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ARTICLE AD BOX
ABSTRACT
Objective
The objective of this study is to evaluate the impact of comprehensive individualised interventions on the clinical outcomes of patients with recurrent implantation failure (RIF), as few studies have evaluated their effectiveness.
Design
Retrospective cohort study.
Setting
Tertiary hospital, from June 2016 to December 2022.
Population
Overall, 1546 patients with RIF underwent endometrial biopsy during implantation.
Methods
The comprehensive individualised interventions were conducted on the basis of the endometrial histological dating, endometrial CD138 count, endometrial immune-cell proportion and endometrial microbiota testing.
Main Outcome Measures
Cumulative ongoing pregnancy rate (cOPR).
Results
The median number of failed transfer cycles was 3 (range, 2–12), and the cOPR was 58.0%. The rates of window of implantation (WOI) displacement, CD138 positivity, imbalanced endometrial immune-cell proportion, endometrial microbiota testing, multiple factors and unexplained RIF were 34.0%, 9.3%, 7.5%, 4.1%, 32.4% and 12.7%, respectively. The cOPRs of the individualised frozen embryo transfers in patients having RIF with WOI displacement, WOI CD138 positivity, imbalanced endometrial immune-cell proportion, endometrial microbiota testing, multiple factors and unexplained RIF were 64.1%, 57.6%, 55.1%, 38%, 64.2% and 34.5%, respectively. After adjusting for basic characteristics through logistic regression analysis, the cOPRs of the WOI displacement group, WOI CD138 positive group and immune-cell proportion imbalanced group remained higher than that of the unexplained RIF group. However, the cOPR was comparable between the endometrial microbiota testing and unexplained RIF groups.
Conclusion
Comprehensive individualised interventions may improve clinical outcomes for patients with RIF, warranting further investigation.
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