Koetsawang S, Rachawat D, Piya-Anant M
Acta Obstet Gynecol Scand. 1977;56(5):479-82. doi: 10.3109/00016347709155015.
The outcome of 196 pregnancies with Lippes Loop in situ was studied. In 102 cases with inaccessible thread, the IUD was left in place. Ninety-four women had the IUD removed when the thread was still visible. The incidence of spontaneous abortion and premature delivery was 56.8% in the group of 102, and was significantly higher than in those women whose loop was removed. No serious complications occurred in any of the cases. The results suggested that the IUD should be removed early in pregnancy when the string is still accessible.
对196例带Lippes环原位妊娠的结局进行了研究。在102例尾丝无法触及的病例中,宫内节育器留在原位。94名妇女在尾丝仍可见时取出了宫内节育器。102例组的自然流产和早产发生率为56.8%,显著高于取出节育器的妇女。所有病例均未发生严重并发症。结果表明,当尾丝仍可触及且妊娠时,应尽早取出宫内节育器。