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  • Title: Arterial blood pressure vs intracranial pressure in normal pressure hydrocephalus.
    Author: Eide PK, Park EH, Madsen JR.
    Journal: Acta Neurol Scand; 2010 Oct; 122(4):262-9. PubMed ID: 20070274.
    Abstract:
    OBJECTIVE: To characterize the association between arterial blood pressure (ABP) and intracranial pressure (ICP) in idiopathic normal pressure hydrocephalus (iNPH) patients, and its impact on outcome of shunt surgery. MATERIALS AND METHODS: We analyzed all 35 iNPH patients whose ABP and ICP were recorded simultaneously during 6 years (2002-2007). The static and pulsatile pressures were averaged over consecutive 6-s intervals; the moving correlations between ICP and ABP (static and pulsatile) were determined during consecutive 4-min periods to explore time-related variations. RESULTS: Neither static nor pulsatile ABP were altered in iNPH shunt responders. Elevated pulsatile ICP, but normal static ICP, was seen in responders. The time-varying correlations of static and of pulsatile pressures were generally low, and did not differ between shunt responders/non-responders. CONCLUSIONS: In iNPH shunt responders, static or pulsatile ABP were not altered and only pulsatile ICP was elevated.
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