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CompletedNCT06569992Updated Feb 7, 2025

Etiology and Hemodynamic Instability in Brain Death

An observational study in Brain Death, sponsored by Antalya Training and Research Hospital. Completed at 1 site in Turkey. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-02-07.

Sponsored by Antalya Training and Research Hospital · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
216
Ages
18 Years and older
Sex
All
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Study summary

Brain death is a complex and irreversible condition marked by the cessation of all brain activity. This retrospective study analyzes ICU patients who progressed from initial brain injury to brain death. The research focuses on demographic profiles, pharmacological interventions, laboratory data, and imaging findings to understand these cases clinical trajectories and therapeutic responses. Central to this study is evaluating cardiovascular support using the Vasoactive-Inotropic Score (VIS) and Total Inotrope Exposure (TIE) Score. This study explores the relationship between the etiology of brain death and the pharmacologic cardiovascular support administered, as quantified by VIS and TIES scores. This study seeks to enhance the management strategies and improve outcomes for patients diagnosed with brain death

Read the detailed description

This study undertakes a comprehensive retrospective analysis of patients admitted to the intensive care unit (ICU) with an initial diagnosis of brain injury who subsequently progressed to brain death. The investigation will meticulously assess these patients, demographic profiles, pharmacological interventions, laboratory parameters, and radiological imaging findings. The overarching aim is to delineate the clinical trajectory and therapeutic responses of patients diagnosed with brain death, critically evaluating the complexities encountered during their management, and providing evidence-based insights to inform future treatment protocols.

Central to this study is the quantitative assessment of hemodynamic stability using the Vasoactive-Inotropic Score (VIS) and the Total Inotrope Exposure (TIE) Score. The VIS will quantify the need for vasopressor and inotropic support, reflecting the severity of cardiovascular instability. At the same time, the TIE Score will measure the cumulative exposure to inotropic agents, providing a comprehensive evaluation of the overall cardiovascular burden. The primary aim of this study is to explore the relationship between the etiology of brain death and the pharmacologic cardiovascular support administered, as quantified by VIS and TIES scores. Additionally, the study will assess how these pharmacologic interventions differ in patients who have undergone decompressive surgery compared to those who have not.

This thesis aspires to make a significant contribution to the optimization of management strategies for patients diagnosed with brain death, aiming to enhance clinical decision-making and improve patient outcomes in this critically ill cohort.

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Conditions studied

  • Brain Death

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Keywords

  • Brain death
  • VIS
  • TIES
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In context

Brain Death

74 studies on the registry are indexed under Brain Death; 10 are open to participants now.

This study's enrollment of 216 is above the median of 80 across 33 observational studies indexed under Brain Death.

Browse Brain Death studies →

Lead sponsor

Antalya Training and Research Hospital is the lead sponsor of 104 studies on the registry; 12 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

This study will retrospectively analyze data from patients diagnosed with brain death and followed in the Anesthesiology and Intensive Care Units at University of Health Science Antalya Training and Research Hospital between January 1, 2019, and December 31, 2023. Patients will be categorized based on the etiological cause of brain injury into the following groups: those with spontaneous subarachnoid hemorrhage and spontaneous intracerebral hemorrhage (Group 1), those with traumatic intracranial hemorrhage (Group 2), and those with ischemic cerebrovascular events and hypoxic-ischemic brain injury (including cases of cardiac arrest, drowning, carbon monoxide poisoning, etc.) (Group 3).

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adult patients (≥18 years) admitted to the intensive care unit (ICU) at Antalya Training and Research Hospital between 2019 and 2023.
  • Patients with a confirmed diagnosis of brain death based on a positive apnea test and/or neuroimaging findings.
  • Patients with comprehensive and complete clinical data available in the hospital\'s medical records.

Exclusion criteria

Exclusion Criteria:

  • Patients under the age of 18.
  • Patients with incomplete clinical data in the medical records.
  • Patients with moderate to severe heart failure.
  • Patients with major organ injuries in addition to traumatic intracranial hemorrhage.
  • Pregnant patients.
  • Patients with significant comorbidities that could impact hemodynamic stability.
  • Patients experiencing hemodynamic instability due to septic shock.
  • Patients who were initially treated for brain injury at external facilities and later transferred to our hospital.
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Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
216 participants (actual)
Patient registry
No

Groups and cohorts

  • Group 1

    Spontaneous subarachnoid hemorrhage and spontaneous intracerebral hemorrhage

    Other: VIS, TIES

  • Group 2

    Traumatic intracranial hemorrhage

    Other: VIS, TIES

  • Group 3

    Ischemic cerebrovascular events and hypoxic-ischemic brain injury (including cases of cardiac arrest, drowning, carbon monoxide poisoning, etc.)

    Other: VIS, TIES

Interventions

  • OtherVIS, TIES

    The vasopressor and inotropic drug dosages administered during the follow-up of these patients will be recorded, and the Vasoactive-Inotropic Score (VIS) and Total Inotrope Exposure Score (TIES) will be calculated.

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What researchers measure

Primary outcomes

  1. Total Inotrope Exposure Score (TIES)

    Dopamine dose (μg/kg/min) × \[length of administration in days\] + Dobutamine dose (μg/kg/min) × \[length of administration in days\] + 10 × Milrinone dose (μg/kg/min) × \[length of administration in days\] + 100 × Epinephrine dose (μg/kg/min) × \[length of administration in days\] + 100 × Norepinephrine dose (μg/kg/min) × \[length of administration in days\] + 10,000 × Vasopressin dose (U/kg/min) × \[length of administration in days

    Time frame: From beginning to vasoactive-inotropic drugs infusion until diagnosis of brain death, 10 days (with intermediate measurements every hours)

  2. Vasoactive-Inotropic Score (VIS)

    Dopamine dose (μg/kg/min) + dobutamine dose (μg/kg/min) + 100 × epinephrine dose (μg/kg/min) + 10 × milrinone dose (μg/kg/min) + 10 000 × vasopressin dose (unit/kg/min) + 100 × norepinephrine dose (μg/kg/min).

    Time frame: From beginning to vasoactive-inotropic drugs infusion until diagnosis of brain death, 10 days (with intermediate measurements every hours)

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Study locations

1 site
  • University of Health Sciences
    Antalya, Muratpasa 07100, Turkey
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References and documents

Publications

  • Flowers WM Jr, Patel BR. Persistence of cerebral blood flow after brain death. South Med J. 2000 Apr;93(4):364-70. PubMed 10798503 ↗
  • Belletti A, Lerose CC, Zangrillo A, Landoni G. Vasoactive-Inotropic Score: Evolution, Clinical Utility, and Pitfalls. J Cardiothorac Vasc Anesth. 2021 Oct;35(10):3067-3077. doi: 10.1053/j.jvca.2020.09.117. Epub 2020 Sep 22. PubMed 33069558 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from May 2024 to primary completion in Oct 2024, 5 months.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 20, 2024
First posted
Aug 26, 2024
StartActual
May 30, 2024
Primary completionActual
Oct 30, 2024
CompletionActual
Dec 30, 2024
Last update
Feb 7, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 7, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06569992
Responsible party
Nilgun Kavrut Ozturk (Professor MD, Antalya Training and Research Hospital) — Principal investigator
First posted
Aug 26, 2024
Start date
May 30, 2024
Primary completion
Oct 30, 2024
Completion
Dec 30, 2024
Last update
Feb 7, 2025

Study contacts

Nilgun Kavrut Ozturk, Professor
study chair · University of Health Science Antalya Training and Research Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.

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