Ach, this doesn't sound good:

The huge stroke suffered last night by Prime Minister Ariel Sharon of Israel, caused by uncontrolled bleeding into the brain, is likely to be devastating and nearly impossible to treat because Mr. Sharon, 77, is taking blood thinners, neurologists say.

Although Mr. Sharon was taken to surgery to try to remove the blood pouring into his skull, it was a desperate move, neurologists said.

Hemorrhages in the brain while the patient is taking blood thinners "are usually devastating events," said Dr. Matthew E. Fink, chief of the Division of Stroke and Critical Care at NewYork-Presbyterian Hospital/Weill Cornell Medical Center. "This sounds really terrible."

Though anything is possible....