The authors describe a follow-up to a case of a 19-year-old female with shunted aqueductal stenosis who presented with low-pressure hydrocephalus during a shunt malfunction. Shortly after management with CSF drainage at negative pressure, a magnetic resonance elastography scan was performed and revealed very low brain stiffness (high compliance). Here we present the case of the same patient seen 2 years later, now 21 years old, who again received a magnetic resonance elastography scan after receiving treatment for another shunt malfunction, this time with high intracranial pressure. This scan revealed recovery of brain stiffness to a near normal value for the patients’ age. This observation suggests the low brain stiffness observed during the low-pressure hydrocephalus event is reversible. The authors discuss these findings in relation to biomechanical hypotheses of low-pressure hydrocephalus.

作者描述了一名 19 岁女性分流性导水管狭窄患者在分流器故障期间出现低压脑积水的病例的随访情况。在负压下进行脑脊液引流管理后不久，进行了磁共振弹性成像扫描，发现脑硬度非常低（高依从性）。在这里，我们介绍了 2 年后看到的同一名患者的病例，现年 21 岁，他在接受另一次分流故障治疗后再次接受了磁共振弹性成像扫描，这次是颅内压高。该扫描显示大脑僵硬恢复到接近患者年龄的正常值。这一观察结果表明在低压脑积水事件期间观察到的低脑僵硬是可逆的。