Non-hormonal contraception - Barrier methods:
Condoms:
Diaphragm and cervical caps:
–
What does barrier methods protect against?
Each episode of sexual intercourse
It destroys the latex
The penis can go alongside it instead of in
They can be pushed up and fall out
Noisy
–
D - stretches from pubic bone to posterior fornix
C - fit over the cervix
3 hrs
Spermicide (E.g. Nonoxynol-9)
STIs
Non-hormonal contraception - Natural Methods:
What is coitus interruptus?
Fertility awareness:
What might the mother do for her baby after birth to delay the return of her menses?
Withdrawal of penis before ejaculation
Monitoring mucus and temperature for signs of ovulation
6 days before (life of a sperm)
2 days after (life of ovum)
Breastfeeding - lactational amenorrhoea - look up!
Non-hormonal contraception - Natural Methods:
High-technology natural methods:
- What do they do?
Use urine test sticks to measure hormones around ovulation
It learns the variability over time
It gives women the green/red light for unprotected intercourse
Intra-uterine contraceptive devices (IUCD):
2 types:
Copper coil
Mirena - Intra-uterine system (IUS)
Intra-uterine contraceptive devices (IUCD) - Copper Coil:
3cm plastic device with copper wire and trailing thread
Inhibits implantation and sperm migration
Immediately
5-10 yrs
Emergency contraception***
Intra-uterine contraceptive devices (IUCD) - Copper Coil:
Insertion:
What if the woman falls pregnant?
Side effects:
STD
A preg test - they should not be preg
Analgesia - may cause cramps -- Remove immediately to reduce the risk of miscarriage -- Increased pain and bleeding
Cramps and perforation
PID post-STI and insertion if they have a current STI
Intra-uterine contraceptive devices (IUCD) - Mirena:
What is it?
How does it prevent pregnancy?
Advantages:
Side effects:
- What to warn about in the first few wks?
A device that releases levonorgestrel
5 yrs
Reduced pain and bleeding, therefore, can be used for dysmenorrhoea and menorrhagia.
Spotting
Heavy bleeding
Combined Oral Contraception (COCP):
Mechanism:
Use:
Oestrogen - ethinylestradiol
Progesterone - norethisterone
Condoms for 7 days + checking not pregnant
Combined Oral Contraception (COCP):
Missing pills/severe diarrhoea:
- What should be done if they miss 1 pill (>24 hrs)?
Take it ASAP the next day
Forget there 1st but take the 2nd ASAP
Use condoms for 7 days (+ days of diarrhoea)
Offer emergency contraception if she has unprotected sex
Continue to next pack without a wk off
Take another
The advice in the packs themselves
Combined Oral Contraception (COCP):
Advantages:
Side effects which settle after 2-3 months:
- Most common side effect?
Oestrogenic effects:
Reduced pain, bleeding, PMS
Reduced risk of benign breast disease
Reduced risk of ovarian and endometrial cancer
Breakthrough bleeding, mainly spotting
Oestrogen:
Combined Oral Contraception (COCP):
Progetogenic effects:
Another main side effect?
Mood swings
Vaginal dryness
Sustained weight gain
HEADACHE** especially if migraines with aura
That is why you shouldn’t have COCP if you have a history of migraines
Combined Oral Contraception (COCP):
What does it increase the risk of?
Contraindications:
NO PILLS CHUM mneumonic
VTE
HTN and CVD - check BP every 6 months
Neoplasia PMH - breast/gynae
Obesity
Pressure - HTN or history of CVD Insulin deficient - DM Late in life Lactating - currently breastfeeding Smoking
Clotting - VTE PMH
Hydatidiform mole pMH
Undiagonosed PV bleeding
Migraine with aura
Combined Oral Contraception (COCP):
Drug interactions reducing COC effectiveness:
Interaction wtih anticonvulants
St. Johns Wart
Rifampicin
Progesterone only pill (POP):
3 examples of what they could contain? - N, L, D
Mechanism - 2
Norethisterone
Levonorgestrel
Desogestrel - +/- 12hrs
Thickens cervical mucus
Inhibition of ovulation
THINK OF SAME EFFECTS PROGESTERONE HAS IN PREGNANCY
Progesterone only pill (POP):
Use:
Side effects:
Why is this a good alternative to the COC pill?
Taken daily at the same time +/- 3 hrs
2 days of condom use
Take it ASAP Condom use for 2 days ---- Irregular periods and spotting Breast pain Headache Nausea Low mood Reduced libido Weight gain Acne
It has very few contraindications but does have a slightly higher failure rate
Non-oral hormonal contraceptives:
Name the different types? - 3
Depot injection
Implant
Patches and rings
Non-oral hormonal contraceptives - Depot injection:
Route?
How often?
How does it work?
Advantages:
- How does it affect periods?
Side effects:
IM - gluteal or deltoids
Every 12 wks
The contraceptive injection works by preventing the ovaries from releasing an egg each month. It also thickens the fluid around the cervix (opening to the uterus/womb). This helps to prevent the sperm from entering - Basically from PROGESTERONE.
Initially irregular bleeding but later mostly amenorrhoeic -- Weight gain Acne Osteoporosis - recovers when stopped 18 months
Non-oral hormonal contraceptives - Implant:
What is it?
Where is it placed?
Advantages:
Sub-dermal implant that releases etonogestrel, a progestogen
3 yrs
Decreased bleeding - can become amenorrhoeic
Long-acting and doesn’t carry the potential osteoporosis risk of Devo-Provera
Non-oral hormonal contraceptives - Patches and ring:
What is it?
How is it taken?
Side effects?
Combined hormonal contraception - same as COCP BUT NOT ORAL
Combined so both OESTROGEN & PROGESTERONE
3 wks in
1 wk out
Then replace
Breast pain
Breakthrough bleeding
Expensive
Sterilisation:
Option for men
Option for women
Vasectomy
Tubal ligation
Sterilisation - Vasectomy:
Risks?
How long does it take to be effective?
What is done to confirm it has been successful?
Sterilisation - Tubal Ligation:
Risks?
Can both V and TL be reversible?
Bleeding
Infection
Sperm granuloma
Chronic testicular pain
4-5 months
2 confirmatory semen analysis --- Bowel/bladder perforation Bleeding Infection Ectopic pregnancy
50% are reversible
Emergency Contraception:
Indications:
How many POP pills are missed before this is needed?
How many COC pills are missed in the first before this is needed?
1 missed POP
2 missed COC
Emergency Contraception:
Options:
What is given within 3 days?
Dose?
What is given within 5 days which is more effective?
Levonorgestrel 1.5 mg - SINGLE DOSE
Copper IUCD
Postpartum Contraception Advice:
How long postpartum should this be discussed?
How long does natural contraception last if
breastfeeding?
If not breastfeeding, how long after birth is contraception needed?
6 wks in the postpartum app with GP
6 months
3 wks