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facilities. Located at new outpatient therapy center offering the latest in
laparoscopy and hysteroscopy. Accomodations for visitors are nearby, safe,
and inexpensive.
IUI and Ovulation Induction: Reviewing the Data and Advising Patients
Title:The effectiveness of ovulation induction and intrauterine insemination in the treatment of persistant infertility: meta-analysis
Author: E. Hughes
Address:Pittsburgh, Pennsylvania
Source:Human Reproduction 12: 1865-1871 (September) 1997
Summary:When less aggressive interventions have failed, couples frequently
undergo one or more treatment cycles using gonadotropins for ovarian stimulation.
This may occur with or without intrauterine insemination (IUI ), before advancing
to the consideration of IVF. There are obvious economic and minimal intervention
advantages to this approach but there are disadvantages such as: hyperstimulation
syndrome and multiple pregnancy risk ( a timely topic of discussion). This systematic
review using two approaches to meta-analysis evaluates the effectiveness of
IUI with or without gonadotropin (FSH) in the treatment of persistant infertility.
Randomized control trials were identified from 1966 to the present. First, the
Mantel- Haenzel approach of meta-analysis was applied to 8 trials comparing
FSH/ IUI with FSH/ timed intercourse. The common odds ratio for pregnancy was
2.37 [95% confidence interval (CI), 1.43,3.90. This suggests a significant improvement
in fecundity for those couples participating in IUI following ovulation induction.
The second meta-analysis evaluated the independent effects of treatment with
FSH, clomiphene citrate, IUI, male factor and endometriosis using a stepwise
logistic regression. 22 trials including a total of 5214 cycles were analyzed.The
odds ratios were: FSH was 2.35 (95% CI, 1.87-2.94); IUI, 282 (95% CI 2.18,3.66);
male factor; 0.48 (95% CI .0.37, 0.61; and endometriosis, 0.45 (95%CI 0.27,
0.76). Clomiphene citrate failed to enter the regression model. It is hoped
that this review will prove useful for the clinician when counseling couples
as to their treatment options concerning persistant infertility treatment .
An example of applying this meta-analysis overview to counseling efforts might
be: a couple with 4 years of primary male factor infertility would have a fecundity
rate of 1%. This data suggests that a combination of IUI with FSH for ovarian
stimulation would increase this fecundity rate to 5%. Or a couple with 2 years
of unexplained secondary infertility could increase their rate of 4% to 8% using
IUI with FSH for ovarian stimulation. The authors note that there is a need
for future studies evaluating IUI/FSH versus no treatment Comment:IUI
represents a good method for semen analysis and if properly timed, it probably
has a positive effect on fertiltiy in the first several cycles. Itsą usefulness
is highly questionable in multiple attempts. Since sperm are activated in the
preparation process for IUI and since the cervical reservoir is by-passed with
the procedure, it is critically important to time the IUI to just before ovulation.
This timing is improved in gonadotropin cycles with hCG induced ovulation and
may account for the slightly increased pregancy rates reported in these cycles.
Results remain equivocal as to the role of IUI in natural or clomiphene stimulated
cycles.