Cardoso E R, Schubert R
Departments of Neurosurgery, Brookdale University Hospital and Medical Center, Brooklyn, New York 11212, USA.
J Neurosurg. 1996 Dec;85(6):1143-7. doi: 10.3171/jns.1996.85.6.1143.
The authors report three adult patients who developed a symptomatic extraaxial collection of cerebrospinal fluid (CSF) after an intracranial hemorrhage. The fluid shifted from the extraaxial into the ventricular space as the patients' symptoms progressed. The symptoms resolved after placement of a ventriculoperitoneal shunt. External hydrocephalus, which is frequently observed in children, had not yet been described in adults. It is important to differentiate chronic subdural collections from external hydrocephalus, because ventricular CSF shunting increases the former while it is the treatment for the latter. The authors believe that symptomatic extraaxial fluid collections developed in these three adults during the early phase of posthemorrhagic hydrocephalus because the ventricles presented great resistance to distention at the onset of hydrocephalus. Animal experiments have led to the same result.
作者报告了3例成年患者，他们在颅内出血后出现了有症状的脑外脑脊液（CSF）聚集。随着患者症状进展，液体从脑外转移至脑室间隙。在置入脑室-腹腔分流管后症状缓解。外部性脑积水在儿童中较为常见，在成人中尚未见报道。将慢性硬膜下积液与外部性脑积水区分开来很重要，因为脑室CSF分流会加重前者，而它却是后者的治疗方法。作者认为，这3例成年人在出血后脑积水的早期阶段出现有症状的脑外积液，是因为脑积水开始时脑室对扩张呈现出很大阻力。动物实验也得到了同样的结果。
