Week 2 pt 2 Flashcards
(63 cards)
1) ___% or less of all women during menstrual lives (not caused by pregnancy) have amenorrhea
2) What are the 2 kinds of amenorrhea?
1) 5%
2) Primary and Secondary
1) Define secondary amenorrhea
2) Define oligomenorrhea
1) Menstruating women without menstruation for 3 months in individuals with hx of regular cycles or for 6 months in those with irregular cycles.
2) Bleeding occurring less frequently than every 35 days (>35days)
Menstruation ceases due to one of what 2 things?
1) Disrupted endocrine function along HPO axis or
2) Abnormality in genital outflow tract
What are 4 causes of amenorrhea?
1) Pregnancy (most common)
2) HP dysfunction
3) Ovarian dysfunction
4) Alteration in genital outflow tract
What are some Sx of pregnancy?
Breast fullness, weight gain, nausea, absent menses
1) Define Hypothalamic-pituitary (HP) dysfunction
2) What occurs with this?
3) What does this ultimately lead to?
1) Disruption or alteration of pulsatile GnRH secretion
2) Anterior pituitary gland not stimulated to secrete LH & FSH > Lack of folliculogenesis, no ovulation, & no corpus luteum
3) Leads to lack of increased sex hormone production & minimal endometrial proliferation > no menstruation
Hypothalamic-pituitary (HP) dysfunction: What are the causes of this?
1) Altered catecholamine (dop, epi, norepi) secretion & sex steroid hormone feedback
2) OR alteration of blood flow through HP portal plexus (i.e., tumor)
1) Define Primary ovarian insufficiency
2) What are some causes of this?
1) Follicles are exhausted or low in number
2) Chromosomal causes: Turner syndrome, X chromosome long arm deletion
Other causes: Savage syndrome, premature menopause, autoimmune ovarian failure
How can alteration of the genital outflow tract cause amenorrhea?
Obstruction prevents menstrual bleeding (if ovulation occurs)
Asherman syndrome:
1) What is it? What can it cause?
2) How do you Tx it?
1) Scarring of uterine cavity; amenorrhea
2) Most cases corrected with surgical lysis of adhesions
-Severe cases often refractory & require estrogen postoperatively to stimulate endometrial regeneration
-Balloon or IUD for some cases to prevent further adhesions (keeps the uterine walls separated)
What medical Hx should you take for amenorrhea?
Past illnesses
FHx of delayed puberty
LMP
h/o amenorrhea
Exercise amount (per day & week)
Dietary (restrictions, special diets)
Eating disorders
Medications
Illicit drug use
Psychiatric Hx
Other conditions
What should amenorrhea PE include?
-Tanner staging
-Breast development or no?
-Other stages of puberty met?
-Genital tract anatomy
-Uterus present?
-Hirsutism or acne (or both)
-BMI measurement
-Careful genital exam
1) What imaging can be done for amenorrhea?
2) What lab studies can be done for it?
1) Imaging with US, MRI, CT
2) Pregnancy (hCG), TSH, PRL, Estradiol, FSH
How do you Tx amenorrhea? Give examples
Correct the underlying pathology (if possible)
-Ex. Treat pituitary adenoma: hyperprolactinemia causing amenorrhea & galactorrhea
-Ex. Treat underlying cause of hypothyroidism with thyroxine replacement
-Ex. Oligo-ovulatory/anovulatory with PCOS: clomid (clomiphene citrate) to induce ovulation
-Ex. Hypogonadotrophic hypogonadism, induce ovulation with pulsatile GnRH
What are the goals of amenorrhea Tx? Give an example
Help the woman to achieve fertility (if desired)
Prevent of complications of the disease process
-Ex. estrogen replacement to prevent osteoporosis
Abnormal Uterine Bleeding (AUB):
1) Define Abnormal Uterine Bleeding (AUB)
2) Define Anovulatory Uterine Bleeding (AUB)
3) Give examples of Anovulatory Uterine Bleeding (AUB)
1) Abnormal uterine bleeding: vaginal bleeding not regular, not predictable, and not associated with premenstrual signs and symptoms that usually accompany ovulatory cycles.
2) Irregular bleeding that is associated with anovulation and unrelated to anatomic lesions of the uterus
3) PCOS, exogenous obesity, or adrenal hyperplasia
List and describe 2 etiologies of AUB (abnormal uterine bleeding)
1) Amenorrhea due to HP dysfunction with no genital tract obstruction: estrogen deficiency > no bleeding
2) Oligo-ovulation and anovulation with AUB: constant, noncyclic blood estrogen concentrations slowly stimulate the growth and development of endometrium
-Progesterone-induced changes do not occur > amenorrhea leads to intermittent sloughing over time
List and define 3 causes of abnormal uterine bleeding (AUB)
1) Ovulatory dysfunction (most common cause overall):
Relative estrogen deficiency due to HP dysfunction if no genital tract obstruction
2) Other nonstructural causes: Coagulopathy, endometrial factors (i.e. endometriosis), iatrogenic (breakthrough bleeding on hormonal contraceptives)
3) Structural Causes: Cervical or endometrial polyps,
Adenomyosis, Leiomyoma (uterine fibroid), Uterine or cervical cancer
How do you Dx AUB?
- Always rule out early pregnancy & its complications
- Exclude anatomic causes
Pelvic exam (including speculum) +/- pelvic u/s to eliminate other sources
What labs can you use in the Dx of AUB?
1) hCG testing, CBC, TSH, cervical cancer screening, +/- STI testing (if high risk)
2) Basal body temperature chart or ovulation predictor kit also options
List and describe 2 diagnostics for AUB
1) TVUS: Can evaluate endometrial stripe (thickness) to evaluate for endometrial proliferation (can lead to endometrial cancer)
Normal: during menstruation 2-4mm
2) Endometrial biopsy: Do if anovulatory with abnormal bleeding; concern regarding endometrial hyperplasia
Define the following AUB terms:
1) Polymenorrhea
2) Menorrhagia
3) Metrorrhagia
4) Menometrorrhagia
5) Dysfunctional uterine bleeding
1) Abnormally freq. menses at intervals of less than 24 days
2) Aka hypermenorrhea; excessive and/ or prolonged menses (>80mL + >7 days) occurring at normal intervals
3) Irregular episodes of uterine bleeding
4) Heavy and irregular uterine bleeding
5) Bleeding caused by ovulatory dysfunction
Heavy menstrual bleeding (menorrhagia):
1) How common is it in healthy women of reproductive age?
2) It’s the reason for up to ____% outpatient clinic visits by women
1) Occurs in up to 14%
2) 20%
Acute AUB: How do you assess this?
1) Assess for hemodynamic stability (vitals), anemia, & pregnancy
2) Obtain description of current bleeding episode and recent & usual bleeding patterns
3) Complete history can help suggest PALM-COEIN categories
4) Rule out obvious causes requiring immediate surgery (trauma, lacerations, etc.)
5) Prompt control and organic pathology ruled out
6) Imaging usually delayed until bleeding controlled & patient is hemodynamically stable
-May need sooner for other symptoms (i.e., significant pain)