Diese Seite wurde automatisch übersetzt und die Genauigkeit der Übersetzung wird nicht garantiert. Bitte wende dich an die englische Version für einen Quelltext.

Study of Survivors of Different Types of Cardiac Arrest and Their Neurological Recovery

9. Januar 2014 aktualisiert von: Eyad AlThenayan, Lawson Health Research Institute

Neurological Outcomes After Cardiac Arrest in Pulseless Electrical Activity in Comparison to Asystole. Are All Non-shockable Rhythms the Same?

After successful resuscitation from certain types of cardiac arrest, total body cooling is now a well established treatment that improves the chances of the brain recovering. This however, has only been definitively proven after a certain type of cardiac arrest that is "ventricular fibrillation / ventricular tachycardia". The purpose of this study is to explore if total body cooling is beneficial for patients recovering from another type of cardiac arrest that is "pulseless electrical activity".

HYPOTHESIS:

Patients undergoing post-cardiac arrest therapeutic hypothermia have better neurological outcomes if their initial arrest rhythm is pulseless electrical activity (PEA) in comparison to asystole.

Studienübersicht

Status

Unbekannt

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

STUDY RATIONALE AND BACKGROUND INFORMATION:

After successful resuscitation from cardiac arrest the body experiences a period of global reperfusion. During this period, patients may show signs of myocardial stunning, lactic acidosis, neurological injury and reperfusion syndrome. This constellation of findings constitutes what is known as post-cardiac arrest syndrome. The brain appears to be one of the most vulnerable organs to injury during this reperfusion phase and varying degrees of cognitive impairment may be the end result. Inducing mild therapeutic hypothermia has been shown to be protective for the brain in this setting and has been demonstrated to improve neurological recovery. The evidence for this however, is only conclusive in cases where the arrest is in a shockable rhythm i.e. pulseless ventricular tachycardia and ventricular fibrillation.

In 2002, two randomized controlled trials were published showing an improvement in neurological outcomes in patients treated with mild therapeutic hypothermia post resuscitation from shockable cardiac arrest. Therapeutic hypothermia has since been widely adopted by most authorities as part of the comprehensive treatment bundle for post cardiac arrest syndrome. Whether there is any benefit for patients arrested in non-shockable rhythms however, is a matter of controversy. Some have reported improved mortality and better neurological outcomes with therapeutic hypothermia in this patient population. Others have reported no benefit or even a trend towards harm. And although the matter remains controversial, the recommendation still stands for therapeutic hypothermia to be offered for all comatose survivors of cardiac arrest whatever the arrest rhythm.

Most previous reports have examined the differences between shockable and non-shockable rhythms in terms of neurological outcome and mortality rates after therapeutic hypothermia. To our knowledge, no study has examined the differences in outcome between the two types of non-shockable rhythms, that is pulseless electrical activity (PEA) and asystole. We hypothesize that during PEA arrests, patients may retain some degree of cerebral perfusion and hence have better neurological outcomes post-resuscitation. That is in contrast to asystole where patients are likely to have no cerebral perfusion. In this study we attempt to detect any possible differences in neurological recovery (as indicated by the Cerebral Performance Category scale on hospital discharge) after therapeutic hypothermia, between patients arrested in PEA arrest and those arrested in asystole.

Studientyp

Beobachtungs

Einschreibung (Voraussichtlich)

400

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

  • Kanada
    • Ontario
      • London, Ontario, Kanada, N6A 5A5
        • University Hospital, London Health Sciences Centre, University of Western Ontario
      • London, Ontario, Kanada, N6A 5W9
        • Victoria Hospital, London Health Sciences Centre, University of Western Ontario

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre bis 90 Jahre (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Probenahmeverfahren

Nicht-Wahrscheinlichkeitsprobe

Studienpopulation

All patients admitted to the intensive care unit (ICU) with a diagnosis of postcardiac arrest between Jan 2008 and Dec 2012 will be examined.

Beschreibung

Inclusion Criteria:

  • Admission to adult ICU (age ≥18 years) at London Health Sciences Centre
  • Primary reason for ICU admission: postcardiac arrest
  • Both in-hospital and out-of-hospital cardiac arrest will be included
  • ICU admission between Jan 2008 and Dec 2012.

Exclusion Criteria:

- ICU admissions primarily for reasons other than cardiac arrest.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Beobachtungsmodelle: Kohorte
  • Zeitperspektiven: Retrospektive

Kohorten und Interventionen

Gruppe / Kohorte
Intervention / Behandlung
Shockable arrest
Initial arrest rhythm shockable. This is either pulseless ventricular tachycardia (pulseless VT) or ventricular fibrillation (VF).
Sonstiges: No treatment
No therapeutic hypothermia was induced.
Andere Namen:
  • No therapeutic hypothermia.
  • Kontrolle.
Sonstiges: Therapeutic hypothermia
Hypothermia was induced after successful resuscitation from cardiac arrest.
Andere Namen:
  • Unterkühlung
  • Induced hypothermia
  • Mild therapeutic hypothermia
  • Kühlung
  • Targeted temperature management
Pulseless electrical activity
Initial arrest rhythm is pulseless electrical activity.
Sonstiges: No treatment
No therapeutic hypothermia was induced.
Andere Namen:
  • No therapeutic hypothermia.
  • Kontrolle.
Sonstiges: Therapeutic hypothermia
Hypothermia was induced after successful resuscitation from cardiac arrest.
Andere Namen:
  • Unterkühlung
  • Induced hypothermia
  • Mild therapeutic hypothermia
  • Kühlung
  • Targeted temperature management
Asystole
Initial arrest rhythm is asystole.
Sonstiges: No treatment
No therapeutic hypothermia was induced.
Andere Namen:
  • No therapeutic hypothermia.
  • Kontrolle.
Sonstiges: Therapeutic hypothermia
Hypothermia was induced after successful resuscitation from cardiac arrest.
Andere Namen:
  • Unterkühlung
  • Induced hypothermia
  • Mild therapeutic hypothermia
  • Kühlung
  • Targeted temperature management

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Cerebral performance category score on hospital discharge
Zeitfenster: Upon discharge from hospital, assessed up to 36 months postcardiac arrest

Neurological outcome on discharge from hospital as defined by the cerebral performance category (CPC) scale. The CPC scale is a 5 point scale. The outcome measure will be dichotomized into good or bad. Good outcome will be equivalent to CPC scores of 1 & 2 (where the patient is independent), and bad outcome will be equivalent to CPC scores of 3, 4 & 5 (where the patient is either dependent or dead).

CPC Scale:

  1. Functioning normally and independent, possibly with a minor disability.
  2. Moderately disabled, still independent.
  3. Conscious but with a severe disability, dependent.
  4. Unconscious (comatose or in a persistent vegetative state).
  5. Brain dead or dead by traditional criteria.
Upon discharge from hospital, assessed up to 36 months postcardiac arrest

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Hospital length of stay postcardiac arrest
Zeitfenster: Days spent in hospital after successful resuscitation from cardiac arrest, assessed up to 36 months from the date of cardiac arrest
Hospital length of stay (LOS) post-cardiac arrest will be calculated from the day of the cardiac arrest to the day of hospital discharge. If prior to the arrest the patient was an inpatient, we will only count the days from the arrest to discharge. Days spent in hospital prior to the arrest will not be included.
Days spent in hospital after successful resuscitation from cardiac arrest, assessed up to 36 months from the date of cardiac arrest
Intensive care unit length of stay postcardiac arrest
Zeitfenster: Days spent in the intensive care unit after successful resuscitation from cardiac arrest, assessed up to 36 months from the date of cardiac arrest
The length of stay (LOS) in the intensive care unit (ICU) in days, after successful resuscitation from cardiac arrest.
Days spent in the intensive care unit after successful resuscitation from cardiac arrest, assessed up to 36 months from the date of cardiac arrest
Neurological status after hospital discharge
Zeitfenster: Assessed up to 12 months from hospital discharge
Neurological status as documented on the patient's first outpatient clinic visit, assessed up to 12 months from hospital discharge. This will be analyzed as a secondary outcome only if enough data is generated on chart review.
Assessed up to 12 months from hospital discharge

Andere Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Time to obeying commands
Zeitfenster: Assessed up to 21 days postcardiac arrest
Total time in days from the cardiac arrest until the patient is able to obey commands, as documented in the patient's chart.
Assessed up to 21 days postcardiac arrest
Documented negative neurological prognosticators
Zeitfenster: Upon withdrawal of life support, assessed up to 3 months postcardiac arrest

For patient's in which the reason for withdrawal of life support is poor neurological outcome, the number of negative neurological prognosticators recorded in the chart will be examined.

Examples of negative prognosticators include: negative somatosensory evoked potentials on post arrest day 3, post arrest status epilepticus, absent brain stem reflexes beyond post arrest day 2... etc.
Upon withdrawal of life support, assessed up to 3 months postcardiac arrest
Post arrest neurological investigations (including imaging studies)
Zeitfenster: Performed within 21 days from cardiac arrest
All neurological investigations done within 21 days from cardiac arrest will be examined including electroencephalograms, somatosensory evoked potentials, brain magnetic resonance imaging, brain computerized tomography (CT) scans... etc.
Performed within 21 days from cardiac arrest

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Lawson Health Research Institute

Mitarbeiter

University of Western Ontario, Canada

Ermittler

  • Hauptermittler: Eyad Althenayan, MD, Western University, Canada
  • Studienleiter: Philip Jones, MD, FRCPC, Western University, Canada
  • Studienstuhl: Bryan Young, MD, FRCPC, Western University, Canada
  • Studienleiter: Ahmed F Hegazy, MD, FRCPC, Western University, Canada
  • Studienleiter: Ana Igric, MD, FRCSC, Western University, Canada
  • Studienleiter: Carolyn Benson, MD, Western University, Canada

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Allgemeine Veröffentlichungen

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn

1. Januar 2014

Primärer Abschluss (Voraussichtlich)

1. Dezember 2014

Studienabschluss (Voraussichtlich)

1. Februar 2015

Studienanmeldedaten

Zuerst eingereicht

4. Januar 2014

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

9. Januar 2014

Zuerst gepostet (Schätzen)

13. Januar 2014

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Schätzen)

13. Januar 2014

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

9. Januar 2014

Zuletzt verifiziert

1. Januar 2014

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • 104666

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 .

Klinische Studien zur No treatment

Suchen Sie nach ähnlichen Studien

Sponsoren und Mitarbeiter

Krankheiten

Drogeninterventionen

CROs by country

CROs in Russia

Bedingungen

Seltene Krankheiten

Drogeninterventionen

Nahrungsergänzungsmittel

Sponsor / Mitarbeiter

Standorte

Abonnieren