Required number of blastocysts transferred, and oocytes retrieved to optimize live and cumulative live birth rates in the first complete cycle of IVF for autologous and donated oocytes
Abstract
Purpose: To investigate live birth rate (LBR) and cumulative live birth rate (CLBR) to achieve the first newborn per blastocyst transferred and oocyte retrieved in the first complete IVF cycle of autologous and donated oocytes and identify the possible success factors.
Methods: This was a retrospective cohort study of a private IVF center. There were 1867 cycles, 1241 of which were fresh transfers and 626, their subsequent thawing transfers.