• Dimitrios Pachatouridis, George A Alexiou, Andreas Zigouris, Evaggelos Michos, Dimitrios Drosos, George Fotakopoulos, and Spyridon Voulgaris.
• University Hospital of Ioannina, Department of Neurosurgery, Ioannina, Greece.
• Turk Neurosurg. 2014 Jan 1; 24 (6): 855-8.

AimWe set out to investigate the optimal timing for shunt placement in patients with hydrocephalus after decompressive craniectomy (DC).Material And MethodsWe studied 63 consecutive patients that underwent DC because of traumatic brain injury, middle cerebral artery infarct or intracerebral hemorrhage. Hydrocephalus was diagnosed in 23/63 patients. The 23 patients were divided into two groups. The first group (A) consisted of 11 patients in whom a ventriculoperitoneal shunt was placed simultaneously or before cranioplasty. In the second group (B) of 12 patients, we performed cranioplasty and a ventriculostomy with monitoring of intracranial pressure was placed simultaneously. After 3 to 5 days, a ventriculoperitoneal shunt was placed with the most appropriate opening pressure.ResultsIn group A, nine out of the eleven patients experienced complications, mainly hygromas or hematomas that required reoperation. In group B, none of the patients was reoperated. The use of programmable valves allowed for non-invasive revision of the opening pressure when required.ConclusionCranioplasty and ventriculostomy followed by a second stage placement of a ventriculoperitoneal shunt are associated with fewer complications in the treatment of hydrocephalus after DC.

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