title: The changes in ovarian hormone levels and ovarian artery blood flow rate after laparoscopic tubal sterilization.
abstract: OBJECTIVE
  To investigate the changes in serum ovarian hormone levels and ovarian artery blood flow rate by Doppler ultrasonography following laparoscopic tubal sterilization.
  
  
  METHODS
  Laparoscopic tubal sterilization have been performed on 13 voluntary subjects between the sixth and eighth days of the menstrual cycle. Serum ovarian hormone levels and ovarian artery blood flow rate, by Doppler ultrasonography, were determined 3 days before the operation, on the post-operative third day and on the post-operative third month. The results of 10 participants who finished the follow-up period were analyzed.
  
  
  RESULTS
  There were no statistically significant changes in serum levels of ovarian hormones after laparoscopic tubal ligation. The end-diastolic blood flow in ovarian artery was found to be decreased following tubal sterilization (8.7+/-2.8 and 7.4+/-1.8m/sec, respectively, P>0.05), while resistivity index (RI) increased after the operation (0.7+/-0.1 and 0.8+/-0.03, respectively, P>0.05).
  
  
  CONCLUSIONS
  There was no change in ovarian hormone levels after laparoscopic tubal sterilization. There is slight but statistically non-significant decrease in ovarian artery blood flow rate following tubal sterilization, signifying a local increase in vascular resistance.
authors.affiliation: Department of Obstetrics and Gynecology, School of Medicine, Gazi University, Cicekdagi Sok No. 12/2 GOP, Besevler, 06 700, Ankara, Turkey. btiras@tr-net.net.tr
authors.forename: M
authors.initials: M
authors.lastname: Bulent Tiras
authors.forename: V
authors.initials: V
authors.lastname: Noyan
authors.forename: H
authors.initials: H
authors.lastname: Ozdemir
authors.forename: H
authors.initials: H
authors.lastname: Guner
authors.forename: A
authors.initials: A
authors.lastname: Yildiz
authors.forename: M
authors.initials: M
authors.lastname: Yildirim
mesh_terms: D000328:Adult; D000735:Androstenedione / Q000097:blood; D001158:Arteries; D001783:Blood Flow Velocity; D019314:Dehydroepiandrosterone Sulfate / Q000097:blood; D004958:Estradiol / Q000097:blood; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood; D006728:Hormones / Q000097:blood*; D006801:Humans; D010535:Laparoscopy; D007986:Luteinizing Hormone / Q000097:blood; D010053:Ovary / Q000098:blood supply*; D011374:Progesterone / Q000097:blood; D011388:Prolactin / Q000097:blood; D011673:Pulsatile Flow; D013246:Sterilization, Tubal; D014655:Vascular Resistance
chemical_list: D006728:Hormones; D000735:Androstenedione; D011374:Progesterone; D004958:Estradiol; D019314:Dehydroepiandrosterone Sulfate; D011388:Prolactin; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone