The medical condition of Ariel Sharon further deteriorated Thursday, leaving the former prime minister in critical condition.
Sharon, 85, is hospitalized in critical condition in Tel Hashomer hospital in Tel Aviv, and has been comatose since January 4, 2006 when he suffered a brain hemorrhage.
The former PM's health took a turn for the worse last week, when he suffered renal failure and could not undergo dialysis due to the dangers the procedure could present given his fragile physical state.
Sharon has been comatose in the hospital for the past eight years. He has been getting medical care and receiving fluids through a feeding tube.
Last September, Sharon underwent abdominal surgery to correct a problem in his intravenous feeding system. The operation, which lasted an hour, was planned several months prior.
In January 2013, neurological scans demonstrated significant brain activity in Sharon's brain. During the two-hour fMRI scan conducted, researchers tested Sharon's response to various stimuli: family pictures, a recording of his son's voice, and human touch.
They said they were surprised to discover significant activity in relevant parts of his brain in response to all tests.