Women's Health 1 Flashcards
Ovulation is associated with a spike in what hormone?
Luteinizing Hormone (LH)
What hormone is predominant in the follicular phase?
Estradiol
What hormone is predominant in the luteal phase?
Progesterone
Two anterior pituitary hormones (gonadotropins) associated with the menstrual cycle
- Luteinizing Hormone (LH)
2. Follicle-Stimulating Hormone (FSH)
Two ovarian hormones associated with the menstrual cycle
- Estradiol
2. Progesterone
Two phases of the ovarian cycle
- Folicular phase (preovulatory)
2. Luteal phase (postovulatory)
Three phases of the uterine cycle
- Menses
- Proliferative phase
- Secretory phase
Three purposes of the menstrual cycle
- produce an oocyte for possible fertilization
- prepare the uterus for pregnancy
- if no pregnancy, menses occurs and the cycle starts over
What is menses?
shedding of the uterine mucosa
How long does menses last?
3-7 days
How much blood is lost during menses?
20-60 ml
one R tampon holds 5 ml
What’s the definition of LMP?
the first day of bleeding
Average age for menarche
12 years old
Average age for menopause
51
Average duration of the menstrual cycle
28 (anywhere from 21-35 days)
Should we worry about a young woman who started her period 1 year ago and is having irregular menses?
No. It is normal to be irregular for the first 1-3 years, because the patient is not ovulating yet
How long do perimenopause symptoms last?
3-10 years before menopause
Definition of menopause
no bleeding for ONE WHOLE YEAR
On what day in the menstrual cycle does ovulation occur?
day 14
Explain the differences in the cycle before and after ovulation
Before:
- estrogen is the predominant steroid/ovarian hormone
- follicule
- endometrial status: menses, then proliferative
After:
- progesterone is the predominant steroid/ovarian hormone
- corpus luteum
- endometrial status: secretory
Job of FSH
develops the follicles
Job of LH
ovulation
Describe the HPO axis
Hypothalamus performs PULSATILE GnRH secretion
GnRH acts on the pituitary, causing it to secrete gonadotropins (FSH, LH)
FSH, LH act on the ovary, causing it to secrete sex steroids (estrogen, progesterone)
Explain the early follicular phase
- Low levels of sex steroids (estrogen, progesterone).
This causes FSH levels to rise.
FSH recruits more ovarian follicules, it’s trying to develop them. - Menses is happening in days 1-4
Explain the mid-follicular phase
- Folliculogenesis continues. This causes estrogen levels to INCREASE, which produces negative feedback on FSH & LH.
- The uterine lining is thickening (proliferative phase)
Explain the late follicular phase
- Dominant follicle exists. Estrogen predominates and triggers an LH surge!!
Explain the ovulation phase
LH surge»_space; LH Peak»_space; Oocyte released from dominant follicle»_space; oocyte travels into the fallopian tube for possible fertilization
How long before ovulation does LH surge begin?
36 hours
How long before ovulation does LH peak occur?
~12 hours
Some women feel a twinge of pain during ovulation, what’s it called?
Mittelschmerz
Explain the luteal phase
- Follicle is converted to a corpus luteum.
Secretes progesterone, which suppresses LH/FSH through negative feedback. Follicle recruitment is inhibited - Endometrium becomes more vascular/grandular as it prepares for implantation (secretory phase)
What hormone does the corpus luteum produce?
progesterone (P4)
Lifespan of the corpus luteum
9-11 days
What happens to the corpus luteum if there is no fertilization?
sharp decline in P4, which induces menses
What happens to the corpus luteum if fertilization occurs?
implanted zygote will secrete hCG, which sustains the corpus luteum for 6-7 more weeks
Definition of puberty
physical and sexual transition from childhood to adulthood
series of well-defined events and milestones representing secondary sexual maturation
Activation of adrenal androgen production
Adrenarche
Activation of ovaries
Gonadarche
Breast development onset
Thelarche
Pubic hair development onset
Pubarche
Onset of menses
Menarche
Put the puberty events in order or observation from earliest to latest
Adrenarche Gonadarche Thelarche Pubarche Menarche
The Hypothalamic-Pituitary-Adrenal Axis is responsible for development of 3 things:
- hair
- acne
- body odor
At what age does the HPA Axis begin to produce increased amounts of androgens?
6-8 years
What hormone is secreted by the HPA axis?
DHEA
DHEA is converted to testosterone and dihydrotestosterone
The Hypothalamic-Pituitary-Ovarian Axis is responsible for 2 things:
- ovarian production of estrogen and progesterone
2. Breast development
When is the HPO Axis functioning?
in utero until after newborn phase… resumes activity during puberty
How long does normal pubertal development take?
4 years
Order/sequence of the 4 major pubertal events
- Breast budding
- Sexual hair growth
- Growth spurt
- Menarche
At what age do the 4 major pubertal events occur?
- Breast budding: 10-11
- Sexual hair growth: 10.5-11.5
- Growth spurt: 11-12
- Menarche: 11.5-13
What are the major hormones associated with each of the 4 major pubertal events?
- Breast budding: Estradiol
- Sexual hair growth: Androgens
- Growth spurt: Growth hormone
- Menarche: Estradiol
What is the average age of menarche in the US?
12
Early and late timing of secondary sex characteristics
Early: before age 7-8
Late: not apparent by age 13
Abnormal age of menarche
No evidence of menarche by age 15-16
OR
No menses within 5 years of thelarche
Onset of secondary sex characteristics around or prior to age 6 (AA) or 7 (Caucasian)
Precocious puberty
Etiology of precocious puberty
Early sex hormone production (GnRH dependent or independent)
GnRH dependent precocious puberty is due to..
early activation of the HPO or HPA axes
idiopathic CNS infection inflammation injury neoplasm
GnRH independent precocious puberty is due to…
end organ disorders (ovary or adrenal glands)
tumors
cysts
exogenous
mutations
Which precocious puberty is “central” and which is “peripheral”
GnRH dependent= central
GnRH independent= peripheral
How to differentiate between central and peripheral precocious puberty
central: increased LH
peripheral: increased androgens
Treatment goals of precocious puberty
- arrest sexual maturation until normal pubertal age
2. maximize adult height
Definition of delayed puberty
- Secondary sex characteristics not apparent by age 13
- No evidence of menarche by age 15-16
- No menses within 5 years of thelarche
Etiology of delayed puberty
- Endocrine (HPO Axis)
- Anatomic
Two causes of delayed puberty due to HPO Axis:
- HYPERgonadotropic HYPOgonadism (Turner Syndrome)
2. HYPOgonadotropic HYPOgonadism
FSH levels in HYPERgonadotropic HYPOgonadism
> 30mlU/ml
What is happening in HYPERgonadotropic HYPOgonadism?
gonadal dysgenesis
(Turner Syndrome)
Have ovaries, but do not have ovarian follicules (“streak gonads”)
NO SEX STEROID PRODUCTION
Lack of negative feedback upon gonadotropins, results in high FSH
Primary amenorrhea
Treatment for Turner Syndrome (46X)
Induce secondary sexual maturation: Estrogen therapy
Maximize adult height
FSH/LH levels in HYPOgonadotropic HYPOgonadism
FSH + LH = <10 mlU/mL
Definition of HYPOgonadotropic HYPOgonadism
disruption between hypothalamus and pituitary
GnRH stimulation is decreased
Lower than expected levels of FSH, LH
Etiologies of HYPOgonadotropic HYPOgonadism
- Constitutional (physiologic) delay
- Kallmann Syndrome
- Anorexia, extreme exercise
- Pituitary tumors/disorders, hyperprolactinemia
Three types of anatomic delayed puberty
- Mullerian agenesis
- Imperforate hymen
- Transverse vaginal septum
What is happening in Mullerian agenesis?`
Congenital absence of upper vagina (uterus, tubes)
How isovarian function in Mullerian agenesis affected?
ovarian function is normal
What is observed in Mullerian ageneiss?
- Primary amenorrhea
- normal breast development
What is happening in imperforate hymen?
genital plate canalization is incomplete, obstructs the outflow of menses
What do you think if you observe a patient with pain, bulging, bluish appearing introitus?
Imperforate hymen
What is happening in transverse vaginal septum?
Occurs at any level of the vagina and obstructs the outflow of menses
menorrhagia
excessive bleeding
metrorrhagia
bleeding outside/between menses
Menometrorrhagia
Excessive bleeding outside/between menses
Postcoital bleeding
bleeding after intercourse
Dysmenorrhea
Painful bleeding
Postmenopausal bleeding
ANY amount of bleeding after diagnosis of menopause
How to document reproductive history
GP(T-P-A-L)
G: number of pregnancies
P: pregnancy outcomes
T: Term (>37 weeks)
P: Preterm (<37 weeks, >20 weeks)
A: Abortion (<20 weeks.. elective, ectopic, or spontaneous)
L: Live births
How to document a woman who has 4 pregnancies- 1 term, 2 preterm, 1 first trimester spontaneous abortion, 3 living children
G4P1-2-1-3
“Soccer mommy” is pregnant and has three girls. She has been pregnant six times before – one elective abortion, 1 ectopic pregnancy at 9 weeks, 2 single baby deliveries at 39 weeks, one delivery at 32 weeks and another child delivered at 29 weeks who was stillborn.
G7P2-2-2-3
How to document reproductive history using the GPA system
G: # of pregnancies
P: pregnancies reaching viability (20 weeks)
A: pregnancies NOT reaching viability (abortions)
Why is age of menarche important in the PMHx?
women who start their periods younger have increased estrogen exposure, therefore increased risk of cancer
What’s important to include when documenting GYN surgeries/proceures
Indication
What’s the definition of sexually active
sex within the last 3 months
Only method to protect against STI
condoms
Three types of delivery
- spontaneous vaginal delivery
- Cesarean section
- vaginal birth after cesarean
When to address infertility
Patient <35 years old: trying for >1 year
Patient >35 years old: trying for 6 months
What to ask about prevention/screening (3)
for each test:
- frequency
- outcome
- treatment
Breast exams: when do you start and how often do you do them?
Start: 21 years old
Frequency: every 1-3 years
3 positions of breast exam inspection
- arms at sides
- armes pressed at hips
- arms raised overhead
5 things to look for on inspection during breast exam
- asymmetry
- Dimpling
- Discoloration/rash
- Nipple retraction
- Nipple discharge
How to document a breast mass
include:
- distance from areola
- diameter of mass
- position on clock (ex: 1 o’clock)
What is “Breast self awareness”
replacement of traditionally recommended monthly breast self-exam
Women should understand the normal appearance/feel of breasts and be aware of personal high risk factors
Steps of the pelvic exam
- wet/warm the speculum
- gentle pressure at introidus
- insert speculum horizontally at 45 degrees
- slight downward pressure, go all the way back until you meet resistence
- Inspect vaginal walls, cervix
- perform pap test (sample from transitional zone)
- Speculum withdrawal
All the things you palpate during the normal bimanual exam
Cervix
Uterus
Adenexa
Size of a premenopausal ovary
1x2x3 cm
Size of a postmenopausal ovary
usually not palpable
Why would you do a rectovaginal bimanual exam?
Guiac
Retroverted/retroflexed uterus
Posterior mass suspicion
Most common imaging in OB/GYN
ultrasonography
abominal or transvaginal
Indications for ultrasonography
- diagnosis of pelvic masses
- evaluate postmenopausal bleeding
- pregnancy diagnosis
indications for hysterosalpingography
- fallopian tube patency
- endometrial polyps
- myoma
How does hysterosalpingography work?
contrast medium inserted through cervix, followed by fluoroscopic observations/film
Allows to see uterine cavity and fallopian tubes
How does sonohysterography work?
uterine cavity filled with saline, US used to view endometrial cavity
Indications for sonohysterography
Diagnosis of intrauterine abnormalities (ex: polyps)
What type of biopsy would you perform on the vulva? Why?
punch biopsy
Ind: Eval visible lesions, persistent pruritis, burning and pain
What type of biopsy would you perform on the vagina? Why?
pinch forceps biopsy
Ind: suspicious masses
What type of biopsy would you perform on the cervix? Why?
colposcopy (directed biopsy with forceps)
ind: eval abnormal pap results, chronic cervicitis
What type of biopsy would you perform on the endometrium? why?
Small diameter suction catheter
Ind: eval abnormal uterine bleeding
What is a colposcopy?
allows for illuminated, magnified view of the cervix via binocular microscope
When to do a colposcopy
To further eval abnormal PAP results. While you’re in there, you’ll:
- get biopsy
- endocervical curettage
Tx for abnormal colposcopy?
Loop Electrosurgical Excision Procedure (LEEP)
How does LEEP work?
uses low-voltage, high frequency alternating current that limits thermal damage, but at the same time has good hemostatic properties
What do you use LEEP for?
excision of cervical dysplasias and cone biopsies of the cervix
What is hysteroscopy and when do you use it?
visual exam of the uterine cavity through fiberoptic instrument (hysteroscopy)
Ind: visualize polyps, adhesions, myoma
How do we inflate the abdomen for laparoscopy?
Fill with CO2 through umbillicus
indications for laparoscopy
diagnostic and therapeutic
- uterine fibroids
- structural abnormalities of uterus
- endometriosis
- ovarian cysts
- adhesions
- sterilization
- hysterectomy
Indication for endometrial ablation
treat abnormal uterine bleeding
not considered sterilization
What is dilation and curettage?
dilation of the cervix followed by curettage (scraping) of the endometrium
indications for D&C?
diagnostic and therapeutic
- abnormal uterine bleeding
- incomplete abortion
- endometrial biopsy
Hysterectomy
surgical removal of the UTERUS
Total hysterectomy
removal of entire uterus (includes cervix)
Supracervical hysterectomy
removal of the uterine corpus only (cervix is left behind)
salpingo-oophorectomy
Salpingo: tubes
oophor: ovaries
May be bilateral or unilateral
May or may not be included in a hysterectomy (must ask)
How many pregnancies in the US are unintended?
45%
How many in the US use contraception?
77%
what percent of unintended pregnancies end in terminatino?
43%
4 things to take into account when considering contraceptive options
- risk factors/tolerability
- personal preferences
- medical history
- permanent sterilization regret
Why is it important to ask about previous birth control methods?
We want to know if it worked and what they liked/didn’t like about it. We don’t want to start them on a pill they wont take for whatever reason
Two most important things to keep in mind when choosing a method of contraception
- Risk factors
2. Reproductive desires (TIMING)
4 types of birth control
- Sterilization (surgical)
- Hormonal (pill, patch, injection, ring)
- Non-hormonal (iud, barrier)
- Post-coital
LARC
long acting reversible contraceptive
SARC
short acting reversible contraceptive
List the following from most to least effective: barrier methods hormonal methods natural methods no method sterilization intrauterine devices implants
sterilization implant intrauterine devices hormonal methods barrier methods natural methods no method
Most effective
sterilization Cu-IUD LNG-IUD implant DMPA injection
Effective
oOCPs
patch/ring
POPs
Least effective
Barrier methods
NFP
Most frequently used sterilization method in US
sterilization
When performing surgical sterilization, you counsel and document patient understanding of 3 things:
permanence
operative risks
chance of pregnancy
Describe vasectomy MOA
ligation of vas deference
prevents passage of sperm into ejeculate
10 weeks, postop from vasectomy, what do you gotta do?
confirmation by semen analysis
Describe bilateral tubal ligation MOA
permanent occlusion of the fallopian tubes by electrocautery, ring, or clip
prevents passage of the egg through the tubes
How does BTL affect woman’s risks?
decreased risk of ovarian cancer
if pregnancy does occur, increased risk of ectopic pregnancy
Failure rates of homonal birth control
<1-9% depending on type/method used
What forms does combination estrogen + progestin come in?
pills
patch
ring
What forms does progestin only birth control come in?
pills
injections
implants
intrauterine device
7 physiological effects of estrogen
- alters lipid metabolism
- potentiates Na and water retention
- increases renin substrate
- stimulates cP-450 system
- increases sex hormone-binding globulin
- decreases circulating androgens
- reduces antithrombin III
Contraindications for estrogen therapy
- Hx of clotting irregularities
- abnormal vaginal bleeding
- cerebral vascular disease
- pregnancy, or chance or pregnancy
- smokers >35 years
- uncontrolled HTN
- severe liver disease
- known or suspected breast malignancy
- migraine with aura (risk for stroke)
- multiple risk factors for CVD
Contraindications for progestin therapy
- known, suspected breast malignancy
- abnormal vaginal bleeding
- pregnancy, suspected pregnancy
- active thromboembolic disease (IF ACTIVE DVT TAKE THE PT OFF PROGESTIN)
- liver adenoma/malignancy
- migraine with aura
- vascular disease
combo oral contraception pills MOA:
suppression of GnRH releasing factors
- suppresses FSH, which reduces follicule maturation
- suppresses LH, which prevents ovulation
Role of progestin in MOA of combo oral contraception pills
Has MAJOR contraceptive effect
- prevents ovulation
- thickens the cervical mucous, which prevents sperm migration
- produces atrophic endometrium, which is less suitable for implantation
Role of estrogen in MOA of combo oral contraception pills
- potentiates the effects of progesterone and suppresses FSH
- added benefit: stabilizes the endometrium, which means LESS BREAK THROUGH BLEEDING
Monophasic oOCPs
- standard estrogen dose (30-35mg)
- “tradiational regimen”: 3 weeks of active pills followed by one placebo week
Triphasic oOCPs
- dosage of either estrogen or progestin varies weekly
- “mimics” normal cycle
- slightly less hormone exposure monthly
Who should have low estrogen dosage? (<20 mg)
perimenopausal women
smokers <35 years old
Extended regimen oOCPs
- 11 weeks of active pills followed by one placebo week
- 4 scheduled withdrawal bleeds per year
Vaginal ring MOA:
same as combo OCPs
S/E of vaginal rings
leukorrhea, vaginal discomfort
What to counsel patients on with vaginal rings:
One ring stays in for 3 weeks
Remove for 1 week withdrawal bleed
Rings lose effectiveness with heat, keep refrigerated
Only one right per package, keep a back up
Contraceptive patch MOA
same as OCPs and ring
Things to think about
decreased efficacy for women >198 lbs
potential for skin irritation
Directions for contraceptive patch
- place on e patch on skin for one week
- alternate patch locatino each week for 3 weeks
- one week “off” patch for withdrawal bleed
Indications for progestin only methods
- breastfeeding
- women >40
- patients with estrogen use contraindications
- patients with compliance issues (injection, IUDs, implants)
- reduces risk of endometrial cancer
Progestin only pill MOA
- thickens cervical mucous (prevents sperm migration)
- thins endometrium
- MAY inhibit ovulation
Most important thing about taking progestin only pills
MUST TAKE AT SAME TIME EVERY DAY
if >3 hours late, must use back up contraception
Progestin injections MOA
- thickens cervical mucous (prohibits sperm mobiliy)
- decidualization of the endometrial lining (poor implantation)
- blocks LH surge (prevents ovulation)
Method for progestin injections
- IM injection every 3 months (maintains contraception for 14 weeks)
Considerations for progestin injections
irregular bleeding after first injection
amenorrhea over time
SOME WOMEN WANT WITHDRAWAL BLEEDS TO ENSURE THEY’RE NOT PREGNANT, must check personal preferences!
Takes 6-12 months to return to normal cycle after discontinuation. Not good for women who want to get pregnant in the next year
S/E of progestin injection
lots.
WEIGHT GAIN (~10lbs)
Progestin implant MOA:
- thickening of the cervical mucous
- suppresses LH surge (inhibits ovulation)
How long does progestin implant last?
3 years
S/E of progestin implant
irregular bleeding, may achieve amenorrhea
Progestin only IUDs MOA
LNG-IUD
- foreign body effect causes inflammatory response
- thickens cervical mucous
- thins the endometrial lining
Copper IUD MOA:
- foreign body serile inflammatory effect
- spermicidal: inhibits sperm motility and reaction necessary for fertilization
Lifespan for copper IUD
10 years
CI for copper IUD
history of menorrhagia, dysmenorrhea
3 barrier methods
condoms
spermicides
diaphragm
Emergency contraception must be used how quickly?
within 72 hours
MOA of emergency contraception (Plan B pill)
delays/inhibits ovulation and prevents fertilization
Most effective form of emergency contraception
copper IUD
can be inserted up to 5 days after intercourse
What is vulvovaginitis?
disorders cauesed by infection, inflammation, or changes in the normal vaginal flora
3 most common organisms causing vaginal symptoms
BV
Trich
Candida
Name some less common causes of vaginal symptoms
atrophic vaginitis FB irritants/allergens Cervicitis STIs Vulvar dermatoses
Common vaginal presenting symptoms (patient usually comes in with >1)
Change in vaginal discharge (color, odor, volume) Pruritus Burning/discomfort Irritation Swelling Erythema Spotting Dyspareunia Dysuria
Name the three elements of the vulvovaginal ecosystem that work together to create the environment
Microflora
Host estrogen
Vaginal pH
What is the predominant bacteria in the vagina?
Lactobacilli
What is normal vaginal pH?
3.5-4.7
Disruptions in the vaginal ecosystem lead to…
vaginitis
Name some factors that affect the vaginal ecosystem
Abx FB (condom, tampons) Hormones (pregnancy, contraceptives, phases of menstrual cycle) Douches, Hygienic products Sex
Describe normal vaginal secretions
white/transparent
thick or thin
NO ODOR
What is physiologic leukorrhea?
the normal volume of vaginal discharge increases during pregnancy and mid-cycle
T/F: itching, pain, irritation, mucosal friability are sometimes normal vaginal symptoms depending on the situation
False
3 things to do in the evaluation of a patient with vaginal Sx
- History
- PE
- Test for BV, Candida, Trich….Move on to less common causes after ruling out these three
3 diagnostic tools for vulvovaginitis
Vaginal pH
Microscopy
Amine testing
How is vaginal pH tested
pH test strip applied to the vaginal wall
How is microscopy performed to Dx vulvovaginitis?
- Obtain swab of vaginal mucosa
- Apply secretions to 2 separate slides.
- Mix one slide with normal saline (NS wet prep)
Mix the other slide with 10% KOH (KOH wet prep) - Look at slides under the microscope for pathology
What do you do if you don’t have a microscope or microscopy is inconclusive
Culture
or
DNA amplification tests/NAAT
What’s the triple threat of vulvovaginitis?
BV, Trich, and Candidiasis often happen together
What is the most common cause of vaginitis?
BV: Bacterial Vaginosis (not an inflammatory condition… it’s a disturbance of the ecosystem rather than a true infection of tissues)
Etiology of bacterial vaginosis
a reduction in lactobacilli and an increase in pH….
leads to a polymicrobial infection (Gardnerella vaginalis is most prominent)
Risk factors for BV
Sexual activity
Douching
Cigarette smoking
Protective factors for BV
Condoms
Estrogen-containing OCP
Sequelae of BV
Preterm delivery
Risk factor for STI acquisition/transmission
S/S of BV
50% asymptomatic Vaginal malodor (Cardinal Sx) Abnormal discharge No true signs of inflammation On Exam: - NO erythema/edema - Thin, grey-white discharge - NO lesions/discharge on cervix
Dx of BV
3/4 of the Amsel Criteria