2- Infertility and Abortions Flashcards
What is defined as the probability of achieving a pregnancy in one menstrual cycle?
Fecundability
What is defined as infertility in pts 35 yrs and younger?
Inability to conceive after 12 months of unprotected intercourse
What is defined as infertility in pts 35 yrs and older?
Inability to conceive after 6 months of unprotected intercourse
What is the difference between primary and secondary infertility?
Primary- infertility in pts who have never conceived (increases with age)
Secondary- infertility in pts after prior fertility
What is the greatest contributor to infertility as a couple?
Female factor infertility > male factor infertility
What are the 4 main categories of male factor infertility?
Endocrine/ systemic disorders
Primary testicular defects in spermatogenesis
Sperm transport disorders
Idiopathic male infertility
In regards to semen analysis, what must be done prior to providing the sample and how many samples are taken?
2-7 days of sexual abstinence
2 samples, 1-2 weeks apart
What factors are evaluated as part of semen analysis? (according to WHO criteria) (7)
Volume
Sperm concentration
Total sperm #
Morphology
Vitality
Progressive motility
Total motility (progressive + nonprogressive)
What is the most common congenital abn causing hypogonadism and can be a cause of infertility in men?
Klinefelter’s syndrome (47 XXY)
What are the main contributing factors to female infertility?
Ova, patent oviduct, anatomic abns of uterus
What are the main complications of ovulation a/w infertility in females?
PCOS, thyroid dysfunction, hyperprolactinemia
Lack of progesterone in PCOS has what effect on menstruation?
Results in unopposed estrogen = hyperplastic growth of endometrial lining = irregular sloughing = oligomenorrhea
How does thyroid dysfunction contribute to infertility?
Can lead to oligomenorrhea or amenorrhea
What factors/ circumstances lead to high prolactin?
Breastfeeding
Breast stimulation/ intercourse
Extreme exercise
Meds (Risperidone)
If serum prolactin levels are elevated, repeat test should be performed with instruction of what?
No exercise, intercouse, breast stimulation + fasting
(24 hours)
If prolactin levels are persistently elevated, what should be evaluated for?
Pituitary adenoma with MRI
What is the tx of anovulation due to PCOS?
Weight loss
Provera cycling
Metformin
Clomiphene
What is the tx of anovulation due to hyper or hypothyroidism?
Hyper = PTU
Hypo = Levothyroxine
What is the tx of anovulation due to hyperprolactinemia?
Bromocriptine, but d/c once (+) pregnancy test
What drugs are used for ovulation induction?
Letrozole- 1st line (but not FDA approved for this use- pt edu)
Clomiphine
(often used w/ intrauterine insemination (IUI))