Posted by on June 16, 19100 at 11:05:05:
In Reply to: chromosome problems-q for dr. posted by elana on June 11, 19100 at 20:22:14:
: can a patient 43 years old who had 20 eggs, with 5 to blast, take any comfort at all that the one that actually implanted could be chrom. normal if it lasted that long in the dish? Could ithave a better chance of being normal than a natural pregnacy (vs. IVF)
Elana, congratulations!
Because many chromosomally abnormal embryos will arrest development prior to the blastocyst stage, we do consider blastocysts to have been somewhat naturally selected out for potentially higher quality. Having said that, unfortunately not all blastocysts are genetically normal, and still exhibit higher rates of chromosomal abnormalities in patients over 40. Your concern is certainly understandable. I imagine your OB has recommended an amniocentesis...be positive, enjoy, and good luck!