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June 3, 2024

What Does the Chest Compression Feedback Device Monitor?

In the event of cardiac arrest, a patient’s chance for survival depends on the quality of cardiopulmonary resuscitation (CPR). CPR is one of the most lifesaving medical treatments, but it can be difficult to perform properly due to lack of training or inaccurate information. Chest compression feedback devices allow rescuers to optimize their performance by monitoring key metrics such as chest compression depth and rate, recoil, and hands-off time.

Many studies have reported that CPR quality can vary significantly between untrained and trained individuals. While this variation can be due to multiple factors, the most common reason is inadequate CPR knowledge and poor technique. Studies have shown that the use of feedback devices improves CPR quality and can lead to higher survival rates.

Currently available chest compression feedback devices are either mechanical or electronic. The former, such as the CPREzy(tm) device shown in Figure 2a, uses a spring mechanism that emits a sound to confirm the correct position of the chest during compression. It also ensures that the chest rebounds fully between compressions, which is important for proper circulation. The CPREzy can also provide metronome-like audio prompts to maintain the recommended chest compression rate of 100 to 120 compressions per minute.

The electronic chest compression feedback device is much more advanced than the mechanical model. It is portable, lightweight, and connects to a mobile app for real-time monitoring and evaluation. It has a customizable display that shows the rate, frequency, and quality of CPR in real-time. This can be used to evaluate rescuers’ performance during an emergency situation and also for future CPR training and quality improvement projects. The Zoll PocketCPR(tm) is another example of a CPR monitor that provides real-time feedback via LED lights and a mobile app.

Although there are several benefits of using a chest compression feedback device, it is important to remember that they are not foolproof. As such, it is critical to train regularly to ensure that a rescuer can accurately interpret the feedback and respond appropriately. It is also important to document the device’s setup procedures and test its accuracy before using it during an actual rescue.

A study has shown that a chest compression feedback device can help rescuers achieve the 5 pillars of high-quality CPR. This includes a compression fraction of above 80%, a chest compression rate of at least 100 to 120 compressions per minute, and a consistent compression depth and proper recoil. The device has been shown to improve chest compression quality and increase rescuers’ confidence.

Chest compression feedback devices can be purchased for home or professional use and are simple to install and operate. They can be used to monitor both adult and pediatric resuscitations. Some of them can also be used in conjunction with training manikins to provide real-time feedback during resuscitation simulations. Lastly, some devices may require calibration or set up before their first use, so it is important to follow the manufacturer’s instructions carefully.