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Ischemic StrokeNCT04904172

Effectiveness of NIRS (Near-Infrared Spectroscopy) at Acute Ischemic Stroke Patients

An observational study of Ischemic Stroke, run by Ege University at 1 site in Turkey (Türkiye).

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Near-infrared spectroscopy (NIRS) is a non-invasive technology that continuously monitors regional tissue oxygenation (tissue saturation with oxygen). NIRS is used to evaluate the oxygen saturation of the brain and other tissues (such as muscle, liver, lung). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Ischemic Stroke
What is being tested?
Masimo O3 Regional Oximetry
How many people
54 participants
Where
1 siteTurkey (Türkiye)
Study dates
1 Nov 2020to May 2023
How long will I take part?
1 Day
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients over the age of 18 who applied to Ege University Hospital Emergency Service with acute ischemic stroke and were planned and applied intravenous thrombolytic and / or endovascular thrombectomy treatment or treatments by a Neurology Specialist

Who may be able to join

  • Being over the age of 18
  • Patients with acute ischemic stroke who applied to Ege University Emergency Service and decided to undergo intravenous thrombolytic and / or endovascular thrombectomy treatment or treatments by a Neurology Specialist.

Who cannot join

  • Under 18 years old
  • Trauma
  • Resuscitation applied
  • Patients presenting with acute ischemic stroke clinic but not eligible for intravenous thrombolytic and / or endovascular thrombectomy treatment or treatment.
  • Patients without written consent
  • Patients who cannot undergo NIRS monitoring for any reason
  • Patients with skin lesions,hematoma, mass etc. in the forehead (electrode placement site).
  • Having a level of jaundice on the skin that can be seen by inspection.

Trial locations and contacts

1 site in 1 country.

Emre Ersegün Günay, MD contact

+90 505 155 99 95

ersegun@windowslive.com

Funda Karbek Akarca, assoc.prof contact

+90 505 589 0881

fkarbek2003@yahoo.com

Turkey (Türkiye)1 site, 1 recruiting
  • Ege University, Department of Emergency Medicine

    Izmir, Bornova, 35100

    Emre Ersegün Günay, MD, +90505155995, ersegun@windowslive.com

    Funda Karbek Akarca, assoc. prof., +90 505 589 0881, fkarbek2003@yahoo.com

    Recruiting

Other trials in Turkey (Türkiye)

About this study

Official title: Effectiveness of NIRS (Near-Infrared Spectroscopy) in Indicating Cerebral Oxygenation at Acute Ischemic Stroke Patients Undergoing Intravenous Thrombolytic Therapy and / or Endovascular Thrombectomy

Near-infrared spectroscopy (NIRS) is a non-invasive technology that continuously monitors regional tissue oxygenation (tissue saturation with oxygen). NIRS is used to evaluate the oxygen saturation of the brain and other tissues (such as muscle, liver, lung). NIRS is a non-invasive, simple, bedside method that can be used safely in stroke patients, as it is a method that can be performed at the bedside and does not affect the treatment process. The NIRS, which we will use in our study, continuously measures with the help of two electrodes affixed to the forehead area, right and left.

There are previously created scales and scales based on neurological examination in the follow-up of patients with acute ischemic stroke. The main ones are the Glasgow Coma Scale (GCS), which is used without evaluating the patient's consciousness; It is the National Institutes of Health Stroke Scale (NIHSS), which is used to evaluate the severity of ischemic stroke, its suitability for treatment and treatment response, and the Modified Rankin Scale (mRS), which is used to evaluate the daily activity ability of individuals. However, since these cannot predict the patient's response to treatment and complications that will develop early, and there are no objective parameters, there is a need for methods that require objective monitoring of the patients.

Acute ischemic stroke patients who received intravenous thrombolytic therapy with NIRS and / or who underwent endovascular thrombectomy are monitored for 24 hours and the data obtained from this method are compared with the vital findings, GCS, NIHSS, mRS, which are traditionally used in the follow-up of these patients. Thus, it was aimed to evaluate the utility of this method in evaluating the treatment efficacy and prognosis of patients compared to traditional methods in acute ischemic stroke patients.

Read the detailed description

Patients over the age of 18 who applied to Ege University Hospital Emergency Service with acute ischemic stroke and who were planned and applied intravenous thrombolytic and / or endovascular thrombectomy by the Neurology Specialist will be included in the study. Participants and / or their guardians will be informed about the study by the researcher and a written informed consent form will be obtained from those who agree to participate in the study. For those who meet the exclusion criteria from the study, the reason for exclusion will be recorded and excluded from the study. The patients included in the study will not be intervened in the diagnosis and treatment processes planned in the emergency department.

Two electrodes will be attached to the forehead area and connected to the Near Infrared Spectroscopy device after the consent of the patients who apply to Ege University Hospital Emergency Service with acute ischemic stroke and who are planned intravenous thrombolytic and / or endovascular thrombectomy treatment or treatments, and / or their caregivers.

The subjects participating in the study will be followed up during their 24-hour period in Ege University Medical Faculty Hospital Emergency Service patient care areas and Ege University Medical Faculty Hospital Neurology Intensive Care Unit. If the cases are transferred to another hospital, the follow-up of the cases will be terminated and they will be excluded from the study. The age, gender, application methods and risk factors of the subjects participating in the study will be recorded on the case report form.

In routine monitoring, blood pressure, pulse, blood oxygenation 0., 15., 30., 45., 60., 75., 90., 105., 120., 150., 180., 210., 240., 270., 300., 330., 360. minutes and at 7, 8, 9, 10, 11, 12, 14, 16, 18, 24 hours will be recorded in the report form . The time of onset of the findings in the anamnesis taken by the primary physician of the patient, the time of the patient's presentation, the time of the radiological imaging planned by the patient's primary physician, and the starting time of the treatment will be recorded in the case report form. Intravenous thrombolytic and / or endovascular thrombectomy treatment or treatments planned and applied to the patient within 24 hours will be recorded together with their timings. In addition, the transfer time of the case to the Intensive Care Unit and / or the time of transfer to the Interventional Radiology Unit and the duration of stay in the emergency department in patients who will undergo Endovascular Thrombectomy will be recorded in the case report form. Blood oxygenation of the cases is routinely performed with pulse oximetry, which has the same working principle as NIRS, and will be recorded in the case report form. In this way, NIRS measurements can be compared with systemic ischemia, which may affect NIRS measurements.

GCS, NIHSS 0., 15., 30., 45., 60., 75., 90., 105., 120., 150., 180., 210., 240., 270 , 300., 330., 360. minutes and at the 7th, 8th, 9th, 10th, 11th, 12th, 14th, 16th, 18th, 24th hours will be recorded in the report form.. MRS in the neurological examination performed by the primary physician of the patient will be recorded in the case report form at the time of application and at the time of end. The ASPECT scoring system, which is used to evaluate the affected brain region and brain region in the imaging performed to the cases, will be recorded in the case report form. In addition, right / left rSO2 and IHrSO2 0., 15., 30., 45., 60., 75., 90., 105., 120., 150., 180., 210., 240., 270., 300., 330., 360. Minutes and 7., 8., 9., 10., 11., 12., 14., 16., 18., 24. Hours will be recorded in the report form. All additional procedures that will affect NIRS measurements (resuscitation, sedation, interventional procedures) and developing complications will be recorded on the case report form within the 24-hour follow-up period.

Statistical analysis of the registered research data will be made. Further analysis will be determined according to whether the data show normal distribution or not, and the significance of the difference between the data will be evaluated in the opinion of the biostatistics expert.

Conditions
Ischemic Stroke
Being tested
Masimo O3 Regional Oximetry
Keywords
Spectroscopy, Near-Infrared, Stroke
Medical subject headings
Ischemic Stroke, Stroke

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Masimo O3 Regional OximetryDevice

    wo electrodes will be attached to the forehead area and connected to the Near Infrared Spectroscopy device after the consent of the patients who apply to Ege University Hospital Emergency Service with acute ischemic stroke and who are planned to have intravenous thrombolytic and / or endovascular thrombectomy treatment or treatments, and / or their caregivers.

Study groups in NCT04904172
Study groupRoleWhat they receive
Acute ischemic stroke who undergo intravenous thrombolytic and / or endovascular thrombectomyPatients with acute ischemic stroke who applied to Ege University Emergency Service and decided to undergo intravenous thrombolytic and / or endovascular thrombectomy treatment or treatments by a Neurology Specialist.
Receives: Device: Masimo O3 Regional Oximetry

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Clinical Condition Determined by NIHSS

    Patient Clinically improved or unimproved determined by NIHSS

    Measured: 24 hours or death or referral of patients to another hospital or another unit

  2. Clinical Condition Determined by GCS

    Patient Clinically improved or unimproved determined by GCS

    Measured: 24 hours or death or referral of patients to another hospital or another unit

  3. rSO2 measurements

    Right / left rSO2 is the oxygen saturation of the right and left hemispheres of the brain measured with the help of electrodes. On the other hand, IHrsO2 is found by subtracting rSO2 at unaffected hemisphere of brain from the rSO2 at affected side of the brain from ischemia. In the studies carried out, a change of 4% in unilateral rSO2 and 2% in IhrSO2 is considered significant. In this study significant changes at rSO2 will be determined after statystical analysis

    Measured: 24 hours or death or referral of patients to another hospital or another unit

Secondary outcomes (4)
  1. Blood Pressure

    rSO2 measurements affected by change in blood pressure

    Measured: 24 hours or death or referral of patients to another hospital or another unit

  2. Blood Oxygen Saturations

    rSO2 measurements affected by change in Oxygen Saturations

    Measured: 24 hours or death or referral of patients to another hospital or another unit

  3. Drug interventions

    rSO2 measurements affected by change in Drug interventions

    Measured: 24 hours or death or referral of patients to another hospital or another unit

  4. Change in MRS score

    rSO2 measurements to decide MRS change

    Measured: From date of thrombolysis or thrombectomy has been made until death or admitting to another unit other than Stroke ICU or discharge,whicever came first, assessed up to 90 days.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 May 2021
  2. Study start1 Nov 2020
  3. Primary completionNov 2022 (estimated)
  4. Study completionMay 2023 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case only
Time perspective
Prospective
Enrolment
54 participants (estimated)
Target duration
1 Day
IDs, dates and publications
ClinicalTrials.gov ID
NCT04904172
Sponsor's protocol ID
22848
Status last verified
Mar 2022
First submitted
12 May 2021
Last updated
23 Mar 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
Undecided: Undecided

Publications

  • T.C. Sağlık Bakanlığı-Sağlık Araştırmaları Genel Müdürlüğü (2017), İnme Klinik Protokolü.

  • Kernan WN, Ovbiagele B, Black HR, Bravata DM, Chimowitz MI, Ezekowitz MD, Fang MC, Fisher M, Furie KL, Heck DV, Johnston SC, Kasner SE, Kittner SJ, Mitchell PH, Rich MW, Richardson D, Schwamm LH, Wilson JA; American Heart Association Stroke Council, Council on Cardiovascular and Stroke Nursing, Council on Clinical Cardiology, and Council on Peripheral Vascular Disease. Guidelines for the prevention of stroke in patients with stroke and transient ischemic attack: a guideline for healthcare professionals from the American Heart Association/American Stroke Association. Stroke. 2014 Jul;45(7):2160-236. doi: 10.1161/STR.0000000000000024. Epub 2014 May 1.

    PubMed 24788967
  • Gorelick PB. The burden and management of TIA and stroke in government-funded healthcare programs. Am J Manag Care. 2009 Jun;15(6 Suppl):S177-84.

    PubMed 19601693
  • Mozaffarian D, Benjamin EJ, Go AS, Arnett DK, Blaha MJ, Cushman M, de Ferranti S, Despres JP, Fullerton HJ, Howard VJ, Huffman MD, Judd SE, Kissela BM, Lackland DT, Lichtman JH, Lisabeth LD, Liu S, Mackey RH, Matchar DB, McGuire DK, Mohler ER 3rd, Moy CS, Muntner P, Mussolino ME, Nasir K, Neumar RW, Nichol G, Palaniappan L, Pandey DK, Reeves MJ, Rodriguez CJ, Sorlie PD, Stein J, Towfighi A, Turan TN, Virani SS, Willey JZ, Woo D, Yeh RW, Turner MB; American Heart Association Statistics Committee and Stroke Statistics Subcommittee. Heart disease and stroke statistics--2015 update: a report from the American Heart Association. Circulation. 2015 Jan 27;131(4):e29-322. doi: 10.1161/CIR.0000000000000152. Epub 2014 Dec 17. No abstract available.

    PubMed 25520374
  • Kumral E., Serebrovasküler hastalıkların epidemiyolojisi, in Serebrovasküler Hastalıklar, S. Balkan, Editor. Güneş Tıp Kitabevi, 2009;37-50.

  • Boehme AK, Esenwa C, Elkind MS. Stroke Risk Factors, Genetics, and Prevention. Circ Res. 2017 Feb 3;120(3):472-495. doi: 10.1161/CIRCRESAHA.116.308398.

    PubMed 28154098
  • Powers WJ, Rabinstein AA, Ackerson T, Adeoye OM, Bambakidis NC, Becker K, Biller J, Brown M, Demaerschalk BM, Hoh B, Jauch EC, Kidwell CS, Leslie-Mazwi TM, Ovbiagele B, Scott PA, Sheth KN, Southerland AM, Summers DV, Tirschwell DL; American Heart Association Stroke Council. 2018 Guidelines for the Early Management of Patients With Acute Ischemic Stroke: A Guideline for Healthcare Professionals From the American Heart Association/American Stroke Association. Stroke. 2018 Mar;49(3):e46-e110. doi: 10.1161/STR.0000000000000158. Epub 2018 Jan 24.

    PubMed 29367334
  • Annus A, Nagy A, Vecsei L, Klivenyi P. 24-Hour Near-Infrared Spectroscopy Monitoring of Acute Ischaemic Stroke Patients Undergoing Thrombolysis or Thrombectomy: A Pilot Study. J Stroke Cerebrovasc Dis. 2019 Aug;28(8):2337-2342. doi: 10.1016/j.jstrokecerebrovasdis.2019.05.026. Epub 2019 Jun 8.

    PubMed 31182266
  • Moreau F, Yang R, Nambiar V, Demchuk AM, Dunn JF. Near-infrared measurements of brain oxygenation in stroke. Neurophotonics. 2016 Jul;3(3):031403. doi: 10.1117/1.NPh.3.3.031403. Epub 2016 Feb 11.

    PubMed 26958577

Questions about this trial

What is this clinical trial studying?

An observational study of Ischemic Stroke, run by Ege University at 1 site in Turkey (Türkiye).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 23 Mar 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Emre Ersegün Günay, MD (+90 505 155 99 95, ersegun@windowslive.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Clinical Condition Determined by NIHSS (time frame: 24 hours or death or referral of patients to another hospital or another unit). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04904172, which also lists 9 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Mar 2022; AzTrials last refreshed its copy on 8 Nov 2026.

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