Only 76% of compressions without the ResQR were graded as within good pacing range as compared to 97% of compressions with the ResQR. Objective results from the Laerdal QCPR App showed that the average number of compressions performed over 2 minutes without the ResQR was 218 (Range 184-255), compared to the number of compressions with the ResQR, which was 212 (Range 205-230). Average shoulder position (SP) with and without ResQR over 2 minutes. Without the ResQR the grading started at a four and immediately degraded. With the ResQR, the average started at 4.5 and only degraded in the last thirty seconds. Table 3 shows the average results of shoulder position during compressions. Without the ResQR initial placement was graded as a 4, and immediately degraded after the first thirty seconds. With the ResQR, initial placement scored a 4.5 and stayed consistent until the last 30 seconds. Average results of hand position (HPO) with and without ResQR over 2 minutes. Table 2 shows the average results for the hand position during compressions. Without the ResQR initial hand, placement was 4.3 and continued to degrade over the course of the two minutes. Hand placement with the ResQR averaged a grading of 5, which stayed consistent through the two minutes. Average results of hand placement (HP) with and without ResQR over 2 minutes. Table 1 shows the average results for scores by the subjective evaluator of the position of hand placement on the chest. There were seven males and three females. Ten high school students (aged 15-17) were recruited for the study. Rate of compressions was measured as a total number of compressions given over two minutes, as well as the percentage of compressions given at the proper pace. Compression depth was measured as the total percentage of compressions that were performed at sufficient depth. They were also evaluated objectively by the Laerdal Q-CPR app for compression depth and pace. The subjective grade was scored from one to five. They were evaluated every 30 seconds of the two-minute cycle. The recruits were graded subjectively by a single senior CPR Instructor for the following:, hand placement on the chest, hand position and shoulder position. After a short rest, they were given the ResQR device and asked to perform CPR again for another two minutes. They were then asked to perform CPR for two minutes. They were then given a short explanation of how to use the ResQR. Recruits were shown a quick demonstration of CPR, with proper pace, hand placement, hand and shoulder positioning highlighted. Although all high school students are usually given a CPR course in Israel as part of their 10th-grade curriculum, they were not given a class because of the pandemic. Israeli High School Students were recruited to take part in this study. This study set out to evaluate the efficacy of the ResQR device in improving performance of CPR chest compressions in laypersons with no CPR training. It also includes a privacy sheet to cover a woman’s chest for performance of CPR in a public area and a personal protection environment sheet that allows the provider to perform CPR in a non-contact environment. It also has an ergonomic contour that provides biofeedback to ensure improved hand and shoulder positioning. It has a placement guide for proper placement on the chest with a no slip surface to ensure that it stays in the proper position. ![]() 6 Randomized trials support the performance of chest compression-only CPR, 5 including a recent report found that the ability to perform compression-only CPR markedly increased the willingness to perform CPR from 36.4% in 2005–2007 to 63.7% in 2011–2012 when compared with the prospect of performing full CPR with mouth-to-mouth ventilation. Untrained bystanders find chest compression-only CPR easier to perform, especially when given verbal instruction by dispatchers over the phone. When there is only one rescuer, or when the responders are untrained rescuers, or when there are multiple rescuers who are unwilling to do mouth-to-mouth ventilation, chest compression-only (CPR without ventilation) is encouraged. 3 The primary reason for the low survival rate among out-of-hospital cardiac arrest victims (OHCA) is that they do not receive immediate CPR. 1 Cardiopulmonary resuscitation (CPR) provided by a bystander may improve outcome 2 but is generally performed in less than 30% of the cases. ![]() More than 300,000 Americans die from cardiac arrest each year. The easy-to-use ResQR© Quality CPR Aid could be used to enhance layperson chest compressions in performing CPR.
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