In this Sept. 25, 2013 file photo, Sen. John Boozman (R-Ark.) leaves the Senate floor at the U.S. Capitol. (AP/Scott Applewhite.)

Sen. John Boozman (R-Ark.) remains hospitalized in Arkansas following emergency heart surgery this week but has been moved into "a private recovery room," according to his office.

Aides updated reporters Thursday afternoon, saying that the senator remains in stable condition since the surgery on Tuesday.

"His family, who continues to be with him at the hospital, has indicated that doctors are amazed at how quickly Boozman is recovering from the surgery," a statement from his office said. "As he continues to regain strength, Boozman has been conversational with family for long stretches of the day and walking frequently with the aid of medical staff."

The 63-year-old senator was taken to the hospital Tuesday morning by his wife, Cathy, after complaining of pain in the chest and shoulder. Doctors eventually diagnosed him with acute aortic dissection and he underwent hours-long surgery.

In a statement, the Boozman family said: “We appreciate the prayers, kind words and well-wishes that have come from Arkansans and people all across the country. Our number one priority is making sure John makes a full recovery. We are grateful for the excellent care the doctors, nurses and medical staff are providing. They are amazed at how well he has responded and we are anxious for him to begin the next phase of recovery. We know that if John had it his way he would be right back on the road in Arkansas, so the difficult part will be making sure he gets the rest he needs to get better.”