The Facts About Bobbi Kristina Brown's Medical Condition

In the nearly three months since Bobbi Kristina Brown was found unresponsive in her bathroom, the medical details surrounding her condition have been murky – particularly as her family offers conflicting accounts of her current state.

On Monday, Brown's grandmother, Cissy Houston, told PEOPLE that her 22-year-old granddaughter has "global and irreversible brain damage".