Infertility Flashcards
Infertility Definition
● Infertility is the inability to conceive after unprotected intercourse for 1
year for patients less than 35 years old or 6 months for patients >35
years old
● >40yo → immediate treatment
Primary vs. secondary infertility
○ Primary: a pregnancy has never been achieved
○ Secondary: at least one prior pregnancy has been achieved
Other considerations or reasons to refer a patient for infertility
○ PCOS or anovulation
○ Endometriosis
○ Recurrent pregnancy loss (RPL)
○ Same sex couples
○ Transgender patients
○ Cancer patients
Fecundability rate =
probability of achieving pregnancy each month
○ <32yo: ~20-25%
○ 35yo: 12%
○ 38yo: 5%
○ 40yo: 3%
Epidemiology of infertility
● 1 in every 6 women
○ 25% male factors
○ 25% female factors
○ 35% combined infertility
○ 15% unexplained infertility
Risk Factors for infertility
● Maternal age
● Extreme weight loss or weight gain
● Inadequate diet
● Tobacco/Marijuana
● Vaginal lubricants
● PCOS
● Endometriosis
Causes of Female Infertility - cervical
○ 5-10%
■ Stenosis
■ Abnormalities of mucus-sperm interaction
Causes of Female Infertility - uterine
○ Congenital abnormalities
■ Uterine septum
■ Bicornuate uterus
○ Mullerian anomalies
■ Ex: Mayer-Rokitansky-Küster-Hauser (MRKH) Syndrome
○ Leiomyoma
○ Polyps
○ Uterine synechiae
■ Asherman’s syndrome
○ Diethylstilbestrol (DES)
Diethylstilbestrol (DES)
■ DES: a synthetic form of the estrogen that was prescribed to pregnant women between
1940 and 1971 to prevent miscarriage, premature labor, and related complications of
pregnancy
■ DES caused serious birth defects during genital formation
Causes of Female Infertility - ovarian
Hypothalamic-pituitary-ovarian axis dysfunction
■ Hypogonadism
■ Pituitary adenomas
■ Eating disorders
○ Ovulatory dysfunction
■ Often will have amenorrhea
■ PCOS
● MCC of infertility d/t anovulation
■ Diminished Ovarian Reserve/ Premature Ovarian Insufficiency
○ Gonadal dysgenesis
■ Turner syndrome
○ Chromosomal abnormalities
○ Ovarian cysts (Ex: endometriomas)
Hypothalamic-pituitary-ovarian axis dysfunction includes:
■ Hypogonadism
■ Pituitary adenomas
■ Eating disorders
Ovulatory dysfunction includes:
■ Often will have amenorrhea
■ PCOS
● MCC of infertility d/t anovulation
■ Diminished Ovarian Reserve/ Premature Ovarian Insufficiency
Tubal Factor
○ After ovulation, the fimbriae pick up the oocyte from the peritoneal fluid in the
cul-de-sac
○ Epithelial cilia transport the oocyte up to the ampulla
○ The spermatozoa are transported from the endometrium and advanced through the
fallopian tube down into the ampulla, where fertilization occurs
Abnormalities or damage to fallopian tube
■ History of infection (chlamydia/gonorrhea, PID)
■ Previous pelvic surgeries (esp. appendectomy)
■ Endometriosis
■ Ectopic pregnancy
■ Hydrosalpinx
■ Tubal ligation
Rotterdam criteria for PCOS
○ Patient must meet 2 of the 3 following criteria:
■ Oligomenorrhea or anovulation
■ Hyperandrogenism (biochemical or clinical signs)
■ PCO appearing ovaries on ultrasound → >12 follicles measuring 2-9mm on at least one ovary
Considerations for patients with PCOS
○ Check for early onset diabetes
○ Protect the uterus - patients should either be on OCP’s or cyclic Provera if they are
not having menses and not trying to become pregnant
Endometriosis
● Endometriosis is a disease where the endometrial tissue
grows outside of the uterine cavity
● Found in 6-10% of the general female population.
● This can cause severe pelvic pain during menses or
intercourse
Endometriosis etiology
● The exact mechanism in which endometriosis affects
fertility is not known
○ Infertile women are 6-8 times more likely to have endometriosis
than women that are fertile.
Endometriosis treatment
● Recommended treatment for fertility in patients with
severe Endometriosis
○ Surgery, if necessary
○ IVF
Recurrent Pregnancy Loss
● Recurrent pregnancy loss is defined as 3 consecutive miscarriages prior to 20 weeks gestation
● Warrants the basic infertility workup as well as an RPL work up
Work up for Recurrent Pregnancy Loss
○ Genetics: karyotype is ordered looking for translocations
■ Treatment: PGT-testing of the embryo after IVF is completed
○ Autoimmune disorders: rule out antiphospholipid syndrome
■ Affects uterine lining and placenta → implantation
■ Diagnosis
● Labs
○ Anticardiolipin antibodies
○ Lupus anticoagulant
○ Anti-beta2-glycoprotein-1
● If any of the above labs are positive, repeat in 12 weeks
■ Treatment: ASA +/- Lovenox during pregnancy
Accounts for 15-30% of patients seeking fertility care
Unexplained Infertility
Treatment for unexplained infertility
○ Empirical tx with controlled ovarian hyperstimulation followed by IUI has improved
the pregnancy rate in those patients
○ After 3-4 cycles of IUIs, the chance of pregnancy plateaus
Multiple factors can cause male factor infertility
- Hypothalamic-pituitary-testicular axis dysfunction
■ Hypogonadotropic hypogonadism
■ Prolactinomas
*Cushing’s
■ Low testosterone → decreased sperm production
*Testicular dysfunction
■ Primary hypogonadism (hypergonadotropic)
■ Hx of radiation, infection (mumps), varicoceles - Genetic conditions
■ Klinefelter’s syndrome
■ Androgen insensitivity syndrome
■ Congenital absence of the vas deferens
*Retrograde ejaculation - Obstruction in the duct system preventing transportation of sperm
*Aging
*Trauma
*Vasectomy
> 50% of men with this condition have CFTR (cystic fibrosis) gene
Congenital absence of the vas deferens
Testosterone use and fertility
○ This has become very popular among male patients
○ Causes azoospermia
■ Can be temporary or permanent
50% of infertile couples have some form of ____
male factor
It is important that the work up for infertility includes ______
BOTH partners
○ History
○ Timing and frequency of intercourse
○ Lubricants
○ Douches
■ “Swaying”
○ Surgical procedures
○ Previous pregnancies (both partners)
○ Medication history