Abstract
Purpose: To evaluate pregnancy outcomes following embryo transfer in patients with endometrial carcinoma (EMCA) or endometrial hyperplasia (EH) who elected for fertility-sparing treatment (FST). Methods: This retrospective cohort study at a large urban university-affiliated fertility center included all patients who underwent embryo transfer after fertility-sparing treatment for EMCA or EH between January 2003 and December 2018. Primary outcomes included embryo transfer results and a live birth rate (defined as number of live births per number of transfers).Results: There were 14 patients, 3 with EMCA and 11 with EH, who met criteria for inclusion with a combined total of 40 embryo transfers. An analysis of observed outcomes by sub-group, compared to the expected outcomes at our center (patients without EMCA/EH matched for age, embryo transfer type and number, and utilization of PGT-A) showed that patients with EMCA/EH after FST had a significantly lower live birth rate than expected (Z = -5.04, df =39, p < 0.01). A sub-group analysis of the 14 euploid embryo transfers resulted in a live birth rate of 21.4% compared to an expected rate of 62.8% (Z = -3.32, df = 13, p < 0.001).Conclusions: Among patients with EMCA/EH who required assisted reproductive technology, live birth rates were lower than expected following embryo transfer when compared to patients without EMCA/EH at our center. Further evaluation of the impact of the diagnosis, treatment and repeated cavity instrumentation for FST is necessary to create an individualized and optimized approach for this unique patient population
Costs of achieving live birth from assisted reproductive technology: a comparison of sequential single and double embryo transfer approaches