The appearance of calcium deposits on the copper portion of intrauterine devices (Copper IUD) is a well-known and documented fact. Published studies trying to explain the etiology of this condition, have found a correlation between the length of time that the IUD has been inside the uterine cavity and the presence of calcium deposits, although there is large variation. Moreover, it has been reported that the presence of calcium deposits is greater if there is inflammation.
The presence of calcium deposits in the intracavitary portion of the essure devices is also documented (Maassen, LW, van Gastel, DM, Lentjes, EGWM, Bongers, MY, & Veersema, S. (2017) .Intracavitary deposits on Essure® hysteroscopic sterilization devices: A case report, Case Reports in Women’s Health, 15, 3-5.). In this study, the authors determined the composition of the calcium deposits by infrared spectroscopy (Calcium carbonate). The determination of the same deposits in the copper portion of IUDs, have given the same component, which seems to suggest a predisposition of the uterus to form calcium ions that deposit on metals when present inside the uterine cavity.
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