Evidence map›Paper›PMID 40457021›Full record

Observational studyNeurosurgical review2025

Value of biomarkers in the prediction of shunt responsivity in patients with normal pressure hydrocephalus.

Miroslav Cihlo, Pavel Trávníček, Alena Tichá, Radomír Hyšpler, Marta Kalousová, Svatopluk Řehák, Karel Zadrobílek, Lucie Kukrálová, Pavel Póczoš, Jan Pospíšil and 2 more

Abstract readObservational Study
In one paragraph

Observational study in Neurosurgical review, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Observational
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Miroslav CihloDepartment of Neurosurgery, Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove, Czech Republic. cihlom@lfhk.cuni.cz.
Pavel TrávníčekDepartment of Neurosurgery, Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove, Czech Republic.
Alena TicháDepartment of Clinical Biochemistry, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic.
Radomír HyšplerDepartment of Clinical Biochemistry, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic.
Marta KalousováInstitute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic.
Svatopluk ŘehákDepartment of Neurosurgery, Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove, Czech Republic.
Karel ZadrobílekDepartment of Neurosurgery, Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove, Czech Republic.
Lucie KukrálováDepartment of Anaesthesiology and Intensive Care Medicine, Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove, Czech Republic.
Pavel PóczošDepartment of Neurosurgery, Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove, Czech Republic.
Jan PospíšilDepartment of Anaesthesiology and Intensive Care Medicine, University Hospital Hradec Kralove, Hradec Kralove, Czech Republic.
Pavel DostálDepartment of Anaesthesiology and Intensive Care Medicine, Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove, Czech Republic.
Vlasta DostálováDepartment of Anaesthesiology and Intensive Care Medicine, Charles University, Faculty of Medicine in Hradec Kralove, Hradec Kralove, Czech Republic.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Preoperative differentiation between responders and non-responders to ventriculoperitoneal (VP) shunting in the treatment of normal pressure hydrocephalus (NPH) remains a significant challenge. Identifying biomarkers in presurgical assessment represents a promising approach to reducing the need for invasive cerebrospinal fluid CSF testing. In this prospective observational study, thirty adult patients were classified into Group A (responders to VP shunting) and Group B (non-responders) based on their responsiveness to invasive CSF testing. The overall clinical condition and Idiopathic NPH (iNPH) scale were assessed at baseline. Additionally, biomarker levels were compared between the two groups. Elevated levels of Neurofilament Light Chain (NfL) and Neurofilament Heavy Chain (NfH) in CSF and a reduced level of beta-amyloid Aβ42 were observed. No significant differences in biomarker levels were found between groups. Individual biomarkers demonstrated only poor predictive value (AUC = 0.37-0.53). Clinical factors were stronger predictors (AUC = 0.642-0.669), with no improvement when combined with all examined biomarkers (AUC = 0.428-0.431). No single biomarker reliably predicted confirmed postoperative shunt responsiveness among patients who underwent VP shunt placement and demonstrated clinical improvement. Clinical factors were stronger predictors, suggesting that patient history and clinical assessment (e.g., the iNPH scale) provide more reliable diagnostic information. Notably, combining biomarkers with clinical factors did not improve predictive accuracy.

Indexed as

BiomarkersHydrocephalus, Normal PressureVentriculoperitoneal ShuntAgedAged, 80 and overAmyloid beta-PeptidesFemaleHumansMaleMiddle AgedNeurofilament ProteinsPeptide FragmentsPredictive Value of TestsProspective StudiesTreatment OutcomeAmyloid beta-Peptidesamyloid beta-protein (1-42)Biomarkersneurofilament protein Hneurofilament protein LNeurofilament ProteinsPeptide FragmentsBeta-amyloidBiomarkersNfHNfLNormal pressure hydrocephalusNSES100BTau protein

Identifiers

PMID40457021
PMCPMC12130159

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.