title: [Spermatic vein and artery ligation for varicocele].
abstract: OBJECTIVE
  To assess the influence of spermatic vein and artery ligation on testicular hemodynamics, spermatogenesis and testis volume in varicocele patients.
  
  
  METHODS
  Eighty-eight varicocele patients were randomly divided into a spermatic vein and artery ligation (n = 46) and a spermatic vein and artery preservation group (n = 42). The testicular hemodynamic parameters, testis volume and results of semen analyses were obtained before and 6 months after the surgery and compared between the two groups.
  
  
  RESULTS
  There were no significant differences in peak systolic velocity (V(max)), end diastolic velocity (V(min)), mean enveloped velocity (V(mean)) and V(min) of the capsular artery (CA) either between the ligation and preservation groups (P > 0.05) or between pre- and post-operation (P > 0.05). Sperm density, vitality and motility were significantly improved after surgery (P < 0.01), with no significant differences between the two groups (P > 0.05). No significant difference was found in the testis volume between the two groups before and after the operation (P > 0.05).
  
  
  CONCLUSIONS
  Spermatic vein and artery ligation in varicocelectomy does not affect the testicular hemodynamics, spermatogenesis and testis volume of varicocele patients. Both the spermatic vein and artery should be ligated when necessary.
authors.affiliation: Department of Urology, Daqing Oilfield General Hospital, Daqing, Heilongjiang 163000, China. cgq_1972@163.com
authors.forename: Guo-Qiang
authors.initials: GQ
authors.lastname: Chen
authors.forename: Dong-Fei
authors.initials: DF
authors.lastname: Jiang
authors.forename: Chen
authors.initials: C
authors.lastname: Chen
authors.forename: Xiu-Quan
authors.initials: XQ
authors.lastname: Tang
authors.forename: Xiang-Bin
authors.initials: XB
authors.lastname: Liu
authors.forename: Wen-Jun
authors.initials: WJ
authors.lastname: Bai
mesh_terms: D000293:Adolescent; D000328:Adult; D001158:Arteries / Q000601:surgery; D006801:Humans; D008026:Ligation / Q000379:methods*; D008297:Male; D013085:Spermatic Cord / Q000098:blood supply*; D013737:Testis / Q000098:blood supply; D014646:Varicocele / Q000601:surgery*; D014656:Vascular Surgical Procedures / Q000379:methods*; D014680:Veins / Q000601:surgery; D055815:Young Adult