London: Surgeons at a British hospital have successfully separated conjoined twin baby girls in a complex and extremely rare operation, the charity that funded the surgery said on Sunday.Sudan-born Rital and Ritag Gaboura are craniopagus twins, meaning they were born joined at the head.Conjoined twins are very rare and only around 5 percent of them are craniopagus. Experts say around 40 percent of those are stillborn or die during labor, and another third die within 24 hours. So for craniopagus twins to survive even beyond early infancy is a one in 10 million occurrence.Rital and Ritag, who will celebrate their first birthday next week, were so-called Total Type III Craniopagus twins, meaning that significant blood flowed between their brains -- presenting surgeons with a particularly difficult challenge.According to doctors who worked on the case, Ritag supplied half her sister`s brain with blood, whilst draining most of it back to her heart, therefore doing most of the work.This situation was life threatening because large dips in brain blood pressure can cause several neurological damage.
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