Active clinical trials for "Out-of-Hospital Cardiac Arrest"

This study aims to investigate the efficacy and safety of Neu2000KWL, a neuroprotectant, in patients resuscitated from out-of-hospital cardiac arrest and receiving therapeutic hypothermia.

Sudden out-of-hospital cardiac arrest (OHCA) is a leading cause of death in Australia. The most common cause of OHCA is a heart attack. The current treatment of OHCA is resuscitation by ambulance paramedics involving CPR, electrical shocks to the heart, and injections of adrenaline. In more than 50% of cases, paramedics are unable to start the heart and the patient is declared dead at the scene. Patients with OHCA who do not respond to paramedic resuscitation are not routinely transported to hospital because it is hazardous for paramedics to undertake rapid transport whilst administering chest compressions and there is currently no additional therapy available at the hospital that would assist in starting the heart. However, a number of recent developments suggest that there may be a new approach to the resuscitation of this group of patients who would otherwise die. Firstly, Ambulance Victoria have recently introduced portable battery powered machines that allow chest compressions to be safely and effectively delivered during emergency ambulance transport. Second, The Alfred ICU will shortly be implementing a new protocol whereby the patient in cardiac arrest can immediately be placed on a heart-lung machine. This is known as extra-corporeal membrane oxygenation (ECMO). Third, the brain can now be much better protected against damage due to lack of blood flow using therapeutic hypothermia which is the controlled lowering of body temperature from 37°C to 33°C. Clinical trials have demonstrated that this significantly decreases brain damage after OHCA. Finally, The Alfred Cardiology service has an emergency service for reopening the blocked artery of the heart in patients who present with a sudden blockage of the heart arteries. This is currently not used in patients without a heart beat because of the technical difficulty of undertaking this procedure with chest compressions being undertaken. This study proposes for the first time to implement all the above interventions when patients have failed standard resuscitation after OHCA. When standard resuscitation has proved futile, the patient will be transported to The Alfred with the mechanical chest compression device, cooled to 33°C, placed on ECMO, and then transported to the interventional cardiac catheter laboratory. The patient will then receive therapeutic hypothermia for 24 hours. Subsequent management will follow the standard treatment guidelines of The Alfred Intensive Care Unit.

Background: Intraosseous (IO) access is a new, fast, safe and efficient route of rescue of critically ill patients. Studies found drug pharmacokinetics and pharmacodynamics of IO are similar to IV route. Compared with IV and CVC, IO is time-consuming, easy to grasp, and has high operation success rate. Guidelines recommend IO when the establishment of vascular access is difficult or impossible. Recent animal studies suggest that IO access have better ventricular fibrillation termination rates, ROSC rates and survival compared with IV route. However, recent retrospective clinical studies found that IO versus IV treatment was associated with a lower likelihood of ROSC and hospitalization. How routes of vascular access influence clinical outcomes after OHCA merits multicenter randomized controlled trial. We suppose IO versus IV treatment is associated with a higher likelihood of ROSC and hospital and discharge survival. Materials and methods: Study design This study is a prospective, open, two-arm, multicenter randomized controlled trial. The study will be conducted by 22 medical centers or affiliated hospitals in China. We will enroll nearly 2356 OHCA patients by the eligibility and exclusion criteria during January 2020 to December 2022. All of the patients will be randomized to one of 2 routes of vascular access: tibial intraosseous or peripheral intravenous. Other treatment measures of two groups refer to 2015 AHA Advanced Cardiovascular Life Support guidelines. Statistical analysis Intention-to-treat analysis (ITT) and per-protocol set (PPS) sensitivity analysis will be conducted in our study. Categorical variables are presented as counts and percentages, and differences are analyzed using the χ2 test. Continuous variables are presented as means with standard deviations or median (interquartile range [IQR]), and analysis is done by the Student t test or the Mann-Whitney U test according to normal or non-normal distributions. Sample Size Calculation Set the following assumptions: alpha 0.025, beta 80%, clinically significant difference of 5% and 25% ROSC rate for both arms. Assuming the sample has an equal number of subjects in each arm, the study need to include at least 1178 subjects per arm to reach statistical significance.

Steroid use could be considered for patients with weaker adrenal function among those with post-cardiac arrest (CA) return of spontaneous circulation (ROSC), according to the former study. This finding is consistent with the medical background of this present study. This study will be the first to investigate these additional drugs of injection and associated prognosis in cardiac arrest (CA) patients outside the hospital, providing significant basic data.

People who suffered a cardiac arrest are often have cognitive impairments. In this study the investigators test the effectiveness of an intervention, combining direct training and metacognitive training, in a single case experimental design (SCED).

The Reduction of oxygen after cardiac arrest (EXACT) is a multi-centre, randomised, controlled trial (RCT) to determine whether reducing oxygen administration to target an oxygen saturation of 90-94%, compared to 98-100%, as soon as possible following successful resuscitation from OHCA improves outcome at hospital discharge.

This is a randomized controlled prospective study which assigned patient to receive manual CPR or automatic CPR machine use. The quality and efficacy between manual CPR and machine CPR will be evaluated.

Medical call center have no phone advice protocol within out of hospital cardiac arrest in France. The purpose of the present study is to compare a group of patients with protocol phone advice delivered by the dispatchers ("CONTARM" group) versus usual phone advice ( "CONTHAB" group). Comparison will be performed on survival to seven days. The hypothesis is that CONTARM group has an higher survival at seven days. A second goal is to measure the survival to 15 and 30 days. The trial is randomized, controlled and will include 2600 patients. The patients will be enrolled in 19 hospitals in France.

Post-cardiac arrest ischemia/reperfusion phenomenon led to organs injury and failure. Among the different organs, gastro-intestinal tract injury could contribute to post-cardiac arrest shock. The ischemic injury of the gastro-intestinal (GI) tractus is suggested by abnormalities in digestive biomarkers and by the frequent endotoxemia after CA. However, direct mucosal damage has not been clearly demonstrated after OHCA. The real incidence of ischemic lesions of GI tract and their potential involvement in the post-CA shock is therefore unknown. We propose an original clinical research program aimed at rigorously determining the incidence of upper GI lesions after OHCA and analyzing their contribution to the severity of post-CA shock through a prospective, interventional, multicentric study

Out-of-hospital arrest can occur from multiple etiologies. In patients without an obvious reason for the sudden-death event, diagnostic evaluation is not clear. This study is to determine if early imaging with a head-to-pelvis CT scan may improve diagnostic accuracy, speed of diagnosis and potentially clinical outcomes.