic Aneurysm / Q000601:surgery; D001021:Aortic Valve / Q000601:surgery*; D001022:Aortic Valve Insufficiency / Q000601:surgery*; D006348:Cardiac Surgical Procedures / Q000379:methods*; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D016896:Treatment Outcome