Is ovarian response associated with adverse perinatal outcomes in GnRH antagonist IVF/ICSI cycles?. Issue 2 (August 2020)

• Record Type: Journal Article
• Authors: Bardhi, Erlisa; Blockeel, Christophe; Cools, Wilfried; Santos-Ribeiro, Samuel; Racca, Annalisa; Mackens, Shari; De Vos, Michel; Polyzos, Nikolaos P.; Popovic-Todorovic, Biljana; De Brucker, Michael; Muzii, Ludovico; Panici, Pierluigi Benedetti; Tournaye, Herman; Drakopoulos, Panagiotis
• Is Part Of: Reproductive biomedicine online. Volume 41:Issue 2(2020)
• Page Start: 263
• Page End: 270
• Publication Date: 2020-08
• Subjects: Birthweight -- IVF -- Neonatal outcomes -- Oocytes retrieved -- Ovarian response -- Perinatal outcomes; Human reproductive technology -- Periodicals; Human embryo -- Periodicals; Reproduction -- Periodicals; 616.692
• DOI: 10.1016/j.rbmo.2020.03.010
• Languages: English
• ISSNs: 1472-6483

Abstract

Highlights: 1 ART pregnancies are characterized by an increased risk of complications 2 The number of collected oocytes is a potential surrogate of oocyte quality 3 The number of oocytes retrieved is not related to birth weight z-scores 4 Ovarian response is not related to adverse perinatal and obstetric outcomes Abstract: Research question: Is there an association between ovarian response and perinatal outcomes? Design: A retrospective, single-centre cohort study including all women undergoing their first ovarian stimulation cycle in a gonadotrophin releasing hormone antagonist protocol, with a fresh embryo transfer that resulted in a singleton live birth from January 2009 to December 2015. Patients were categorized into four groups according to the number of oocytes retrieved: one to three (category 1), four to nine (category 2), 10–15 (category 3), or over 15 oocytes (category 4). Results: The overall number of patients analysed was 964. No relevant statistical difference was found among neonatal outcomes across the four ovarian response categories. Neonatal weight (in grams) was comparable between all groups (3222 ± 607 versus 3254 ± 537 versus 3235 ± 575 versus 3200 ± 622; P = 0.85, in categories 1, 2, 3 and 4, respectively). No statistically significant differences were found among the ovarian response categories for birth weight z-scores (taking into account neonatal sex and delivery term). The incidence of pre-term birth and low birth weight was comparable across the different ovarian response groups ( P = 0.127 and P = 0.19, respectively). Finally, the occurrence of adverse obstetric outcomes did not differ among the ovarian response categories. Multivariate regression analysis revealed that the number of oocytes was not associated with neonatal birth weight. Conclusions: No association was found between ovarian response and adverse perinatal outcomes in antagonist IVF and intracytoplasmic sperm injection cycles. Future, larger scale and prospectively designed investigations are needed to validate these results.