Before the car-wreck victim reached the emergency room, doctors, residents and nurses at Cedars-Sinai Medical Center knew what to expect by glancing at their smartphones. The details came in the staccato of text messages: A 35-year-old man had driven head-on into a bus. He suffered major chest injuries. His vital signs were crashing. This was not just another day in the hospital. It was a laboratory billed as the "OR of the future," an ongoing experiment aimed at breaking down barriers that bog down care through open communication, better use of technology and teamwork.