title: Changes in uterine blood flow following laparoscopic myomectomy with or without uterine artery ligation on two- and three-dimensional power Doppler ultrasound.
abstract: OBJECTIVE
  To evaluate differences in uterine perfusion following laparoscopic myomectomy with or without uterine artery ligation (UAL).
  
  
  METHODS
  From November 2005 to July 2007, we enrolled prospectively 105 women with symptomatic myomas who were scheduled to undergo laparoscopic myomectomy (57 with UAL (study group) and 48 without (control group)). Power Doppler ultrasound was used to evaluate uterine artery resistance (RI) and pulsatility (PI) indices and peak systolic velocity (PSV) and three-dimensional (3D) power Doppler ultrasound was used to obtain vascularization (VI), flow (FI) and vascularization flow (VFI) indices of the uterine tissue, which were calculated by VOCAL (Virtual Organ Computer-aided AnaLysis) software.
  
  
  RESULTS
  Characteristics of the myomas, operative time and duration of hospital stay were comparable between the two groups, whereas the median (range) of estimated blood loss (50 (50-200) vs. 100 (50-900) mL, P = 0.001) and the frequency of excessive bleeding of > 500 mL (0% vs. 10%, P = 0.018) were significantly lower in the study group. The RI, PI and PSV were comparable between the two groups preoperatively, significantly lower in the study group 1 week after surgery (0.69 vs. 0.74, 1.31 vs. 1.76, and 34.08 vs. 47.49, respectively, P < 0.05), and comparable again 3 months later. The myometrial VI and VFI decreased after surgery and all three 3D power Doppler indices of the study group were similar to those of the control group throughout the study period.
  
  
  CONCLUSIONS
  Concurrent UAL during laparoscopic myom- ectomy reduces the intraoperative blood loss and frequency of excessive bleeding without permanently compromising uterine perfusion.
authors.affiliation: Department of Obstetrics and Gynecology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, Taiwan.
authors.forename: W-C
authors.initials: WC
authors.lastname: Chang
authors.forename: S-C
authors.initials: SC
authors.lastname: Huang
authors.forename: B-C
authors.initials: BC
authors.lastname: Sheu
authors.forename: J-C
authors.initials: JC
authors.lastname: Shih
authors.forename: W-C
authors.initials: WC
authors.lastname: Hsu
authors.forename: S Y
authors.initials: SY
authors.lastname: Chen
authors.forename: D-Y
authors.initials: DY
authors.lastname: Chang
mesh_terms: D000328:Adult; D001158:Arteries / Q000000981:diagnostic imaging / Q000502:physiology; D001783:Blood Flow Velocity; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods; D010535:Laparoscopy; D008026:Ligation; D008875:Middle Aged; D009214:Myoma / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000601:surgery; D011446:Prospective Studies; D011673:Pulsatile Flow; D018608:Ultrasonography, Doppler / Q000379:methods; D014594:Uterine Neoplasms / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000601:surgery; D014599:Uterus / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000601:surgery; D055815:Young Adult