Amplitude-spectral area and chest compression release velocity independently predict hospital discharge and good neurological outcome in ventricular fibrillation out-of-hospital cardiac arrest

Indik, Julia H.; Conover, Zacherie; McGovern, Meghan; Silver, Annemarie; Spaite, Daniel W.; Bobrow, Bentley J.; Kern, Karl B.

doi:10.1016/j.resuscitation.2015.05.002

Cited by 26 publications

(15 citation statements)

References 40 publications

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“…The challenges in the direct measurement of leaning or recoil result in the use of indirect measurements, such as CCRV calculated from the accelerometry signal, to assess the performance of chest recoil [13][14][15][16] . An improved survival and favourable neurologic outcomes from hospital discharge after OHCA had been documented 14,15 . Survival after adult OHCA www.nature.com/scientificreports www.nature.com/scientificreports/ varied significantly with CCRV, as did favourable neurologic outcomes.…”

Section: Discussionmentioning

confidence: 99%

Effect of Audiovisual Cardiopulmonary Resuscitation Feedback Device on Improving Chest Compression Quality

Lin

Hsia

Lee

et al. 2020

Sci Rep

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The one month survival rate after out-of-hospital cardiac arrest (OHCA) in the paediatric population remains low. Improving survival in paediatric OHCA by enhancing the quality of cardiopulmonary resuscitation (CPR) is important. In this study, we aimed to analyse the factors associated with CPR quality by using a real-time feedback device. Participants were prospectively divided into 4 groups: paediatric research fellows, paediatric residents, medical students (clerks), and paediatric critical care nurses. Then, the participants were asked to perform 5 cycles of CPR on a paediatric simulation manikin without prompts from feedback devices, and to repeat another 5 cycles of CPR after education with the 2015 paediatric advanced life support guidelines. A total of 75 participants were evaluated. In the overall analysis, an improvement in the percentage of participants meeting the target compression rate was observed (from 49.82% to 71.23%, P < 0.001). The percentage of participants achieving the target compression depth improved from 73.77% to 85.63% (P = 0.005). Among the 4 groups, the residents showed the most significant improvement in both compression rate (from 48.41% to 86.57%, P < 0.001) and compression depth (from 63.50% to 95.57%, P < 0.001). Inappropriate rate was a more important factor resulting in inadequate CPR performance than inappropriate depth. An excessive compression rate was also a common problem. In conclusions, the real-time CPR feedback device may help clinical physicians and nurses in improving the quality of chest compression. Excessive CPR compression rate may be a major cause of inadequate CPR performance.

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Section: Discussionmentioning

confidence: 99%

Effect of Audiovisual Cardiopulmonary Resuscitation Feedback Device on Improving Chest Compression Quality

Lin

Hsia

Lee

et al. 2020

Sci Rep

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“…High initial AMSA has been shown to be a predictor of short-term and long-term survival and good neurologic outcome in multiple human OHCA studies. 8–10,15,21 Using AMSA as a predictor of outcome after OHCA is based on the assumption that AMSA is higher in patients with shorter delay and presence of bystander CPR. However, using a low AMSA as a simple surrogate measure for longer arrest duration has been challenged by several authors.…”

Section: Discussionmentioning

confidence: 99%

“…In general, higher VF waveform measures (e.g., higher AMSA) have been associated with higher survival rates in multiple observational studies 7–10 . This is generally ascribed to their strong correlation with favorable resuscitation characteristics (e.g., public location, bystander witnessed collapse, bystander CPR, short call-to-ECG delay).…”

Section: Introductionmentioning

confidence: 99%

Predictive value of amplitude spectrum area of ventricular fibrillation waveform in patients with acute or previous myocardial infarction in out-of-hospital cardiac arrest

et al. 2017

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“…The primary outcome measure was adequacy of compressions, a composite measure of adequate rate (100 to 120 CPM for more than 80% of the time), adequate depth (more than 80% of compressions achieved a depth of 5 cm) and adequate recoil (MRV >350 mm/second) [17][18][19] . Secondary outcomes were adequacy of each component, and participant-perceived measures of effectiveness, fatigue and pain via a ten-point visual analogue questionnaire.…”

Section: Outcome Measuresmentioning

confidence: 99%

Morbid Obesity Impairs Adequacy of Thoracic Compressions in a Simulation-Based Model

Secombe

Sutherland

Johnson

2018

Anaesth Intensive Care

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Adequate cardiopulmonary resuscitation is an important predictor of survival, however, obesity provides a significant physical barrier to thoracic compressions. This study explores the effect of morbid obesity on compression adequacy. We performed a prospective randomised controlled crossover study, assessing the adequacy of thoracic compressions on a manikin modified to emulate a morbidly obese patient. Participants recruited from critical care departments were randomised to perform continuous compressions for two minutes on each manikin. Accelerometers were used to measure thoracic wall movement. The primary endpoint was a composite measure of compression adequacy (rate, depth and recoil). Secondary endpoints were the individual components of the composite outcome and measures of perceived effectiveness, fatigue, and pain. One hundred and one participants were recruited. There was a significant difference between the obese and control groups in the composite endpoint (4% versus 30%, P <0.001), as well as the individual components of adequacy (P <0.01 for all). Quartile data showed significant deterioration in adequacy of depth and recoil in both groups, and this occurred significantly earlier in the obese group (P ≤0.001). Participants' perception of effectiveness was significantly lower (P ≤0.001) in the obese group, and levels of fatigue (P ≤0.001) and pain (P ≤0.001) significantly higher. Morbid obesity impairs the adequacy of thoracic compressions for trained rescuers in a simulation-based model. Participants were not fully aware of how ineffective compressions were. There is evidence of earlier fatigue further reducing effectiveness. These findings have significant implications for the training of rescuers in a clinically relevant population and the planning of future research.

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Amplitude-spectral area and chest compression release velocity independently predict hospital discharge and good neurological outcome in ventricular fibrillation out-of-hospital cardiac arrest

Cited by 26 publications

References 40 publications

Effect of Audiovisual Cardiopulmonary Resuscitation Feedback Device on Improving Chest Compression Quality

Effect of Audiovisual Cardiopulmonary Resuscitation Feedback Device on Improving Chest Compression Quality

Predictive value of amplitude spectrum area of ventricular fibrillation waveform in patients with acute or previous myocardial infarction in out-of-hospital cardiac arrest

Morbid Obesity Impairs Adequacy of Thoracic Compressions in a Simulation-Based Model

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