EOR Gyn Flashcards
define dysfunctional uterine bleeding and name the two types
abnormal frequency/intensity due to NONORGANIC causes (NOT reproductive, systemic or iatrogenic) .
- chronic anovulation
- ovulatory
describe the pathophys of dysfunctional uterine bleeding - chronic anovulatory
Disruption of hypothalamic-pituitary-ovarian axis. Seen at the extremes of age. Unopposed estrogen, without ovulation there is no progesterone = unopposed estrogen → incr endometrial growth w/ irregular, unpredictable shedding as the endometrium outgrows its own blood supply.
describe the pathophys of dysfxn uterine bleeding - ovulatory
regular cycle with prolonged progesterone secretion (due to decreased estrogen) → blood loss from endometrial vessel dilation and prostaglandins.
what is the normal frequency, duration and volume
freq: 24-38 days, duration: 4-8days, volume: 5-80mL
cryptomenorrhea vs menorrhagia
- Cryptomenorrhea: light flow/spotting
- Menorrhagia: heavy/prolonged bleeding @ normal interval
metrorrhagia vs menometrorrhagia
- Metrorrhagia: irregular bleeding between cycles
- Menometrorrhagia: irregular, excessive bleeding between cycles
oligomenorrhea vs polymenorrhea
- Oligomenorrhea: infrequent menstruation, cycle length >35 days
- polymenorrhea: frequent menstruation, cycle interval < 21 days
txt goals and options for dysfxn uterine bleeding
control acute bleed, prevent future bleeding, minimize endometrial CA risk
Acute severe bleed: high dose IV estrogen or high dose OCPs. reduce dose as bleeding improves
MC Anovulatory or Ovulatory: OCPs, progesterone if estrogen is contraindicated, GnRH agonists (leuprolide).
Sx: hysterectomy or endometrial ablation
which parts of the cycle do estradiol and progesterone dominate?
estradiol- follicular (up to day 14)
progesterone - luteal (after day 14) up to menses
when does body temperature spike in the menstrual cycle?
just after ovulation (after LH + FSH spike)
when is the proliferative and secretory phase of the cycle?
proliferative - day 5 -14
secretory- day 14- 28 –> menses
what is the MC gyn CA in US?
endometrial
what increases the risk of endometrial CA?
Estrogen-dependent CA
- risk increases with estrogen exposure (nulliparity, anovulation, PCOS, obesity, late menopause, tamoxifen, HTN, DM)
- OCPs are protective
how is endometrial CA dx - what does Bx and US show?
endometrial Bx = adenocarcinoma, US= endometrial stripe >4mm.
txt for endometrial CA : stage I, II/III, IV
Stage I: total hysterectomy + BSO +/- radiation
Stage II/III: total +BSO + lymph node excision +/- radiation
Stage IV: systemic chemo
pathophys for endometriosis
retrograde menstrual flow, hematogenous/lymphatic spread, stem cells from bone marrow, coelomic metaplasia (congenital development).
MC site of endometriosis
ovaries
uterus grows up and out of the pelvis (past pubic symphysis) at what GA?
12 wks
what does endometriosis increase the risk of ?
infertility
what is the triad of symptoms for endometriosis ?
- Cyclic premenstrual pelvic pain 2. Dysmenorrhea 3. dyspareunia . +/- dyschezia
how do you Dx endometriosis?
laparoscopy w/ Bx for definitive
what is a “chocolate cyst” ?
possible sequelae of endometriosis
= Endometrioma: involving ovaries large enough to be considered tumor
while expectant mgmt for endometriosis with minimal symptoms/trying to conceive, what are medicine txt options for more serious cases?
Medical therapy: NSAIDs, COCs, Progesterone, GnRH agonists (leuprolide), testosterone (Danazol- induces pseudomenopause by suppressing FSH/LH and midcycle surge)
Surgical options for txt of endometriosis?
endometrial ablation, TAH
islands of endometrial tissue in myometrium → diffusely enlarged uterus. = what dx?
adenomyosis
S+S of adenomyosis?
worsening menorrhagia, dysmenorrhea
tender, symmetric, enlarged “boggy uterus”
txt options for adenomyosis?
total abdominal hysterectomy (TAH). conservative used to preserve fertility (analgesics, low dose OCPs)
what race are leiomyomas MC in?
African americans
intrauterine growth related to estrogen production - regresses after menopause. what is the Dx?
leiomyoma (fibroids)
what is the MC symptom of leiomyoma (apart from the most common who are asymp)?
painless bleeding
txt of leiomyoma
MC observation or meds (leuprolide GnRH agonist, progestins)- prior to Sx to shrink + control vascularity) + Sx (hysterectomy/myomectomy).
*- Goal is to achieve pregnancy, if this is not wanted then just hysterectomy. Ability to conceive after myomectomy is very low so this is rarely done.
what is endometritis? what increases the risk of it?
infection of endometrium, chorioamnionitis (fetal membrane infection), usually polymicrobial (vaginal flora, aerobic/anaerobic)
Risk: postpartum + post abortive. C section MC
txt of endometritis ? prophylaxis w/ c section?
post-C Section - clindamycin + gentamicin. Post-vaginal delivery or chorioamnionitis - ampicillin + gentamicin
prophylaxis w/ 1 dose 1st gen cephalosporin during C-section
what is the grading of uterine prolapse ?
I - descent into upper vagina ⅔ vagina.
II - cervix approaches introitus (vaginal opening)
III - outside introitus.
IV- entire uterus outside vagina (complete)
txt for uterine prolapse?
Txt: Pessaries, estrogen (for atrophy), Sx hysterectomy, uterosacral or sacrospinous ligament fixation.
what causes PID? MC organisms?
ascending polymicrobial infection caused by cervical microorganisms (Chlamydia trachomatis, Neisseria gonorrhoeae..and potentially Mycoplasma genitalium)
when in the cycle does PID typically show symptoms? what are S+S?
presents usually in the 1st half menstrual cycle. pelvic/abdominal pain + one of the following… adnexal tenderness, cervical motion tenderness (chandeliers sign), fundal tenderness. + vaginal discharge/friable cervix, irregular bleeding, dyspareunia, N/V, fever.
Dx options for PID? findings in labs, Bx, imaging
- inc WBC on microscopy of vaginal discharge, inc ESR, inc CRP, + GC/Chlamydia
- Endometrial biopsy = endometritis
- imaging : TVUS or MRI = thickened, fluid filled tubes, tubo-ovarian abscess, hyperemia on dopplers( suggest infection).
txt for PID? who do you hospitalize? what can untxted PID lead to?
txt underlying cause
Hospital txt: pregnancy, failure to oral therapy, severe illness w/ high fever N/V, tubo-ovarian abscess.
Prevention/Education: Untreated can lead to infertility, chronic pelvic pain, ectopic pregnancy, pelvic adhesions
what can help prevent the reccurence of ovarian cysts?
OCPs
MC cause ovarian torsion?
MC caused by ovarian cyst >5cm
pathophys of PCOS
Due to insulin resistance. Abnormal hypothalamic-pituitary-ovarian axis → increased insulin and increased LH driven = increase ovarian androgen production.
PCOS: what are the levels of testosterone and LH:FSH ratio? what does US show?
incr testosterone, LH: FSH >3:1, US - “string of pearls”
medical txt for PCOS
combo OCPs (normalizes bleeding and suppresses androgen), spironolactone for anti-androgen (or leuprolide, finasteride), infertility = clomiphene, metformin, lifestyle changes.
what are the increased risk factors for ovarian CA?
+FH, incr ovulatory cycles (infertility,nulliparity, >50yo, late menopause), BRCA
Dx of ovarian CA?
biopsy MC epithelial
how is txt of ovarian CA monitored?
Serum Ca-125 levels to monitor txt progress.
what strains of HPV are most common to cause cervical CA? (5)
HPV 16,18, 31, 33 and 45.
2 types of cervical cancer?
2 types: MC squamous, also adenocarcinoma (columnar cells) (clear cell carcinoma linked with DES- death sentence)
MC common symptom of cervical CA?
post coital bleeding/spotting MC symptom.
Dx of cervical cancer?
Dx: colposcopy w/ biopsy
txt of cervical cancer based on stage 0, I-IIa, IIb/IVa, IVb
Stage 0: carcinoma in situ: local txt (excision, ablation), TAH-BSO
Stage I - IIa: microinvasion: Sx (conization, TAH/BSO, radiation)
Stage IIb/ IVa: local advanced: radiation/chemo
Stage IVb (distant METS): palliative radiation, chemo.
what are the guidelines for pap smear? (starting age, stopping age + frequency of testing
Start: Age 21
Frequency: Cytology every 3 years between ages 21-29. Cytology with HPV every 5 years 30-65 → if HPV + → colposcopy
Stop: Age 65 if routine screening in last 10 years
what can cervicitis lead to?
PID
what are the two levels of cytology from a pap smear?
LSIL (low grade squamous intraepithelial lesion)
HSIL (high grade squamous intraepithelial lesion- ALL layers of squamous epithelium w/ abnormal cells)
what are the 3 levels of histology from Bx of cervical dysplasia?
CIN I (LSIL) = mild dysplasia contained to ⅓ basal epithelium thickness CIN 2 (HSIL) = moderate dysplasia including basal ⅔ CIN 3 (HSIL) = severe dysplasia >⅔ basal → full thickness = carcinoma in situ
what is an easy way to guess someone has cervical cancer?
Lesion w/ the naked eye = past the basement membrane = CANCER
txt for cervical dysplasia CIN 1 vs CIN2/3
CIN 1- observation or excision (LEEP - loop electrical excision procedure or cold knife cervical conization)
CIN2/3: excision (LOOP or cold knife) or ablation with cryocautery, laser cautery or electrocautery.
what is the easy classification system for abnormal uterine bleeding? what does it stand for?
PALM COEIN (Polyp, Adenomyosis, Leiomyoma, Malignancy/Hyperplasia, Coagulopathy, Ovulatory dysfxn, Endometrial, Iatrogenic, Not-yet-classified)