Resuscitation
-
Randomized Controlled Trial Comparative Study
Effectiveness of the new 'Mobile AED Map' to find and retrieve an AED: A randomised controlled trial.
Although early shock with an automated external defibrillator (AED) is one of the several key elements to save out-of-hospital cardiac arrest (OHCA) victims, it is not always easy to find and retrieve a nearby AED in emergency settings. We developed a cell phone web system, the Mobile AED Map, displaying nearby AEDs located anywhere. The simulation trial in the present study aims to compare the time and travel distance required to access an AED and retrieve it with and without the Mobile AED Map. ⋯ Although the new Mobile AED Map reduced the travel distance to access and retrieve the AED, it failed to shorten the time. Further technological improvements of the system are needed to increase its usefulness in emergency settings (UMIN000002043).
-
Comparative Study
The association between intra-arrest therapeutic hypothermia and return of spontaneous circulation among individuals experiencing out of hospital cardiac arrest.
Therapeutic hypothermia has been shown to improve both mortality and neurologic outcomes following pulseless ventricular tachycardia and fibrillation. Animal data suggest intra-arrest induction of therapeutic hypothermia (IATH) improves frequency of return of spontaneous circulation (ROSC). Our objective was to evaluate the association between IATH and ROSC. ⋯ The infusion of 4°C normal saline during the intra-arrest period may improve rate of ROSC even at low fluid volumes. Further study is required to determine if intra-arrest cooling has a beneficial effect on rates of ROSC, mortality, and neurologic function.
-
This study aimed to determine whether cardiopulmonary resuscitation (CPR) volume is associated with survival to discharge rate for out-of hospital cardiac arrest (OHCA) victims. ⋯ Emergency departments with high volumes of CPR cases showed significantly better outcomes for OHCA patients than those with low volumes in an EMS system with single-tiered basic to intermediate service level.
-
Randomized Controlled Trial Comparative Study
The effect of a cellular-phone video demonstration to improve the quality of dispatcher-assisted chest compression-only cardiopulmonary resuscitation as compared with audio coaching.
Bystander cardiopulmonary resuscitation (CPR) has shown to significantly improve the survival of cardiac-arrest victims. Dispatcher assistance increases the number of bystanders who perform CPR, but the quality of CPR remains unsatisfactory. This study was conducted to assess the effect of video coaching on the performance of CPR by untrained volunteers when compared with traditional audio instruction in simulated cardiac arrests. ⋯ Instructions from the dispatcher, along with a video demonstration of CPR, improved the time to initiate compression, the compression rate and the correct hand positioning. It also reduced the 'hands-off' events during CPR. However, emphasised instructions by video may be needed to increase the depth of compressions.
-
Comparative Study
S-100B is superior to NSE, BDNF and GFAP in predicting outcome of resuscitation from cardiac arrest with hypothermia treatment.
To conduct a pilot study to evaluate the blood levels of brain derived neurotrophic factor (BDNF), glial fibrillary acidic protein (GFAP), neuron specific enolase (NSE) and S-100B as prognostic markers for neurological outcome 6 months after hypothermia treatment following resuscitation from cardiac arrest. ⋯ The blood concentration of S-100B at 24h after ROSC is highly predictive of outcome in patients treated with mild hypothermia after cardiac arrest.