adolescents and long-acting reversible contraception (larc) a clinical update
TRANSCRIPT
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Adolescents and Long-Acting Reversible Contraception (LARC)
A Clinical Update
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The information contained in this slide set is designed to aid
practitioners in making decisions about appropriate obstetric
and gynecologic care. This information should not be construed
as dictating an exclusive course of treatment or procedure.
Variations in practice may be warranted based on the needs of
the individual patient, resources, and limitations unique to the
institution or type of practice.
© 2013 by the American College of Obstetricians and Gynecologists, 409 12th Street SW, PO Box 96920, Washington, DC 20090-6920. Individuals and groups providing patient care or clinical education in family planning have permission to copy all or any portion of this slide set for noncommercial, educational purposes, provided that no modifications are made and proper attribution is given.
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Learning Objectives
At the end of this session, the participant will be able to:
• Describe the potential role of LARC methods in reducing unintended pregnancy rates among adolescents.
• Provide appropriate counseling to adolescents about LARC methods.
• Address common misconceptions on LARC use by adolescents.
• List and compare the clinical effects and characteristics of LARC methods
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Adolescent Unintended Pregnancy
82%Unintended
1/5 of all unintended pregnancies in the U.S.
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Sexual Behavior and Contraceptive Use by Adolescents
• In the U.S., 42% of adolescents aged 15-19 years have had sexual intercourse
• Most sexually-active teens report using some form of contraception– Usually methods with relatively high typical-use
failure rates such as condoms, withdrawal, or OCs
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IUD
Other methods
Other hormonal methods
Male condom
OC
2.7%
7.6%
16.1%
20.0%
53.2%
Adolescent Contraceptive Use
% of all contracepting U.S. women ages 15-19 by
method type
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Increased use of LARC*has the potential to lower unintended
pregnancy rates among adolescents
*LARC = Long-Acting Reversible Contraception
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College Recommendations
• IUDs and the contraceptive implant are the best reversible methods for preventing unintended pregnancy, rapid repeat pregnancy, and abortion in young women
• LARC methods should be first-line recommendations for all women and adolescents
American College of Obstetricians and Gynecologists. Committee Opinion No. 539, “Adolescents and Long-Acting Reversible Contraception: Implants and Intrauterine Devices,” October 2012.
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College Recommendations
• Counseling about LARC methods should occur at all health care provider visits with sexually active adolescents
• Health care providers should consider LARC methods for all adolescents and help make these methods accessible to them
American College of Obstetricians and Gynecologists. Committee Opinion No. 539, “Adolescents and Long-Acting Reversible Contraception: Implants and Intrauterine Devices,” October 2012.
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Counseling Adolescents about LARC
• Adolescents should be encouraged to consider LARC
methods– Less than 1% failure rate
– High rates of satisfaction AND continuation
– No need for daily adherence
• Advise consistent condom use
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Confidentiality and Consent
• Confidentiality is of particular importance to adolescents
• In many states, adolescents have the right to receive confidential contraceptive services without parental consent
• Information regarding laws: http://www.guttmacher.org/statecenter/adolescents.html
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• LARC methods should be first-line recommendations for all women and adolescents
• Increased use may decrease unintended pregnancy rates
LARC for Adolescents Summary
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Adolescents and LARC
Intrauterine Contraception
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Copper IUD • ParaGard® polyethylene wrapped with
copper wire
• Approved for use up to 10 years
• Mechanisms of action: Inhibition of sperm migration and
viability Change in ovum transport speed Damage to or destruction of ovum Damage to or destruction of
fertilized ovum All effects occur before implantation
• Highly effective
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LNG IUS
• Mirena® LNG IUS releases 20 mcg levonorgestrel/day
• Approved for use up to 5 years
• Mechanisms of action: Similar effects as copper IUD Also causes endometrial suppression
and changes in cervical mucus All effects occur before implantation
• Highly effective
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New LNG IUS
• Skyla™ LNG IUS releases 6 mcg levonorgestrel/day
• Approved for use up to 3 years
• Highly effective
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Insertion
• Little evidence to suggest that IUD insertion is more technically difficult in adolescents
• More than one half of nulliparous women will report discomfort with placement
• Provide anticipatory guidance regarding pain before insertion
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Analgesia Options for IUD Insertion
• Most effective method of pain control has not yet been established
• Individualize pain management
– Supportive Care
– NSAIDS
– Narcotics
– Anxiolytics
– Paracervical block
Misoprostol does not appear to reduce insertion pain, and adverse effects are common
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Insertion Timing
• Any time during the menstrual cycle
• Reasonably exclude pregnancy
• No major advantage to insertion during menses
• Difficult insertions are rare
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Complications are Uncommon
• Expulsion rate: 5–22% among adolescents
• Perforation: 1 per 1,000 insertions or fewer
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Backup Contraception
• Not needed at any time after Copper IUD insertion
• Needed for 7 days unless LNG IUS inserted:
– Within 5 days of menses
– Immediately postpartum or post-abortion
– Immediately upon switching from another hormonal method
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STI Screening
• All adolescents should be screened for STIs at the time of or before IUD insertion
• It is reasonable to screen for STIs and place the IUD on the same day
• Treat with IUD in place if results are positive
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Insertion Protocols
• Treat mucopurulent discharge or known STI before insertion
• Routine antibiotic prophylaxis is not recommended before insertion
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IUDs Do Not Cause PIDRate of PID by Duration of IUD Use
<21 days of use 21 days-8 years of use0
100
200
300
400
500
600
700
800
900
1000
9.25 1.6
Rate per 1,000 women
n=20,000
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IUDs Do Not Cause Infertility
• Infertility is not more likely after IUD discontinuation compared to other reversible methods
• No evidence that IUD use is associated with subsequent infertility
• Chlamydia, not previous IUD use, is associated with infertility
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Menstrual Effects: Copper IUD
• Initial increased bleeding and cramping
– Treat with NSAIDs
• Decreases over time
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Menstrual Effects: LNG IUS
• Bleeding duration and amount decreases initially and over time
• 70% experience oligomenorrhea or amenorrhea within 2 years of insertion
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Managing Bleeding Concerns
• Provide anticipatory guidance
• Evaluation of abnormal bleeding similar to non-IUD users
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LNG IUS as Treatment for Heavy Bleeding
• Menstrual blood loss reduction: 79–97%
• High rates of patient satisfaction and continuation
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Postpartum LARC Initiation
• Adolescent mothers are at high risk for rapid repeat pregnancy
• 20% will give birth again within 2 years
• Particularly favorable time for LARC initiation:– High motivation– Known pregnancy status– Already engaged with the healthcare system
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Immediate Postpartum Insertion
• Appears safe and effective
• Within 10 minutes of placental separation
• Cut strings 1–2 weeks after insertion
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Expulsion Rates
• Higher with immediate postpartum insertion (up to 24%)
–May be lower after Cesarean delivery
– Benefits may outweigh risk of expulsion
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Breastfeeding
• Copper IUD has no effect on breastfeeding
• Hormonal content of LNG IUS raises theoretic concern
• No difference found in breastfeeding duration or infant growth between Copper IUD and LNG IUS users
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Post-Abortion Insertion
• Insertion of an IUD immediately after abortion or miscarriage is safe and effective
– Significantly reduces the risk of repeat abortion
– Increases rates of use
– Adolescents should be counseled regarding risk of expulsion
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Copper IUD as EC
• Most effective method of emergency contraception
• Can be inserted up to 5 days after unprotected intercourse to prevent pregnancy
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Ectopic Pregnancy
• IUDs may be offered to women with a history of ectopic pregnancy
• IUD use does not appear to increase absolute risk
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Pregnancy with IUD In Situ
• The FDA and WHO recommend removal when possible without an invasive procedure
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Intrauterine Contraception Summary
• Adolescents should be offered IUDs as first-line options
• Clinicians should provide anticipatory guidance to patients regarding bleeding patterns
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Adolescents and LARC
The Single-Rod Contraceptive Implant
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• Most effective method of reversible contraception
• Etonogestrel (68 mg)
• Discreet
• Rapidly reversible
• Approved for use up to 3 years
The Single-Rod Contraceptive Implant
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Short Insertion and Removal Time
Insertion
< 1 minute
Removal
< 3 minutes
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Insertion Timing
• Any time during the menstrual cycle
• Reasonably exclude pregnancy
• Backup method for 7 days unless inserted:- Within 5 days of menses- Immediately postpartum or post-abortion- Immediately upon switching from another
hormonal method
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Bleeding Patterns with Implant First 2 Years
Infrequent
Amenorrhea
Prolonged
Frequent
33.3%
21.4%
16.9%
6.1% Percentage of 90– day intervals
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Mean Bleeding/Spotting Days
No spotting or bleeding
Spotting
Bleeding
72.3 days
10.4 days
7.3 days
Per 90 day reference period
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Managing Bleeding Concerns
• Common strategies include short courses of combined OCs or NSAIDs – No published placebo controlled trials to support use of
these treatments
• Limited data suggest decreases in bleeding episode length with:– Mefenamic acid – Mifepristone in combination with ethinyl estradiol or
doxycycline – Doxycycline alone
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Bleeding Patterns Summary
• Provide anticipatory guidance
• Favorable bleeding patterns experienced in the first 3 months are likely to continue
• Unfavorable patterns have a 50% chance of improving
• Women with low body weight have fewer bleeding and spotting days
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Weight Gain
• 6–12% of users report weight gain
• Only 2.3% discontinue due to weight gain
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Non-Contraceptive Benefit: Dysmenorrhea Improvement
Increased
No change
Improved/Resolved
5%
14%
81%
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Postpartum LARC Initiation
• Adolescent mothers are at high risk for rapid repeat pregnancy
• 20% will give birth again within 2 years
• Particularly favorable time for LARC initiation:– High motivation– Known pregnancy status– Already engaged with the healthcare system
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Postpartum Implant Insertion
• Safe at any time after childbirth for women who are not breastfeeding
• Theoretic concerns regarding milk production and infant growth and development
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Post-Abortion Implant Insertion
• The implant is safe to place after any abortion, including second-trimester or septic abortion
• Significantly reduces the risk of repeat abortion
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• The most effective reversible contraceptive
• Short insertion and removal time
• Provide anticipatory guidance regarding bleeding patterns
Implant Summary
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LARC for Adolescents Summary
• Encourage as first-line options
• Highly effective
• Highest continuation and satisfaction rates
• Increased use may reduce unintended pregnancy rates
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LARC Practice Resources
www.acog.org/goto/larc