View clinical trials related to Heart Arrest.
Filter by:Hypoxic ischemic brain injury (HIBI) is the ensuing brain injury after cardiac arrest and is the primary cause of adverse outcome. HIBI is caused by low oxygen delivery to the brain. The patient's blood pressure is primary determinant of oxygen delivery to the brain. International guidelines recommend maintaining uniform blood pressure targets in all patients, however, this 'one size fits all approach' fails to account for individual baseline differences between patient's blood pressures and extent of underlying disease. Recently, 'autoregulation monitoring', a novel brain monitoring technique, has emerged as a viable tool to identify patient specific blood pressures after brain injury. This personalized medicine approach of targeting patient specific blood pressure (MAPopt) is associated with improved outcome in traumatic brain injury. It has not been evaluated in HIBI after cardiac arrest. Recently, I completed a first-in-human study demonstrating the ability to identify MAPopt in HIBI patients using neuromonitoring (microcatheters inserted into the brain tissue). The proposed study in this grant is to take the next step and investigate the changes in key brain physiologic variables (brain blood flow and oxygenation) before and after therapeutically targeting MAPopt in HIBI patients. This interventional study will serve as the basis to embark on a pilot randomized control trial of MAPopt targeted therapy versus standard of care in HIBI patients after cardiac arrest.
In 2014, the authors conducted a survey of key opinion leaders on ethical resuscitation practices in 31 European Countries. The authors administered a comprehensive questionnaire to 1-2 ʺexpertsʺ from each country; subjectivity-related bias could not be excluded; however, the questionnaire was actually administered twice over a 6-month period to all participants, in order to confirm results' reproducibility. The questionnaire spanned across the following 4 domains: A: ethical practices (41 questions); B: access to best available care (39 questions); C: death diagnosis and organ donation (22 questions); and D: emergency care organization (40 questions). Accordingly, a 142-point scoring system of the responses of the participants was developed. Country-specific scores varied widely [e.g. score range of 1-41 for the ethical practices (domain A), and of 9-32 for emergency care organization (domain D)]. The authors also found a significant association between domain A and domain D scores (r2 = 0.42, P < 0.001). The results of the 2014 survey highlighted variability across European countries in their approach to the ethics of resuscitation/end-of-life care. Results also indicated the presence of substantial need for improvements in all the aforementioned domains of practice and emergency care organization On the other hand, such evolution should be substantially augmented and accelerated by the above-described combination of new guidelines, RCT-based support of ACP, legislation / governmental policies, and educational activities. With this study the authors undertake a methodologically improved version of the 2014 survey, in order to test the following hypotheses: 1) compared to 2014, there may be significant improvements in overall domain A to D scores for 2019, reflecting improved quality of ethical practice in the field of resuscitation/end-of-life care; 2) such progress, may be more marked in countries with ʺlowʺ (i.e. below-average) domain A to D scores for 2014.
In this study, the investigators compared mechanical and manual chest compressions in out-of-hospital cardiac arrest cases.
The main objective of the trial is to find out if there is correlation between cerebral and skeletal muscle oxygenation values during cardiopulmonary resuscitation and if these values can predict return of spontaneous circulation. The investigators would like to find out which values, first measures, average, maximal, are better predictor of return of spontaneous circulation. All the patients with nontraumatic cardiac arrest in prehospital environment will be enrolled in the study. The measurements will be taken with NIRS device and special electrodes, which will be placed on patient's forehead and thenar eminence od right hand. No ALS procedure will be modified.
Venoarterial extracorporeal membrane oxygenation (VA ECMO)—also referred to as extracorporeal life support—is a form of temporary mechanical circulatory support and simultaneous extracorporeal gas exchange. The objective of this observational, cohort study is to evaluate the short-term and long-term outcomes of patients with VA ECMO.
Compare the performance of the Reconfirmation Analysis Mode algorithm to the performance goals recommended by the American Heart Association.
The objective of the Lowlands Saves Lives trial is to compare the quality of cardiopulmonary resuscitation (CPR) between face-to-face versus Lifesaver Virtual Reality smartphone application trained participants using a randomized controlled trial.
A small numbers of patients (10-15%) treated with cardiopulmonary resuscitation (CPR) are discharged from hospitals with a favorable neurologic outcome. However, a higher incidence of chest injuries (30-70%), mainly rib and sternum fractures, are observed among the survivors. It's no surprise that 6 months after cardiac arrest (CA) 50-70% of the patients who have survived continue to have pain and stress-related problems. Based on the need for the pain/stress treatment in these patients and several experimental evidences demonstrating neuroprotective features of anesthetics it is logical to presume that application of anesthesia during CPR may be indicated. In rodents exposed to hypoxic gas (5% 02, 95% N2) for 70 min, all seven animals died at the end of the experiments in the naloxone pre-treated group while only one out of seven rats died in the morphine pre-treated group, and five of seven rats died in the control group. In human volunteers, intravenously administered 60 mg of morphine did not alter cerebral blood flow and cerebral vascular resistance but markedly depressed cerebral oxygen uptake. Interestingly, in critical patients, morphine even in low doses is effective in relieving dyspnea by altering central perception and decreasing anxiety. In rats, morphine demonstrates dose- depending reduction of cerebral glucose utilization in limbic and forebrain regions. Thus, the main points of application for morphine in treatment of CA may be a reduction of oxygen/glucose consumption. Pre-treatment of zebrafish with ketamine protects against cardiac arrest-induced brain injury by inhibiting Ca2+ wave propagation and consequently it improves survival rate. Inhibition of NMDA receptors by ketamine reduces neuronal apoptosis and attenuates the systemic inflammatory response to tissue injury. The sympathomimetic effects of ketamine may facilitates recovery of systemic blood pressure during CPR. Retrospective investigations demonstrate that patients who are treated with opioids before or during CA have a statistically significantly higher survival rate and much better neurological outcome compared to untreated patients. Experimental studies have a limitation as all animals are treated with anesthesia and therefore survival rate varies between 50-90%. Thus, prospective research is urgently needed to investigate the influence of morphine or/and ketamine on survival and neurological outcome in patients with CA.
The main objective of the trial is to find out if 4-hour continuous infusion of parenteral P2Y12 inhibitor cangrelor at the start of primary percutaneous coronary intervention (PCI) immediately and effectively suppresses platelet activity in comatose survivors of out-of-hospital cardiac arrest (OHCA). Half of the participants will receive the standard care of dual antiplatelet therapy - acetysalicylic acid and ticagrelor tablets via nasogastric or orogastric tube and the other half the standard care with additional cangrelor infusion at the start of the PCI.
Hypoxic-ischaemic brain injury (HIBI) is the main cause of death in patients who are comatose after resuscitation from cardiac arrest. Current guidelines recommend to target a mean arterial pressure (MAP) above 65 mmHg to achieve an adequate organ perfusion. Moreover, after cardiac arrest, cerebral autoregulation is dysregulated and cerebral blood flow (CBF) depends on the MAP. A higher blood pressure target could improve cerebral perfusion and HIBI. Transcranial Doppler (TCD) is a non-invasive method to study CBF and its variations induced by MAP. The aim of this study is to test the feasibility of an early-goal directed hemodynamic management with TCD during the first 12 hours after return of spontaneous circulation (ROSC).