NCT05346471

Brief Summary

Invasive neuromonitoring of intracranial pressure (ICP) is an important element of neurosurgical critical care that is used primarily as an indicator of adequate cerebral perfusion in patients, when clinical observation is not an option. Due to the constraint in size and the critical structures within the posterior fossa, detection of intracranial pressure particularly in the postoperative phase has been deemed desirable in patients with surgery in this region, particularly in those subjected to prolonged procedures and critical care. The posterior fossa is an anatomically constricted compartment with narrow spaces and intracranial hypertension quickly leads to brainstem damage and neurological dysfunction. ICP in the supratentorial space not necessarily correlates with ICP in the infratentorial space. Some authors claim that it would be beneficial to measure ICP in infratentorial space after posterior fossa surgery in some cases. The relationship between the intracranial pressure profiles in the supratentorial and infratentorial compartments remain unclear. After a neurosurgical operation in the posterior fossa there are most likely pressure differences between supra- and infratentorial spaces. It is well known that the pressure within the skull is unevenly distributed, with appreciable ICP gradients. Thus, the investigators intend to apply the intracranial multimodal monitoring in both infratentorial and supratentorial compartments simultaneously. Such coincident measurements most likely will be the most sensitive way to assess focal swelling, ischemia and tissue perfusion, or other relevant complications in the posterior fossa structures. The goal of this study is to test whether direct infratentorial monitoring is a more efficacious method for detecting dynamic changes in the operative compartment and whether it is safe, in view of the critical structures within the region.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jun 2019

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

June 3, 2019

Completed
2.8 years until next milestone

First Submitted

Initial submission to the registry

March 30, 2022

Completed
27 days until next milestone

First Posted

Study publicly available on registry

April 26, 2022

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 31, 2025

Completed
Last Updated

April 26, 2022

Status Verified

January 1, 2022

Enrollment Period

5.6 years

First QC Date

March 30, 2022

Last Update Submit

April 20, 2022

Conditions

Keywords

Infratentorial Neuromonitoring

Outcome Measures

Primary Outcomes (8)

  • Incidence of device-related events [Safety and Tolerability]

    All device-related events (infections, tissue irritation, haemorrhage along device trajectory, dural leaks etc.) will be noted and reported, even if no clinical consequence will ensue

    From implementation until removing of infratentorial multimodal neuromonitoring, assessed up to 30 days

  • Correlation

    Correlation analysis of supra- and infratentorial measures

    As long as neuromonitoring is indicated, assessed up to 30 days

  • Glasgow Outcome Scale (GOS) after 3 months

    GOS to asses the potential influence of infratentorial monitoring measures on clinical outcome (GOS 1-3 poor outcome; GOS 4-5 good outcome)

    Assessed 3 months after initial treatment

  • Glasgow Outcome Scale (GOS) after 6 months

    GOS to asses the potential influence of infratentorial monitoring measures on clinical outcome (GOS 1-3 poor outcome; GOS 4-5 good outcome)

    Assessed 6 months after initial treatment

  • Glasgow Outcome Scale (GOS) after 9 months

    GOS to asses the potential influence of infratentorial monitoring measures on clinical outcome (GOS 1-3 poor outcome; GOS 4-5 good outcome)

    Assessed 9 months after initial treatment

  • modified Ranking Scale (mRS) after 3 months

    mRS as alternative outcome measure to asses the potential influence of infratentorial monitoring measures on clinical outcome (mRS 0-6; the higher the worse the outcome)

    Assessed 3 months after initial treatment

  • modified Ranking Scale (mRS) after 6 months

    mRS as alternative outcome measure to asses the potential influence of infratentorial monitoring measures on clinical outcome (mRS 0-6; the higher the worse the outcome)

    Assessed 6 months after initial treatment

  • modified Ranking Scale (mRS) after 9 months

    mRS as alternative outcome measure to asses the potential influence of infratentorial monitoring measures on clinical outcome (mRS 0-6; the higher the worse the outcome)

    Assessed 9 months after initial treatment

Study Arms (1)

Acute posterior fossa lesions

OTHER

Subjects will receive additional multimodal infratentorial neuromonitoring

Device: Multimodal neuromonitoring

Interventions

Multimodal neuromonitoring accounts for intraparenchymatous ICP probe, brain tissue oxygen probe and/or cerebral microdialysis device

Acute posterior fossa lesions

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Posterior fossa lesions with anticipated prolonged neurointensive critical care
  • Patients older than 18 years
  • Informed consent if applicable (unconscious patients will be also enrolled)

You may not qualify if:

  • Coagulation disorders
  • Age \< 18 years
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical University of Innsbruck

Innsbruck, Tyrol, 6020, Austria

RECRUITING

Related Publications (12)

  • Slavin KV, Misra M. Infratentorial intracranial pressure monitoring in neurosurgical intensive care unit. Neurol Res. 2003 Dec;25(8):880-4. doi: 10.1179/016164103771954014.

    PMID: 14669535BACKGROUND
  • Khan A, Borg N, Shenouda E. Posterior fossa ICP monitoring: a tale of two compartments. Br J Neurosurg. 2021 Apr;35(2):129-132. doi: 10.1080/02688697.2020.1765974. Epub 2020 May 15.

    PMID: 32410470BACKGROUND
  • Rosenwasser RH, Kleiner LI, Krzeminski JP, Buchheit WA. Intracranial pressure monitoring in the posterior fossa: a preliminary report. J Neurosurg. 1989 Oct;71(4):503-5. doi: 10.3171/jns.1989.71.4.0503.

    PMID: 2795169BACKGROUND
  • Moyse E, Ros M, Marhar F, Swider P, Schmidt EA. Characterisation of Supra- and Infratentorial ICP Profiles. Acta Neurochir Suppl. 2016;122:37-40. doi: 10.1007/978-3-319-22533-3_7.

    PMID: 27165873BACKGROUND
  • LANGFITT TW, WEINSTEIN JD, KASSELL NF, SIMEONE FA. TRANSMISSION OF INCREASED INTRACRANIAL PRESSURE. I. WITHIN THE CRANIOSPINAL AXIS. J Neurosurg. 1964 Nov;21:989-97. doi: 10.3171/jns.1964.21.11.0989. No abstract available.

    PMID: 14238966BACKGROUND
  • Wolfla CE, Luerssen TG, Bowman RM, Putty TK. Brain tissue pressure gradients created by expanding frontal epidural mass lesion. J Neurosurg. 1996 Apr;84(4):642-7. doi: 10.3171/jns.1996.84.4.0642.

    PMID: 8613857BACKGROUND
  • Vanaclocha V, Saiz-Sapena N, Rivera-Paz M, Herrera JM, Ortiz-Criado JM, Verdu-Lopez F, Vanaclocha L. Can we safely monitor posterior fossa intracranial pressure? A cadaveric study. Br J Neurosurg. 2017 Oct;31(5):557-563. doi: 10.1080/02688697.2017.1332336. Epub 2017 May 25.

    PMID: 28539078BACKGROUND
  • Rosner MJ, Becker DP. ICP monitoring: complications and associated factors. Clin Neurosurg. 1976;23:494-519. doi: 10.1093/neurosurgery/23.cn_suppl_1.494.

    PMID: 975699BACKGROUND
  • Maas AI, Schouten JW, Stocchetti N, Bullock R, Ghajar J. Questioning the value of intracranial pressure (ICP) monitoring in patients with brain injuries. J Trauma. 2008 Oct;65(4):966-7. doi: 10.1097/TA.0b013e318184ee7b. No abstract available.

    PMID: 18849824BACKGROUND
  • Saul TG, Ducker TB. Effect of intracranial pressure monitoring and aggressive treatment on mortality in severe head injury. J Neurosurg. 1982 Apr;56(4):498-503. doi: 10.3171/jns.1982.56.4.0498.

    PMID: 6801218BACKGROUND
  • Piek J, Bock WJ. Continuous monitoring of cerebral tissue pressure in neurosurgical practice--experiences with 100 patients. Intensive Care Med. 1990;16(3):184-8. doi: 10.1007/BF01724800.

    PMID: 2351779BACKGROUND
  • Petr O, Ho WM, Petutschnigg T, Krigers A, Treichl SA, Preuss-Hernandez C, Brawanski K, Helbok R, Thome C. Link between both infratentorial and supratentorial intracranial pressure burdens and final outcome in patients with infratentorial brain injury. J Neurosurg. 2023 Apr 28;139(5):1430-1438. doi: 10.3171/2023.1.JNS221806. Print 2023 Nov 1.

MeSH Terms

Conditions

Intracranial HypertensionIntracranial Hemorrhages

Condition Hierarchy (Ancestors)

Brain DiseasesCentral Nervous System DiseasesNervous System DiseasesCerebrovascular DisordersVascular DiseasesCardiovascular DiseasesHemorrhagePathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Ondra Petr, MD PhD

    Consultant - Faculty/Staff

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Ondra Petr, MD PhD

CONTACT

Thomas Petutschnigg

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DIAGNOSTIC
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 30, 2022

First Posted

April 26, 2022

Study Start

June 3, 2019

Primary Completion

December 31, 2024

Study Completion

March 31, 2025

Last Updated

April 26, 2022

Record last verified: 2022-01

Data Sharing

IPD Sharing
Will not share

Collection of data and publish results

Locations