Is It Possible to Minimize Overdrainage Complications with Gravitational Units in Patients with Idiopathic Normal Pressure Hydrocephalus? Protocol of the Randomized Controlled SVASONA Trial (ISRCTN51046698)
2010
Overdrainage is a common complication observed after shunting patients with idiopathic normal-pressure hydrocephalus (iNPH), with an estimated incidence up to 25%. Gravitational units that counterbalance intracranial pressure changes were developed to overcome this problem. We will set out to investigate whether the combination of a programmable valve and a gravitational unit (proGAV, Aesculap/Miethke, Germany) is capable of reducing the incidence of overdrainage and improving patient-centered outcomes compared to a conventional programmable valve (Medos-Codman, Johnson & Johnson, Germany).
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