Uterus Flashcards
Dysfunctional Uterine Bleeding (DUB) Definition
ABN bleeding w/o evidence of underlying cause
Post-menopausal bleeding is cancer until proven otherwise
:)
Oligomenorrhea
Increased length of time between menses (35-90 days)
Polymenorrhea
Frequent menstruation (<21 d cycle), anovulatory
Menorrhagia
Increased amount of flow (>80mL) or prolonged bleeding (>8 days) –> may lead to anemia
Metorrhagia
Bleeding between periods
Menometorrhagia
Excessive bleeding at irregular intervals
DUB Exam: look for…
palpable uterus, cervical mass, polyps to assess for cervical cancer, myoma or pregnancy
DUB Diagnostic labs
BhCG to R/O pregnancy
CBC: r/o anemia
Thyroid function tests
Platelets/PT/PTT: r/o Von Willebrands disease, Factor XI deficiency
DUB Diagnostic procedures
Pap: r/o cervical CA
US: polycystic ovaries, uterine mass, endometrial thickness
DUB Endometrial Biopsy is indicated WHEN
Endometrium is >4mm in a POSTMENOPAUSAL women
OR
Pt is >35 yo w/ RF of endometrial hyperplasia (obesity, diabetes)
Pregnancy is the most common cause of ABN uterine bleeding
:)
TX of heavy bleeding
High-dose estrogen IV - stabilizes uterine lining, controls bleeding w/in one hour.
D/C indicated if bleeding not controlled w/in 24 hours
TX of ovulatory bleeding
NSAIDs to decrease blood loss
If hemodynamically unstable, OCPs or Mirena IUD
Anemia and endometrial hyperplasia are the main complications of DUB
:)
TX of anovulatory bleeding
goal is to convert proliferative endometrium into secretory endometrium (decr. risk of hyperplasia and CA)
Progestin x10d –> stimulates withdrawal bleeding
Desmopressin –> increases Von WIllebrand and FactorVIII
OCP or Mirena
Surgical TX of DUB
D&C
Hysteroscopy: direct visualization of endometrium for biopsy
DUB Hysterectomy IF
Fail or do not want hormone treatment,
Symptomatic anemia or decreased QOL
Type 1 endometrial CA is derived from
atypical endometrial hyperplasia
Type 2 endometrial CA is derived from
serous or clear cell histology
Type 1 endometrial CA is the most common F reproductive CA
(%75)
Estrogen’s role in type 1 endometrial CA
High - from unopposed estrogen stimulation
Estrogen’s role in type 2 endometrial CA
Unrelated - mostly from p53 gene mutation
Precursor lesions - Type 1 endometrial CA
endometrial hyperplasia and atypical hyperplasia
Precursor lesions - Type 2 endometrial CA
None
Prognosis - Type 1 endometrial CA
favorable
Prognosis - Type 2 endometrial CA
poor - very agressive
Mean age Type 1 endometrial CA
55 yo
Mean age Type 2 endometrial CA
67 yo
Post-menopausal vaginal bleeding is an early PE finding of endometrial CA
:(
Abdominal pain is a late PE finding in endometrial CA
:(
DX of endometrial CA
endometrial/endocervical biopsy
U/S will show thickened endometrium
Child bearing age TX of endometrial CA
High dose progestin
TX of endometrial CA
total hysterectomy, bilateral salpingo-oophrectomy +/- radiation or chemotx
Definition of endometriosis
functional endometrial glands and stroma outside the uterus
HX/PE - endometriosis
cyclical pelvic pain and/or rectal pain, dyspareunia
classic lesions of endometriosis
dark brown or blue-black in color, “chocolate cysts” on ovaries (endometriomas)
DX of endometriosis
direct visualization with laparoscopy or laparotomy
TX (pharm) endometriosis
inhibit ovulation! Combo OCP - 1st line GnRH analogue NSAIDs Progestins
TX (surgery) of endometriosis
Excision, cauterization, cauterization, ablation of lesions and adhesions
TX (definitive) of endometriosis
Total hysterectomy - bilateral salpingo-oophrectomy +/- lysis of adhesions
Uterine fibroids are the most common benign OBGYN tumor
:)
Fibroids are…
discrete, round, firm and often multiple tumors made up of smooth muscle and connective tissue
Uterine fibroids are sensitive to these hormones
Estrogen and Progesterone - will grow in pregnancy and decrease in size at menopause
Malignant transformation of fibroids into leiomyosarcoma is RARE
:)
SSx of fibroids may include
Uterine bleeding Pelvic pressure bloating/constipation urinary frequency/retention firm, non-tender, "bumpy" uterus on pelvic exam
DX of fibroids
CBC (r/o anemia)
U/S (exclude ovarian mass)
MRI (delineate cell source of growth)
Pharm TX of fibroids
NSAIDs. Combo OCPs. Medroxyprogesterone acetate (DEPO) or danazol to slow/stop bleeding. GnRH analog to decrease size, growth and vasculature.
Surgical TX of fibroids
Emergency if torsion occurs
Child bearing age: myomectomy
Otherwise: hysterectomy
If a uterine mass continues to grow after menopause - suspect malignancy
:)
Uterine fibroid prevalence
25% Caucasian
50% African American
Uterine prolapse risk factors
vaginal birth, genetics, adv. age, Hx of pelvic surgery, CT disorders, increased intra-abdominal pressure secondary to obesity or straining
Prolapse HX/PE
sensation of bulge or protrusion in vagina
urinary or fecal incontinence
sense of incomplete bladder emptying
Dyspareunia
DX of uterine prolapse
Bare down in stirrups and visualize
Supportive TX - uterine prolapse
increased fiber diet, weight reduction, limit straining/lifting
Pessary if unable to or not interested in surgery
Surgical TX - Uterine prolapse
hysterectomy w/ vaginal vault suspension