Abstract
Purpose
An attempt to define recurrent implantation failure.
Methods
Literature review.
Results
Numerous definitions of recurrent implantation failure exist. The complexity and redundancy of the process of implantation makes a single definition difficult to determine.
Conclusion
Each center must establish a definition of recurrent implantation failure based upon the data from that center. The definition of RIF used in our program requires the transfer of ≥8, 8-cell stage embryos or ≥5 blastocyst embryos.
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Implantation failure must be defined by each IVF center based upon the data from that center.
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Rinehart, J. Recurrent implantation failure: definition. J Assist Reprod Genet 24, 284–287 (2007). https://doi.org/10.1007/s10815-007-9147-4
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DOI: https://doi.org/10.1007/s10815-007-9147-4