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87 active trials for Cardiac Arrest

Influence of Morphine or Ketamine or Saline Applied During In-hospital Cardiopulmonary Resuscitation on Early Survival

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.

Start: October 2021
CT Perfusion (CTP) for Assessment of Poor Neurological Outcome in Comatose Cardiac Arrest Patients

ABSTRACT Brief Overview: Neurological assessment of comatose cardiac arrest patients (CCAP) is challenging because most of these patients are treated with sedatives and therapeutic hypothermia that prevent complete neurological/clinical assessment. A complete and reliable neurological assessment is needed for patient's long-term function and survival. A poor-quality clinical assessment results in resource-intensive treatment that may not benefit the patient. An ancillary test of head CT scan is often used for additional information. However, this additional information still limits the quality of the assessment. In a small pilot study, we explored an advanced CT scan of brain called CT Perfusion (CTP) relative to clinical assessment in CCAP as a predictor of neurological outcome (severe disability or death) at hospital discharge. The preliminary results suggested that CTP was both valid and reliable, relative to clinical assessment, while meeting many of the criteria of an ideal test (fast, safe, accessible, valid, reliable). This project aims to carry out a fully powered study to confirm these findings. The goal of this project is to validate CTP for predicting neurological outcome at hospital discharge in CCAP. We will conduct a prospective cohort study to validate the use of CTP in CCAP. Hypothesis- Computed Tomographic Perfusion (CTP) can reliably diagnose potentially fatal brain injury in CCAP in early stage upon hospital admission, which may or may not be recognized in the usual clinical practice due to inadequate clinical examination. Primary Objective: To validate CTP, relative to the reference standard of clinical assessment, for characterizing poor neurological outcome at hospital discharge in CCAP. Secondary Objectives: To establish the safety and inter-rater reliability of CTP in CCAP.

Start: May 2021
A Comparative Study Between a Pre-hospital and an In-hospital Circulatory Support Strategy (ECMO) in Refractory Cardiac Arrest (APACAR2)

Cardiac arrest (CA) affects approximately 40,000 people in France. It is still a major cause of death in a young population. Management of CA is defined by international recommendations, detailed by learned societies in each country. It includes several links that are interconnected for its optimisation. Despite all these improvements, no progress, or little has been made in the survival of CA victims over the past few years in industrialised countries, and the survival rate in France is 3% to 5%. Refractory cardiac arrest is defined as failure, after 30 minutes of specialised resuscitation. It used to be the standard to admit that there was no hope of spontaneous cardiac activity and satisfactory neurological recovery after this period, except in cases of CA with neuroprotection (intoxication, hypothermia). External circulatory support such as "extracorporeal membrane oxygenation" (ECMO) makes it possible to replace the circulatory activity of the myocardium and the respiratory activity of the lungs. In in-hospital cardiac arrest (CA) some teams use ECMO with an improvement in the survival rate of 20% in comparison to standard resuscitation. This use demonstrates the possibility of neurological recovery independent of the recovery of spontaneous cardiac activity which can be differed. These results encouraged the use of ECMOs in cases of out-of-hospital refractory cardiac arrests. Patients who are victims of CA are resuscitated for 30 minutes on the spot where the CA occurs. They are then transferred to a specialised centre. The significant improvement in survival noted in in-hospital CAs was not observed in the French series of studies concerning out-of-hospital CAs. This survival is currently estimated at 4%. This difference can be partly explained by the difference in time between the beginning of cardiac massage and the implementation of circulatory support by ECMO ("low flow" period). This time period is directly correlated to survival. To demonstrate the superiority of this strategy in terms of survival, investigators would like to conduct a randomised comparative study of two strategies: 1) installation of an ECMO between the 20th minute to the 30 minute of CA, directly at the site of the CA, by emergency physicians and/or specifically trained resuscitators 2) On-site resuscitation optimised with secondary transfer to the hospital for the implementation of support. The purpose is to increase by 5% to 20% the survival of victims of out-of-hospital refractory cardiac arrests with a good neurological prognosis. Main objective: The hypothesis is that pre-hospital ECMO will result in survival for 20% of the patients, considering that the percentage of survival with in-hospital ECMO is less than 5%. Main judgement criterion: Survival with good neurological outcome (CPC 1 or 2) on discharge from intensive care or at 6 months Secondary judgement criteria: Success rate of the implementation of ECMO ECMO implementation time Immediate complications: haemorrhage, infection Number of organ harvesting The quality of survivors' neurological status according to the CPC neurological classification at D 28, 2 months and 1 year Predictive indicators of the prognosis during cardiac arrest via cerebral and biological monitoring Methodology, type of study: This is a prospective randomised study of current care Sample size (SS, power, risk): A total number of 105 patients in each group will make it possible to demonstrate at the alpha risk of 5% and a power of 1-?=90%, a significant difference in favour of early pre-hospital ECMO compared to the current practice with in-hospital ECMO.

Start: March 2016
The Rescuer Fatigue During Cardiopulmonary Resuscitation in Manikin by Using Personal Protective Equipment.

Background: High-quality cardiopulmonary resuscitation is the key to recovering patients with sudden cardiac death. However, when the environment is exposure to biologic hazard, the medical personnel need to use different personal protective equipment while doing CPR, and this difficulty is greatly increased. The research on this part is quite limited, and the results need to be further analyzed. Purpose: Compare the effects of CPR wearing different levels of personal protective equipment on CPR quality and rescue fatigue. Material & Methods: This study is designed as a prospective randomized crossover trial with an expected total of 40 volunteer participants, performed during 2021 April 1 to 2021 June 30. Each participant is required to perform a five-minute CPR in kneeling position using three different types of personal protective equipment. These three modes are Level D protective equipment with surgical mask, Level C protective equipment with N-95 mask, and Level-C protective equipment with Powered Air Purifying Respirator. Participants are physicians or nurses at the hospital. The participation are randomly assigned to the order of the three modes, and each mode can be rested for 120 minutes. Laerdal Skillreporter is used for CPR and quality measurement. The main results were effective chest compression ratio, correct chest depth ratio, correct chest recoil ratio and chest compression number per minute. The secondary results were personal blood pressure before and after the CPR, heartbeat, pulse oximeter, number of breaths, and subjective fatigue index (VAS 1 ~ 100 points), Questionnaire for the opinion of wearing personal protective equipment and using the porta count test to test the N-95 face mask for its quantitative fitness factor before and during CPR, and infrared detector for qualitative fitness test.

Start: April 2021
One Year Follow-up After Rescuscited Cardiac Arrest

While 80 % of all sudden cardiac death (SCD) result from coronary artery disease (CHD) approximatively 2/3 of SCD occur as a first manifestation of the CHD. VF (ventricular fibrillation) is the main cause of SCD in acute coronary syndrome (ACS), and the 2017 ESC Guidelines for the management of acute myocardial infarction, recommended direct admission to the catheterization laboratory in survivors of out of hospital cardiac arrest (OHCA) with criteria for STEMI on the post-resuscitation electrocardiogram (ECG) (Class I, grade B). However, During the past few years, the number of immediate coronary angiography (CA) for suspected ACS in patients presenting an OHCA increased, with a survival rate at discharge in this subgroup of patients better, about 60 to 80% (1). However, the survival rate remains poor in the global population of OHCA and some survivors patients may have neurological sequelles, related to global anoxia consequences or altered quality of life related to cardiac function impairement . While the survival rate at hospital discharge is well known, the investigators have few data on long term outcomes , particularly regarding cardiac and neurological states. Therefore the main objective of this study is to evaluate prospectively, in an observational study, the one-year prognosis of patients with rescuscited OHCA in whom a CA for suspected ACS was performed in the university hospital of Montpellier. Only patients alive at discharged are considered for the follow-up to eliminate the in-hospital mortality . The investigators aim to assess year neurological status using medical questionnaires at one year follow-up(primary end point). The investigators hypothesize that 10% of patients will discharged alive from hospital with severe neurological sequelae at 1 year.Secondary end point will evaluate cardiac status, quality of life and pronostic factors of adverse outcome.

Start: August 2019