#72 : Embryo Quality and Pregnancy Outcome from Oocytes with Smooth Endoplasmic Reticulum (SER) Aggregates

Abstract

Background and Aims: Calcium stored and released by the Smooth Endoplasmic Reticulum - SER which has an important role in oocyte maturation, fertilization, and embryo development. The presence of SER aggregate result in the disturbance of calcium stores and its occillation which in turn affect fertilization, embryo develompent, and increasing risk of abnormal cromoseme outcome. Alpha-ESHRE Consensus (2011), strongly recomended to not perform insemination on any oocytes with SER. In the other hand, some previous studies show that healthy babies had been born from oocytes presenting this dymorphism. The aim of this study was to evaluate embryo quality and pregnancy outcome patients derived from oocytes with SER. Method: This study was a crosssectional analysis from 2017-2019 of 223 MII oocytes with SER from 82 women underwent Intra cytoplasmic sperm injection - ICSI. Prior to ICSI, each oocyte was evaluated for the presence of SER Aggregates. The embryological outcome measures were the fertilization rate, embryo quality day 3 and day 5, and pregnancy rates. Results: This study result shown that from 223 oocytes with SER, 89.5% oocytes can be fertilized. Day 3 embryo 66.6% ± 0.000 qualified as good embryo, but only 29.1% ± 0.000 on day 5 embryo. The Pregnancy rate was 30.0%, with 2 miscarriages. It is important to give a well information to the patients on the risk of birth malformations as well as whether a decreased chance of pregnancy exists. Conclusion: Oocyte with SER still has the ability to develop and has the potential to support pregnancy.