Joan rivers' husband cause of death

&#; -- Joan Rivers died in a New York City hospital Sept. 4 at the age of Now, there are some answers for what happened.

Rivers was sedated with propofol before she died of low blood oxygen during a procedure to treat voice changes and acid reflux, according to the New York City medical examiner.

Rivers lacked sufficient oxygen to her brain for a prolonged period of time, which caused brain damage, the medical examiner said.

Her heart had stopped after she was sedated with propofol and undergoing procedures to examine her condition.

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The medical examiner’s office said it found no obvious medical error and that the manner of death was “therapeutic complication,” indicating that death is an accepted possibility of the procedure she was undergoing.

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