How long does oxygen deprivation in newborns take to cause brain damage?

Neonatal hypoxia can usually cause brain damage in about 3 to 6 minutes.
Hypoxia in newborns is often caused by abnormal fetal position, abnormal delivery, umbilical cord prolapse, intrauterine infection, etc. If no timely treatment is taken, usually in about 3 to 6 minutes, it will easily lead to brain damage in newborns, and after the brain cells have been severely damaged, it is easy to develop mental retardation, motor disorders and other sequelae.
Therefore, when a newborn baby suffers from hypoxia, it is necessary to carry out emergency resuscitation at the first time, give the newborn baby oxygen treatment in time, and closely observe the newborn baby’s physical changes, and if necessary, it may be necessary to cooperate with the high-flow oxygen, balloon ventilation and other treatments.
If cerebral hypoxia occurs after the birth of the newborn, the follow-up can improve the cranial MRI and other tests to assist in the diagnosis, and if the sequelae can be actively carried out rehabilitation.