RESUMEN
OBJECTIVE: To assess whether the change in embryo morphology from precryopreservation to postthaw is associated with the embryo transfer success rates in single euploid embryo transfer cycles. DESIGN: Retrospective cohort study. SETTING: Academic affiliated fertility clinic. PATIENT(S): Patients who underwent a single euploid embryo transfer cycle from September 2016 to April 2022 were included. A decision support tool was used to assign each embryo a reproductive potential score on the basis of the day of biopsy, expansion, and grade of trophectoderm and inner cell mass at the time of cryopreservation and after thaw. Embryos were divided into 4 groups: group 1 included embryos with the same score after thaw (reference); group 2 included those with a higher score; group 3 included those with a lower score; and group 4 included those that did not re-expand after thaw. INTERVENTION(S): No interventions administered. MAIN OUTCOME MEASURE(S): The primary outcome was the live birth rates (LBRs) per embryo transfer. The secondary outcomes included the chemical pregnancy, clinical pregnancy, and clinical pregnancy loss rates. Comparative statistics and univariate analyses were performed using the Kruskal-Wallis and χ2tests. Multivariate logistic regression fitted with generalized estimating equation was performed to compare the odds of live birth between groups. RESULT(S): A total of 7,750 embryo transfers performed for 4,613 patients met inclusion criteria: 5,331 in group 1; 486 in group 2; 1,726 in group 3; and 207 in group 4. In the univariate analysis, there was a statistically significant difference in the LBR between groups 1, 2, 3, and 4 (55.8% vs. 51.4%, 47.5%, and 26.6%). Logistic regression controlling for oocyte age, antimüllerian hormone, body mass index, endometrial thickness, year of embryo transfer, time from thaw to final grading, and embryo score before cryopreservation showed significantly lower odds of live birth when the embryo was downgraded (odds ratio [OR], 0.70; confidence interval [CI], 0.62-0.79) or did not re-expand (OR, 0.36; CI, 0.26-0.51) than those with no change in score. When controlling for all variables, there was a significant increase in the odds of live birth between embryos that had a higher score after thaw and those without a change (OR, 1.42; CI, 1.14-1.76). There was no significant difference in the clinical pregnancy loss rate among the 4 groups. CONCLUSION(S): The change in the quality of the embryo after thaw is an important factor in embryo transfer success. In an adjusted analysis, the chemical and clinical pregnancy rates and LBR per embryo transfer all significantly decrease in embryos that were downgraded or did not expand on the day of single euploid embryo transfer. Embryos that re-expand and have improved quality after thaw have the highest odds of live birth.
RESUMEN
Little is known on why adherence to follow-up care in childhood cancer survivors (CCS) is lacking. This study characterized barriers to adherence to follow-up care among CCS, identified sociodemographic correlates of barriers, and examined whether barriers to follow-up care relate to health-related quality of life. Adult CCS (N=84) were anonymously surveyed via REDCap using the Barriers to Care Questionnaire (BCQ) and the Quality of Life Scale-Cancer Survivor (QOL-CS). Both descriptive and correlation analyses were conducted. The median BCQ total score was 88.5 (interquartile ranges:78.4 to 95.7), with the greatest barriers reported in the Skills (eg, ease of navigating the healthcare system) and Pragmatism subscales (eg, cost). There was a statistically significant correlation between the BCQ total score and the QOL-CS total score (rs=0.47, P <0.0001) and the physical, psychological, and social QOL-CS subscales (all P 's<0.05). The results found that barriers to follow-up care for CCS are mostly related to cost and appointment logistics, and that more barriers to care is associated with lower health-related quality of life among CCS. Identifying barriers to follow-up care is the first step in improving adherence, which would allow for earlier detection of late effects of cancer therapy and thereby result in reductions in morbidity and mortality.
