Clinical Trials Logo

Clinical Trial Summary

Background: Sedation and therapeutic hypothermia (TH) delay neurological responses and might reduce the accuracy of clinical examination to predict outcome after cardiac arrest (CA). Electroencephalography (EEG) and somato-sensory evoked potentials (SSEP) might significantly improve prognostication of post-CA coma, however, EEG and SSEP are not always available and require specific expertise for their interpretation. Automated video pupillometry is a novel electronic device that contains an infrared light camera which enables to measure quantitatively the percentage of pupillary reaction to a calibrated light stimulation. In a recent study of a cohort of comatose CA survivors (n=50 patients) it was found that quantitative PLR was more accurate than standard PLR (manual pen light) in predicting 3-month outcome, irrespective of temperature and sedation, and had comparable prognostic accuracy than electrophysiological exams, including electroencephalography (EEG) and somato-sensory evoked potentials (SSEP). Aim of the study: In light of these promising results, the investigators would like to confirm the prognostic value of quantitative PLR in a large multicenter cohort of comatose post-CA patients. Design of the study: Prospective, multicenter, observational outcome trial.


Clinical Trial Description

Study: Prospective, multicenter study. The study will be double-blinded, i.e. the clinician/nurse performing the tests will not be involved in patient care and clinicians in charge of patients will not be aware of automated pupillometry data. Patient care will not be influenced by pupillometry. Patient population: The investigators plan to include 500 comatose post-CA patients. The centers have been selected based on their expertise and publication track record on the topic, and because they are actively involved in the Neurointensive Care section (NIC) of the European Society of Intensive Care Medicine (ESICM). The study will take place at the Department of Intensive Care of the participating centers. Patients will be managed according to standards of post-resuscitation care and based on local algorithms for the treatment of post-CA coma. Quantitative pupillary light reactivity (PLR, using the NeurOptics NPi-200 pupillometer) will be performed on ICU admission and then every 12 hours up to 72 hours after CA. At each time point, one measurement will be assessed on both eyes. The primary variables for analysis will be the neurological pupil index (NPi) and the pupil size for both eyes. Standard PLR using a manual pen light will be performed simultaneously at each time point, as part of standard care. EEG, SSEP and sampling for serum neuron specific enolase (NSE) will be performed at 24h and at 48-72h, according to local practices and as part of standard care. The predictive value of NPi will be analyzed using the area under the receiving operator characteristics (ROC) curve, and compared to that of standard PLR, EEG, SSEP and NSE: sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), unweighted accuracy, with 95% binomial confidence intervals, will be calculated. Associations with outcome will adjusted for main baseline demographics (age, initial CA arrest rhythm, time from CA to tROSC), dose of sedation-analgesia and vaso-active agents, and the SOFA score, using a logistic regression model. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02607878
Study type Observational
Source Centre Hospitalier Universitaire Vaudois
Contact
Status Completed
Phase
Start date January 2015
Completion date July 2017

See also
  Status Clinical Trial Phase
Recruiting NCT06048068 - Removing Surrogates' Uncertainty to Reduce Fear and Anxiety After Cardiac Events N/A
Recruiting NCT05558228 - Accuracy of Doppler Ultrasound Versus Manual Palpation of Pulse in Cardiac Arrest
Completed NCT03685383 - Cytokine Adsorption in Post-cardiac Arrest Syndrome in Patients Requiring Extracorporeal Cardiopulmonary Resuscitation N/A
Completed NCT04619498 - Effectiveness of an Interactive Cognitive Support Tablet App to Improve the Management of Pediatric Cardiac Arrest N/A
Completed NCT04584645 - A Digital Flu Intervention for People With Cardiovascular Conditions N/A
Not yet recruiting NCT05649891 - Checklists Resuscitation Emergency Department N/A
Withdrawn NCT02352350 - Lactate in Cardiac Arrest N/A
Completed NCT03024021 - Cerebral Oxymetry and Neurological Outcome in Therapeutic Hypothermia
Completed NCT02247947 - Proteomics to Identify Prognostic Markers After CPR and to Estimate Neurological Outcome
Completed NCT02275234 - Care After Resuscitation
Completed NCT01944605 - Intestinal Ischemia as a Stimulus for Systemic Inflammatory Response After Cardiac Arrest N/A
Completed NCT01936597 - Prospective Study of 3 Phone Assistance Strategies to Achieve a Continuous Cardiac Massage N/A
Completed NCT01972087 - Simulation Training to Improve 911 Dispatcher Identification of Cardiac Arrest N/A
Active, not recruiting NCT01239420 - Norwegian Cardio-Respiratory Arrest Study
Completed NCT00880087 - Therapeutic Hypothermia to Improve Survival After Cardiac Arrest in Pediatric Patients-THAPCA-IH [In Hospital] Trial N/A
Completed NCT01191736 - Ultra-Brief Versus Brief Hands Only CPR Video Training With and Without Psychomotor Skill Practice N/A
Completed NCT00878644 - Therapeutic Hypothermia to Improve Survival After Cardiac Arrest in Pediatric Patients-THAPCA-OH [Out of Hospital] Trial Phase 3
Completed NCT00729794 - Vasopressin, Epinephrine, and Steroids for Cardiac Arrest Phase 3
Recruiting NCT00441753 - Cerebral Bloodflow and Carbondioxide Reactivity During Mild Therapeutic Hypothermia in Patients After Cardiac Arrest N/A
Completed NCT00347477 - Fluid Shifts in Patients Treated With Therapeutic Hypothermia After Cardiac Arrest Phase 3