+ contraceptive methods alison pittman pgy2 family medicine civic family health team
TRANSCRIPT
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+
Contraceptive MethodsAlison PittmanPGY2 Family MedicineCivic Family Health Team
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+Outline
Introduction
Choosing a Method of Contraception
Natural Methods
Non-Hormonal Methods
Hormonal Methods
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+Contraception
Patients often have questions about contraception but aren’t sure which type they want
Some reasons why patients will ask about contraception: Control over timing of pregnancy Avoidance of unintended pregnancy Protection from STI infection Noncontraceptive health benefits (hormonal options)
Discuss all forms with patients to find which method will fit their needs
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+Choosing a Method Convenience
Duration
Reversibility
Efficacy
Cost
Side effects
Accessibility
STI protection
Effect on uterine bleeding
Noncontraceptive benefits
Contraindications
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+Natural Methods
Abstinence
Fertility Awareness/Natural Family Planning
Rhythm (Calendar) Method
Withdrawal
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+Non-Hormonal Methods
Surgery Tubal Ligation Vasectomy
Barriers Male Condom
Intrauterine Contraceptive Device (Copper IUD)
Others Spermicide Contraceptive sponge Lea contraceptive Cervical Cap Diaphragm
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+Copper IUD
T-shaped device with copper wire that is inserted into the uterus
Changes intrauterine chemistry, prevents fertilization and destroys sperm
EfficacyFails in <1 in 100 users per year
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+Copper IUD
Benefits:
Up to 5 years of contraception
No need to remember pills
Can use while breast feeding
No hormone exposure
Decreased risk of endometrial ca
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+Copper IUD
Relative Contraindications High risk for STIs Immunocompromised Ovarian cancer
Absolute Contraindications Pregnancy Current or recent PID or
STI Distorted uterine cavity Unexplained vaginal
bleeding Cervical or endometrial
cancer Copper allergy
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+Copper IUD
Side effects
Increased bleeding
Dysmenorrhea
Risks
Uterine perforation
Infection
Expulsion
Failure
Risk of ectopic pregnancy
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+Copper IUD
Who could benefit?Postpartum and breastfeeding
Hormone concernsDifficulty remembering pills
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+Hormonal Methods
Combined oral contraceptive
Contraceptive patch
Vaginal ring
Progestin-only oral
contraceptive
Injection
Hormonal IUD
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+Combined Oral Contraceptive Pills
Combined OCPs contain estrogen and progestin
Multiple mechanisms of action
Efficacy99.9% with perfect useUser failure rates 3-8%
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+OCP – Non-Contraceptive Benefits Cycle regulation
menstrual flow
BMD
dysmenorrhea
perimenopausal symptoms
acne
hirsutism
ovarian cancer
endometrial cancer
risk of fibroids
Fewer ovarian cysts
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+OCP – Absolute contraindications
Pregnancy <6 weeks postpartum (if
breastfeeding) Smokers >35y/o (>15
cig/day) Hypertension (>160/100) History of VTE IHD Previous CVA Valvular heart disease
Migraine headache with neurologic symptoms
Breast cancer (current) Severe cirrhosis Liver tumour
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+OCP – Relative Contraindications
Smokers >35y/o (<15 cig/day)
Controlled hypertension
Migraines >35y/o
Symptomatic gallbladder disease
Mild cirrhosis
Contraindicated medications
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+OCP – Side Effects and Risks
Side Effects
Irregular bleeding
Breast tenderness
Nausea
Weight gain
Mood changes
RisksVTEMICVAGallbladder diseaseBreast cancerCervical cancer
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+OCP - Disadvantages
Compliance issues
No STI protection
Effectiveness may be affected by other medications
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+OCP – Who could benefit?
Irregular cycles
Heavy bleeding
Dysmenorrhea
Acne
Otherwise healthy
Good compliance
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+Contraceptive Patch
Transdermal patch that
continuously releases estrogen
and progestin into the bloodstream
Each patch is worn for 7 days.
Week 4 is patch-free
99.7% effectiveness with perfect
use
91% effectiveness with typical use
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+Contraceptive Patch
Advantages Improved adherence Serum hormone levels
remain in contraceptive range for up to 9 days
Reversible
Disadvantages Not as effective >90kg Possible skin irritation
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+Vaginal Ring
Flexible, transparent ring placed
in the vagina that delivers
estrogen and progestin over a 3
week period
99.7% effective with perfect use
91% effective with typical use
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+Vaginal Ring
AdvantagesConvenientComplianceReversible
DisadvantagesVaginal irritationBreakthrough
bleeding
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+Patch and Ring
Who could benefit?
Difficulty
remembering pills
No contraindications
Not interested in IUD
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+Progestin-only oral contraceptive
Daily pill that does not contain any estrogen, just progestin
Thickens cervical mucous and changes the lining of the uterus, affecting implantation
40% of women continue to ovulate
99.5% effective with perfect use
90-95% effective with typical use
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+Progestin-only oral contraceptive
Absolute contraindications
Pregnancy
Current breast cancer
Relative contraindications
Active viral hepatitis
Liver tumours
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+Progestin-only oral contraceptive
Non-contraceptive benefits May decrease menstrual flow May decrease menstrual
cramping and PMS
Advantages Use in women who can’t take
estrogen Women >35 who smoke Breastfeeding
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+Progestin-only oral contraceptive
Side effects
Irregular bleeding
Hormonal side effects
Headache/bloating/acne/breast tenderness
Disadvantages
Must be taken at the same time every day
No STI protection
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+Injection
Injectable progestin (Depo-Provera) inhibits secretion of pituitary gonadotropins, suppressing ovulation
99.7% effective
Absolute contraindications Pregnancy Current breast cancer
Relative contraindications Severe cirrhosis Active viral hepatitis Benign hepatic adenoma
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+Injection
Non-contraceptive benefits Amenorrhea (in 50%) with decreased dysmenorrhea Decreased risk of endometrial cancer, endometriosis
symptoms, PMS, chronic pelvic pain
Advantages Injection only needed every 12-13 weeks Can be used while breastfeeding
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+Injection
Side effects Weight gain Mood effects Hormonal side effects
Risks Delayed return to
fertility ~9 months
Decreased BMD VTE; CAD; CVA
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+Hormonal IUD
Intrauterine small T-shaped frame with levonorgestrel
No estrogen
Slowly releases hormone
Endometrial decidualization, glandular atrophy, thickened cervical mucous
99.9% effective
5 years (Mirena) or 3 years (Jaydess)
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+Hormonal IUD
Side effects Reduction in menstrual blood loss More bleeding soon after insertion,
which decreases Some hormonal effects
Depression, acne, headache, tenderness
Functional ovarian cysts
Advantages Effective Compliance
Disadvantages Requires trained clinician for insertion
and removal
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+In conclusion…
There are many contraceptive options available to our patients
Take a patient’s health, lifestyle, cultural beliefs and compliance habits into account when discussing their options
Be familiar with side effects and contraindications
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+Questions?
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+References
The Society of Obstetricians and Gynaecologists of Canada (SOGC) (2012) Birth Control http://www.sexualityandu.ca/
Association of Reproductive Health Professionals ( June 2014) Choosing a Birth Control Method https://www.arhp.org/publications-and-resources/quick-reference-guide-for-clinicians/choosing
Black, A., Francoeur, D., Rowe, T. et al. (2004) Canadian Contraception Consensus. JOGC, Volume 143 (part 1 of 3; February 2004) 143 - 156
Black, A., Francoeur, D., Rowe, T. et al. (2004) Canadian Contraception Consensus. JOGC, Volume 143 (part 2 of 3; March 2004) 219 – 254
Trussell, J., Wynn, L. Reducing unintended pregnancy in the United States. Contraception. 2008;77(1):1
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+Tubal Ligation
Surgical disconnection of the fallopian tubes
Considered permanent Reversal is costly, difficult, and not guaranteed
Benefits Most effective method for women Can be done at same time of c-section
Risks Surgical risk Ectopic pregnancy more likely No STI protection
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+Vasectomy
Surgical disconnection of the vas deferens Prevents sperm from entering the
ejaculate
Benefits Most effective male method
Risks Surgical risks Possible sperm in ejaculate for up to 3
months No STI protection
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+Male Condom
97% effective When used properly and
consistently
Benefits Cheap Easy to use Some STI protection
Disadvantages Latex allergies Breakage/slip off Poor use technique