Doctors finished operating on Prime Minister Ariel Sharon on Friday after he was rushed back to surgery to stem fresh bleeding in his brain, Israeli television channels reported.
The operation lasted about three hours, public television and two commercial channels reported.
The privately-owned Channel 2 television and Website of the main Yedioth Ahronoth daily quoted hospital officials as saying that Sharon would now undergo a new CT (computed tomography) scan.
Sharon had been transferred to the second floor of the hospital, Channel 2 quoted sources inside the hospital as saying. The latest bout of surgery followed an earlier brain scan that detected "an area of bleeding".
Sharon is being treated at the Hadassah hospital in Jerusalem after suffering a massive stroke on Wednesday night.
Meanwhile, his doctors have been forced to fend off accusations that delays and medical misjudgment managed to worsen Sharon's plight.
Such accusations, plastered all over the local media, are all the more embarrassing in a country that can boast some of the most advanced medical care and hospital facilities in the world.
Several doctors have charged that too much time elapsed - over an hour - between first indications that the 77-year-old was suffering a second stroke at his desert ranch late on Wednesday and his admittance to hospital in Jerusalem.
Questions were also asked about why Sharon was allowed to spend the night at home on the eve of a heart procedure in Jerusalem to repair a small hole in his heart to prevent a repeat of a minor stroke that he suffered on December 18.
"I cannot understand how the prime minister could have been sent to stay in an isolated farm, more than an hour away from the hospital [that] he was supposed to be treated in, two weeks after a stroke and one night before a heart procedure [that] he was afraid of," one nameless hospital director told the Ha'aretz newspaper.
It took more than an hour for Sharon to reach Jerusalem's Hadassah hospital by ambulance. For stroke victims, every lost minute can be vital.
Sharon could have been transferred more quickly to hospital, either by being driven to the Soraka in Beersheba, much closer to his farm in southern Israel, or by being airlifted to the Hadassah.
Sharon's doctors have said that the prime minister himself opted to be driven to Jerusalem, where he was treated for his minor stroke, that a helicopter was not immediately available and the ambulance able to give top-notch emergency care.
Not content to stay silent on an event commanding blanket news coverage in Israel, doctors have also criticized the treatment itself, in particular injections of blood-thinning agents and the dosage of such medicines.
"I also have questions about the dosage of blood-thinning medication he received. My feeling is that Sharon did not get the best medical treatment he deserved," Ha'aretz quoted its nameless hospital doctor as saying.
Such medicines were administered to avoid a recurrence of the first stroke, caused by a clot in a blood vessel, but increased the chance of a hemorrhage.
Other experts have also drawn attention to psychological conditions in the run-up to his collapse as police re-opened an inquiry into whether Sharon's family received a $3 million bribe.
"Ariel Sharon should have been forced to rest after the first stroke and we were wrong to present the entire matter as insignificant," said medical professor Yonathan Levy.
After the first stroke, Sharon went back to a highly pressured schedule and the day before the second stroke he was put under heavy stress by the re-opening of the investigation into illegal fundraising for his election campaigns.
Apparently he did not want to give the impression, less than three months before a general election, that his new Kadima party was being led by a dangerously ill man.
"I'm going there tomorrow for catheterization anyway, why should I go now?" Sharon was quoted as telling a paramedic late on Wednesday.
While in the ambulance Sharon apparently thought there was no reason to go to hospital and told his personal doctor: "Now that you have seen me, can I go back to the farm," a request vetoed by his doctor.
"The prime minister received the most appropriate treatment for the medical condition in which he found himself," said Hadassah director general Shlomo Moryussef. "He was treated by the best experts at Hadassah and we made every effort to consult with experts from other places."
Sharon's neurosurgeon Felix Umansky also refuted the idea that more could have been done.
"He arrived conscious. The deterioration took place at the hospital. If he had arrived by helicopter it would not have changed the situation," he was quoted as saying.
Sharon op over, docs fend off accusations
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