Gynecology Flashcards
Etiology abnormal uterine bleeding
PALM-COIN
Polyp Adenomyoma Leiomyoma (fibroid) (MCC perimenopausal) Malignancy (MCC post-meno after atrophic endometrium) Coagulopathy Ovulatory dysfunction (MCC 15-19) Endometrial Iatrogenic Not yet classified
MCC abnormal uterine bleeding by age
Overall = PREGNANCY
Infants- 2/2 estrogen withdrawal, normal
After neonate, before puberty - always abnormal - urethral prolapse, infection, saddle injury, abuse
After puberty - pregnancy, anovulatory bleeding, hyper-prolactinemia, PCOS, hypothyroid
19-30 YO Structural (PALM), pregnancy, OCP use, endometrial issue
Post-menopausal - ALWAYS ABNORMAL - Atrophic endometrium vs cancer
What is anovulatory bleeding? Treatment
When you don’t ovulate/release egg during one menses cycle
Physiology: Normally ovulation triggers progesterone production. Lack in progesterone from an anovulatory cycle = abnormal bleeding - may be mistaken for normal period but can last >7 days
Treatment: Observe & reassure if 16-19. OCPs/IUD if pregnancy not desired. Pregnancy desired - short term progestin (norethidrone). Super heavy bleeding - admit
Refractory bleeding - think coagulopathy
Uterine polyp - sx, dx, tx
Abnormal uterine bleeding - P in PALM-COIN
CP: ASX bleeding BETWEEN periods (metrorrhagia) and after heavy lifting
Dx: Histologically
Tx:
ASX & low risk CA - leave
Seeking fertility or large - remove
Causing sx or inc risk CA (pos-menopausal) - remove
Removed via hysteroscopy - want to visualize the inside of the uterus to see if any other lesions - need histology report to see if it was cancerous
Post-menopausal bleeding workup
- Inspect - bleeding, ulcers, lesions? Pap smear
- Transvaginal US - measures endometrial thickness
- < 4mm low risk CA, >4mm - sonohysterogram (inject fluid into uterus, see if focal or global thickness)
- Focal thickness - hysteroscopy w/ Bx. Global thickness - Endometrial bx +/- D&C
- Bx results - w/ atypia - hysterectomy. W/o atypia IUD, noethindrone, medroxyprogesterone
MCC AUB 19-39 YO
Uterine polyp
12-19 YO MCC AUB
Anovulatory cycles 2/2 immature HPO axis
Workup of AUB
Pregnancy test CBC Thyroid function tests Coags Cervical cx (esp w/ post-coital bleeding)
Ultrasound - can show IUP, endometrial thickness, ectopic preg, adnexal mass
Sonohysterography - shows polyps, subserous leiomyomas (fibroids), adenomyomas
Abnormal pap –> colposcopy w/ Bx & EC
Estrogen free contraceptive methods - when given? List methods available
Given to postpartum women - can’t have estrogen = more clots & gets in breast milk. >35 YO & smokes estrogen C/I bc of clots. Stroke, migraine w/aura, VTE, current breast CA, coagulopathy
IUD (C/I active infection, didephyls)
Progesterone only pills (postpartum)
Depo-Provera (deprives of fertility, pro only)
Nexplanon (irregular bl, not if change wt)
Copper IUD
Disadvantages copper IUD
Heavy menses
Dysmenorrhea
C/I to IUD
Distortion of uterine cavity, active infection, pregnancy, PP sepsis, undiagnosed uterine bleeding
Disadvantages Nexplanon
Big weight change = difficult removal
Irregular bleeding patterns in some
BBW Transdermal patch
BLOOD CLOTS
Therefore cannot give to pt w/ inc risk clots!!! (Smokers, prior Hx)
Also less effective in obese (dec ab)
Which contraceptive method has BBW for blood clots?
Transdermal patch
Do NSAIDs decrease or increase menorrhagia?
Decrease
MCC AUB postmenopausal
Atrophic endometrium Endometrial proliferation/hyperplasia Endometrial or cervical cancer Unopposed estrogen HRT or HRT w/ progesterone Atrophic vaginitis Trauma Endometrial polyps Friction ulcers 2/2 prolapse
What impact do thyroid hormones have on menstruation? AKA why is TFTs a part of the workup of amenorrhea?
Thyroid produces hormones that regulate metabolism - can impact the HPO axis!
Elevated TRH makes the pituitary gland secrete more prolactin….prolactin in turn INHIBITS GnRH!
No GnRH = NO FSH/LH = NO OVULATION!!!
Therefore MUST check TFTs as part of any ovulation workup
Thyroid issues can also cause pregnancy loss & complications in fetal development because of this.
The follicular phase of the ovarian cycle corresponds to the proliferative or secretory phase of the uterine cycle?
Proliferative
During second half of ovarian follicular phase is when the endometrium of the uterus is proliferating in preparation for the implantation of an egg
The luteal phase of the ovarian cycle corresponds to the proliferative or secretory phase of the uterine cycle?
Secretory
After ovulation, the progesterone produced by the CL stabilizes the endometrium of the uterus. This part of the uterine cycle is known as the secretory phase (name is kind of a misnomer - makes it sound like your menstruating here but you’re not yet. Called secretory phase because progesterone stimulates endometrium secretory cells to secrete mucus - prevents penetration of another sperm)
IF no implantation of egg, the CL degenerates and progesterone falls, then your endometrium degenerates & a few days later start menstruating = day 1 of cycle and day 1 of follicular phase
A 15 year old presents to your primary care office stating she has never had her period - on exam you notice she is short in stature, has a webbed neck, and wide-spaced nipples - what is the most likely cause of her amenorrhea?
Turner syndrome - causes amenorrhea & infertility but can also be a/w coarctation of the aorta = not safe to carry a pregnancy
Primary armenorrhea vs secondary amenorrhea?
Primary - woman has NEVER had a period in her entire life
Age 15 if has 2nd sex characteristics. Age 13 if NO 2nd sex characteristics.
Secondary is you’ve had one or more menses but stopped having periods for >3 cycles or if periods are irregular than no menses for > 6 cycles (months)
Etiology of primary amenorrhea
> 50% caused by genetic and anatomic abnormalities!!!
Mnemonic - MOD-(ified) PATH to pregnancy
Mullerian agenesis (15%) Ovarian (gonadal) dysgenesis (43%) Delay of puberty (15%) - PCOS (more commonly 2nd amen) Anorexia nervosa/weight loss Transverse vaginal septum Hypopituitarism Hyperprolactinemia/prolactinoma GnRH deficiency
Gonadal (ovarian) dysgenesis
Gonadal (Ovarian) dysgenesis (43%) of primary amenorrhea
- Full w/ normal karyotype (46XY -Swyer syndrome, 46XX), partial, or turner (45, X0)
- Gonadal dysgenesis is classified as any congenital developmental disorder of the reproductive system in the male or female. It is the defective development of the gonads in an embryo, with reproductive tissue replaced with functionless, fibrous tissue, termed streak gonads
46 XY gonadal dysgenesis = Swyer syndrome. Rare. Swyer syndrome, or XY gonadal dysgenesis, is a type of hypogonadism in a person whose karyotype is 46,XY. The person is externally FEMALE with streak gonads, and if left untreated, will not experience puberty
Genotypically MALE karyotype. But defect so that not expressed. Have uterus, FT, etc, but gonads are not functional & are fibrotic. Can become cancerous later in life, should be surgically removed as child. Must begin HRT in adolescence to induce any female secondary sex characteristics. So presents as primary amenorrhea w/ absence of pubarche and thelarche as well!!
Mullerian agenesis
Mullerian agenesis (15%) of primary amenorrhea
- Congenital malformation characterized by a failure of the Müllerian duct to develop, resulting in a missing uterus and variable degrees of vaginal hypoplasia of its upper portion
Etiology secondary amenorrhea
Ur HPPOO = MESSED UP! Uterine (7%) r Hypothalamus (35%) PREGNANCY Pituitary (17%) Ovarian (40%) Other (1%)
Examples of hypothalamic dysfunction in secondary amenorrhea
BFTP: Etiology 2nd amen: Ur HPPOO = MESSED UP! Uterine (7%) r HYPOTHALAMUS (35%) PREGNANCY Pituitary (17%) Ovarian (40%) Other (1%)
Examples of hypothalamic dysfunction:
Functional hypothalamic amenorrhea (STRESS, OVER-EXERCISE, ANOREXIA - stress = CORTISOL which SHUTS DOWN GnRH secretion!!!)
Isolated GnRH deficiency
Other - systemic illness
Examples of pituitary dysfunction in secondary amenorrhea
BFTP: Etiology 2nd amen: Ur HPPOO = MESSED UP! Uterine (7%) r Hythalamus (35%) Pregnancy PITUITARY (17%) Ovarian (40%) Other (1%)
Examples of pituitary dysfunction in 2nd amen:
Prolictinoma
Hyperprolactinemia
Other sellar masses
Examples of ovarian dysfunction in secondary amenorrhea
BFTP: Etiology 2nd amen: Ur HPPOO = MESSED UP! Uterine (7%) r Hypothalamus (35%) PREGNANCY Pituitary (17%) OVARIAN (40%) Other (1%)
Examples of ovarian dys in 2nd amen: Turner syndrome (45X0) 46 XY gonadal dysgenesis Primary ovarian insufficiency (POI) - menopause<40YO Ovarian tumors PCOS
Swyer Syndrome
Swyer syndrome = gonadal (ovarian) dysgenesis = technically male karyotype (46XY) but have uterus, FT, just no gonads (ovaries) so no estrogen, progesteron = no 2nd sex characteristics etc
Rare. Genotypically male karyotype. But there’s a genetic defect so that XY not expressed correctly. Have uterus, FT, etc, but gonads are not functional & are fibrotic. Can become cancerous later in life, should be surgically removed as child. Must begin HRT in adolescence to induce any female secondary sex characteristics. So presents as primary amenorrhea w/ absence of pubarche and thelarche as well!!
PCOS
Ovaries have increased androgen production which arrests the growth of the follicles so the proliferative phase is not followed by a secretory phase.
Inc androgen stops dev, no ovulation occuring. Ov dys = si/sx. Hirsutism, acne, increased hair growth. Have insulin resistance, overweight. PCOS have to have one of two following criteria:
- PC ovaries on US
- Si/sx hyperandrogenism (Overweight/obese w/ insulin resistance/acne/hirsutism/hair)
- Oligomenorrhea (long cycles, go >35 days, lots of annovulatory cycles etc) or amenorrhea (uncommon, but if happens = secondary) typically not first presenting sx of PCOS –> tough dx to make sometimes, differing presentations
More often oligomenorrhea. Therefoe more often secondary not primary amen.
Note: Polycystic ovaries does not mean PCOS. Must meet 2/3 criteria (hyperandrogenism –> measure testosterone or look for signs, also Polycystic ovaries on US & oligomenorrhea/amenorrhea
What is Asherman syndrome?
AKA IUA (intrauterine adhesions) = Scarring of uterus or endometrium. Secondary. Not at birth. Caused by post-partum hemorrhage, infection of endometrium etc
There isn’t any one cause of AS. Risk factors can include myomectomy, Cesarean section, infections, age, genital tuberculosis, and obesity
Uterine causes of secondary amenorrhea?
BFTP: Etiology 2nd amen: Ur HPPOO = MESSED UP! UTERINE (7%) r Hypothalamus (35%) PREGNANCY Pituitary (17%) Ovarian (40%) Other (1%)
Uterine causes of 2nd amen - more straight forward structural abnormalities
Intrauterine adhesions (asherman syndrome) - Scarring of uterus or endometrium. Secondary. Not at birth. Caused by post-partum hemorrhage, infection of endometrium etc
Mullerian agenesis - no uterus or no vagina 2/2 no mullerian duct development in utero
Imperforate hymen
Transverse vaginal septum
Primary amenorrhea workup
Look up up to date chart
Labs: Hcg, FSH, TSH, PRL & pelvic ultrasound to see if uterus is present
If no uterus –> order karyotyping (mullerian agenesis, complete androgen insensitivity syndrome (rare), 5-alpha-reductase deficiency)
If uterus present w/ HIGH FSH - think 46,XY gonadal dysgenesis
If uterus w/ normal development & normal FSH: structural abnormality (imperforate hymen, transverse vaginal septum) OR endocrine abnormality (high prolactin, abnormal TSH etc)
If uterus w/ normal FSH & NO 2nd sex dev –> repeat FSH and LH - if both low = congenital GnRH deficiency or delay of puberty. If LH low, FSH normal, then functional hypothalamic amenorrhea (stress, anorexia etc) or systemic illness - for either you need a pituitary MRI to rule out selar mass
Dysmenorrhea definition
Recurrent crampy lower abd pain that occurs on or near (DURING) menstruation in the absence of other pelvic pathology
DOES NOT HAPPEN MID-CYCLE
Dysmenorrhea etiology
Caused by excess production of endometrial prostaglandin = dysrhythmic uterine contractions - prostaglandins also stimulates the GIT so can have nausea, vomiting, diarrhea
Ddx dysmenorrhea
Adenomyosis Fibroids Endometriosis PID Miscarriage Ectopic Psychogenic
Tx dysmenorrhea
FIRST LINE = NSAIDS (decrease PGE!!!)
SECOND LINE = OCPS - (Note: Can also be considered first line for patients who are sexually active & want contraception as well)
PMS definition
Physical, emotional, behavioral, and cognitive symptoms that occur repetitively in the SECOND half of the menstrual cycle which RESOLVE after the onset of menses & interfere with some aspect of the woman’s life
This is the key difference between dysmenorrhea and PMS = timing
PMDD definition
Severe form of PMS which symptoms of anger, irritability, and internal tension are prominent
PMS/PMDD pathophysiology
Unknown but thought to be 2/2 hormonal changes ensuing after ovulation which affect the functioning of central neurotransmitters
Treatment of PMS/PMDD
1st line = SSRIs
2nd line = OCPs
3rd line = GnRH agonists w/ low dose estrogen progestin replacement (OCP)
4th line = surgery
Reasons why you cannot have estrogen
Recent pregnancy - hypercoagulable 6 weeks after
Family hx blood clots
Prior history of blood clots
> 35 & smoker (high risk clots)
Prior history of stroke, IHD, migraine w/ aura
Indication for OCPs
Menses regularity Tx menorrhagia, dysmenorrhea Menstrual migraine Tx acne/hirsutism To increase BMD Bleeding uterine fibroids Hypertension (>160/110)
Do OCPs increase or decrease the risk of endometrial , ovarian, and colorectal cancer?
Decreases
Can you breastfeed on OCPs?
NO YOU CAN NOT - estrogen gets into breast milk
Breast-feeding mothers MUST use progesterone-only birth control option
Progesterone-only birth control options
Oral progesterone only pills (given postpartum) Depo-Provera shots Copper IUD Hormonal IUD Nexplanon Female/male sterilization
Disadvantages of progesterone only pills
Short half life - MUST TAKE SAME TIME EVERY DAY
No suppression of follicular cysts
Irregular bleeding
Does less estrogen in OCPs cause more or less breakthrough bleeding? -when does the BTB occur in the cycle?
Less estrogen = more BTB on days 1-9 of the cycle
Which contraceptive method has a BBW and what is that BBW?
Transdermal patch has a BBW for blood clots & therefore you cannot to give it to smokers or people with increased risk of clots
Also - less effective in obese people (less absorption)
Does the Nuvaring have estrogen in it? What is one disadvantage of it?
Yes it does have estrogen
It causes increased vaginal discharge (think fb)
Cannot give if breastfeeding
9% failure rate
What are two important things to remember about Depo-provera injection regarding family planning and when giving to teens?
Depo-Provera = “deprive’ of fertility/bone density & “Pro” gesterone only
Return of fertility is delayed 6-12 months
Causes bone loss - so teens must supplement with Vitamin D & calcium
Also causes WEIGHT GAIN = bad for teen
When is a follow up appointment suggested after hormonal or copper IUD placed?
6 weeks - greatest time of ejection after a period
What 3 things do you have to consider before placing an IUD
No current infection (GC/Chlamydia) NOT PREGNANT Undiagnosed uterine bleeding Distortion of uterine cavity PP sepsis
Method of inhibiting pregnancy: IUD
Prevents implantation (thick cervical mucus & endometrial atrophy)
Method of inhibiting pregnancy: OCPs
Stops ovulation
Advantages to copper IUD
No hormones
Lasts 10-12 years
Can be used for emergency contraception
MOA: Not fully understood but copper ions create hostile environment for implantation, physically blocks implantation
Advantages copper IUD
Can be used as emergency contraception
Non-hormonal - good if older & can’t have any hormones
REALLY cheap
Male sterilization follow up care after the procedure
Appointment 3 months after for semen analysis - use backup method until that appointment
Methods of birth control that prevent ovulation
OCPs, Nexplanon, depo-provera, nuvaring
Methods of BC that prevent fertilization
Abstinence, coitus interruptus, fertility awareness, barriers (condoms, diaphragm, spermicide), sterilization
Methods of BC that prevent implantation
IUDs, emergency contraception
Advantage/disadvantage of IUD
Advantage: Lighter, shorter periods
DIsadvantage: Cannot be used to suppress ovarian cysts
What is HEELP Syndrome? When does it typically present?
HEELP = hemolysis, elevated liver enzymes, low platelets = severe manifestation/complication of preeclampsia
Typically presents > 26 weeks gestation
PMS - when do sx occur, what are risk factors, what age group is most affected, first line treatment?
Sx in LUTEAL PHASE. NO SX IN FOLLICULAR PHASE!!! (part of DSM-5 dx)
Smoking, obesity = RF
Women in 40’s most affected
First line tx = SSRI
Ovarian torsion RF definitive dx, MC US Finding, & CP
RF: Ov cyst > 4cm, prior pelvic surgery, hx tubal ligation, fertility treatments & pregnancy
DEFINITIVE dx = surgical (US w/ doppler showing NO flow is highly specific but doppler showing + flow does not rule out torsion b/c ovary has dual blood supply & may maintain some flow even in presence of torsion)
MC US finding: Enlarged, edematous ovary
CP: Severe, sudden onset, unilateral pelvic pain (R>L)
Age distribution ovarian torsion?
Bimodal - two ovaries to torse, two age groups common
15-30 & post-menopausal
MCC Ovarian torsion
Large adnexal cyst (>4cm) which causes ovary to fall over on itself & cut off blood supply
Screening for ovarian cancer
Ultrasound
CA-125 (Tumor marker is elevated in 50-90% of women with early ovarian cancer)
Risk factors for ovarian cancer
Advanced age
Family hx
Inc estrogen exposure:
Early menarche
Late menopause
Nulliparity
Protective factors ovarian cancer
Hormonal contraception
Tubal ligation
Hysterectomy
Tx ovarian cancer
Surgical excision and debulking of tumor burden
Chemotherapy
Which genetic mutations are a/w familial ovarian cancer syndrome?
BRCA1 and BRCA2
What is the most common cause of gynecological death?
Ovarian cancer
What is the strongest risk factor for the development of endometritis?
Cesarean section
RF & Clinical presentation endometritis?
RF: C-section, PROM >24 hrs, Stage 2 labor > 12 hrs, High # pelvic exams
CP: Foul-smelling lochia
Occurs 2-3d postpartum, uterine tenderness, leukocytosis, fever
Workup endometritis
Ultrasound to look for retained products of conception
Tx endometritis
Broad-spectrum abx (usually polymicrobial)
Clindamycin plus gentamycin
or ampicillin/sulbactam
First line abx therapy for endometritis?
Clindamycin & gentamycin
Fetal heart rate: Variable decel FHR monitor means?
Fetal Heart Rate: mnemonic
VEAL CHOP
Variable – Cord Compression
Early – Head Compression
Accelerations – Okay
Late – Placental Insufficiency
Early decel on FHR monitor means?
Fetal Heart Rate: mnemonic
VEAL CHOP
Variable – Cord Compression
Early – Head Compression
Accelerations – Okay
Late – Placental Insufficiency
Late decel on FHR monitoring = ?
Fetal Heart Rate: mnemonic
VEAL CHOP
Variable – Cord Compression
Early – Head Compression
Accelerations – Okay
Late – Placental Insufficiency
MC condition a/w placental abruption?
Maternal hypertension, including essential hypertension, gestational hypertension and preeclampsia.
4 T’s of PPH
Uterine ATony - MCC
Trauma to birth canal
ReTention
Coagulopathy or Thrombin d/o