No abstract

In both midbrain and pons, the portion of the rupture of mesencephalic artery was at the point of the bifurcations of the small branches of the medial perforators. Present writers believes that the brainstem hemorrhages which are located in the midline of the mesencephalic and pontine tegmentum are frank rupture of the medial perforators due to mechanical distress according to the deformity of the brainstem.

Appliance of hyperbaric environment to the medical treatment has been encouraged with some recent trials on neurosurgical disease. We have treated 37 cases of various kinds of intracranial disease and the results were satisfactory. In increasing the pressure we used only air mostly but sometimes with 02 respiration. Among these cases, 11 were of apoplexy containing 8 hypertensive intracerebral hemorrhages, in three of which surgical evacuation of the clot was done, 1 cerebral infraction and 2 vascular occlusion. The rest were of head injury of which 7 had intracranial hematoma, which was evacuated, 6 cerebral contusion and 13 post-traumatic sequelae. Clinical results: (1) Hyperbaric therapy helps improve the clinical symptoms and EEG. (2) Two of 5 non-operated cases of hypertensive intracerebral hemorrhage died leaving defect in consciousness and palsy unimproved. They had pons hemorrhage. (3) One of the 3 operated cases of hypertensive intracerebral hemorrhage did not make improvement in palsy and aphasia. (4) In the remaining cases of apoplexy it was effective on disturbances of movement, speech, memory and joint