My IVF incubator is late….now what?

Categories: Practice Tips
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Published on: April 10, 2018

By Jon Schmidt (Trans Ova Genetics)

An unfortunate reality with IVF is the occasional need to utilize commercial shipping companies in the transportation of oocytes to and embryos from the IVF lab.  Many of us who work with IVF shipments have experienced a delayed, lost, or cold incubator.  These are unfortunate events that can be catastrophic to results and end in frustrated lab staff, transfer teams, and clients.  Below are a few suggestions on how to handle incubators that are compromised in transit while embryos are going back to the practitioner or client’s farm.

d0 = OPU day
d1 = fertilization day
d7 = normal transfer day

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Evidence-based ET: What is the best synchrony between IVP embryos and recipients?

Categories: Evidence-Based ET
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Published on: September 10, 2014

Evidence-based ET

John F. Hasler

Note: I have been using subjects suggested by our board of directors for this column for the past two years.  I would be happy to attempt covering any subjects that the membership might suggest. Let me hear from you!

What is the best synchrony between IVP embryos and recipients?

There is a great deal of evidence that synchrony between the age of in vivo-derived embryos and the day of the estrous cycle in recipients at the time of transfer is affected very little, if at all, when synchrony is within the three day period of 0, plus one or minus one day (zero, meaning day of estrus and age of embryo are the same).  Consequently, the pregnancy rate is not affected when day 7 embryos are transferred into day 6, 7, or 8 recipients.  This holds true for both fresh and frozen in vivo-derived embryos (Hasler, 2001).

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