Epidural anesthesia in cardiac surgery: is there an increased risk?
By following certain guidelines, the risk for the development of epidural hematoma is not increased in patients undergoing epidural anesthesia during cardiac surgery.
The sex ratio fell significantly after 1980 when ultra sound machines for antenatal sex determination became available. The sex ratio in second children if the first was a girl was even lower. Sex selective abortions after antenatal sex determination are thus implicated. However data on second children especially the excess of girls born to mothers who have a previous boy seen in the decade before the advent of antenatal ultra sound machines, suggests that other means of sex selection are also used.