Articles: out-of-hospital-cardiac-arrest.
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The use of machine learning to identify patient 'clusters' using post-return of spontaneous circulation (ROSC) vital signs may facilitate the identification of patient subgroups at high risk of rearrest and mortality. Our objective was to use k-means clustering to identify post-ROSC vital sign clusters and determine whether these clusters were associated with rearrest and mortality. ⋯ Unsupervised k-means clustering yielded 5 post-ROSC vital sign clusters that were associated with rearrest and mortality.
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Due to the difficulty in making the decision to discontinue resuscitation efforts, clinicians often perform prolonged cardiopulmonary resuscitation (CPR) in children who have drowned. This study investigated the relationship between out-of-hospital CPR duration and neurological outcomes in children with drowning-induced cardiac arrest. ⋯ Prehospital EMS-initiated CPR duration for children with drowning-induced cardiac arrest was inversely associated with one-month favorable neurological outcomes. Favorable neurological outcomes after >33 min of out-of-hospital CPR were extremely rare, though accurately predicting the outcome remains challenging.
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Observational Study
Bystander Cardiopulmonary Resuscitation and Outcomes of Mass Cardiac Arrests Caused by A Crowd Crush.
A crowd crush can lead to respiratory arrest and result in multiple mass cardiac arrests (MCAs), which are often classified as Black Tag in disaster triage. Recently, many laypersons have been commonly trained in compression-only cardiopulmonary resuscitation (CPR) without ventilation support in various communities. This study aims to describe the characteristics of bystander CPR administered and the outcomes of MCAs during the Itaewon crowd crush incident. ⋯ Most MCAs were pronounced deceased, likely due to their classification as Black Tag or delayed response times. Only a small percentage (4.8%) of bystander CPR cases included rescue breathing. An optimized resuscitation protocol for MCAs in crowd crush scenarios should be developed.
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Bystander cardiopulmonary resuscitation (CPR) for out-of-hospital cardiac arrest (OHCA) has increased in Singapore, Japan, and South Korea following the implementation of several public health, bystander-focused interventions, such as dispatcher-assisted CPR and community CPR training. It is unclear whether bystander CPR prevalence will continue on this trajectory over time. This study aimed to investigate the temporal trends of bystander CPR prevalence over a ten-year period in these three Asian countries. ⋯ This study investigated the trend of bystander CPR over 10 years in three Asian countries. Although the proportion of bystander CPR has increased, it has now plateaued between 50-60 %. Further research is necessary to identify the contributing factors and advance beyond this "invisible ceiling".
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The likelihood of neurological recovery after out-of-hospital cardiac arrest (OHCA) may be influenced by advanced age. This study aims to evaluate the impact of advanced age on neurological recovery in elderly OHCA survivors treated with targeted temperature management (TTM). This retrospective observational study, using a nationwide population-based OHCA registry, was conducted from January 2016 to December 2020. ⋯ The optimal age cutoffs for good outcomes in elderly OHCA survivors with shockable and non-shockable rhythm were 77 and 72 years, respectively. The neurologic recovery rate in OHCA survivors treated with TTM gradually decreased with increasing age. However, even patients aged ≥ 80 years with shockable rhythm had a good neurologic outcome of 14.9% compared with patients aged 65-69 years with non-shockable rhythm (10.6%).