Ovarian Laser Treatment in Women With Polycystic Ovarian Syndrome: A Randomized Study on the Laser Dose
NCT ID: NCT00643708
Last Updated: 2008-03-26
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.
COMPLETED
56 participants
OBSERVATIONAL
2005-01-31
2007-12-31
Brief Summary
Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.
Detailed Description
Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.
Protocol Study design This was a prospective, randomized study. Fifty-six subjects meeting the enrolled criteria were randomly divided into four groups of A、B、C、D according to a computer-generated random list. Randomization occurred after patients agreed to inclusion in the study (Figure 1). After randomization, women who were allocated in same group were intervened with same laser dosage during ovarian interstitial laser treatment. For each group of A、B、C、D, the number of laser coagulation points made in their ovaries as follows: group A, one coagulation point per ovary; group B, two points; group C, three points; group D, four to five points. To each point, the size of laser coagulation zone was 10 mm in diameter (a light spot of diameter 10 mm on the ovarian plane monitored by transvaginal ultrasound).
Techniques of ovarian interstitial laser treatment The procedure of transvaginal ultrasound-guided ovarian interstitial laser treatment has been detailed in previous data (Zhu et al., 2006). All participants were treated on the third day after progesterone-induced menstruation period. An intramuscular injection of 50-100mg of Pethidine (Pethidine Hydrochloride Injection, Shenyang First Pharmaceutical, NEPG, Shen-Yang, China) was administered to each women about 30 minutes before starting the operation. After emptying their bladder, the women were placed in lithotomy. They were then prepared using an aseptic vulva and vaginal douche. TVS was performed and the widest ovarian plane was found. Usually, one to three intraovarian points can be predetermined in the widest ovarian plane, in other words, one to three laser coagulation points can be accomplished on the widest ovarian plane. If not, the next largest ovarian plane was chosen as the next option until three to five laser coagulation points have be made in unilateral ovary. For each treatment point, a fibre optic cable of 400 um in diameter was sent to intraovarian point by means of a 17-gauge, 35-cm-long needle (K-OPS-1035-Cook IVF; Brisbane, Australia) and the electrical laser (XH-YAG-100 Laser; Wuhan Xinghua Photoelectricity Co. Ltd, Wu-Han, China) was activated persistently for two to five minutes with a power of 3-5 W and current of 8-10 A, until a 10-mm light spot appeared on the ovarian plane. In group A, only one laser treatment point was made per ovary; and group B, two points; group C, three points; group D, four to five points. The women stayed in bed for two to three hours after the surgery, after which they were re-examined with TVS in order to rule out intra-abdominal haemorrhage prior to discharge.
Postoperative Monitoring Serum hormone concentrations At the second, fourth and sixth month after the operation, a blood sample was taken on day three of menstrual cycle for measurement of serum levels of LH, FSH, testosterone, prolactin (PRL), estradiol (E2) and progesterone if the women had a regular ovulation and menstrual cycle. If not, the blood sample was taken on day three of progesterone-induced withdrawal bleeding. Another blood sample was taken on day 21 of the same cycle in order to measure the serum concentration of progesterone when ovulation could not be diagnosed by TVS.
Follicle development and ovulation Follicular growth and ovulation was monitored monthly by TVS at four to five days intervals after the operation. The scanning was repeated after two to three days when the leading follicle reached diameter of 12 mm. When the dominant follicles reached a diameter of 16 mm. LH surge was detected by urinalysis. Combined this result with TVS, ovulation and the timing of sexual intercourse could be confirmed. If the ovulation intervals during the six postoperative months were within a range of 21-35 days, the woman was documented as a responder having regular ovulation. If spontaneous ovulation and menstruation did not occur during six postoperative months, the woman was categorized as a nonresponder. The women whose status was between both would be categorized as having irregular ovulation.
Pregnancy and miscarriage A urine pregnancy test was performed if spontaneous menstruation did not occur during 16-19 days following ovulation. The pregnancy rate was calculated based on the women who conceived. Miscarriage would be considered, if gestational sac without cardiac action or previous cardiac action stopped, although a urine pregnancy test was positive.
Adverse effects Adverse effects, including intra-abdominal haemorrhage, infection, injuries of internal organs and failure of ovarian function, were recorded.
Analysis of the data Women were divided into four groups according to the number of laser coagulation points made in their ovarian interstitial as follows: group A (n=14) treated with one laser coagulation point per ovary, group B (n=14) two points, group C (n=14) three points, group D (n=14) four to five points. The means ± SD of the baseline and postoperative second, fourth and sixth month values among the four groups were calculated for the serum LH, FSH, testosterone, PRL, progesterone, E2 levels. Analysis of variance was used for statistical analysis. The ovulation rate and pregnancy rate were calculated based on the cases of postoperative spontaneous ovulation and pregnancy. Contingency table analysis was used to compare success rates, with P\<0.05 considered statistically significant.
Conditions
See the medical conditions and disease areas that this research is targeting or investigating.
Keywords
Explore important study keywords that can help with search, categorization, and topic discovery.
Study Design
Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.
CASE_ONLY
PROSPECTIVE
Study Groups
Review each arm or cohort in the study, along with the interventions and objectives associated with them.
A
14 cases
ovarian interstitial laser treatment
Different dose of laser: group A, one point per ovary.
B
14 cases
ovarian interstitial laser treatment
Different dose of laser: group B, two points per ovary.
C
14 cases
ovarian interstitial laser treatment
Different dose of laser: group c, three points per ovary.
D
14 Cases
ovarian interstitial laser treatment
Different dose of laser: group D, four-five points per ovary.
Interventions
Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.
ovarian interstitial laser treatment
Different dose of laser: group A, one point per ovary.
ovarian interstitial laser treatment
Different dose of laser: group B, two points per ovary.
ovarian interstitial laser treatment
Different dose of laser: group c, three points per ovary.
ovarian interstitial laser treatment
Different dose of laser: group D, four-five points per ovary.
Other Intervention Names
Discover alternative or legacy names that may be used to describe the listed interventions across different sources.
Eligibility Criteria
Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.
Inclusion Criteria
2. A normal hysterosalpingography or laparoscopy had to have been recorded
3. infertility
Exclusion Criteria
2. previous treatment with LOD
3. presence of tubal or male factors for infertility
23 Years
34 Years
FEMALE
Yes
Sponsors
Meet the organizations funding or collaborating on the study and learn about their roles.
Shen-Zhen City Maternity and Child Healthcare Hospital
OTHER
Responsible Party
Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.
Shen-Zhen City Maternity and Child Healthcare Hospital
Principal Investigators
Learn about the lead researchers overseeing the trial and their institutional affiliations.
Wen-Jie Zhu, Master
Role: STUDY_CHAIR
Shen-Zhen City Maternity and Child Healthcare Hospital
References
Explore related publications, articles, or registry entries linked to this study.
Zhu W, Chen M, Fu Z, Li X, Qin C, Tang X, Chen X. Repeat transvaginal ultrasound-guided ovarian interstitial laser treatment improved the anovulatory status in women with polycystic ovarian syndrome. Eur J Obstet Gynecol Reprod Biol. 2012 May;162(1):50-4. doi: 10.1016/j.ejogrb.2012.02.008. Epub 2012 Mar 6.
Other Identifiers
Review additional registry numbers or institutional identifiers associated with this trial.
200602070
Identifier Type: -
Identifier Source: org_study_id