Endometriosis Flashcards
Endometriuoisis
Tissue similar to endometrium is found outside the uterus
Responds to hormones just like endometrial tissue
- Increase in glandular and vascular composition
- Bleeding causes irritation to surrounding tissues
- Development of fibrous scar tissue and adhesions
4 stages
- minimal: endometrial implants haven’t pread or attached to any particular areas. Period and digestion problems
- Mild: implants gat placed at deeper level on one site or there may be multiple sites with implants
- Moderate: endometrial tissues growth and spread beyond pelvic cavity. Edometriosis symptoms are visible
- Severe: deep implants, cysts and adhesions. Severe pain, infertility and chronic digestive issues
Incidence and causes
Incidence: 1/10 women ages 15-49
Causes
Retrograde movement of menstrual blood out into pelvic cavity
Others
-Genetics
-Immune system disorders (lack ability to recognize abnormal tissue growth)
-Metaplasia (cell changes into a different type of cell)
-Endometrial cell transport via blood or lymph to other body parts
Locations
Pelvic peritoneum Ovaries Fallopian (uterine) tubes / Oviducts Behind the uterus Uterine ligaments Recto-vaginal septum (connective tissue between the vagina and rectum) Bladder and urethra Intestines
Symptoms
Painful menstrual periods – dysmenorrhea Heavy bleeding during period -Fatigue Severe back pain during period Chronic pelvic pain Pain at ovulation or during sexual intercourse Painful bowel movements -Diarrhea or constipation Blood in stool or urine Fertility problems
Complications
what percent become infertile?
Depending on location Prevents ovulation Blocks or distorts oviducts May also damage sperm or egg Result: Infertility (30-40%)
Cancer risk?
No increased risk of ovarian cancer
Endometriosis-associated adenocarcinoma – rare type of cancer
Diagnosis
Pelvic exam
-Palpate for cysts or scars
Ultrasound (high frequency sound waves)
- Provides images of reproductive organs
- Identification of cysts (endometriomas)
MRI (magnetic field and radio waves)
-More detailed images (helps with surgical planning - size and location)
Laparoscopy confirmation (general anesthesia and laparoscope insertion)
-Location, size, biopsy (tissue sampling)
-Provides option for treatment
Removal of implants (endometrial patches)
Non surgical treatments: contraceptives, GnRH agonists/antagonists, Progestin, Aromatase inhibitors
Contraceptives
- Goal: lighter, shorter menstrual flow
- Reduces estrogen levels and prevents ovulation and endometrial growth
GnRH agonists and antagonists
- Goal: block ovarian hormone production to decrease estrogen and prevent menstruation
- Agonists – ultimately interfere with pulsatile release of GnRH after initial surge in LH and FSH (downregulation in pituitary gland) – mimic menopausal symptoms
- Antagonists – prevent signaling to ovaries to release estrogen
Progestin
- Goal: stop menstruation and subsequent growth of implants
- Constant low levels causes endometrial thinning and reduced implant growth
Aromatase inhibitors
- Enzyme that converts Testosterone to Estrogen is inhibited
- Decreases amount of estrogen