[Advantages and disadvantages of IUD insertion immediately after abortion]

In 672 women the interval insertion of intrauterine contraception devices (IUD) was applied: Lippes loop D in 138 women. In 530 women the insertion was applied immediately after artificial abortion: Lippes loop C in 390 and Lippes loop D in 140 cases. Data on the effectiveness of intrauterine contraception were biostatistically treated. One- and two-year gross cumulative rates of pregnancy were 4.4 and 6.4, respectively 3.7 and 6.3 for the interval insertion of Lippes loop C and D, and 2.1 and 4.5, respectively 4.2 and 11.2 for the postabortion insertion of the same devices. Two-year cumulative rates of spontaneous expulsions of 18.5 and 8.1 for interval insertions were significantly higher than in the group of women in whom the insertion of the same devices was performed immediately after abortion and in whom these rates were 11.1 and 5.9. The removal of intrauterine contraception devices because of bleeding and pain, or because of both, with the rates of 6.4 and 3.2 in 100 women after a two-year use, was less frequent in the group of women in whom interval insertion was performed than in the group of postabortion insertions with the corresponding rates of 7.3 and 9.9, respectively. To prevent repeated abortions, a frequent use of postabortion IUD insertion is recommended. Only when an intensified bleeding is expected, it is advisable to postpone insertion at least until the first menstruation.