His fight for life goes on. But for all those praying for Ariel Sharon’s recovery, there has been a glimmer of hope from the Hadassah Hospital in Jerusalem. Emergency surgery has stopped renewed bleeding in the Israeli prime minister’s brain. And a post-operative scan shows what is being described as “significant improvement.”The latest update was delivered by the hospital director who said cranial pressure had been released. Dr Shlomo Mor-Yosef stressed however that the premier remains in a critical but stable condition. He was speaking amid fears that even if he does pull through, the 77-year-old’s faculties could be seriously impaired, making a return to work impossible. After a minor stroke last month, Ariel Sharon made a swift return to politics. But on Wednesday, he suffered a massive stroke and, after surgery, was put in a medically-induced coma. The Israeli leader’s two sons as well as close aides and friends have been maintaining a vigil at his bedside. Today’s emergency surgery was needed after a brain scan showed heightened pressure and new bleeding. Late last year Ariel Sharon quit the right-wing Likud Party to form a new centrist political group, Kadima. His illness comes as Israel prepares for an election, which the prime minister had been widely tipped to win.