Resort where Michael Jackson was injured is 2½-hour drive from the center . No helicopter medical services are available . With epidural hematoma , survival time without treatment is about 30 minutes . Some Canadian trauma experts have called for air ambulance since 1990s .
Resort where Natasha Richardson was injured is 2½-hour drive from trauma center . No helicopter medical services are available . With epidural hematoma , survival window without treatment is about 90 minutes . Some Canadian trauma doctors have argued for air transport since 1990s .