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Erschienen in:
14.12.2022 | Original Article
Does Timing of Levonorgestrel Insertion in Women with Abnormal Uterine Bleeding Affect its Expulsion and Bleeding Pattern? A Follow-Up Study
Erschienen in: The Journal of Obstetrics and Gynecology of India | Ausgabe 2/2023
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Background
Levonorgestrel Intra Uterine System insertion for contraception is preferred in the follicular phase. However, the ideal time of insertion for Abnormal Uterine Bleeding is not stated clearly. The aim of our study is to find out the effect of timing of insertion on expulsion and irregular bleeding pattern post insertion.
Methods
A follow-up study of patients with LNG-IUS for AUB was conducted. They were grouped into four based on the day of insertion from Last Menstrual Period (LMP). The pattern of irregular bleeding post insertion was compared with odds ratio and the expulsion rate was compared with log rank test.
Results
The most common indication for the 76 patients was ovulatory dysfunction (39.4%) followed by Adenomyosis (36.84%). Those who had LNG-IUS insertion from day 22–30 had quicker expulsions of 25% of patients by 3 months. By 6 months and later expulsion rate was much higher in the luteal phase than the follicular phase (p < 0.03). The least risk of moderate or heavy bleeding was for the 8–15 day group when compared to the 22–30 day group, the odds ratio being 0.03 [95% CI: (0.01–0.2)].
Conclusion
Based on expulsion rate alone, insertion of LNG-IUS at any time in the follicular phase is ideal. Considering both expulsion rate and pattern of bleeding the ideal time would be late follicular phase, that is 8–15th day.