Fertility clinic’s embryo tank had prior trouble


An Ohio fertility clinic says it had been experiencing problems with a storage tank for several weeks before it malfunctioned in early March and ruined more than 4,000 eggs and embryos.

A letter sent to patients by University Hospitals in suburban Cleveland says the problem forced the clinic’s staff to manually fill liquid nitrogen into the tank to keep the embryos frozen.

The letter released Tuesday says the hospital suspects this contributed to the failure.

University Hospitals also says an alarm system was turned off on a storage tank should have alerted staff to changes in the temperature on March 4.

It says it’s unlikely any of the 4,000 eggs and embryos are viable.

The hospital system’s chief executive said that they failed the clinic’s patients and apologized.

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