Noninvasive Monitoring of Cerebral Blood Flow Autoregulation

NCT05170295 | Completed

• 1 other identifier: 2018.149
• Study Type: observational
• Target: 14
• Locations: 1 country
• Sites: 1

Brief Summary

Rheoencephalography (REG) shows promise as a method for noninvasive neuromonitoring, because it reflects cerebrovascular reactivity. This protocol will study clinical and technical conditions required to use REG. Additionally, our goal is to study noninvasive peripheral bioimpedance pulse waveforms in order to substitute invasive SAP. A previous study demonstrated that REG can be used to detect spreading depolarization (SD), the early sign of brain metabolic disturbance. SD can be measured invasively with DC EEG amplifiers only. Our goal is to create an automatic notification function for REG monitoring indicating change of clinical conditions.

Conditions

Intracranial Pressure Increase; Cerebral Edema

Keywords

neuromonitoring; intracranial pressure (ICP); cerebral blood flow autoregulation; Rheoencephalography (REG); noninvasive neuromonitoring; cerebral edema; autoregulation; Cerebral Perfusion Pressure; Pressure reactivity index

Outcome Measures

Primary Outcomes (1)

• Cerebral Blood Flow Autoregulation (CBF AR)

  Cerebral Blood Flow Autoregulation (CBF AR) will be analyzed based on noninvasive recordings (bioimpedance) by using a dedicated software for this purpose (part of ICM+ program, incorporated into a WRAIR-made software (DataLyser)). In this case CBF AR is called REGx.

  through hospital admission, an average of 10 days

Secondary Outcomes (1)

• ICP Elevation

  through hospital admission, an average of 10 days

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

This study will involve patients of Neurocritical Care Department with clinical suspicion of elevated intracranial pressure.

You may qualify if:

• Intact fronto-temporal area
• Intact lower arm area
• Clinical suspicion of elevated intracranial pressure

You may not qualify if:

• N/A

Sponsors & Collaborators

• Ochsner Health System: lead

Study Sites (1)

Ochsner Health System

New Orleans, Louisiana, 70121, United States

Location

Related Publications (15)

• Steiner LA, Andrews PJ. Monitoring the injured brain: ICP and CBF. Br J Anaesth. 2006 Jul;97(1):26-38. doi: 10.1093/bja/ael110. Epub 2006 May 12.

  PMID: 16698860 BACKGROUND

• Donnelly J, Aries MJ, Czosnyka M. Further understanding of cerebral autoregulation at the bedside: possible implications for future therapy. Expert Rev Neurother. 2015 Feb;15(2):169-85. doi: 10.1586/14737175.2015.996552.

  PMID: 25614952 BACKGROUND

• MCHENRY LC Jr. RHEOENCEPHALOGRAPHY: A CLINICAL APPRAISAL. Neurology. 1965 Jun;15:507-17. doi: 10.1212/wnl.15.6.507. No abstract available.

  PMID: 14312772 BACKGROUND

• Traczewski W, Moskala M, Kruk D, Goscinski I, Szwabowska D, Polak J, Wielgosz K. The role of computerized rheoencephalography in the assessment of normal pressure hydrocephalus. J Neurotrauma. 2005 Jul;22(7):836-43. doi: 10.1089/neu.2005.22.836.

  PMID: 16004585 BACKGROUND

• Bodo M, Simovic M, Pearce F, Ahmed A, Armonda R. Correlation of rheoencephalogram and intracranial pressure: results of a rat study. Physiol Meas. 2015 Oct;36(10):N115-26. doi: 10.1088/0967-3334/36/10/N115. Epub 2015 Sep 3.

  PMID: 26334594 BACKGROUND

• Le Roux P, Menon DK, Citerio G, Vespa P, Bader MK, Brophy GM, Diringer MN, Stocchetti N, Videtta W, Armonda R, Badjatia N, Boesel J, Chesnut R, Chou S, Claassen J, Czosnyka M, De Georgia M, Figaji A, Fugate J, Helbok R, Horowitz D, Hutchinson P, Kumar M, McNett M, Miller C, Naidech A, Oddo M, Olson D, O'Phelan K, Provencio JJ, Puppo C, Riker R, Robertson C, Schmidt M, Taccone F; Neurocritical Care Society; European Society of Intensive Care Medicine. Consensus summary statement of the International Multidisciplinary Consensus Conference on Multimodality Monitoring in Neurocritical Care : a statement for healthcare professionals from the Neurocritical Care Society and the European Society of Intensive Care Medicine. Intensive Care Med. 2014 Sep;40(9):1189-209. doi: 10.1007/s00134-014-3369-6. Epub 2014 Aug 20.

  PMID: 25138226 BACKGROUND

• Harary M, Dolmans RGF, Gormley WB. Intracranial Pressure Monitoring-Review and Avenues for Development. Sensors (Basel). 2018 Feb 5;18(2):465. doi: 10.3390/s18020465.

  PMID: 29401746 BACKGROUND

• Strandgaard S, Paulson OB. Cerebral autoregulation. Stroke. 1984 May-Jun;15(3):413-6. doi: 10.1161/01.str.15.3.413. No abstract available.

  PMID: 6374982 BACKGROUND

• PEREZ-BORJA C, MEYER JS. A CRITICAL EVALUATION OF RHEOENCEPHALOGRAPHY IN CONTROL SUBJECTS AND IN PROVEN CASES OF CEREBROVASCULAR DISEASE. J Neurol Neurosurg Psychiatry. 1964 Feb;27(1):66-72. doi: 10.1136/jnnp.27.1.66. No abstract available.

  PMID: 14123928 BACKGROUND

• Bodo M, Pearce FJ, Armonda RA. Cerebrovascular reactivity: rat studies in rheoencephalography. Physiol Meas. 2004 Dec;25(6):1371-84. doi: 10.1088/0967-3334/25/6/003.

  PMID: 15712716 BACKGROUND

• Bodo M, Pearce FJ, Montgomery LD, Rosenthal M, Kubinyi G, Thuroczy G, Braisted J, Forcino D, Morrissette C, Nagy I. Measurement of brain electrical impedance: animal studies in rheoencephalography. Aviat Space Environ Med. 2003 May;74(5):506-11.

  PMID: 12751577 BACKGROUND

• Bodo M, Pearce FJ, Baranyi L, Armonda RA. Changes in the intracranial rheoencephalogram at lower limit of cerebral blood flow autoregulation. Physiol Meas. 2005 Apr;26(2):S1-17. doi: 10.1088/0967-3334/26/2/001. Epub 2005 Mar 29.

  PMID: 15798222 BACKGROUND

• Bodo M, Szebeni J, Baranyi L, Savay S, Pearce FJ, Alving CR, Bunger R. Cerebrovascular involvement in liposome-induced cardiopulmonary distress in pigs. J Liposome Res. 2005;15(1-2):3-14. doi: 10.1081/lpr-64523.

  PMID: 16194924 BACKGROUND

• Armonda RA, Bell RS, Vo AH, Ling G, DeGraba TJ, Crandall B, Ecklund J, Campbell WW. Wartime traumatic cerebral vasospasm: recent review of combat casualties. Neurosurgery. 2006 Dec;59(6):1215-25; discussion 1225. doi: 10.1227/01.NEU.0000249190.46033.94.

  PMID: 17277684 BACKGROUND

• Le Roux P, Menon DK, Citerio G, Vespa P, Bader MK, Brophy GM, Diringer MN, Stocchetti N, Videtta W, Armonda R, Badjatia N, Boesel J, Chesnut R, Chou S, Claassen J, Czosnyka M, De Georgia M, Figaji A, Fugate J, Helbok R, Horowitz D, Hutchinson P, Kumar M, McNett M, Miller C, Naidech A, Oddo M, Olson D, O'Phelan K, Provencio JJ, Puppo C, Riker R, Robertson C, Schmidt M, Taccone F. Consensus summary statement of the International Multidisciplinary Consensus Conference on Multimodality Monitoring in Neurocritical Care: a statement for healthcare professionals from the Neurocritical Care Society and the European Society of Intensive Care Medicine. Neurocrit Care. 2014 Dec;21 Suppl 2(Suppl 2):S1-26. doi: 10.1007/s12028-014-0041-5.

  PMID: 25208678 BACKGROUND

Related Links

• ICM+
• Monitoring cerebrovascular pressure reactivity with rheoencephalography
• In vivo cerebral blood flow autoregulation studies using rheoencephalography

MeSH Terms

Conditions

Intracranial Hypertension; Brain Edema

Condition Hierarchy (Ancestors)

Brain Diseases; Central Nervous System Diseases; Nervous System Diseases

Study Officials

• Louis Cannizzaro, MD

  Ochsner

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: October 25, 2021
• First Posted: December 27, 2021
• Study Start: April 18, 2018
• Primary Completion: April 28, 2021
• Study Completion: April 28, 2021
• Last Updated: December 27, 2021

Record last verified: 2021-12

Locations

US (1)