Schwarzenegger Recovers After Emergency Heart Surgery

10:40 AM PT — Arnold’s people just told us the following … the procedure was “to replace a pulmonic valve that was originally replaced due to a congenital heart defect in 1997. That 1997 replacement valve was never meant to be permanent and has outlived its life expectancy, so he chose to replace it yesterday through a less-invasive catheter valve replacement. During that procedure, an open-heart surgery team was prepared … in case the catheter procedure was unable to be performed.”

The rep says Arnold’s recovering from surgery and is in stable condition.

Arnold Schwarzenegger has undergone emergency open-heart surgery … TMZ has learned.

Sources connected to Arnold tell TMZ, the 70-year-old Schwarzenegger went to Cedars-Sinai Thursday for a catheter valve replacement. We’re told the surgery is somewhat experimental and he developed complications.