Gynaecology Flashcards
What is the efficacy of the Copper IUD for emergency contraception if inserted within 5 days of UPSI or ovulation ?
99.9%
What is the mechanism of action of the LNG-IUS?
Progestogenic effect = cervical mucus thickening (hence reducing sperm access) and endometrial suppression (hence preventing implantation)
Also general foreign body effect
> 75% of women with Mirena IUS continue to ovulate
What are the different brands of LNG-IUS licensed for use in the UK?
Mirena - 52mg LNG - licensed for 5 yrs - licensed for contraception, HMB & endometrial protection in HRT (licensed for 4 yrs for endometrial protection but FSRH supports the off-license use for 5 yrs for endometrial protection)
Other unlicensed benefits - dysmenorrhoea, endometriosis, symptomatic management of fibroids
Levosert - 52mg LNG - licensed for 6 yrs - licensed for contraception, HMB
Kyleena - 19.5mg LNG - licensed for 5 years - only licensed for contraception
Jaydess - 13.5mg LNG - licensed for 3 years - only licensed for contraception
What is the risk of perforation associated with IUD/IUS insertion?
1-2 in 1,000
6x higher if breast feeding
Slightly higher risk if < 36 wks postpartum
True or false - Cu-IUD has been linked to increased incidence of bacterial vaginosis?
TRUE
Indivuduals who suffer from recurrent BV may wish to switch contraception
Note - the association between LNG-IUS and BV is less clear
Both LNG-IUS and Cu-IUD may be assoicated with increased risk of recurrent vuvlovaginal candidiasis although the evidence is less clear.
What is the risk of expulsion associated with IUD/IUS
1 in 20
Risk is highest in the first 3 months
Slightly higher risk of menstrual cup user!
What is the ectopic pregnancy risk associated with IUD/IUS
Risk of ectopic pregnancy is lower than if not on any contraception but if pregnancy does occur while in-situ then risk between 18-50% of it being ectopic.
If viable intrauterine pregancy, IUD/IUS should be removed if possible to improve the risk of successful ongoing pregnancy
What are the UKMEC 4 criteria for Cu-IUD / LNG-IUS?
UKMEC 4 CRITERIA FOR BOTH COPPER & MIRENA COIL:
- Insertion with known pelvic TB, PID, purulent cervicitis, gonorrhoea or symptomatic chlamydia infection
- Insertion OR Continuation in post-partum or post-abortion sepsis
- Insertion with unexplained vaginal bleeding
- Insertion with cervical or endometrial cancer awaiting treatment (continuation is UKMEC 2 for both)
- Insertion OR continuation with gestational trophoblastic neoplasia with persistently elevated hcg levels
AN ADDITIONAL UKMEC FOR LNG-IUS ONLY IS:
- Current breast Ca
What are the UKMEC 3 criteria for for Cu-IUD / LNG-IUS ?
UKMEC 3 CRITERIA FOR BOTH COPPER & MIRENA COIL:
Insertion if
* Known long QT syndrome
* Post organ transplant with complications
* Asymptomatic chlamydia infection
* HIV with CD4 < 200
Continuation if
* pelvic TB
Insertion OR continuation if:
* Fibroids that distort the uterine cavity
* Gestational trophoblastic neoplasia with decreasing HCG levels
* Post radical trachelectomy
* Between 48 hrs - 4 wks post partum
LNG-IUS SPECIFIC:
- Continuation if develops IHD or stroke while in-situ
- Previous breast cancer
- insertion / continuation if severe / decompensated liver cirrhosis, hepatocellular carcinoma or adenoma
What are the recommendations for STI screening prior to intrauterine contraception insertion?
If known PID, purulent cervicitis, gonorrhoea or symptomatic chlamydia infection then insertion is UKMEC 4
If asymptomatic for STI, screen for chlamydia if risk factors (age < 25, new partner in the last 3 months or more than 1x partner in the past 12 months) screen for gonorrhoea depending on individual / local area prevalence.
DO NOT NEED TO DELAY INSERTION WHILE AWAITING STI RESULTS IF THE PT IS ASYMPTOMATIC
NO EVIDENCE FOR PROPHYLACTIC ABX TO COVER INSERTION WHILE AWAITING STI RESULTS
If someone develops PID after an intrauterine coil is already in place, when should removal be considered?
If no clinical improvement after 72 hrs of abx
What is the guidance on Copper and LNG intrauterine contraception in the approach to menopause?
A Cu-IUD inserted at age 40+ can be used as contraception until menopause achieved (1 yr after last period if >50 or 2 yrs after last period if <50)
A 52mg LNG-IUS inserted at age 45+ can be used as contraception until menopause achieved.
All contraception can be stopped at age 55 regardless if not amenorrheic as spont conception v unlikely
which methods of contraception are unaffected by and therefore safe to use alongside enzyme inducing medications?
Copper IUD
LNG-IUS
Depot injection
Barrier methods
How long after ullipristal acetate emergency contraception should progestogen-based medications / contraceptions be avoided?
5 days!
This includes starting POP, inserting implant or giving Depot medication
Patients should also be advised that taking progestogens in the days leading upto UA use may also reduce UA’s effectiveness at delaying ovulation.
What should women who have had UPSI in the 4th year of an implant being in-situ be advised?
That although the implant is only licensed for 3 years, the risk of pregnancy in the 4th year is extremely low.
EC is likely not required.
What is the relationship between progestogen implant and cancers of the reproductive organs
There is some evidence of a very small increased risk of breast Ca with current or recent hormonal contraception and breast cancer risk although absolute risk remains low
There is insufficient evidence to establish an association between implant use and ovarian, endometrial or cervical cancer.
For how many days after Implant insertion are additional contraception precautions required?
If inserted upto day 5 of a natural menstrual cycle or post-abortion or upto day 21 postpartum then no added precautions needed.
At any other time can quickstart if reasonably certain not pregnant - need extra precautions for 7 days
What treatment options can be considered in a women having ongoing problematic bleeding with the implant after the first few months?
Exclude pregnancy, STI, cervical cancer
Offer 3 month trial of COC or 5 days of mefanamic acid during bleeding
What are the failure rates of the depot injection in the first year of use with perfect use and typical use?
Perfect use 0.2%
Typical use 6%
True or false - the depot injection is a safe contraception in sickle cell disease and may reduce the severity of sickle cell crises?
TRUE!!
How frequently should women on DPMA injection be reviewed ?
Every 2 years - to consider bone mineral density risk and other pros/cons