Resultados de inseminación artificial (conyugales y de donante) del Registro Nacional de Actividad – Registro de la Sociedad Española de Fertilidad. Años 2016 y 2017

Abstract

Introduction

The data from the National Register of Activity in Assisted Human Reproduction (RNA – Register SEF), for artificial insemination during 2016 and 2017 are presented.

Material and methods

The data for conjugal and donor artificial insemination (AI-C and AI-D respectively) collected by the RNA – Register SEF during 2016 and 2017 were analysed and compared with data obtained in previous years. Participation was mandatory for Spanish assisted reproduction centres and annual aggregate data was collected by centre and in situ monitoring was carried out at random on data provided by more than 15% of the participating centres. A total of 36,463 cycles were analysed in 2016 (24,130 AI-C cycles and 12,333 AI-D cycles) and 34,964 cycles in 2017 (22,199 AI-C and 12,765 AI-D cycles).

Results

No significant differences were observed in the overall gestation rate per cycle, either for AI-C (2016: 13.0%; 2017: 12.6%) or for AI-D (2016: 20.4%; 2017: 19.6%). In 2016, 10.4% of the pregnancies obtained through AI-C were multiple pregnancies. Similar figures (10.7%) were obtained in 2017. Similar results were observed in AI-D, where the multiple gestation rate was 11.8% in 2016 and 9.9% in 2017. In pregnancies obtained with AI-C, 18.5% resulted in miscarriage in 2016, and 18.9% in 2017. With the donor technique, 17.2% resulted in miscarriage in 2016 and 17.7% in 2017.

Conclusions

Despite a slight increase in the number of participating centres, a decrease is observed in the use of AI-C, but this trend does not occur with AI-D.