Wetzel, Christian, Goertz, Lukas, Noe, Philipp, von Spreckelsen, Niklas ORCID: 0000-0002-9873-1711, Penner, Marina, Kabbasch, Christoph, Goldbrunner, Roland and Krischek, Boris (2020). Flow-regulated versus differential pressure valves for idiopathic normal pressure hydrocephalus: comparison of overdrainage rates and neurological outcome. Acta Neurochir., 162 (1). S. 15 - 22. WIEN: SPRINGER WIEN. ISSN 0942-0940

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Abstract

Background To compare flow-regulated (FR) and differential pressure (DP) valves for treatment of patients with idiopathic normal hydrocephalus (iNPH) focusing on overdrainage and neurological outcome. Methods This is a retrospective study of patients with iNPH treated with FR and DP valves at a single institution between 2008 and 2018. The neurological status was evaluated retrospectively with the Kiefer scale at baseline, after shunt placement and at the 6-month follow-up. Groups were compared using inverse probability of treatment weighting based on propensity scores. Results The study cohort consisted of 38 patients treated with FR valves and 49 with DP valves. The mean patient age was 72.0 +/- 7.6 years. Based on the Kiefer scale score, neurological improvement at the 6-month follow-up was recorded in 79.6% in the DP group and 89.5% in the FR group (p = 0.252). The overdrainage rates were higher among DP valves (10.2%) than among FR valves (2.6%, adjusted p = 0.002). Valve malfunction occurred in 2.0% in the DP group and 5.3% in the FR group (adjusted p = 0.667). Conclusions The current study demonstrates a comparable neurological improvement between DP and FR valves, with potentially lower overdrainage rates among FR valves. Long-term studies will be necessary to draw a definite conclusion on FR valves for treatment of iNPH patients.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Wetzel, ChristianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goertz, LukasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Noe, PhilippUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
von Spreckelsen, NiklasUNSPECIFIEDorcid.org/0000-0002-9873-1711UNSPECIFIED
Penner, MarinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kabbasch, ChristophUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Goldbrunner, RolandUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Krischek, BorisUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-127824
DOI: 10.1007/s00701-019-04088-9
Journal or Publication Title: Acta Neurochir.
Volume: 162
Number: 1
Page Range: S. 15 - 22
Date: 2020
Publisher: SPRINGER WIEN
Place of Publication: WIEN
ISSN: 0942-0940
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
SURGICAL-TREATMENT; MULTICENTER; FREQUENCYMultiple languages
Clinical Neurology; SurgeryMultiple languages
Refereed: Yes
URI: http://kups.ub.uni-koeln.de/id/eprint/12782

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