Conditional and cumulative live birth rates after blastocyst transfer

AbstractObjective We aimed to investigate live birth rate (LBR), cumulative (CLBR) for consecutive fresh and frozen-thawed in vitro fertilization (IVF) cycles, CLBR after an entire IVF programme involving multiple ovarian stimulations using blastocyst transfer only. Study design From January 1 st 2014 December 31 2018, we included women aged 18–45 years who initiated or intracytoplasmic sperm injection at Aagaard Fertility Clinic, Denmark. The primary outcome was birth, secondary outcomes were a positive hCG blood test ongoing pregnancy confirmed by ultrasonography. All proportions estimated transferred cycles with 95 % confidence intervals (CI). used conservative strategy, assuming that none of the did not return further treatments had birth. Results 871 contributed 2236 initiated/1670 and/or cycles. LBRs first 22.8 (95 %-CI: 19.8−26.0) 35.7 31.4−40.2) respectively. 30.6 26.4−35.1) 31.7 27.4−36.3) CLBRs 18.2 16.2−20.3) 29.7 26.6−32.9) 25.5 22.6−28.5) 26.4 23.5−29.6) For 436 found 64.0 59.3−68.5). Conclusion Compared other studies cleavage stage transfer, our study presents considerable effect success when In clinical setting, blastocysts seems be viable method.