Patient Prefer Adherence. 2013 Aug 09;7:777-85. doi: 10.2147/PPA.S36948. eCollection 2013.
Role of the levonorgestrel intrauterine system in effective contraception.
Patient preference and adherence
Abdelhamid M Attia, Magdy M Ibrahim, Ahmed M Abou-Setta
Affiliations
Affiliations
- Department of Obstetrics and Gynecology, Cairo University, Cairo, Egypt.
PMID: 23990713
PMCID: PMC3749061 DOI: 10.2147/PPA.S36948
Abstract
Norgestrel, a synthetic progestin chemically derived from 19-nortestosterone, is six times more potent than progesterone, with variable binding affinity to various steroid receptors. The levonorgestrel-releasing intrauterine system (LNG IUS) provides a long-acting, highly effective, and reversible form of contraception, with a pearl index of 0.18 per 100 women-years. The locally released hormone leads to endometrial concentrations that are 200-800 times those found after daily oral use and a plasma level that is lower than that with other forms of levonorgestrel-containing contraception. The contraceptive effect of the LNG IUS is achieved mainly through its local suppressive effect on the endometrium, leading to endometrial thinning, glandular atrophy, and stromal decidualization without affecting ovulation. The LNG IUS is generally well tolerated. The main side effects are related to its androgenic activity, which is usually mild and transient, resolving after the first few months. Menstrual abnormalities are also common but well tolerated, and even become desirable (eg, amenorrhea, hypomenorrhea, and oligomenorrhea) with proper counseling of the patient during the choice of the method of contraception. The satisfaction rates after 3 years of insertion are high, reaching between 77% and 94%. The local effect of the LNG IUS on the endometrium and low rates of systemic adverse effects have led to its use in other conditions rather than contraception, as for the treatment of endometrial hyperplasia, benign menorrhagia, endometriosis, adenomyosis, and uterine fibroids.
Keywords: Mirena; Skyla; contraception; family planning; intrauterine device; levonorgestrel
References
- Contraception. 2012 Sep;86(3):214-9 - PubMed
- Cochrane Database Syst Rev. 2001;(2):CD001327 - PubMed
- Fam Plann Perspect. 1999 Mar-Apr;31(2):64-72, 93 - PubMed
- Reprod Sci. 2013 Jan;20(1):45-50 - PubMed
- Hum Reprod. 2013 Aug;28(8):2118-25 - PubMed
- Contraception. 2003 Feb;67(2):87-91 - PubMed
- Contraception. 2007 Jun;75(6 Suppl):S161-6 - PubMed
- Contraception. 2002 Jul;66(1):7-13 - PubMed
- Contraception. 2011 Sep;84(3):234-9 - PubMed
- N Engl J Med. 2012 Jun 14;366(24):2257-66 - PubMed
- Int J Gynecol Pathol. 1986;5(3):235-41 - PubMed
- Fertil Steril. 2008 Jul;90(1):17-22 - PubMed
- Hum Reprod. 2007 Oct;22(10):2647-52 - PubMed
- Hum Reprod Update. 2006 Mar-Apr;12(2):169-78 - PubMed
- Cochrane Database Syst Rev. 2004;(3):CD001776 - PubMed
- Hum Reprod. 2006 May;21(5):1316-9 - PubMed
- Cutis. 2008 Jan;81(1 Suppl):19-22 - PubMed
- Obstet Gynecol. 1991 Feb;77(2):261-4 - PubMed
- Obstet Gynecol. 1983 Jan;61(1):31-6 - PubMed
- Obstet Gynecol Surv. 2005 Sep;60(9):604-12 - PubMed
- Obstet Gynecol. 2012 Aug;120(2 Pt 1):341-7 - PubMed
- Circulation. 2007 Oct 9;116(15):1736-54 - PubMed
- Contraception. 2001 Jul;64(1):1-2 - PubMed
- Contraception. 2012 Mar;85(3):224-34 - PubMed
- Obstet Gynecol. 2012 Dec;120(6):1314-21 - PubMed
- Contraception. 1994 Jan;49(1):56-72 - PubMed
- J Gynecol Oncol. 2013 Apr;24(2):128-34 - PubMed
- Eur J Contracept Reprod Health Care. 2003 Sep;8(3):150-5 - PubMed
- Cochrane Database Syst Rev. 2013 Feb 28;(2):CD008994 - PubMed
- Hum Reprod. 2010 May;25(5):1158-64 - PubMed
- Cochrane Database Syst Rev. 2013 Jun 05;(6):CD009458 - PubMed
- Contraception. 1991 Nov;44(5):473-80 - PubMed
- Adv Drug Deliv Rev. 2009 Aug 10;61(10):808-12 - PubMed
- Contraception. 1984 Nov;30(5):443-56 - PubMed
- Circulation. 2008 Aug 19;118(8):887-96 - PubMed
- Hum Reprod. 2011 Feb;26(2):323-9 - PubMed
- Obstet Gynecol. 2005 Oct;106(4):813-7 - PubMed
- J Fam Plann Reprod Health Care. 2002 Apr;28(2):73-7 - PubMed
- Maturitas. 2011 Aug;69(4):354-8 - PubMed
- Clin Ther. 1996 Jan-Feb;18(1):150-9 - PubMed
- Cochrane Database Syst Rev. 2004 Oct 18;(4):CD001777 - PubMed
- Patient Prefer Adherence. 2009 Nov 03;3:131-43 - PubMed
- Eur J Contracept Reprod Health Care. 2008 Dec;13(4):362-75 - PubMed
- Eur J Contracept Reprod Health Care. 2004 Sep;9(3):182-93 - PubMed
- Obstet Gynecol. 2011 Jul;118(1):184-196 - PubMed
- Lancet. 1992 Mar 28;339(8796):785-8 - PubMed
- Contraception. 1990 Jul;42(1):67-96 - PubMed
- Hum Reprod. 2003 Jan;18(1):77-84 - PubMed
- Fertil Steril. 2003 Apr;79(4):963-9 - PubMed
- Obstet Gynecol. 2002 Apr;99(4):608-13 - PubMed
- Am J Obstet Gynecol. 2008 Nov;199(5):529.e1-529.e10 - PubMed
- Contraception. 2011 Mar;83(3):211-7 - PubMed
- Contraception. 2002 Aug;66(2):121-8 - PubMed
- Acta Obstet Gynecol Scand. 1999 Sep;78(8):716-21 - PubMed
- Contraception. 2002 Feb;65(2):129-32 - PubMed
- Contraception. 2006 Nov;74(5):376-81 - PubMed
- Lancet. 2000 Sep 16;356(9234):1013-9 - PubMed
- Cochrane Database Syst Rev. 2005 Oct 19;(4):CD002126 - PubMed
- Obstet Gynecol. 2013 May;121(5):943-950 - PubMed
- Steroids. 2000 Oct-Nov;65(10-11):693-7 - PubMed
- Contraception. 2010 Jun;81(6):481-6 - PubMed
- Clin Exp Obstet Gynecol. 2013;40(1):122-6 - PubMed
- Ann Med. 1990 Apr;22(2):85-90 - PubMed
- Adv Data. 2004 Dec 10;(350):1-36 - PubMed
- Cochrane Database Syst Rev. 2013 Jan 31;(1):CD005072 - PubMed
- Contraception. 2007 Oct;76(4):292-6 - PubMed
- Thromb Haemost. 2009 Apr;101(4):691-5 - PubMed
- Contraception. 2004 May;69(5):407-12 - PubMed
- J Fam Plann Reprod Health Care. 2003 Jan;29(1):13-6 - PubMed
- Cochrane Database Syst Rev. 2009 Jul 08;(3):CD007373 - PubMed
- Fertil Steril. 2012 Mar;97(3):616-22.e1-3 - PubMed
- Contraception. 1995 Nov;52(5):269-76 - PubMed
- Contraception. 2007 Jun;75(6 Suppl):S155-60 - PubMed
- Obstet Gynecol. 2005 Apr;105(4):811-5 - PubMed
- Fertil Steril. 1994 Jan;61(1):70-7 - PubMed
- Contraception. 2003 Jul;68(1):3-10 - PubMed
- Eur J Contracept Reprod Health Care. 2006 Mar;11(1):28-37 - PubMed
- BJOG. 2000 Oct;107(10):1218-25 - PubMed
- Contraception. 2007 Jun;75(6 Suppl):S16-30 - PubMed
- Obstet Gynecol. 2010 Nov;116(5):1079-87 - PubMed
- Ann N Y Acad Sci. 2003 Nov;997:185-93 - PubMed
- Maturitas. 2003 Dec 10;46 Suppl 1:S7-S16 - PubMed
- Am J Obstet Gynecol. 2012 Nov;207(5):384.e1-6 - PubMed
- Ultrasound Obstet Gynecol. 2002 Oct;20(4):381-5 - PubMed
- Drugs Aging. 2004;21(13):865-83 - PubMed
- NAACOGS Clin Issu Perinat Womens Health Nurs. 1992;3(2):267-79 - PubMed
- Hum Reprod. 1998 Dec;13(12):3379-83 - PubMed
- Int J Gynaecol Obstet. 2005 Apr;89(1):67-8 - PubMed
- Contraception. 2013 Apr;87(4):421-5 - PubMed
- Hum Reprod. 1998 May;13(5):1210-7 - PubMed
- Fertil Steril. 1986 Jun;45(6):805-7 - PubMed
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