Minor head trauma: Is computed tomography always necessary?
Routine CT of the head in patients with history of LOC/amnesia but no symptoms or signs of depressed skull fracture has minimal clinical value and is not warranted. Patients with symptoms of head injury or apparent depressed skull fracture should undergo head CT because a small number will require surgery.
These findings demonstrate that methadone and morphine produce similar myocardial IS-sparing effects that are delta-opioid receptor mediated and that are dependent on the duration of myocardial ischemia.