View clinical trials related to Out-of-hospital Cardiac Arrest.
Filter by:A prospective study validating the role of the MIRACLE2 score in patients with resuscitated out of hospital cardiac arrest in a pre-hospital setting.
Neither the international nor the interregional variation in survival following OHCA is fully understood, but may rely on multiple factors such as: organization of the Emergency Medical Service (EMS) system bystander cardiopulmonary resuscitation (CPR), the use of Automatic External Defibrillators (AED's), response time, and which subgroups are included as the denominator, (i.e. obvious dead, withholding of resuscitation). Variation in denominators provide an obstacle when comparing outcome between different EMS-systems. Studies have found that Utstein factors explained half of the variation in survival to hospital discharge among different EMS agencies highlighting the importance of further research. Due to the high mortality rate of OHCA, the decision of withholding or withdrawing resuscitative efforts must be made frequently. We find that a description of the differences in initiation and termination of resuscitation of adult patients (>18 years of age), suffering from non-traumatic OHCA could add an important perspective on the impact of differences in EMS systems across the World regarding the outcome following OHCA.
This study evaluate the association of some in-ICU factors with the neurological prognosis of patients admitted for an out-of-hospital cardiac arrest due to a myocardial infarction.
Out-of-hospital cardiac arrest (OHCA) is one of the leading cause of death in the world. In Slovenia approximately 25% of resuscitated patients survives to discharge from hospitals, usually with poorer functional status. One of key pathophysiological process responsible for poorer functional status is global hypoxic-ischemic injury, which is two-stage. Primary stage occurs immediately after cardiac arrest due to cessation of blood flow. With return of spontaneous circulation a secondary injury occurs, of which the leading process is an imbalance between oxygen delivery and consumption. Reperfusion exposes ischemic tissue to oxygen, resulting in the formation of large amounts of highly reactive oxygen species (ROS) within minutes. ROS lead to oxidative stress, which causes extensive damage to cell structures and leads to cell death. Consequently, necrosis and apoptosis are responsible for organ dysfunction and functional outcome of these patients. Such injury of neural tissue causes brain damage, which is ultimately responsible for poor neurological and thus functional outcome of OHCA survivors. The extent of brain damage can be determined in several ways: clinically by assessing quantitative and qualitative consciousness and the presence of involuntary movements in an unconscious patient, by assessing activity on electroencephalographic record, by imaging of the brain with computed tomography and magnetic resonance imaging, as well as by assessing levels of biological markers of brain injury. Of the latter, the S-100b protein and neuron-specific enolase have been shown to be suitable for such assessment. Oxidative stress is counteracted by the body with endogenous antioxidants that balance excess free radicals and stabilize cellular function. Vitamin C (ascorbic acid) is the body's main antioxidant and is primarily consumed during oxidative stress. Large amounts of ROS rapidly depletes the body's vitamin C stores. Humans cannot synthesise vitamin C and enteral uptake of vitamin C is limited by transporter saturation. On the other hand, parenteral (venous) dosing of vitamin C can achieve concentrations of vitamin C above physiological and thus produce a stronger antioxidant effect. The beneficial effect of parenteral dosing of vitamin C has been establish in several preclinical and clinical studies in patients with ischemic stroke and cardiac arrest. The investigators hypothesize that there is a similarly beneficial effect of vitamin C in survivors of OHCA.
Rational: Out of hospital cardiac arrest is a devastating event with a high mortality. Survival rates have increased over the last years, with the availability of AED's and public BLS. Previous studies have shown that deranged physiology after return of spontaneous circulation (ROSC) is associated with a worse neurological outcome. Good quality post-arrest care is therefore of utmost importance. Objective: To determine how often prehospital crews (with their given skills set) encounter problems meeting optimal post-ROSC targets in patients suffering from OHCA, and to investigate if this can be predicted based on patient-, provider- or treatment factors. Study design: Prospective cohort study of all patients attended by the EMS services with an OHCA who regain ROSC and are transported to a single university hospital, in order to identify those patients with a ROSC after a non-traumatic OHCA who had deranged physiology and/or complications from OHCA EMS personnel was unable to prevent/deal with in the prehospital environment. Study population: Patients, >18 years, transported by the EMS services to the ED of the University Hospital Groningen (UMCG) with a ROSC after OHCA in a 1 year period Main study parameters/endpoints: Primary endpoint of our study is the percentage of OHCA patients with a prehospital ROSC who arrive in hospital with either a deranged physiology or with complications from OHCA EMS personnel was unable to deal with.
This is a pilot study that will lead to a large randomized control trial (RCT), to assess whether early versus late or no cardiac catheterization is associated with improved outcomes in out-of-hospital cardiac arrest (OHCA) patients.
Out-of-hospital cardiac arrests (OHCA) account for over 60% of deaths from coronary artery disease. The annual incidence of OHCA treated by Emergency Medical Systems (EMS) is 41-89 per 100,000 population. Outcome of OHCA and cardiopulmonary resuscitation (CPR) is very poor: Less than 1/3 of the victims regain spontaneous circulation (ROSC), 40-60% of those achieving ROSC suffer significant neurological disability due to brain hypoxia and only 1.7-6.4% are discharged from the hospital. In order to minimize hypoxia time, the primary goal of CPR is to achieve return of spontaneous circulation (ROSC) as fast as possible. Metabolic (lactic) acidosis develops rapidly during CA and is considered detrimental to CPR outcome. Sodium bicarbonate (SB), a generic, commonly used acid buffer, was subjected only to a single, small, prospective controlled trial that found a trend towards improved outcome in prolonged OHCA and CPR. Another study indicated that EMS's that used SB early and often during CPR had significantly higher ROSC rates and better long-term outcome compared with EMS's that used SB more seldom and administered it late in the course of CPR. Aim of the Study: To determine whether early administration of SB during OHCA and CPR improves short-term CPR outcome.
Sudden cardiac death is the most frequent cause of death in industrialized countries. The most efficient interventiont in ventricular fibrillation is defibrillation in an appropriate timely manner. But since the intervention of defibrillation the optimal shock energy is unknown. As a too low energy is not able to terminate ventricular fibrillation a too high energy may cause asystole wich jeopardizes survival itself. We study the efficacy of different shock energies on the termination of ventricular fibrillatiion and survival.