THE three cases of head injury described in this communication are of great interest and of sufficient rarity to merit their publication. Apart from this, each of these patients was admitted to a general surgical service and might well have had to be treated without the benefit of a neurosurgical opinion. The post-operative management, including the use of chlorpromazine and induced hypothermia in the first case, the surgical procedure adopted in the second, and the diagnostic uncertainty of the third case are of the utmost instructive value to a general surgeon as well as to a neurosurgeon. The experience with the f i s t case brings forth the lesson that even the most severe head injury should not be abandoned and that ' conservative ' therapeutic measures and skilful nursing may at the end be rewarded.
THE USE OF CHLORPROMAZINE AND INDUCED HYPOTHERMIA IN HEAD INJURIESThe popularization of induced hypothermia by the French workers Laborit and Huguenard (1954) has opened new fields for laboratory research and for its experimental application into clinical practice. Woringer, Schneider, Baurngartner, Thomalsky, and Scheidegger (1954) reported their experience with induced hypothermia in 19 cases of brain-stem injury selected for their gravity from 270 cases of head injury with unconsciousness.
BRAIN-STEM INJURYT h e patient described below suffered from a severe primary brain-stem lesion. This case illustrates certain hitherto unreported observations on the use of chlorpromazine and cold sponging in the management of post-traumatic hyperthermia, and on their effect on decerebrate posture. T o a lesser extent it illustrates the full technique of induced therapeutic hypothermia.Case I.-A boy, aged 6 years, was knocked down by a motor cycle and admitted to The Liverpool Neurosurgical Unit on Sept. 3, 1954, within one hour of the accident.O N ExAMINATroN.-Subgaleal haematoma and superficial abrasions were visible over the forehead. Nuchal muscles were transected on the left side. In the depth of the wound there was a comminuted fracture of the occipital bone. He was unconscious. On the slightest stimulation all limbs assumed decerebrate posture but between these spasms spontaneous movements were observed. Plantar responses were bilaterally extensor. The pupils were medium in size and reacted to light. Optic fun& were normal. The pulse was rapid and thready. Blood transfusion was commenced and the patient was taken to the operating theatre.AT OPERATION (Ancesthetist, Dr. I. Francis).-Midline cerebellar incision was used meeting the traumatic wound about its centre. The contaminated skin and muscle were narrowly excised and the fracture was exposed. The comminuted fragments were nibbled away as far medially as the foramen magnum and laterally to the mastoid process. About 2 cm. of the sigmoid sinus were thus exposed and it was intact. The dura over the left cerebellar hemisphere was found to be punctured by the sharp edge of a bony fragment. The cerebellar cortex showed a small area of contusion. The dura was sutur...