- Associated Press - Monday, January 23, 2012

CHICAGO — Sen. Mark Kirk of Illinois could lose full use of his left arm and experience facial paralysis after a weekend stroke that required emergency surgery, but his physician said Monday the prospects for a complete mental recovery are strong.

Dr. Richard Fessler said it likely would be “very difficult” for the first-term Republican senator to regain movement in his left arm, and that his left leg and face also may be affected. Kirk was in intensive care at Northwestern Memorial Hospital, where he appeared to recognize those around him and was responding to verbal commands, Fessler said.

Though Fessler could not say when Kirk would be able to return to work, he described the senator as “young, very healthy and in good shape.”

Sen. Kirk’s job is cerebral, and I believe the functions required to do his job are going to be fine,” said Fessler, a neurosurgeon who removed a 4-by-8-inch piece of Kirk’s skull Sunday night to relieve swelling on his brain.

Kirk, 52, had reported feeling dizzy and checked himself into Lake Forest Hospital over the weekend before being transferred to Northwestern. Tests showed he had a tear in the carotid artery on the right side of his neck. Carotid arteries carry blood to the brain and carotid tears are a common cause of strokes in people in their 50s or younger.

Fessler said Kirk would undergo rehabilitation, but added that the “the prospects for his full physical recovery, particularly on the left side of his body, are not great.”

Dr. Joseph Broderick, a University of Cincinnati stroke expert, said that when removing part of the skull is required, “that is a pretty significant stroke” that likely has caused substantial damage.

The damage typically occurs when clots formed from a carotid artery tear lodge in the brain, depriving brain cells of oxygen. Brain cells then die and may fill with fluid, causing swelling. The process can take days or even weeks, he said.

“Those people almost always will have some type of deficit long-term. Some may get back to being functional, but some are left with very severe deficits,” Broderick said.

Kirk’s family said in a statement that he had “always shown great courage and resilience and we are confident that the fighter in him will prevail.”

“We are very grateful for the excellent treatment and care provided by the doctors and their medical teams … We are equally grateful for the love and support of our family and friends,” the family said.

Illinois Sen. Dick Durbin, a Democrat, said Monday he was shocked to learn of Kirk’s stroke because Kirk appeared to be a picture of health. A Kirk aide said the senator is a regular swimmer and has to pass medical checks every six months in the reserves.

West Virginia Sen. Joe Manchin, with whom Kirk planned to sit during Tuesday night’s State of the Union Address, issued a statement calling Kirk a “dear friend and truly a great American.”

He said he’s confident Kirk “will make a speedy recovery and I will do everything I can to support him and his family until he is able to join us back here in Washington.”

People can return successfully to high-profile jobs after serious brain injuries. Sen. Tim Johnson, D-S.D., suffered a brain hemorrhage in December 2006 and returned to the Senate the following fall. His speech was a bit slurred, and sometimes he used a scooter to get around. He later won re-election and chairs the Banking Committee.

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