Howie Mandel Hospitalized for Irregular Heartbeat

By Marisa Laudadio

Tuesday January 13, 2009 01:30 AM EST

Howie Mandel

Mitch Haaseth/NBC

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TV host Howie Mandel was hospitalized Monday with an irregular heartbeat, but his condition was not believed to be serious, his rep tells PEOPLE.

"Doctors expect him to be released and back to work [Tuesday]," rep Lewis Kay says.

"He did not have a heart attack," adds Kay, refuting reports.

The Deal Or No Deal host, 53, was in Toronto to shoot his new NBC show Howie Do It.