Houtteville J P, Toumi K, Theron J, Derlon J M, Benazza A, Hubert P
Department of Neurosurgery, CHU Caen, France.
Br J Neurosurg. 1988;2(3):357-67. doi: 10.3109/02688698809001007.
Interhemispheric subdural haematoma (ISH) is a rare complication of head injury with only 19 cases reported since 1940, but it may also occur spontaneously (three cases). In both circumstances, clotting disorders are frequent (six cases). We have recorded seven cases (five traumatic, two spontaneous). Classically ISH is due to tearing of bridging veins or cortical contusions. In one of our cases, it was due to arterial bleeding from a pericallosal branch. CT scan shows that ISH may extend above the tentorium and on the hemispheric convexity. Mortality is high (35%). The best operative procedure is parasagittal craniotomy. Chronic interhemispheric subdural haematomas also occur.
大脑镰旁硬膜下血肿（ISH）是头部损伤的一种罕见并发症，自1940年以来仅报告了19例，但也可能自发发生（3例）。在这两种情况下，凝血障碍都很常见（6例）。我们记录了7例（5例创伤性，2例自发性）。典型的ISH是由于桥静脉撕裂或皮质挫伤所致。在我们的一个病例中，是由于胼周分支动脉出血引起的。CT扫描显示ISH可延伸至小脑幕上方和大脑半球凸面。死亡率很高（35%）。最佳手术方法是矢旁开颅术。慢性大脑镰旁硬膜下血肿也会发生。
