this is a topic that has been hotly debated over the years. The rationale behind performing a biopsy or a quick scraping of the uterus prior to IVF is that the healing that follows the scraping improves the immune profile.
2 aprroaches hve been takent to achieve this : the first is to do an endometrial biopsy on day 21 the cycle preceding the IVF cycle , the second approach is to do a biopsy on the day of egg retrieval. A total of 5 well designed studies was analyzed by the physicians from Cochran database. the Cochrane Database is a non for profit. " Cochrane Reviews are unique because they are both produced by, and are
relevant to, everyone interested in the effects of human health care.
Based on the best available evidence.........Practitioners can
find out if an intervention is effective in a specific clinical context."
The result of the review is that if the "scraping" was performed at time of retrieval , this resulted in decreased pregnancy rates . If the procedure was performed the preceding cycle resulted in increased pregnancy and increased live birth rates.
Endometrial Injury in the luteal phase of the cycle preceding IVF seems to improve IVF outcome , this procedure can
be offered to increase chances for pregnancy when previous IVF attempts
You can locate the study here
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