Next Fertility at SEF 2022

Equipo de Next Fertility en la Convención Bianual de la SEF 2022

On 4 May, the 33rd edition of the SEF (Spanish Fertility Society) was held in Bilbao, where, during the three days it took place, our Next Fertility team presented 10 of the papers on display. After several years paralysed due to the pandemic, the biannual congress was held again.


The SEF, considered the most important congress on assisted reproduction at national level, is a scientific society whose aim is to promote fertility studies and encourage their application to the social problems related to it. Its objectives also include advising the Administration, and other entities that require it, on issues related to reproductive health, as well as disseminating knowledge related to it.

Next Fertility at the SEF

On the 4th, the first day of the congress, Silvia Bonta, gynaecologist of our clinic Next Fertility Valencia, presented the “Analysis of the “Ovarian Sensitivity Index” (OSI) with the use of two gonadotropins and two pituitary suppression protocols, paired study of oocyte yield” and “Two models of pituitary suppression in combined ovarian stimulation protocol: Paired study in oocyte donors”. Emilio Gómez, Laboratory Director of Next Fertility Murcia, presented “Analysis of the development and ploidy of embryos with Direct Unequal Cleavage in the first cell divisions (DUC): Should we discard them?” and “Can we determine ranges of morphokinetic parameters to establish which embryos will be able to reach an optimal stage of development?” in collaboration with the company Fairtility with the CHLOE system. In addition, José Antonio Castilla, Medical Director of CEIFER, acted as moderator of session 3.

The second day of the congress was the turn of Nuria Almunia Santiago, embryologist at Next Fertility, who presented the “Effect of sperm aneuploidy on the results of PGT-A of our assisted reproduction programme”, Paula Cots Rodríguez who presented “Analysis of the polymorphisms c.677C˃T and c.1298A˃C of the MTHFR gene and their possible application as markers of embryo quality”. José Antonio Castilla, spoke again on the second day of the congress with the SEF registration session with “The importance of the name of things: heteronormativity and SEF”.

The last day of the congress was held on 6 April, this time with the intervention of our colleagues Marta Molina, clinical geneticist, Rocío Fuentes Dorado, nurse coordinator at Next Fertility and Jose Antonio Castilla Alcalá.
Genotyping analysis of the CFTR gene in gamete donors”, “Genetic matching, genotyping test or complete gene analysis? Study model with double gamete donation”, “Genetic Analysis of X-linked Recessive Diseases in Sperm Donors”, “Study of SARS-CoV-2 in spermatozoa from asymptomatic donors with the presence of the virus in nasopharyngeal swabs”. For her part, Rocío Fuentes presented the “Development and validation of a questionnaire to assess knowledge on fertility preservation in final year undergraduate students of Nursing and Medicine” and José Antonio Castilla Alcalá concluded with the “Development and validation of a questionnaire to assess knowledge on fertility preservation in final year undergraduate students of Nursing and Medicine”.

We would like to take this opportunity to congratulate all the speakers for their impeccable participation, once again, in the SEF congress.

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