Abstract
The results of intrauterine contraception using the Antigon inserted into 364 women immediately post partum are submitted. The patients were followed for 24 months, total number of woman months 5225. The follow‐up was 96.7% after 3 months, 92.9% after 12 months, and 89.7% after 24 months. Four types of Antigon were used, having surface areas from 785 to 2740 mm2. Type I and the wing model (type IV), which have the smallest surface area, proved best suited. The continuation rates for types I and IV after 12 and 24 months were 77.4–59.2 and 76.4–54.5 respectively. These rates are on a level with those for Antigon inserted 6–8 weeks post partum. It is notable that the expulsion rates (12.8 and 12.7 after 12 months) were no higher than those for Antigons inserted 6–8 weeks post partum. The incidence of puerperal complications was not increased, and no perforations occurred.

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