Journal
HUMAN REPRODUCTION
Volume 25, Issue 2, Pages 354-359Publisher
OXFORD UNIV PRESS
DOI: 10.1093/humrep/dep426
Keywords
bleeding profile; insertion; contraception; heavy menstrual bleeding
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Funding
- Bayer Schering Pharma AG
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The LNG-IUS has increasingly been used for contraception, treatment of menorrhagia and endometrial protection during hormone replacement therapy since mid-1990s. Thus, many women use the LNG-IUS consecutively. However, published data on the bleeding pattern regarding consecutive use of the LNG-IUS is scarce. We performed a prospective 15-month multicentre study on the bleeding profile, removal and insertion procedures and safety of the second LNG-IUS in fertile-aged women who had used their first LNG-IUS between 4 years 3 months and 4 years 9 months and who opted for the insertion of a second IUS immediately after removal of the first IUS. Bleeding data were reported descriptively starting from the last 90 days of the first IUS use and continuing for up to 1 year. Of the 234 subjects screened, 204 (87%) entered the trial. The median number of bleeding/spotting days during the last 90 days of the first LNG-IUS was 7 (25 and 75% percentiles 0 and 15). Due to bleeding associated with the insertion procedure, this increased to 8 days (4 and 18) during the first 90-day reference period, thereafter decreasing to 4 (0 and 10) days during the second to fourth reference periods. Only one expulsion and no pregnancies, pelvic inflammatory diseases or perforations occurred. A total of 12 subjects (5.9%) prematurely discontinued the study: five due to an adverse event and seven due to other reasons (inclusive of loss to follow-up). This study confirms the favourable bleeding profile and safety of consecutive use of the LNG-IUS.
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