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Safety issue with TT380 Slimline intrauterine contraceptive device: response to Karen Trewinnard and Colin Parker
  1. Mary Pillai1,2
  1. 1Sexual Health Service, Gloucestershire Care Services NHS Trust, Gloucester, Gloucestershire, UK;
  2. 2Department of Obstetrics, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK
  1. Correspondence to Dr Mary Pillai; mary.pillai{at}

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Karen Trewinnard reported failure of a TT380 Slimline device to release into the uterine cavity,1 and Colin Parker has replied that changes in the manufacturing are being addressed to reduce the incidence of the device kinking.2 My own experience of inserters kinking and not releasing the device during insertion is that this most often happens when the device has not entered the endometrial cavity correctly. Usually the fitter will have noted resistance during the insertion, and on withdrawing the inserter tube things do not feel right. I am fortunate to have ultrasound for assessing any such difficulty. Framed devices cannot deploy correctly when released …

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