Obstetric and Gynecology Flashcards
(180 cards)
What syndrome can cause amenorrhea after birth?
Sheehan Syndrome - postpartum pituitary necrosis after significant PPH
What hormone is deficient in Kallmann Syndrome?
Congenital GnRH deficiency
Excluding pregnancy, what is the epidemiology of secondary amenorrhea?
Ovarian 40%
Hypothalamus 35%
Pituitary 19%
Uterine 5%
Other 1%
OH PU
What syndrome should anosmia with amenorrhea make you think of?
Kallmann
A patient with galactorrhea and amenorrhea should make you think of?
Pituitary changes
Serum level of prolactin usually correlates with the size of a tumor
Dysmenorrhea aggravating factors
- Presentation at age < 30
- Menarche before age 12
- Longer cycles/duration of bleeding
- Heavy smoking
- Nulliparity
If an ultrasound of the uterus shows abnormal or absence then you should consider which conditions as a cause for amenorrhea?
Mullerian agenesis or androgen insensitivity syndromes
If a patient has secondary sex characteristics but presents with amenorrhea, negative pregnancy test and high FSH/LH then what causal conditions should be considered?
Turner
Swyer
Primary ovarian insufficiency
What prostaglandins are associated with prolonged myometrial uterine contractions and dysmenorrhea?
PGF2a , PGE2
Condition associated with dysmenorrhea and adnexal tenderness, cul de sac nodularity or tenderness
Endometriosis
Condition associated with dysmenorrhea and bulky, tender uterus
Adenomyosis
Condition associated with dysmenorrhea and enlarged uterus
Leiomyoma (uterine fibroids)
Most common gynecological tumor
Ddx: adenomyosis, PID, endometriosis
If a patient presents with dysmenorrhea that is not resolved with NSAIDs/OCPs, has a suspicious hx or an abnormal physical exam what step should be taken next?
Pelvic U/S
What medication is used for primary dysmenorrhea treatment?
PG synthetase inhibitors
naproxen, ibuprofen, mefenamic acid, and indomethacin
3-6 month trial, if pain continues consider secondary dysmenorrhea
What tests should you do for secondary dysmenorrhea investigation?
Urinalysis (UTI)
Cervical culture (STI)
Pelvic U/S (bHCG, ectopic, cysts, fibroids, IUD)
Hysterosalpingogram (polyps, leiomyoma, congenital abnormality)
Diagnostic laparoscopy
Hysteroscopy
What is the normal amount of blood loss in a period?
20-80 mL/cycle
What changes in hormones cause anovulatory cycles in perimenopausal women?
↓ # ovarian follicle pool
↓ inhibin
↑ FSH secretion
↓ FSH receptors in a decreased cohort of follicles
poor dominant follicle development
Intermenstrual bleeding differential
Infection: cervicitis, endometriosis, vaginitis, STI
Benign growth: cervical/endometrial polyp, fibroid, ectropion
Malignant growth: uterine, cervical, vaginal, vulvar, ovarian
Vulvovaginal: infection, dermatoses, system (Crohn’s)
Abnormal vaginal bleeding in a post menopausal woman
Endometrial CA until proven otherwise
If you see uterine enlargement on pelvic U/S of a non pregnant patient with abnormal vaginal bleeding what are your next steps?
Transvaginal U/S or sonohysterography to look for adenomyosis, malignancy or benign growths
If pt is menopausal do endometrial biopsy to r/o endo ca
What are the most clinically important aspects in the evaluation of pts with abnormal vaginal bleeding
Prenancy status
Hemodynamic status
What are the indications for ultrasound in a pt with abnormal vaginal bleeding
Uterine enlargement identified through pelvic exam
Any pregnant woman
Persistent vaginal bleeding
What is contraindicated in a >20 wk pregnant pt with bleeding?
Pelvic exam UNTIL U/S has excluded placenta previa
Indications for endometrial biopsy or cytological studies
- Women > 40 with abnormal vaginal bleeding
- ANY post menopausal bleeding
- High risk of endo ca ie: no kids, hx infertility, BMI>30, PCOS, hx of infrequent periods, fmhx
- Tamoxifen use
- Persistent bleeding despite 3 mo course of meds
- Post menopausal without bleeding but WITH >11 mm endo thickness on TVUS
- Previously diagnosied endometrial hyperplasia or abnormal pap with atypical cells favoring endometrial origin