PENSACOLA An 8-year-old boy attacked by a shark over the weekend suffered harm to virtually every organ because of massive blood loss and may have brain damage, a doctor said Monday. Jessie Arbogast's arm - reattached after it was pried out of the shark's mouth and delivered to surgeons - was healing well. But according to an AP report, the boy remained in critical condition Monday after at least six surgeries to repair damage from Friday night's attack. Dr. Rex Northup said Jessie arrived at the hospital with no blood pressure, no pulse and damage to "literally his entire body."

"Because of the shark injuries and loss of blood associated with that, his brain did go through a period of time with a very low amount of blood flow," Northup said. "If we can get another several days behind us where things don't deteriorate, we'll be happy with that."

Dr. Jack Tyson, a trauma surgeon at Baptist Hospital where the arm was reattached, said it was clear the boy was not brain dead after he and other doctors changed the dressings on his wounds and examined him Monday night. Northup said a new brain wave study showed he was relatively stable.

"It has the appearance at this point in time of perhaps someone who is in a deep sleep, that there plainly is still electrical activity," Northup said. "He does seem to respond to things that are painful or bothersome to him."

Jessie, who has been undergoing dialysis at Sacred Heart Children's Hospital since he went into kidney failure Sunday, has not been able to talk with family members.

"He has done a little bit of a spontaneous eye opening and blinking of his eyes, but at this point is not coherent," Northup said.

Northup said circulation in the reattached arm and in the severely gashed leg was good, though he said that the boy likely would be unable to use the arm for up to 18 months.

"By no means is he out of the woods," said Sacred Heart spokesman Clay DeStafano. "There's still the possibility that he won't survive at all."

The Ocean Springs, Miss., boy was attacked Friday evening in the surf at the Fort Pickens section of the Gulf Islands National Seashore in the Florida Panhandle.

His uncle, Vance Flosenzier, of Mobile, Ala., wrestled the 7-foot-long bull shark to shore with help of another beachgoer, said Megan MacPherson, a spokeswoman for Flosenzier. She said Flosenzier does not want to comment or release any information about himself and that he did not know the identity of the person who helped him.

"He's a big guy. He got hold of it and tossed it ashore," district ranger supervisor John Bandurski said of Flosenzier.

Ranger Jared Klein then shot the shark four times with a 9mm pistol and pried its jaw open with a police baton. Volunteer firefighter Tony Thomas used a clamp to pull the boy's severed arm from the shark's gullet.

The boy was airlifted to Baptist Hospital about 30 minutes after the attack, said Tyson, who met him in the emergency room.

"In terms of circulating blood, I think he was fairly empty," Tyson said. "Friday night I had a dead child."

Tyson said Flosenzier and his wife, Diana, were heroes because they immediately tied off the boy's wounds with towels and performed cardiopulmonary resuscitation, giving him a chance to survive injuries that ordinarily would have been fatal.

According to the International Shark Attack File in Gainesville, 34 of the nation's 51 reported shark attacks last year were in Florida. One of the attacks was fatal: A 69-year-old man was killed by a bull shark near his St. Petersburg home last August.

There were 79 shark attacks worldwide last year, including 10 that were fatal. File officials said it is the highest number since the organization began keeping records in 1958.