- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT07613918
Brain Blood Flow and Cerebral Autoregulation Monitoring in Critically Ill Children
Transcranial Doppler Assessment of Cerebral Autoregulation and Blood Flow Velocity Patterns in Critically Ill Children: A Prospective Observational Study
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Detaillierte Beschreibung
Current clinical management of hemodynamics in critically ill children relies primarily on systemic parameters (e.g., blood pressure, heart rate) rather than direct assessment of cerebrovascular regulation. This approach may overlook individual variations in cerebral autoregulation (CA) capacity, potentially leading to suboptimal cerebral perfusion.
By prospectively evaluating TCD-derived CA indices in intubated pediatric patients with arterial blood pressure monitoring, this study aims to:
- Establish normative Cerebral blood flow velocity (CBFV) ranges for critically ill children
- Describe CBFV patterns across critically ill pediatric populations with varying neurologic risk profiles
- Characterize the prevalence of CA dysfunction in a heterogeneous PICU population
- Explore associations between CA/CBFV and functional outcomes
These data could:
- Provide age-stratified CBFV reference values for the PICU setting
- Identify patients at highest risk of neurological morbidity using population-specific thresholds
- Inform future trials of autoregulation-guided hemodynamic management
Studientyp
Einschreibung (Geschätzt)
Kontakte und Standorte
Studienkontakt
- Name: Meg Baker
- Telefonnummer: meg.baker@wisc.edu
- E-Mail: meg.baker@wisc.edu
Studienorte
-
-
Wisconsin
-
Madison, Wisconsin, Vereinigte Staaten, 53792
- Rekrutierung
- American Family Children's Hospital PICU
-
Unterermittler:
- Talal Al Hendawi, MD
-
Hauptermittler:
- Neil Munjal, MD
-
-
Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
- Kind
Akzeptiert gesunde Freiwillige
Probenahmeverfahren
Studienpopulation
Beschreibung
Inclusion Criteria:
- Has at least one Parent or Legal Guardian who is willing and able to provide informed consent in English
- Mechanically ventilated (Endotracheal tube)
- Indwelling arterial catheter
- Current patient in the American Family Children's Hospital PICU.
- 1 day to 17.5 years of age
Exclusion Criteria:
- Subjects with a known or obvious anatomic barrier preventing safe application of the transcranial Doppler probe (e.g., cranial dressings, cranial fixation hardware, ventricular access devices positioned over insonation sites, or bilateral craniectomies)
- Patient with known chronic hypertension
- Admission FSS score > 16
- Tracheostomized patient
- The designated sub-investigator (Dr. Talal Al Hendawi) and PI (Dr. Neil Munjal) are unavailable to perform the Transcranial Doppler scan at the time of eligibility. All study scans are performed by either Dr. Al Hendawi or Dr.Munjal to ensure standardization and data integrity. Therefore, if they are unavailable (e.g., due to clinical service, leave, or other scheduling constraints), the patient will not be enrolled in the study.
- Not suitable for study participation due to other reasons at the discretion of the investigators
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
Kohorten und Interventionen
Gruppe / Kohorte |
Intervention / Behandlung |
|---|---|
|
PICU Patients
Mechanically ventilated pediatric patients (1 day-17.5 years) admitted to the PICU.
|
TCD measurements synchronized to arterial blood pressure and ventilatory data, performed once daily for up to 5 days during PICU admission plus one additional pre-extubation scan if applicable, approximately 30 minutes each.
Bilateral middle cerebral artery (MCA) insonation performed at each session.
Andere Namen:
|
Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Change in Functional Status Scale (FSS) from baseline to PICU discharge
Zeitfenster: Baseline FSS reflects pre-morbid functional status as reported by parents/guardians at enrollment; follow-up FSS assessed at PICU discharge (estimated 3-14 days)
|
To assess the relationship between cerebral autoregulation and neurological outcomes in critically ill pediatric patients, FSS will be measured.
FSS has 6 domains: mental status, sensory, communication, motor function, feeding, and respiratory.
FSS is scored from 6 to 30, higher scores are indicative of more severe dysfunction.
|
Baseline FSS reflects pre-morbid functional status as reported by parents/guardians at enrollment; follow-up FSS assessed at PICU discharge (estimated 3-14 days)
|
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Mean Flow Index (Mx)
Zeitfenster: data collected while in PICU, from consent (baseline) to discharge (estimated 3-14 days)
|
Mean Flow Index (Mx) will serve as the primary exposure variable in multivariable regression analyses relating cerebral autoregulation status to functional outcome, and will additionally be characterized across PICU subpopulations.
|
data collected while in PICU, from consent (baseline) to discharge (estimated 3-14 days)
|
|
Percent successful exams (complete bilateral MCA data)
Zeitfenster: data collected while in PICU, from consent (baseline) to discharge (estimated 3-14 days)
|
Feasibility metric reflecting the proportion of TCD sessions yielding complete bilateral MCA data, used to assess protocol feasibility and sonographic success rates in the PICU setting.
|
data collected while in PICU, from consent (baseline) to discharge (estimated 3-14 days)
|
|
Time per exam (min)
Zeitfenster: data collected while in PICU, from consent (baseline) to discharge (estimated 3-14 days)
|
Feasibility metric reflecting total time required per TCD session, used to assess protocol efficiency and burden on clinical care.
|
data collected while in PICU, from consent (baseline) to discharge (estimated 3-14 days)
|
|
Mean CBFV
Zeitfenster: data collected while in PICU, from consent (baseline) to discharge (estimated 3-14 days)
|
To describe cerebral blood flow velocity patterns in critically ill pediatric patients, mean CBFV will be measured.
|
data collected while in PICU, from consent (baseline) to discharge (estimated 3-14 days)
|
|
Age-stratified CBFV values across pre-specified clinical subgroups (TBI, cardiac arrest, ECMO)
Zeitfenster: data collected while in PICU, from consent (baseline) to discharge (estimated 3-14 days)
|
data collected while in PICU, from consent (baseline) to discharge (estimated 3-14 days)
|
|
|
Age-stratified Mx values across pre-specified clinical subgroups (TBI, cardiac arrest, ECMO)
Zeitfenster: data collected while in PICU, from consent (baseline) to discharge (estimated 3-14 days)
|
data collected while in PICU, from consent (baseline) to discharge (estimated 3-14 days)
|
Mitarbeiter und Ermittler
Sponsor
Ermittler
- Hauptermittler: Neil Munjal, MD, UW School of Medicine and Public Health
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Primärer Abschluss (Geschätzt)
Studienabschluss (Geschätzt)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
- Erkrankungen des Gehirns
- Erkrankungen des zentralen Nervensystems
- Erkrankungen des Nervensystems
- Herz-Kreislauf-Erkrankungen
- Wunden und Verletzungen
- Pathologische Prozesse
- Herzkrankheiten
- Krankheitsattribute
- Erkrankungen der Atemwege
- Atemstörungen
- Kraniozerebrales Trauma
- Trauma, Nervensystem
- Hirnverletzungen
- Pathologische Zustände, Anzeichen und Symptome
- Hirnverletzungen, traumatisch
- Ateminsuffizienz
- Kritische Krankheit
- Herzstillstand
- Untersuchungstechniken
- Diagnosetechniken und Verfahren
- Diagnose
- Diagnostische Bildgebung
- Diagnosetechniken, neurologisch
- Radiographie
- Ultraschall
- Echoenzephalographie
- Neuroradiographie
- Neuroimaging
- Ultraschall, Doppler
- Ultraschall, Doppler, transkraniell
Andere Studien-ID-Nummern
- 2026-0238
- SMPH/Pediatrics/Critical Care (Andere Kennung: UW Madison)
- Protocol Version 3/3/26 (Andere Kennung: UW Madison)
Plan für individuelle Teilnehmerdaten (IPD)
Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?
Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .