Leonard Slatkin has withdrawn from the Los Angeles Philharmonic concerts that he was to have conducted on Dec. 3 and 4, part of the orchestra's West Coast/Left Coast festival. Slatkin, now music director of the Detroit Symphony, suffered a heart attack on Nov. 1.
Here's the L.A. Phil release: "After consultation with his doctors, Conductor Leonard Slatkin has chosen to undergo three weeks of additional precautionary cardiac treatment necessitating the cancellation of his scheduled performances with the LA Phil on December 3 and 4. Philharmonic Creative Chair John Adams will replace him in Thomas Newman’s It Got Dark and Mason Bates’ Liquid Interface, and Jayce Ogren will lead Goldsmith’s Music for Orchestra and Waxman’s Tristan and Isolde Fantasy. The program remains the same."
If you don't know who Jayce Ogren is (I didn't), he just completed a stint as the Cleveland Orchestra's assistant conductor (here's his official BIO).
Here's a LINK to the LAPO Web site on the two concerts.