RESUMO
In the early days of assisted reproductive technology (ART), the main target was achieving gestation. Success rates were low, and multiple embryo transfers became common practice, with multiple pregnancies being 20 times higher than in natural conception. Multiple pregnancy is associated with a higher risk of complications for the mother and the baby than a singleton pregnancy. Added to healthcare costs, multiple pregnancy also involves other costs and psychosocial risks, with a high social and health costs. At present, success rates of assisted human reproduction (AHR) have improved dramatically, partially due to advances in laboratory techniques such as culture of blastocyst-stage embryos and vitrification. Additionally, there is a wide range of counseling, health and economic policies that have demonstrated being effective in increasing single-embryo transfer (SET) practices and reducing multiple pregnancies, which ensures satisfactory success rates. Therefore, single-embryo transfer emerges as the approach of choice for AHR to result in a full-term healthy newborn.
RESUMO
Segundo de la serie de la Comisión de Andrología y Técnicas de Reproducción Asistida elaborada para facilitar el correcto mantenimiento, control y ajuste de los equipos que se utilizan en el Laboratorio de Andrología y Embriología. Se centra en los equipos auxiliares que dan soporte a los diferentes procesos de reproducción asistida. Incluye un programa de control para equipos de seguimiento y medición con frecuencias de revisión y criterios de aceptación
The second in the series of the Committee of Andrology and Techniques of Assisted Reproduction Committee, is prepared in order to carry out the correct maintenance, control and adjustment of the equipment used in the Andrology and Embryology laboratory. It focuses on the auxiliary equipment that supports the different processes of assisted reproduction. It includes a control program for monitoring and measuring equipment with revision frequencies and acceptance criteria
