Introduction of the single-lumen oocyte retrieval needle in an assisted reproductive technology center: Propensity score matching analysis of grouping

Oocyte retrieval using a single-lumen aspiration needle not only reduced the procedure duration but also increased the number of oocytes retrieved and the number of normal zygotes (2-PN). Therefore, the single-lumen aspiration needle exhibits higher efficiency in oocyte retrieval and is more affordable than the double-lumen aspiration needle.