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Sakurai S. Pregnancy rate after emergency contraception with single-dose oral levonorgestrel in Japanese women. J Obstet Gynaecol Res 2019; 45:1892-1898. [PMID: 31286635 PMCID: PMC6771957 DOI: 10.1111/jog.14049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 06/12/2019] [Indexed: 11/30/2022]
Abstract
Aim To evaluate the pregnancy rate in Japanese women treated with levonorgestrel for emergency contraception. Methods This retrospective record‐based medical study included 1000 women who visited our clinic for emergency contraceptive treatment with 1.5 mg single‐dose oral levonorgestrel, followed by 50 μg hormonal oral contraceptive from May 2011 to December 2017. The outcomes of the emergency contraceptive treatment were recorded at a follow‐up visit, and descriptive statistics were obtained. Results The number of women treated with levonorgestrel at the clinic increased from 2011 to 2015, but there was no subsequent increase thereafter. Most women were in their 20s (57.4%), followed by their 30s (19.3%) and teens (18.3%). Of the 1000 women treated with levonorgestrel, 659 were followed up. Among the 659 women with follow‐up data, 16 were pregnant (2.4%), of whom 11 underwent abortions, three had miscarriages, and two delivered at term. The timing of unprotected sexual intercourse relative to the estimated ovulation date among the pregnant women ranged from −3 to 23 days. The most commonly used contraceptive method before the emergency contraceptive visit was condoms (89.3%, 887/993). No new safety concerns were identified throughout the study period. Conclusion The pregnancy rate after levonorgestrel treatment in Japanese women was low, and similar to that reported in previous studies. Information on contraceptive methods and emergency contraception with levonorgestrel needs to be better disseminated among women of childbearing age.
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Contraception d’urgence. JOURNAL OF OBSTETRICS AND GYNAECOLOGY CANADA 2016; 38:S143-S152. [DOI: 10.1016/j.jogc.2016.09.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Abstract
Adolescents have high rates of unintended pregnancy and face unique reproductive health challenges. Providing confidential contraceptive services to adolescents is important in reducing the rate of unintended pregnancy. Long-acting contraception such as the intrauterine device and contraceptive implant are recommended as first-line contraceptives for adolescents because they are highly effective with few side effects. The use of barrier methods to prevent sexually transmitted infections should be encouraged. Adolescents have limited knowledge of reproductive health and contraceptive options, and their sources of information are often unreliable. Access to contraception is available through a variety of resources that continue to expand.
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Affiliation(s)
- Shandhini Raidoo
- Department of Obstetrics, Gynecology, and Women's Health, Kapiolani Medical Center for Women and Children, University of Hawaii John A. Burns School of Medicine, 1319 Punahou Street, Suite 824, Honolulu, HI 96826, USA.
| | - Bliss Kaneshiro
- Department of Obstetrics, Gynecology, and Women's Health, Kapiolani Medical Center for Women and Children, University of Hawaii John A. Burns School of Medicine, 1319 Punahou Street, Suite 824, Honolulu, HI 96826, USA
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Allen C, Evans G, Sutton EL. Pharmacologic Therapies in Women's Health: Contraception and Menopause Treatment. Med Clin North Am 2016; 100:763-89. [PMID: 27235614 DOI: 10.1016/j.mcna.2016.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Female hormones play a significant role in the etiology and treatment of many women's health conditions. This article focuses on the common uses of hormonal therapy. When prescribing estrogen-containing regimens throughout the span of a woman's life, the risks are similar (ie, cardiovascular risk and venous thromboembolism), but the degree of risk varies significantly depending on a woman's particular set of risk factors and the details of the hormone regimen. In addition to estrogens and progestogens, this article also touches on the use of selective steroid receptor modulators in emergency contraception and in treatment of menopause symptoms.
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Affiliation(s)
- Caitlin Allen
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, 5120 MFCB, 1685 Highland Avenue, Madison, WI 53705, USA.
| | - Ginger Evans
- Department of Medicine, VA Puget Sound Health Care System, University of Washington, 1660 South Columbian Way, S-123-PCC, Seattle, WA 98108, USA
| | - Eliza L Sutton
- Department of Medicine, Women's Health Care Center, University of Washington, 4245 Roosevelt Way Northeast, Box 354765, Seattle, WA 98105, USA
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Abstract
Emergency contraception, also known as postcoital contraception, is therapy used to prevent pregnancy after an unprotected or inadequately protected act of sexual intercourse. Common indications for emergency contraception include contraceptive failure (eg, condom breakage or missed doses of oral contraceptives) and failure to use any form of contraception (). Although oral emergency contraception was first described in the medical literature in the 1960s, the U.S. Food and Drug Administration (FDA) approved the first dedicated product for emergency contraception in 1998. Since then, several new products have been introduced. Methods of emergency contraception include oral administration of combined estrogen-progestin, progestin only, or selective progesterone receptor modulators and insertion of a copper intrauterine device (IUD). Many women are unaware of the existence of emergency contraception, misunderstand its use and safety, or do not use it when a need arises (). The purpose of this Practice Bulletin is to review the evidence for the efficacy and safety of available methods of emergency contraception and to increase awareness of these methods among obstetrician-gynecologists and other gynecologic providers.
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Kelekci S, Aydogmus S. Emergency contraception: What is new? World J Obstet Gynecol 2015; 4:95-101. [DOI: 10.5317/wjog.v4.i4.95] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 07/19/2015] [Accepted: 09/08/2015] [Indexed: 02/05/2023] Open
Abstract
Unintended pregnancy rates remain high throughout the World and increase the risk of poor maternal and infant outcomes. Most of unintended pregnancies occur in women who were not using contraception or who became pregnant despite the reported use of contraception. Women who have had recent unprotected intercourse including those who have had another form of contraception fail are potential candidates for this intervention. Currently used emergency contraceptive methods are pills that contain combined estrogen-progesterone, only progestin, antiprogestins and copper intrauterine devices. The most common form of this type of contraception is oral progestin-only pills (levonorgestrel). The most effective method is copper intrauterine devices followed by anti-progestins and oral progestin-only pills. The major pathogenesis of oral emergency contraceptives is the prevention or delay of ovulation. Although conception is possible on only a few days of the cycle, emergency contraception is offered when indicated without regard to the timing of the menstrual cycle because of uncertainty in the timing of the ovulation. Levonorgestrel and E/P regimes are most effective as soon as possible after unprotected sexual intercourse. A linear relationship has been shown between effectiveness and the time of dose. The effectiveness continues for 120 h, but it is recommended to be used within 72 h after intercourse. Intrauterine devices may prevent pregnancy when 5 d after ovulation.
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Thomin A, Keller V, Daraï E, Chabbert-Buffet N. Consequences of emergency contraceptives: the adverse effects. Expert Opin Drug Saf 2014; 13:893-902. [DOI: 10.1517/14740338.2014.921678] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Turok DK, Jacobson JC, Dermish AI, Simonsen SE, Gurtcheff S, McFadden M, Murphy PA. Emergency contraception with a copper IUD or oral levonorgestrel: an observational study of 1-year pregnancy rates. Contraception 2013; 89:222-8. [PMID: 24332433 DOI: 10.1016/j.contraception.2013.11.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Revised: 11/07/2013] [Accepted: 11/09/2013] [Indexed: 12/30/2022]
Abstract
OBJECTIVE We investigated the 1-year pregnancy rates for emergency contraception (EC) users who selected the copper T380 intrauterine device (IUD) or oral levonorgestrel (LNG) for EC. STUDY DESIGN This prospective study followed women for 1 year after choosing either the copper T380 IUD or oral LNG for EC. The study was powered to detect a 6% difference in pregnancy rates within the year after presenting for EC. RESULTS Of the 542 women who presented for EC, agreed to participate in the trial and met the inclusion criteria, 215 (40%) chose the copper IUD and 327 (60%) chose oral LNG. In the IUD group, 127 (59%) were nulligravid. IUD insertion failed in 42 women (19%). The 1-year follow-up rate was 443/542 (82%); 64% of IUD users contacted at 1 year still had their IUDs in place. The 1-year cumulative pregnancy rate in women choosing the IUD was 6.5% vs. 12.2% in those choosing oral LNG [hazard ratio (HR) 0.53, 95% confidence interval (CI): 0.29-0.97, p=.041]. By type of EC method actually received, corresponding values were 5.2% for copper IUD users vs. 12.3% for oral LNG users (HR 0.42, 95% CI: 0.20-0.85, p=.017). A multivariable logistic regression model controlling for demographic variables demonstrates that women who chose the IUD for EC had fewer pregnancies in the following year than those who chose oral LNG (HR 0.50, 95% CI: 0.26-0.96, p=.037). CONCLUSION One year after presenting for EC, women choosing the copper IUD for EC were half as likely to have a pregnancy compared to those choosing oral LNG. IMPLICATIONS Compared to EC users who choose oral levonorgestrel, those who select the copper IUD have lower rates of pregnancy in the next year. Greater use of the copper IUD for EC may lower rates of unintended pregnancy in high-risk women.
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Affiliation(s)
- David K Turok
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT 84132, USA.
| | - Janet C Jacobson
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT 84132, USA
| | - Amna I Dermish
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT 84132, USA
| | - Sara E Simonsen
- Department of Family and Preventive Medicine, Division of Public Health, University of Utah, Salt Lake City, UT 84108, USA
| | | | - Molly McFadden
- Division of Epidemiology, School of Medicine, University of Utah, Salt Lake City, UT 84132, USA
| | - Patricia A Murphy
- University of Utah College of Nursing, Salt Lake City, UT 84132, USA
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The COX-2 inhibitor meloxicam prevents pregnancy when administered as an emergency contraceptive to nonhuman primates. Contraception 2013; 88:744-8. [PMID: 24120248 DOI: 10.1016/j.contraception.2013.09.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 09/04/2013] [Accepted: 09/07/2013] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Cyclooxygenase-2 (COX-2) inhibitors reduce prostaglandin synthesis and disrupt essential reproductive processes. Ultrasound studies in women demonstrated that oral COX-2 inhibitors can delay or prevent follicle collapse associated with ovulation. The goal of this study was to determine if oral administration of a COX-2 inhibitor can inhibit reproductive function with sufficient efficacy to prevent pregnancy in primates. STUDY DESIGN The COX-2 inhibitor meloxicam (or vehicle) was administered orally to proven fertile female cynomolgus macaques using one emergency contraceptive model and three monthly contraceptive models. In the emergency contraceptive model, females were bred with a proven fertile male once 2±1 days before ovulation, returned to the females' home cage, and then received 5 days of meloxicam treatment. In the monthly contraceptive models, females were co-caged for breeding with a proven fertile male for a total of 5 days beginning 2±1 days before ovulation. Animals received meloxicam treatment (1) cycle days 5-22, or (2) every day, or (3) each day of the 5-day breeding period. Female were then assessed for pregnancy. RESULTS The pregnancy rate with meloxicam administration using the emergency contraception model was 6.5%, significantly lower than the pregnancy rate of 33.3% when vehicle without meloxicam was administered. Pregnancy rates with the three monthly contraceptive models (75%-100%) were not consistent with preventing pregnancy. CONCLUSIONS Oral COX-2 inhibitor administration can prevent pregnancy after a single instance of breeding in primates. While meloxicam may be ineffective for regular contraception, pharmacological inhibition of COX-2 may be an effective method of emergency contraception for women. IMPLICATIONS COX-2 inhibitors can interfere with ovulation, but the contraceptive efficacy of drugs of this class has not been directly tested. This study, conducted in nonhuman primates, is the first to suggest that a COX-2 inhibitor may be effective as an emergency contraceptive.
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Wellisch LD, Chor J. LARC FIRST: what the general pediatrician needs to know about IUDs and contraceptive implants. Pediatr Ann 2013; 42:380-3. [PMID: 23992220 DOI: 10.3928/00904481-20130823-13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Lawren D Wellisch
- Department of Pediatrics, Comer Children's Hospital, The University of Chicago, USA. Lawren/
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Dermish AI, Turok DK. The copper intrauterine device for emergency contraception: an opportunity to provide the optimal emergency contraception method and transition to highly effective contraception. Expert Rev Med Devices 2013; 10:477-88. [PMID: 23895075 DOI: 10.1586/17434440.2013.811865] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Worldwide, 40% of all pregnancies are unintended. Widespread, over-the-counter availability of oral emergency contraception (EC) has not reduced unintended pregnancy rates. The EC visit presents an opportunity to initiate a highly effective method of contraception in a population at high risk of unintended pregnancy who are actively seeking to avoid pregnancy. The copper intrauterine device (IUD), the most effective method of EC, continues to provide contraception as effective as sterilization for up to 12 years, and it should be offered as the first-line method of EC wherever possible. Increased demand for and supply of the copper IUD for EC may have an important role in reducing rates of unintended pregnancy. The EC visit should include access to the copper IUD as optimal care but should ideally include access to all highly effective methods of contraception.
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Affiliation(s)
- Amna I Dermish
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, USA
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Gemzell-Danielsson K, Berger C, P.G.L. L. Emergency contraception — mechanisms of action. Contraception 2013; 87:300-8. [DOI: 10.1016/j.contraception.2012.08.021] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Accepted: 08/20/2012] [Indexed: 12/30/2022]
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Abstract
There have been numerous attempts to control fertility after unprotected sexual intercourse (UPSI). From very bizarre methods like the vaginal application of Coca Cola to the more serious attempts using calcium antagonists influencing fertility parameters in sperm to hormonal methods or intrauterine devices. So far, hormonal methods preventing or delaying ovulation have proved to be the most popular starting with the combination of ethinyl estradiol and levonorgestrel (LNG), known as the Yuzpe regimen. The first dose had to be taken within 72 hours of UPSI, a second one 12 hours later. Later on, LNG alone, at first in a regimen similar to the Yuzpe method (2 × 0.75 mg 12 hours apart) showed to be more successful, eventually resulting in the development of a 1.5 mg LNG pill that combined good efficacy with a high ease of use. Several efficacious and easy to use methods for emergency contraception (EC) are available on the market today with the most widely spread being LNG in a single dose of 1.5 mg (given as one tablet of 1.5 mg or 2 tablets of 0.75 mg each) for administration up to 3 days (according to WHO up to 5 days) after UPSI. Its limitations are the non-optimal efficacy which is decreasing the later the drug is taken and the fact that it is only approved for up to 72 hours after UPSI. This regimen has no effect on the endometrium, corpus luteum function and implantation, is not abortive and don't harm the fetus if accidentally taken in early pregnancy. It has no impact on the rate of ectopic pregnancies. It has become the standard method used up to this day in most countries. Since the mid 1970s copper IUDs have been used for EC, which show a high efficacy. Their disadvantages lie in the fact that EC is considered an off label use for most IUDs (not for the GynFix copper IUD in the European Union) and that they might not be acceptable for every patient. Furthermore IUD-insertion is an invasive procedure and it is required trained providers and sterilized facilities. Mifepristone in the dosages of 10 or 25 mg is used with good results as an emergency contraceptive in China for up to 120 hours after UPSI, but has never received any significant consideration in Western countries. While high doses of mifepristone has an effect on endometrial receptivity and will inhibit ovulation if given in the follicular phase and prevent implantation if given in the early luteal phase, low doses such as 10 mg has no impact on the endometrium. Mifepristone does not increase the rate of ectopic pregnancies. The most recent development is the approval of the selective progesterone receptor modulator ulipristal acetate (UPA) in the dosage of 30 mg for EC up to 5 days after UPSI, combining the safe and easy application of the single dose LNG pill with an even higher efficacy. It has shown to be more efficacious than LNG and can be used for up to 120 hours after UPSI; the difference in efficacy is highest for 0-24 hours, followed by 0-72 hours following UPSI. No VTE has been reported following UPA-administration or any progesterone receptor modulator. No effect on endometrium, corpus luteum function and implantation has been observed with doses used for EC. Independent of the substance it should be noted that, if there is a choice, the intake of an oral emergency contraceptive pill should happen as soon as possible after the risk situation. A pre-existing pregnancy must be excluded. Possible contraindications and drug interactions must be considered according to the individual special product informations.
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Affiliation(s)
- Kristina Gemzell-Danielsson
- Department of Woman and Child Health, Karolinska Institutet, WHO-centre, Karolinska University Hospital, Stockholm, Sweden
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Koyama A, Hagopian L, Linden J. Emerging options for emergency contraception. CLINICAL MEDICINE INSIGHTS. REPRODUCTIVE HEALTH 2013; 7:23-35. [PMID: 24453516 PMCID: PMC3888080 DOI: 10.4137/cmrh.s8145] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Emergency post-coital contraception (EC) is an effective method of preventing pregnancy when used appropriately. EC has been available since the 1970s, and its availability and use have become widespread. Options for EC are broad and include the copper intrauterine device (IUD) and emergency contraceptive pills such as levonorgestrel, ulipristal acetate, combined oral contraceptive pills (Yuzpe method), and less commonly, mifepristone. Some options are available over-the-counter, while others require provider prescription or placement. There are no absolute contraindications to the use of emergency contraceptive pills, with the exception of ulipristal acetate and mifepristone. This article reviews the mechanisms of action, efficacy, safety, side effects, clinical considerations, and patient preferences with respect to EC usage. The decision of which regimen to use is influenced by local availability, cost, and patient preference.
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Affiliation(s)
- Atsuko Koyama
- Department of Pediatric Emergency Medicine, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Laura Hagopian
- Department of Emergency Medicine, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Judith Linden
- Department of Emergency Medicine, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts, USA
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Abstract
This review will focus on the available methods for emergency contraception (EC), efficacy, side effects and mechanisms of action. Copper intrauterine device (IUD) has been shown to be the most effective method for EC which can be continually used for regular contraception. However, this possibility is seldom used and may be little known. Among the hormonal EC methods 1.5 mg levonorgestrel is the most widely used EC pill while the more recently developed Ulipristal acetate (UPA) has been shown to be the most effective option. This is probably due to a more pronounced prevention of follicular rupture compared with other hormonal EC methods. Knowledge is needed to better advise lactating women and obese women on optimal EC method. Furthermore a possible interaction of UPA with regular hormonal contraception and possibilities for "bridging" from EC to regular contraception needs to be explored. To increase efficacy future studies should focus on EC methods that target the endometrium.
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Affiliation(s)
- P G L Lalitkumar
- Department of Women's and Children's Health, Division of Obstetrics and Gynecology, Karolinska Institutet/WHO-Collaborating Center, Karolinska University Hospital, Stockholm, Sweden
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Hartman LB, Monasterio E, Hwang LY. Adolescent contraception: review and guidance for pediatric clinicians. Curr Probl Pediatr Adolesc Health Care 2012; 42:221-63. [PMID: 22959636 DOI: 10.1016/j.cppeds.2012.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Revised: 05/11/2012] [Accepted: 05/23/2012] [Indexed: 01/19/2023]
Abstract
The objectives of this article are to review current contraceptive methods available to adolescents and to provide information, guidance, and encouragement to pediatric clinicians to enable them to engage in informed up-to-date interactions with their sexually active adolescent patients. Pregnancy prevention is a complex and dynamic process, and young people benefit from having a reliable authoritative source for information, counseling, and support. Clinicians who provide services for adolescents have a responsibility to develop their skills and knowledge base so that they can serve as that source. This review begins with a discussion about adolescent sexuality and pregnancy in the context of the adolescent developmental stages. We discuss approaches to introduce the topic of contraception during the clinic visit and contraceptive counseling techniques to assist with the discussion around this topic. In addition, information is included regarding confidential services, support of parental involvement, and the importance of male involvement in contraception. The specific contraceptive methods are reviewed in detail with the adolescent patient in mind. For each method, we discuss the mechanism of action, efficacy, contraindications, benefits and risks from the medical perspective, advantages and disadvantages from the patient's perspective, side effects, patient adherence, patient counseling, and any medication interactions. Furthermore, we have included a section that focuses on the contraceptive management for the adolescent patient with a disability and/or chronic illness. The article concludes with an approach to frequently asked or difficult questions. This section largely summarizes subsections on specific contraceptive methods and can be used as a quick reference on particularly challenging topics. Finally, a list of useful contraceptive management resources is provided for both clinicians and patients.
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Affiliation(s)
- Lauren B Hartman
- Division of Adolescent Medicine, Department of Pediatrics, University of California, San Francisco, CA, USA
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Abstract
OBJECTIVE To review current knowledge about emergency contraception (EC), including available options, their modes of action, efficacy, safety, and the effective provision of EC within a practice setting. OPTIONS The combined estradiol-levonorgestrel (Yuzpe regimen) and the levonorgestrel-only regimen, as well as post-coital use of copper intrauterine devices, are reviewed. OUTCOMES Efficacy in terms of reduction in risk of pregnancy, safety, and side effects of methods for EC and the effect of the means of access to EC on its appropriate use and the use of consistent contraception. EVIDENCE Studies published in English between January 1998 and March 2010 were retrieved though searches of Medline and the Cochrane Database, using appropriate key words (emergency contraception, post-coital contraception, emergency contraceptive pills, post-coital copper IUD). Clinical guidelines and position papers developed by health or family planning organizations were also reviewed. VALUES The studies reviewed were classified according to criteria described by the Canadian Task Force on Preventive Health Care, and the recommendations for practice were ranked according to this classification (Table 1). BENEFITS, HARMS, AND COSTS These guidelines are intended to help reduce unintended pregnancies by increasing awareness and appropriate use of EC. SPONSOR The Society of Obstetricians and Gynaecologists of Canada. Summary Statements 1. Hormonal emergency contraception may be effective if used up to 5 days after unprotected intercourse. (II-2) 2. The earlier hormonal emergency contraception is used, the more effective it is. (II-2) 3. A copper IUD can be effective emergency contraception if used within 7 days after intercourse. (II-2) 4. Levonorgestrel emergency contraception regimens are more effective and cause fewer side effects than the Yuzpe regimen. (I) 5. Levonorgestrel emergency contraception single dose (1.5 mg) and the 2-dose levonorgestrel regimen (0.75 mg 12 hours apart) have similar efficacy with no difference in side effects. (I) 6. Of the hormonal emergency contraception regimens available in Canada, levonorgestrel-only is the drug of choice. (I) 7. A pregnancy that results from failure of emergency contraception need not be terminated (I) Recommendations 1. Emergency contraception should be used as soon as possible after unprotected sexual intercourse. (II-2A) 2. Emergency contraception should be offered to women if unprotected intercourse has occurred within the time it is known to be effective (5 days for hormonal methods and up to 7 days for a copper IUD). (II-2B) 3. Women should be evaluated for pregnancy if menses have not begun within 21 days following emergency contraception treatment. (III-A) 4. During physician visits for periodic health examinations or reproductive health concerns, any woman in the reproductive age group who has not been sterilized may be counselled about emergency contraception in advance with detailed information about how and when to use it. (III-C).
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Abstract
More than 50 percent of pregnancies in the United States are unplanned. Emergency contraception has been shown to possibly reduce the risk of pregnancy by as much as 75 percent. Ulipristal acetate is a selective progesterone receptor modulator that was approved by the U.S. Food and Drug Administration (FDA) for emergency contraceptive use in August 2010. This article reviews information on its mechanism of action, efficacy, safety and implications for women's health nurses.
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Affiliation(s)
- Jeanne M Wilton
- Wheaton Franciscan Healthcare Medical Group-All Saints, Racine, WI, USA.
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Cleland K, Zhu H, Goldstuck N, Cheng L, Trussell J. The efficacy of intrauterine devices for emergency contraception: a systematic review of 35 years of experience. Hum Reprod 2012; 27:1994-2000. [PMID: 22570193 DOI: 10.1093/humrep/des140] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Intrauterine devices (IUDs) have been studied for use for emergency contraception for at least 35 years. IUDs are safe and highly effective for emergency contraception and regular contraception, and are extremely cost-effective as an ongoing method. The objective of this study was to evaluate the existing data to estimate the efficacy of IUDs for emergency contraception. METHODS The reference list for this study was generated from hand searching the reference lists of relevant articles and our own article archives, and electronic searches of several databases: Medline, Global Health, Clinicaltrials.gov, Popline, Wanfang Data (Chinese) and Weipu Data (Chinese). We included studies published in English or Chinese, with a defined population of women who presented for emergency contraception and were provided with an IUD, and in which the number of pregnancies was ascertained and loss to follow-up was clearly defined. Data from each article were abstracted independently by two reviewers. RESULTS The 42 studies (of 274 retrieved) that met our inclusion criteria were conducted in six countries between 1979 and 2011 and included eight different types of IUD and 7034 women. The maximum timeframe from intercourse to insertion of the IUD ranged from 2 days to 10 or more days; the majority of insertions (74% of studies) occurred within 5 days of intercourse. The pregnancy rate (excluding one outlier study) was 0.09%. CONCLUSIONS IUDs are a highly effective method of contraception after unprotected intercourse. Because they are safe for the majority of women, highly effective and cost-effective when left in place as ongoing contraception, whenever clinically feasible IUDs should be included in the range of emergency contraception options offered to patients presenting after unprotected intercourse. This review is limited by the fact that the original studies did not provide sufficient data on the delay between intercourse and insertion of the IUD, parity, cycle day of intercourse or IUD type to allow analysis by any of these variables.
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Affiliation(s)
- Kelly Cleland
- Office of Population Research, Princeton University, 218 Wallace Hall, Princeton, NJ 08544, USA.
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Westley E, Schwarz EB. Emergency contraception: global challenges, new opportunities. Contraception 2012; 85:429-31. [PMID: 22386230 DOI: 10.1016/j.contraception.2012.01.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Accepted: 01/23/2012] [Indexed: 12/30/2022]
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Belden P, Harper CC, Speidel JJ. The copper IUD for emergency contraception, a neglected option. Contraception 2012; 85:338-9. [DOI: 10.1016/j.contraception.2011.08.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Accepted: 08/19/2011] [Indexed: 11/25/2022]
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Abstract
Long-acting reversible contraception (LARC) includes intrauterine devices (IUDs) and the subdermal implant. These methods are the most effective reversible methods of contraception, and have the additional advantages of being long-lasting, convenient, well liked by users and cost effective. Compared with other user-dependent methods that increase the risk of noncompliance-related method failure, LARC methods can bring 'typical use' failure rates more in line with 'perfect use' failure rates. LARC methods are 'forgettable'; they are not dependent on compliance with a pill-taking regimen, remembering to change a patch or ring, or coming back to the clinician for an injection. LARC method failure rates rival that of tubal sterilization at <1% for IUDs and the subdermal implant. For these reasons, we believe that IUDs and implants should be offered as first-line contraception for most women. This article provides a review of the LARC methods that are currently available in the US, including their effectiveness, advantages, disadvantages and contraindications. Additionally, we dispel myths and misconceptions regarding IUDs, and address the barriers to LARC use.
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Affiliation(s)
- Amy Stoddard
- Division of Clinical Research, Department of Obstetrics and Gynecology, Washington University in St. Louis School of Medicine, MO, USA
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Harper CC, Speidel JJ, Drey EA, Trussell J, Blum M, Darney PD. Copper intrauterine device for emergency contraception: clinical practice among contraceptive providers. Obstet Gynecol 2012; 119:220-6. [PMID: 22270272 PMCID: PMC3266549 DOI: 10.1097/aog.0b013e3182429e0d] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE The copper intrauterine device (IUD) is the most effective emergency contraceptive available but is largely ignored in clinical practice. We examined clinicians' recommendations of the copper IUD for emergency contraception in a setting with few cost obstacles. METHODS We conducted a survey among clinicians (n=1,246; response rate 65%) in a California State family planning program, where U.S. Food and Drug Administration-approved contraceptives are available at no cost to low-income women. We used multivariable logistic regression to measure the association of intrauterine contraceptive training and evidence-based knowledge with having recommended the copper IUD for emergency contraception. RESULTS The large majority of clinicians (85%) never recommended the copper IUD for emergency contraception, and most (93%) required two or more visits for an IUD insertion. Multivariable analyses showed insertion skills were associated with having recommended the copper IUD for emergency contraception, but the most significant factor was evidence-based knowledge of patient selection for IUD use. Clinicians who viewed a wide range of patients as IUD candidates were twice as likely to have recommended the copper IUD for emergency contraception. Although more than 93% of obstetrician-gynecologists were skilled in inserting the copper IUD, they were no more likely to have recommended it for emergency contraception than other physicians or advance practice clinicians. CONCLUSION Recommendation of the copper IUD for emergency contraception is rare, despite its high efficacy and long-lasting contraceptive benefits. Recommendation would require clinic flow and scheduling adjustments to allow same-day IUD insertions. Patient-centered and high-quality care for emergency contraception should include a discussion of the most effective method. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Cynthia C Harper
- Bixby Center for Global Reproductive Health, Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco, California, USA.
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Richardson AR, Maltz FN. Ulipristal Acetate: Review of the Efficacy and Safety of a Newly Approved Agent for Emergency Contraception. Clin Ther 2012; 34:24-36. [DOI: 10.1016/j.clinthera.2011.11.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2011] [Indexed: 10/14/2022]
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[Focus on intrauterine contraception in 15 questions and answers]. ACTA ACUST UNITED AC 2011; 40:37-42. [PMID: 22030287 DOI: 10.1016/j.gyobfe.2011.07.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Accepted: 07/04/2011] [Indexed: 11/22/2022]
Abstract
In recent years, intrauterine contraception has experienced a revival, explainable as much by the broadening of its indications as by the ever increasing demand, expressed by women, for a contraceptive method that is both reliable and not binding. In this review, we establish an up-to-date and comprehensive state of intrauterine contraception in 2010, by responding to key-questions, which arise from everyday practice in gynaecology.
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Coutin AS, Lopes P. [About the recommendations on emergency contraception in Yeni's 2010 report on medical management of people exposed to HIV. Is there nothing new to propose?]. J Gynecol Obstet Hum Reprod 2011; 40:273-275. [PMID: 21333464 DOI: 10.1016/j.jgyn.2011.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Accepted: 01/11/2011] [Indexed: 05/30/2023]
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Glasier A, Cameron ST, Blithe D, Scherrer B, Mathe H, Levy D, Gainer E, Ulmann A. Can we identify women at risk of pregnancy despite using emergency contraception? Data from randomized trials of ulipristal acetate and levonorgestrel. Contraception 2011; 84:363-7. [PMID: 21920190 DOI: 10.1016/j.contraception.2011.02.009] [Citation(s) in RCA: 199] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 02/11/2011] [Accepted: 02/11/2011] [Indexed: 02/08/2023]
Abstract
BACKGROUND Emergency contraception (EC) does not always work. Clinicians should be aware of potential risk factors for EC failure. STUDY DESIGN Data from a meta-analysis of two randomized controlled trials comparing the efficacy of ulipristal acetate (UPA) with levonorgestrel were analyzed to identify factors associated with EC failure. RESULTS The risk of pregnancy was more than threefold greater for obese women compared with women with normal body mass index (odds ratio (OR), 3.60; 95% confidence interval (CI), 1.96-6.53; p<.0001), whichever EC was taken. However, for obese women, the risk was greater for those taking levonorgestrel (OR, 4.41; 95% CI, 2.05-9.44, p=.0002) than for UPA users (OR, 2.62; 95% CI, 0.89-7.00; ns). For both ECs, pregnancy risk was related to the cycle day of intercourse. Women who had intercourse the day before estimated day of ovulation had a fourfold increased risk of pregnancy (OR, 4.42; 95% CI, 2.33-8.20; p<.0001) compared with women having sex outside the fertile window. For both methods, women who had unprotected intercourse after using EC were more likely to get pregnant than those who did not (OR, 4.64; 95% CI, 2.22-8.96; p=.0002). CONCLUSIONS Women who have intercourse around ovulation should ideally be offered a copper intrauterine device. Women with body mass index >25 kg/m(2) should be offered an intrauterine device or UPA. All women should be advised to start effective contraception immediately after EC.
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Nelson AL. Safety, Efficacy, and Patient Acceptability of the Copper T-380A Intrauterine Contraceptive Device. CLINICAL MEDICINE INSIGHTS. WOMEN'S HEALTH 2011. [DOI: 10.4137/cmwh.s5332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The ParaGard Copper T 380A intrauterine device (CuT380A) provides reversible contraception that is as effective as sterilization for up to 20 years. The CuT380A is a mainstream, first-line contraceptive option for most healthy women, including nulligravid women, as well as many women who have serious medical problems. Because it is the most cost-effective method of birth control, the CuT380A is the preferred IUD, except for women who desire lighter or no menstrual blood loss. Surveys reveal that 95% of US CuT380A users are “very” or “somewhat” satisfied with their method. This article describes current candidates for IUD use, discusses the mechanisms of action of the CuT380A, provides guidance to reduce barriers to IUD access, suggests counseling points for patients, and outlines techniques to reduce the risks and side effects that can be associated with use of the CuT380A.
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Affiliation(s)
- Anita L. Nelson
- Department of Obstetrics and Gynecology, Harbor-UCLA Medical Center, Torrance, CA, USA
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Stoddard A, Eisenberg DL. Controversies in family planning: timing of ovulation after abortion and the conundrum of postabortion intrauterine device insertion. Contraception 2011; 84:119-21. [PMID: 21757051 DOI: 10.1016/j.contraception.2010.12.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Accepted: 12/27/2010] [Indexed: 12/30/2022]
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Turok DK, Gurtcheff SE, Handley E, Simonsen SE, Sok C, North R, Frost C, Murphy PA. A survey of women obtaining emergency contraception: are they interested in using the copper IUD? Contraception 2010; 83:441-6. [PMID: 21477687 DOI: 10.1016/j.contraception.2010.08.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Revised: 08/17/2010] [Accepted: 08/18/2010] [Indexed: 10/19/2022]
Abstract
BACKGROUND This study aims to determine if women presenting for emergency contraception (EC) at family planning clinics may be interested in using the copper intrauterine device (IUD) for EC. STUDY DESIGN This convenience sample survey was offered to women who presented for EC at four participating clinics in urban Utah. Anonymous written questionnaires were distributed. The outcome variable of interest was interest in using the copper IUD for EC. RESULTS Of survey respondents, 320 (34.0%) of 941 said they would be interested in an EC method that was long term, highly effective and reversible. Interested women were not significantly different from noninterested women in relation to age, marital status, education, household income, gravidity, previous abortions, previous sexually transmitted infections (STIs) or relationship status. One hundred twenty women (37.5% of those interested or 12.8% of all those surveyed) would wait an hour, undergo a pelvic exam to get the method and would still want the method knowing it was an IUD. However, only 12.3% of these women could also pay $350 or more for the device. Multivariable regression found the following predictors of interest in the IUD among EC users: non-Hispanic minorities (OR=2.12, 95% CI=1.14-3.93), desire to never be pregnant in the future (OR=2.87, 95% CI=1.38-5.66) and interest in adoption (OR=1.96, 95% CI=1.00-5.73) or abortion (OR=2.68, 95% CI=1.24-4.14) if pregnant when presenting for EC. CONCLUSION While one third of EC users surveyed at family planning clinics were interested in a long-term, highly effective method of contraception, only a small portion of all EC users may be interested in the copper IUD for EC. Cost is a potential barrier.
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Affiliation(s)
- David K Turok
- Department of Obstetrics and Gynecology, University of Utah Health Sciences Center, Salt Lake City, UT 84132, USA.
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Turok DK, Gurtcheff SE, Handley E, Simonsen SE, Sok C, Murphy P. A pilot study of the Copper T380A IUD and oral levonorgestrel for emergency contraception. Contraception 2010; 82:520-5. [PMID: 21074014 DOI: 10.1016/j.contraception.2010.06.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2010] [Revised: 05/27/2010] [Accepted: 06/01/2010] [Indexed: 10/19/2022]
Abstract
BACKGROUND This study evaluates the willingness of women presenting for emergency contraception (EC) to enroll in a study offering the copper intrauterine device (IUD) or oral levonorgestrel (LNG) and follows up the two groups for 6 months after EC administration to compare use of an effective method of contraception. STUDY DESIGN This prospective observational study offered these two methods to women presenting for EC. The primary outcome was use of an effective method of contraception 6 months after presenting for EC. RESULTS Thirty-four women (60%) chose oral LNG and 23 (40%) chose the copper IUD. One month after presenting for EC, 21 (96%) of 22 in the IUD group were still using the IUD and all 22 were using an effective method of contraception (efficacy ≥92%). In the LNG group, 13 (52%) of 25 were using an effective method of contraception (p<.001). At 6 months, 9 (69%) of 13 IUD users and 11 (52%) of 21 oral LNG EC users were using an effective method (p=NS). CONCLUSION Women presenting for EC were willing to enroll in a study offering the copper IUD or oral LNG.
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Affiliation(s)
- David K Turok
- Department of Obstetrics and Gynecology, University of Utah Health Sciences Center, Salt Lake City, UT 84132-2209, USA.
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Wu S, Godfrey EM, Wojdyla D, Dong J, Cong J, Wang C, von Hertzen H. Copper T380A intrauterine device for emergency contraception: a prospective, multicentre, cohort clinical trial. BJOG 2010; 117:1205-10. [DOI: 10.1111/j.1471-0528.2010.02652.x] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sexually speaking: The whole truth about IUDs. Am J Nurs 2010; 110:53-6. [PMID: 20505464 DOI: 10.1097/01.naj.0000377691.87350.7f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Nurses are perfectly positioned to offer women accurate information about an often-neglected contraceptive method.
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35
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Why do women experience untimed pregnancies? A review of contraceptive failure rates. Best Pract Res Clin Obstet Gynaecol 2010; 24:443-55. [PMID: 20335073 DOI: 10.1016/j.bpobgyn.2010.02.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2009] [Accepted: 02/04/2010] [Indexed: 12/11/2022]
Abstract
Contraceptive failure contributes to a substantial proportion of unintended pregnancy, particularly in the developed world. A number of socio-demographic factors seem to impact on the risk of a woman experiencing contraceptive failure. Many of the issues exist across cultural boundaries and are complex to address. In discussing the failure rates for individual contraceptive methods, this article will highlight the advantage of improving uptake of long-acting reversible methods of contraception which have a high efficacy and are less user-dependent than many of the other available methods.
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36
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Mestad RE, Kenerson J, Peipert JF. Reversible contraception update: the importance of long-acting reversible contraception. Postgrad Med 2009; 121:18-25. [PMID: 19641264 DOI: 10.3810/pgm.2009.07.2025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The past several years have seen an expansion in contraception options. Emerging data support the use of long-acting reversible contraception (LARC) such as the intrauterine device and subdermal implant as the most effective methods of contraception with the highest continuation rates and very high levels of patient satisfaction. In addition, the appropriate target population for the use of the intrauterine device now includes nulliparous women and adolescents. When a patient considers initiating a new contraceptive method, it is important to consider the characteristics of each method, including the side effects, effectiveness, and patient acceptability. Additionally, medical comorbidities must also be evaluated prior to choosing a method. In this article, we provide a brief overview of available reversible contraceptive methods, with an emphasis on LARC.
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Affiliation(s)
- Renee E Mestad
- Department of Obstetrics and Gynecology, Washington University in St. Louis School of Medicine, St. Louis, MO 63110, USA
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37
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Moss E, Reynolds T, Kundu A. Emergency contraception: Patterns of use in community sexual health clinics. J OBSTET GYNAECOL 2009; 29:337-9. [DOI: 10.1080/01443610902862712] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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38
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Virjo I, Virtala A. Why do university students use hormonal emergency contraception? EUR J CONTRACEP REPR 2009. [DOI: 10.1080/ejc.8.3.139.144] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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39
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Mandiracioglu A, Mevsim V, Turgul O. Health personnel perceptions about emergency contraception in primary health-care centers. EUR J CONTRACEP REPR 2009. [DOI: 10.1080/ejc.8.3.145.149] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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40
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Interest in intrauterine contraception among seekers of emergency contraception and pregnancy testing. Obstet Gynecol 2009; 113:833-839. [PMID: 19305327 DOI: 10.1097/aog.0b013e31819c856c] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To estimate the interest in using intrauterine contraception among women and adolescent girls seeking emergency contraception or walk-in pregnancy testing. METHODS We surveyed 412 women and adolescent girls who requested emergency contraception or pregnancy testing at four family planning clinics in Pittsburgh, Pennsylvania. The 41-item survey assessed knowledge of, attitudes toward, and interest in using an intrauterine device (IUD). Data were analyzed using chi2 and Fisher exact tests and multivariable logistic regression methods. RESULTS The response rate was 85%. Twelve percent (95% confidence interval [CI] 9-15) of women and adolescent girls surveyed expressed interest in same-day insertion of an IUD, and 22% (95% CI 18-26) wanted more information about IUDs. Interest in same-day IUD insertion increased with higher education level, prior unwanted pregnancy, and experience with barriers to use of contraception. CONCLUSION Same-day IUD insertion may be a reasonable way to increase the use of highly-effective contraception among women and adolescent girls seeking emergency contraception or walk-in pregnancy testing. LEVEL OF EVIDENCE II.
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Black KI. Developments and challenges in emergency contraception. Best Pract Res Clin Obstet Gynaecol 2009; 23:221-31. [DOI: 10.1016/j.bpobgyn.2008.11.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2008] [Accepted: 11/07/2008] [Indexed: 12/30/2022]
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Trussell J. Understanding contraceptive failure. Best Pract Res Clin Obstet Gynaecol 2009; 23:199-209. [PMID: 19223239 PMCID: PMC3638203 DOI: 10.1016/j.bpobgyn.2008.11.008] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2008] [Revised: 11/13/2008] [Accepted: 11/14/2008] [Indexed: 12/30/2022]
Abstract
Contraceptive failure is a major source of unintended pregnancy. This chapter will review sources of data and measurement of contraceptive failure, summarize results from the literature on the risks of contraceptive failure during typical and perfect use for available methods of contraception, provide a tool for communicating risks of contraceptive failure to clients, examine determinants of contraceptive failure, and identify methodological pitfalls in the published literature.
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Affiliation(s)
- James Trussell
- Office of Population Research, 202 Wallace Hall, Princeton University, Princeton, NJ 08544, USA.
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43
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Sannisto T, Kosunen E. Initiation of postpartum contraception: a survey among health centre physicians and nurses in Finland. Scand J Prim Health Care 2009; 27:244-9. [PMID: 19958065 PMCID: PMC3413917 DOI: 10.3109/02813430903234914] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVE To examine self-reported professional practices of postpartum contraceptive counselling at Finnish community health centres. DESIGN A survey study with self-administered online questionnaires. SETTING All local municipalities (n = 107) in the Expert Responsibility Area of Tampere University Hospital in Western Finland in 2005. SUBJECTS A total of 69 (64% of 107) health centre physicians and 80 (75%) nurses performing postpartum check-ups. MAIN OUTCOME MEASURES Contraceptive method most often initiated or recommended to breastfeeding women at postpartum visit; timing of postpartum initiation of hormonal and intrauterine contraceptive methods in relation to breastfeeding and resumption of menses. RESULTS The most common contraceptive method initiated or recommended to breastfeeding women by both physicians (41%) and nurses (45%) was the condom, followed by progestin-only pills and intrauterine contraception. Few professionals recommended breastfeeding (lactational amenorrhea) as the only contraceptive method. Only eight (12%) physicians inserted a copper-releasing intrauterine device and five (7%) a levonorgestrel-releasing intrauterine system typically at the postpartum visit; the majority delayed the insertions until the resumption of menses. Fifty-three (77%) physicians initiated combined oral contraceptives mostly when breastfeeding was terminated and menses had returned. Over half of the municipalities involved in the study did not provide any medical contraceptives free of charge postpartum. CONCLUSION Professionals' reports indicate that initiation of effective contraceptive methods is delayed after childbirth. In order to promote better postpartum contraception practices, updated evidence-based guidelines are needed.
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Affiliation(s)
- Tuire Sannisto
- Medical School, Department of General Practice, University of Tampere, and Pirkanmaa Hospital District, Centre of General Practice, Tampere, Finland
| | - Elise Kosunen
- Medical School, Department of General Practice, University of Tampere, and Pirkanmaa Hospital District, Centre of General Practice, Tampere, Finland
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Abstract
Emergency contraception (EC), also known as 'the morning after pill', or post-coital contraception, is a modality of preventing the establishment of a pregnancy after unprotected intercourse. Both a hormonal and an intrauterine form are available. Modern hormonal EC, with low side effects, was first proposed by Yuzpe in 1974. More recently, a new regimen, consisting of levonorgestrel administered alone, was introduced and found in clinical trials to be more effective (if taken as early as possible), and associated with less side effects than the Yuzpe regimen, which it has gradually replaced. The WHO developed another regimen based on the use of the selective progesterone receptor modulator (antiprogestin) mifepristone and conducted trials with different dosages. Intrauterine EC was first proposed by Lippes in 1976. It has the advantage of being applicable for almost a week and the disadvantage of a greater complexity. In addition, this modality is solely interceptive, acting by preventing implantation. Pregnancy rates reported following EC using an intrauterine device with more than 300 mm2 of copper are consistently low (0.1-0.2%).
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Affiliation(s)
- Carlo Bastianelli
- Department of Gynaecologic Sciences, Perinatology and Child Care, University la Sapienza, Rome, Italy.
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45
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Thonneau PF, Almont T. Contraceptive efficacy of intrauterine devices. Am J Obstet Gynecol 2008; 198:248-53. [PMID: 18221924 DOI: 10.1016/j.ajog.2007.10.787] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2007] [Revised: 10/01/2007] [Accepted: 10/01/2007] [Indexed: 11/17/2022]
Abstract
To compare the contraceptive efficacy of various types of intrauterine devices (IUD; copper devices, Nova-T, intrauterine contraceptive systems, levonorgestrel-releasing devices), we reviewed all relevant publications on this subject that have been published over the last 2 decades. The first point to be highlighted by this review is the excellent effectiveness of IUDs, with a global cumulative pregnancy rate <2% at 5 years, whatever the type of device used. We observed a large variation in efficacy rate according to the type of IUD and also according to study design. Nevertheless, of all the types of IUDs, the levonorgestrel-releasing IUD and to a lesser extent the TCu380A IUD seem to be the most effective, with a cumulative pregnancy rate at 5 years of <0.5% for the levonorgestrel-releasing IUD and between 0.3% and 0.6% for the TCu380A IUD.
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Trussell J, Guthrie KA. Talking straight about emergency contraception. JOURNAL OF FAMILY PLANNING AND REPRODUCTIVE HEALTH CARE 2007; 33:139-42. [PMID: 17609063 DOI: 10.1783/147118907781004859] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- James Trussell
- Office of Population Research, Princeton University, Princeton, NY 08544, USA.
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Hubacher D. Copper intrauterine device use by nulliparous women: review of side effects. Contraception 2007; 75:S8-11. [PMID: 17531622 DOI: 10.1016/j.contraception.2006.12.005] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2006] [Accepted: 12/13/2006] [Indexed: 10/23/2022]
Abstract
BACKGROUND Nulliparity was once a relative contraindication to using the copper IUD. However, new research and changes in product labeling have eased safety concerns. Side effects remain a major problem with copper IUD use in this population. METHODS A review of published articles was undertaken to find information on expulsion rates and removals for bleeding and pain among nulliparous women using a copper IUD; approximately 500 articles and abstracts were found. RESULTS In 15 studies comparing IUD performance in parous vs. nulliparous women, nulliparous women had higher rates of expulsion and removals due to bleeding and pain. Among 8 studies examining different types of copper IUDs in nulliparous women, some evidence suggests IUD size and shape play a role in performance. CONCLUSION All existing copper IUDs are suitable for use by nulliparous women. However, more research is needed to determine whether expulsions and removals due to bleeding and pain can be reduced with improved copper devices.
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Affiliation(s)
- David Hubacher
- Family Health International, PO Box 13950, Research Triangle Park, NC 27709, USA.
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49
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Abstract
Contraindications to IUD or IUS use can be found on product labeling, in the guidelines of various specialty groups and in recommendations from peer-reviewed articles. Overly restrictive contraindications block access to this top-tier method for many women who would be candidates based on current scientific evidence. Assuming that a condition should be listed as a contraindication only if the risk of IUD/IUS use by a woman with that condition exceeds her risk with pregnancy, the list of contraindications is reduced to pregnancy, active uterine infection, malignancy in the uterus or cervix, an inability to place or retain the device, unexplained abnormal bleeding and adverse reaction to product ingredients.
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Affiliation(s)
- Anita L Nelson
- Harbor-UCLA Medical Center, Box 474, Torrance, CA 90509-2910, USA.
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50
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Abstract
Changes in the use of intrauterine devices (IUDs) for contraception in China in the past 10 years are reviewed. Replacement of the inert stainless steel ring with copper-bearing IUDs was an essential decision to improve the efficacy of the IUDs. The most commonly used, TCu380A, TCu220C and MLCu375, and those developed in China, such as the uterine-shaped UCu300 IUD and gamma Cu380 IUD, are reviewed. Studies of MLCu375 and TCu380A for emergency contraception revealed a highly effective method, which could prevent over 96% of unwanted pregnancies. Use of levonorgestrel-releasing system provides both contraceptive and therapeutic effects in the treatment of menorrhagia.
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Affiliation(s)
- Xiao Bilian
- National Research Institute for Population and Family Planning, Beijing, 100081, PR China.
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