Mercedes Calero Ruiz, Ana Isabel Mangano Armada, Javier María Gutiérrez Romero, M Ángeles Bailén García and Rafael Torrejón Cardoso
Report the case of a quadruple pregnancy (monochorionic diamniotic and dichorionic diamniotic) after the transfer of two blastocysts generated by intracytoplasmic sperm injection (ICSI). A 29-year-old woman patient with transfer of two blastocysts after long cultivation of 6 embryos generated by ICSI and vitrified in d+3, in a couple with primary infertility diagnosis due to male factor. This revealed quadruple pregnancy (monochorionic diamniotic and dichorionic diamniotic) of 56 days of evolution by transvaginal ultrasound. The couple decided to have selective embryo reduction of the monochorionic diamniotic gestation after receiving information about the risks arising from it. After that embryo reduction the uncomplicated pregnancy continued until 36 weeks of gestation, achieving reproductive success with the birth of two babies alive and healthy.