Looking past the appearance: a comprehensive description of the clinical contribution of poor-quality blastocysts to increase live birth rates during cycles with aneuploidy testing

Study question: Which are the clinical benefits and risks of including poor-quality blastocysts (PQBs) in the cohort of biopsied embryos during a cycle with preimplantation genetic testing for aneuploidies (PGT-A)? Summary answer: PQBs show a worse prognosis with respect to sibling non-PQBs, but their clinical use allows an overall 2.6% increase in the number of live births (LBs) achievable after PGT-A. What is known already: PQBs