Dantonio’s wife drove him to Sparrow Hospital’s emergency room soon after, where he was treated immediately. D’Haem performed a cardiac procedure on Dantonio that restored blood flow to the heart muscle, according to a statement released by the MSU Athletics Department.

“He is young, in excellent shape, and the damage to his heart was minimal,” D’Haem said in the statement. “Coach Dantonio made the right decision to come in and get checked out immediately.”

While Dantonio is recovering, offensive coordinator Don Treadwell will manage the responsibilities of head coach, MSU Athletics Director Mark Hollis said during a press conference Sunday. Hollis said men’s basketball head coach Tom Izzo assisted in deciding who would take over head coaching duties.

Treadwell said during the conference that he doesn’t expect any issues maintaining the beliefs and philosophies Dantonio has instilled with the team because the Spartans have had the advantage of a lack of attrition among assistant coaches during Dantonio’s tenure at MSU. The only coach to leave since 2007 was Dan Enos, who took the head coaching job at Central Michigan in January.

“Football-wise, certainly as (Hollis) mentioned, our thoughts go out to Coach Dantonio,” Treadwell said at the press conference. “One of the things he has certainly done is he has put in place a tremendous program. There’s been a model we’ve been following for four years here at Michigan State, three years previous to that (at Cincinnati). It lends itself to the fact that there’s some great carryover that’s already in place.”

Treadwell said players were informed early Sunday afternoon of Dantonio’s condition.

“I think they’re handling it as well as they can,” Treadwell said of the players’ reaction to the news. “They love their head coach. We know that. It’s our job as assistant coaches to keep them moving forward and focused on task.”

Hollis, who said he visited Dantonio from 2:30 a.m. to 5 or 6 a.m. Sunday at Sparrow Hospital, asked that Dantonio does not receive any visitors while he rests at the hospital. However, Sparrow Hospital offers an e-card service through which messages can be left with patients. The service can be found under the online services tab at sparrow.org.

“He is our head coach (and) will remain our head coach throughout this whole process.” Hollis said. “This is a time for the Spartan Nation to come together, to rally, not only for Coach Dantonio and his family, but in everything that we’re doing here at Michigan State. … We know Coach will return to the sidelines very soon.”