This randomized, double-blinded, cross-over study aim to evaluate the effects of shunt treatment in idiopathic normal pressure hydrocephalus (iNPH) by measuring cerebral ventricular volume and clinical symptoms at different shunt opening pressures. Further, proteins in the cerebrospinal fluid (CSF) will be compared before and after shunt surgery.
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Ventricular volume at different shunt settings (mL)
Timeframe: Assessed before surgery and at one, two and, three months and three months plus one day post surgery.
Time of "Timed Up and Go" test at different shunt settings
Timeframe: Assessed before surgery and at one, two and, three months and three months plus one day post surgery.
Time of 10m walking test at different shunt settings
Timeframe: Assessed before surgery and at one, two and, three months and three months plus one day post surgery.