Chronic pelvic pain/endometriosis Flashcards
Define endometriosis:
The presence of tissue similar to endometrium, outside of the uterus.
Who does endometriosis typically affect?
30-45yo
Nulliparous
1-2% of women
When does endometriosis typically regress and why?
After menopause and in pregnancy.
It is oestrogen dependent
Give 2 common places for endometriosis to exist:
Uterosacral ligament
Behind the ovaries (pelvis side wall)
Give two pathologies associated with/due to endometriosis which could be picked up on USS:
Chocolate cysts (endometrioma)
‘Frozen pelvis’ - endometriosis driven inflammation -> progressive fibrosis + adhesions
What is the thought aetiology of endometriosis?
Retrograde menstruation
Give 5 features of endometriosis:
- Chronic pelvic pain -> cyclical
- Dysmenorrhoea before onset of menstruation
- Deep dyspareunia
- Sub-fertility
- Dyschezia (pain on passing stool) during menses
Give 3 DD of endometriosis:
- Adenomyosis (endometriosis interna)
- CPID (chronic pelvic inflammatory disease
- Chronic pelvic pain
Give 4 investigations which can be performed in the case of suspected endometriosis:
1) Physical examination:
- Vagina: tednerness and thickening behind uterus
- Uterus can be retroverted and immobile (adhesions)
2) Laparoscopy:
- Diagnosis only made after visualisation and biopsy
- active lesions appear as red dots, large raides red vesicles
- Less active - black powder-burn dots
- severe disease: ovarian endometriomas + ^^adhesions
3) Transvaginal USS:
- to exclude ovarian endometriomas
- adenomyosis detection (endometriosis inside myometrium) (MRI better however)
4) MRI +/- intravenous pyelogram (IVP):
- used to detect even peritoneal endometriosis, ureteric, bladder and bowel involvement.
- CA 125 sometimes elevated
Give 4 SE of progestogens:
- Fluid retention
- Weight Gain
- Erratic bleeding
- Premenstrual syndrome-like features
What is an intravenous pyelogram (IVP)?
X-ray examination of kidneys, ureters and bladder which used iodinated contrast media which is injected into the veins
What is the medical Rx of endometriosis?
Choose one of the following:
- Analgesia
- COCs
- GnrRH-analogues (down regulates GnRH receptors) + add-back HRT (to maintain bone mineral density)
- IUS - progesterone IUS helps with dysmenorrhoea
What is the issue with medical treatment of endometriosis?
That once medical treatment ends, endometriosis usually recurs.
What are the surgical Rx for endometriosis?
- Laparoscopic laser ablation +/- adhesiolysis
- Hysterectomy +/- BSO -> +HRT if ovaries removed
How does endometriosis relate to fertility?
Severity correlated with sub-fertility.