Amennorhea Flashcards
Define amenorrhea
Absence in menses
Primary amenorrhea
No menses by age 14 if no secondary sexual features present
No menses by age 16 but secondary features present
Secondary amenorrhea
six months in women with previously normal menstruation
12 months in women with previous oligomenorrhea
Causes of primary amennorhea
Mullerian agenesis Vaginal atresia Turner syndrome Androgeen insensitivity syndrome Kallman syndrome
Causes of secondary amennorhea
Asherman's syndrome Pregnancy Anovulation Menopause PCOS Breastfeeding Sheehan syndrome
Polycystic ovarian syndrome
Found in 20% of all women
A complex endocrine disorder with clinical features that include hirsutism and acne (due to excess androgens), oligomenorrhoea or amenorrhoea, and multiple cysts in the ovary
Signs and symptoms (clinical features)
Oligomennorhea (75%) Infertility Hirsutism (60%) Acne (15-25%) look for acne persisting beyond adolescence Obesity HTN
Diagnosing PCOS
Polycystic ovary syndrome (PCOS) should be diagnosed if two of three of the following criteria are present, as long as other causes of menstrual disturbance and hyperandrogenism are excluded:
- Infrequent or no ovulation (usually manifested as infrequent or no menstruation).
- Clinical or biochemical signs of hyperandrogenism (such as hirsutism, acne, or male pattern alopecia), or elevated levels of total or free testosterone.
- Polycystic ovaries on ultrasonography, defined as the presence of 12 or more follicles in at least one ovary, measuring 2–9 mm diameter, or increased ovarian volume (greater than 10 mL).
PCOS treatment general
Screening for impaired glucose tolerance and T2DM
Lifestyle changes (weight loss)
Metformin
PCOS treatment wants fertility
Clomifene: selective oestrogen receptor modulator, causes release of GnRH.
Gonadotrophins: follitropin alpha/beta
PCOS treatment hirsutism only
Oral contraceptive
Anti-Androgen: Spiranolactone or Flutamide
PCOS oligo-amenorrhea only
weight loss
Oral contraceptive
Premature ovarian failure
Cessation of menses for at least 1 year before 45 secondary to loss of ovarian function
Causes of premature ovarian failure
Genetic disorders autoimmune disorders infections toxic causes (including chemotherapy or radiation) galactosaemia idiopathic.
Tests to order
Pregnancy test Serum FSH and LH (hypergonadotropism) Estradiol (low) serum antimullerian hormone (AMH) level (drops during menopause) TFTs: exclude endocrinological problems