CEASE: A Guide for Clinicians on How to Stop Resuscitation Efforts

In-hospital cardiac arrest characteristics, causes and outcomes in patients with cardiovascular disease across different departments: a retrospective study

BACKGROUND

Cardiac etiologies arrest accounts for almost half of all in-hospital cardiac arrest (IHCA), and previous studies have shown that the location of IHCA is an important factor affecting patient outcomes. The aim was to compare the characteristics, causes and outcomes of cardiovascular disease in patients suffering IHCA from different departments of Fuwai hospital in Beijing, China.

METHODS

We included patients who were resuscitated after IHCA at Fuwai hospital between March 2017 and August 2022. We categorized the departments where cardiac arrest occurred as cardiac surgical or non-surgical units. Independent predictors of in-hospital survival were assessed by logistic regression.

RESULTS

A total of 119 patients with IHCA were analysed, 58 (48.7%) patients with cardiac arrest were in non-surgical units, and 61 (51.3%) were in cardiac surgical units. In non-surgical units, acute myocardial infarction/cardiogenic shock (48.3%) was the main cause of IHCA. Cardiac arrest in cardiac surgical units occurred mainly in patients who were planning or had undergone complex aortic replacement (32.8%). Shockable rhythms (ventricular fibrillation/ventricular tachycardia) were observed in approximately one-third of all initial rhythms in both units. Patients who suffered cardiac arrest in cardiac surgical units were more likely to return to spontaneous circulation (59.0% vs. 24.1%) and survive to hospital discharge (40.0% vs. 10.2%). On multivariable regression analysis, IHCA in cardiac surgical units (OR 5.39, 95% CI 1.90-15.26) and a shorter duration of resuscitation efforts (≤ 30 min) (OR 6.76, 95% CI 2.27-20.09) were associated with greater survival rate at discharge.

CONCLUSION

IHCA occurring in cardiac surgical units and a duration of resuscitation efforts less than 30 min were associated with potentially increased rates of survival to discharge.

Five Hours of Resuscitation With 150 Electrical Shocks and Complete Recovery

Background: Myocardial ischemia may lead to lethal arrhythmias. Treatment of these arrhythmias without addressing the cause of ischemia may be futile. The length of resuscitation is an important parameter for determining when to stop resuscitation but with shockable rhythms and reversible cause of the cardiac arrest, the decision to terminate resuscitation is complex. 

Case Summary: A patient with a three-month history of shortness of breath with effort developed pulseless ventricular tachycardia (VT) at the early stages of a stress test. In coronary angiography, a critical lesion in the right coronary artery (RCA) was observed and treated with two stents. During the procedure and for a total of five hours, the patient had more than 100 separate episodes of VT and ventricular fibrillation (VF) that were treated by 150 defibrillations, artificial ventilation, intra-aortic counter-pulsation balloon insertion, and multiple drugs. One hour after the initial stenting procedure, thrombosis of the RCA was demonstrated and treated successfully with angioplasty. Use of procainamide resolved the arrhythmias and the patient recovered completely without neurological deficit, ejection fraction of 45%, and is asymptomatic at one year following the event.

Discussion: Our case shows that with a revisable cause of cardiac arrest, resuscitation should be directed at maintaining perfusion of essential organs and treating the reversible cause. Without re-opening the RCA, we could not have saved the patient's life. The use of an extracorporeal membrane oxygenator, if available, should be considered in similar cases. Finally, the quality of cardiopulmonary resuscitation determines the neurological outcome regardless of the length of resuscitation, as was evident in our patient who recovered completely.

European Resuscitation Council Guidelines 2021: Newborn resuscitation and support of transition of infants at birth

The European Resuscitation Council has produced these newborn life support guidelines, which are based on the International Liaison Committee on Resuscitation (ILCOR) 2020 Consensus on Science and Treatment Recommendations (CoSTR) for Neonatal Life Support. The guidelines cover the management of the term and preterm infant. The topics covered include an algorithm to aid a logical approach to resuscitation of the newborn, factors before delivery, training and education, thermal control, management of the umbilical cord after birth, initial assessment and categorisation of the newborn infant, airway and breathing and circulation support, communication with parents, considerations when withholding and discontinuing support.

[Newborn resuscitation and support of transition of infants at birth]

The European Resuscitation Council has produced these newborn life support guidelines, which are based on the International Liaison Committee on Resuscitation (ILCOR) 2020 Consensus on Science and Treatment Recommendations (CoSTR) for Neonatal Life Support. The guidelines cover the management of the term and preterm infant. The topics covered include an algorithm to aid a logical approach to resuscitation of the newborn, factors before delivery, training and education, thermal control, management of the umbilical cord after birth, initial assessment and categorisation of the newborn infant, airway and breathing and circulation support, communication with parents, considerations when withholding and discontinuing support.

COVID-19 disease: Resuscitation

COVID-19 is a complex disease which has challenged the way in which care is provided. Cardiopulmonary resuscitation (CPR) is recognized as a potential aerosol-generating procedure, in consequence, a modified advanced life support approach needs to be followed. This article describes the actions for an adult in cardiac arrest with suspected of confirmed COVID-19 disease in a hospital setting.

Study of the Effects of 3 h of Continuous Cardiopulmonary Resuscitation at 27°C on Global Oxygen Transport and Organ Blood Flow

Aims

Complete restitution of neurologic function after 6 h of pre-hospital resuscitation and in-hospital rewarming has been reported in accidental hypothermia patients with cardiac arrest (CA). However, the level of restitution of circulatory function during long-lasting hypothermic cardiopulmonary resuscitation (CPR) remains largely unknown. We compared the effects of CPR in replacing spontaneous circulation during 3 h at 27°C vs. 45 min at normothermia by determining hemodynamics, global oxygen transport (DO₂), oxygen uptake (VO₂), and organ blood flow.

Methods

Anesthetized pigs (n = 7) were immersion cooled to CA at 27°C. Predetermined variables were compared: (1) Before cooling, during cooling to 27°C with spontaneous circulation, after CA and subsequent continuous CPR (n = 7), vs. (2) before CA and during 45 min CPR in normothermic pigs (n = 4).

Results

When compared to corresponding values during spontaneous circulation at 38°C: (1) After 15 min of CPR at 27°C, cardiac output (CO) was reduced by 74%, mean arterial pressure (MAP) by 63%, DO₂ by 47%, but organ blood flow was unaltered. Continuous CPR for 3 h maintained these variables largely unaltered except for significant reduction in blood flow to the heart and brain after 3 h, to the kidneys after 1 h, to the liver after 2 h, and to the stomach and small intestine after 3 h. (2) After normothermic CPR for 15 min, CO was reduced by 71%, MAP by 54%, and DO₂ by 63%. After 45 min, hemodynamic function had deteriorated significantly, organ blood flow was undetectable, serum lactate increased by a factor of 12, and mixed venous O₂ content was reduced to 18%.

Conclusion

The level to which CPR can replace CO and MAP during spontaneous circulation at normothermia was not affected by reduction in core temperature in our setting. Compared to spontaneous circulation at normothermia, 3 h of continuous resuscitation at 27°C provided limited but sufficient O₂ delivery to maintain aerobic metabolism. This fundamental new knowledge is important in that it encourages early and continuous CPR in accidental hypothermia victims during evacuation and transport.

Relating Clinical and Electrophysiological Parameters in Death Determination in a Laboratory Model of Progressive Hypoxemia

BACKGROUND

Death after withdrawal of mechanical ventilation frequently follows the sequence of progressive hypoxemia and hypotension leading to cardiac arrest. Accurate timing of the determination of death is fundamental to trust in controlled donation after circulatory death (cDCD) programs and is generally based on cessation of circulation (pulselessness), brain function (apnea), and the passage of time. If death is understood to be the unresuscitatable loss of brain function, the clinical determination that death following apnea and pulselessness has occurred is largely inferential. We sought to elucidate the relationship between the available clinical variables and the loss of brain function and its inability to be resuscitated.

METHODS

We developed a rat model of progressive hypoxia resulting in apnea and circulatory failure. We monitored clinical physiological variables including heart rate, respiration, and arterial pulse pressure. In addition, we simultaneously monitored spontaneous and evoked brain activity within the hippocampus through microelectrode field potential recordings. We also examined neurological function following restoration of pulmonary and circulatory function.

RESULTS

Our data provide evidence that in a model of progressive hypoxemia, loss of spontaneous and evoked brain activity preceded the loss of circulation. Importantly, the data suggest that the loss of brain function, in the presence of restored cardiopulmonary indices, occurred at a time point after apnea but before the loss of detectable arterial pulse pressure.

CONCLUSIONS

These are important data that act as a conceptual reference point when clinicians undertake the inferential activity of identifying the time prior to which a patient has died following progressive hypoxemia and while observing apnea and pulselessness.

When should resuscitation at birth cease?

It is rare for newborn infants to require prolonged resuscitation at birth. While there are detailed national and international guidelines on when and how to provide resuscitation to newborns, there is little existing guidance on when newborn resuscitation should be stopped. In this paper we review current guidance surrounding adult, paediatric and neonatal resuscitation as well as recent evidence of outcome for newborn infants requiring prolonged resuscitation. We discuss the ethical principles that can potentially guide decisions surrounding resuscitation and post-resuscitation care. We also propose a structured approach to stopping resuscitation.