NCT06629168

Brief Summary

Normal pressure hydrocephalus (NPH) is a preventable and treatable cause of dementia. However, as a nosological entity, it is significantly underdiagnosed, often being mistakenly classified as presenile or senile dementia without further investigation. Ongoing management is crucial, currently relying mainly on indirect methods-clinical and imaging-based. Telemetry offers a real-time, online method to assess actual cerebrospinal fluid pressures, which are crucial for patient management. Telemetry allows for tailoring treatment to the individual patient. This project is planned as a pilot study before a more extensive research project.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
33

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jan 2018

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2018

Completed
6.8 years until next milestone

First Submitted

Initial submission to the registry

October 3, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

October 8, 2024

Completed
23 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2024

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2024

Completed
Last Updated

January 23, 2025

Status Verified

January 1, 2025

Enrollment Period

6.8 years

First QC Date

October 3, 2024

Last Update Submit

January 22, 2025

Conditions

Keywords

Normal pressure hydrocephalusVP drainagetelemetrypressure monitoring

Outcome Measures

Primary Outcomes (1)

  • Comparison of patient's state

    Comparison of mini-mental state examination, gait (measured by 5-meter-walking) test a self-assessment made by patient between both group (telemetric prechamber impanted versus not implanted)

    3 month

Secondary Outcomes (3)

  • Comparison in radiological findings

    1 year

  • Comparison in number of valve setting

    1 year

  • Comparison of difference in valve settings

    1 year

Study Arms (2)

Study group "Telemetrics"

Patients with diagnosed hydrocephalus undergoing surgery (VP shunt placement) in general anesthesia. During surgery telemetrical prechamber implantad.

Diagnostic Test: lumbar punctureDiagnostic Test: External lumbar drainageProcedure: Ventriculo-peritoneal shunt placementDiagnostic Test: Follow-up control #1Diagnostic Test: Follow-up control #2Diagnostic Test: Follow-up control #3Diagnostic Test: Follow-up control #4Diagnostic Test: Telemetric prechamber readingOther: Valve setting change

Study group "Normal"

Patients with diagnosed hydrocephalus undergoing surgery (VP shunt placement) in general anesthesia. During surgery telemetrical prechamber not implantad.

Diagnostic Test: lumbar punctureDiagnostic Test: External lumbar drainageProcedure: Ventriculo-peritoneal shunt placementDiagnostic Test: Follow-up control #1Diagnostic Test: Follow-up control #2Diagnostic Test: Follow-up control #3Diagnostic Test: Follow-up control #4Other: Valve setting change

Interventions

lumbar punctureDIAGNOSTIC_TEST

Standardized lumbar puncture in L3/4 or L4/5 in diagnosis of hydrocephalus and 10-meter-walking test prior and 4 hours after lumbar puncture. Mini-mental state examination is done.

Study group "Normal"Study group "Telemetrics"

External lumbar drainage placement for assessing responsivity of external derivation of cerebrospinal fluid. It is test of responsivity to ventriculo-peritoneal shunt placement

Study group "Normal"Study group "Telemetrics"

Surgical procedure based on implantation a thin catheter into brain lateral ventricle (placed through a burrhole from Kocher point) and connection to prechamber and valve (placed behind the ear under skin) and similar thin catheter pushed under skin of neck, chest and abdomen (where put intraperitoneally). Telemetric prechamber placement according the randomization (www.randomization.com) and the envelope method of choosing of patients.

Study group "Normal"Study group "Telemetrics"
Follow-up control #1DIAGNOSTIC_TEST

Patients after VP shunt placement are assesed in gait, general condition and mini-mental state examination score 3 month after surgery. Brain CT control.

Study group "Normal"Study group "Telemetrics"
Follow-up control #2DIAGNOSTIC_TEST

Patients after VP shunt placement are assesed in gait, general condition and mini-mental state examination score 6 month after surgery. Brain CT control.

Study group "Normal"Study group "Telemetrics"
Follow-up control #3DIAGNOSTIC_TEST

Patients after VP shunt placement are assesed in gait, general condition and mini-mental state examination score 9 months after surgery. Brain CT control.

Study group "Normal"Study group "Telemetrics"
Follow-up control #4DIAGNOSTIC_TEST

Patients after VP shunt placement are assesed in gait, general condition and mini-mental state examination score a month after surgery. Brain CT control, 10-meter-walking test, MMSE, self-assessment.

Study group "Normal"Study group "Telemetrics"

Non-invasive reading of telemetric prechamber made during each follow-up control.

Study group "Telemetrics"

Changing of valve setting according patient's actual condition. Decission based on clinical state, radiological finding on CT and values readed from telemetric prechamber. Timing - each follow-up control.

Study group "Normal"Study group "Telemetrics"

Eligibility Criteria

Age40 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients selected based on inclusion criterias, with communicating hydrocephalus

You may qualify if:

  • Patients with diagnosed communicating hydrocephalus
  • mini-mental state examination test \> 10 points
  • Absence of any structural lesion on MRI or CT
  • Accepted Informed consent

You may not qualify if:

  • Non-communicating hydrocephalus
  • Structural lesion on MRI or CT (tumour, contusion, aneurysm)
  • mini-mental state examination test \< 10 points
  • Life-expectancy shorter than 1 year
  • Pre-existing other type of dementia (m. Alzheimer, vascular dementia)
  • Surgery lasting more than 120 minutes
  • Blood loss more than 500 ml
  • Adverse events during general anesthesia: mean arterial pressure \< 60 mm Hg more than 5 minutes, arrythmia with need for pharmacological treatment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital Hradec Kralove

Hradec Králové, 50005, Czechia

Location

MeSH Terms

Conditions

HydrocephalusHydrocephalus, Normal Pressure

Interventions

Spinal Puncture

Condition Hierarchy (Ancestors)

Brain DiseasesCentral Nervous System DiseasesNervous System Diseases

Intervention Hierarchy (Ancestors)

BiopsySpecimen HandlingClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisDiagnostic Techniques, NeurologicalPuncturesTherapeuticsSurgical Procedures, OperativeInvestigative Techniques

Study Officials

  • Miroslav Cihlo, M.D.

    University Hospital Hradec Kralove

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
OTHER
Target Duration
1 Year
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

October 3, 2024

First Posted

October 8, 2024

Study Start

January 1, 2018

Primary Completion

October 31, 2024

Study Completion

December 31, 2024

Last Updated

January 23, 2025

Record last verified: 2025-01

Locations