Automatic Detection Algorithm for Chest Compressions Signal with Classification Algorithm

2014 ◽  
Vol 926-930 ◽  
pp. 3493-3496
Author(s):  
Di Xiang
Keyword(s):  
Cardiopulmonary Resuscitation ◽  
Detection Algorithm ◽  
Experimental Results ◽  
Chest Compressions ◽  
Multiple Sources ◽  
Baseline Drift ◽  
Transthoracic Impedance ◽  
Potential Indicator ◽  
Automatic Detection Algorithm

Transthoracic impedance (TTI) has been demonstrated to be a potential indicator to monitor the quality of chest compressions (CCs) during cardiopulmonary resuscitation (CPR). However, TTI signals are challenged by noise artifact from multiple sources, such as ventilations and baseline drift. Practically, it is very essential to accurately detect the peak-to-trough of the complicated TTI signals. However, nowadays, there is no method to solve the problem. In this paper, Extrima search with niche technology was used to search the peak-to-trough of TTI signal. We select 2 features to judge the potential peaks and troughs in order to remove the false ones. Besides, we designed a LDA classifier for recognizing the compression and ventilation waves. The experimental results show that this method in this paper can precisely recognize the real peaks and troughs of TTI signals which include some false ones.

Effectiveness of a Dispatcher-Assisted Cardiopulmonary Resuscitation Program Developed by the Thailand National Institute of Emergency Medicine (NIEMS)

2021 ◽  
pp. 1-6
Author(s):  
Chuenruthai Angkoontassaneeyarat ◽  
Chaiyaporn Yuksen ◽  
Chetsadakon Jenpanitpong ◽  
Pemika Rukthai ◽  
Marisa Seanpan ◽  
...  
Keyword(s):  
Health Care ◽  
Emergency Medicine ◽  
Cardiac Arrest ◽  
Cardiopulmonary Resuscitation ◽  
Health Care Providers ◽  
Care Providers ◽  
Chest Compressions ◽  
Threatening Condition ◽  
Life Threatening

Abstract Background: Out-of-hospital cardiac arrest (OHCA) is a life-threatening condition with an overall survival rate that generally does not exceed 10%. Several factors play essential roles in increasing survival among patients experiencing cardiac arrest outside the hospital. Previous studies have reported that implementing a dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) program increases bystander CPR, quality of chest compressions, and patient survival. This study aimed to assess the effectiveness of a DA-CPR program developed by the Thailand National Institute for Emergency Medicine (NIEMS). Methods: This was an experimental study using a manikin model. The participants comprised both health care providers and non-health care providers aged 18 to 60 years. They were randomly assigned to either the DA-CPR group or the uninstructed CPR (U-CPR) group and performed chest compressions on a manikin model for two minutes. The sequentially numbered, opaque, sealed envelope method was used for randomization in blocks of four with a ratio of 1:1. Results: There were 100 participants in this study (49 in the DA-CPR group and 51 in the U-CPR group). Time to initiate chest compressions was statistically significantly longer in the DA-CPR group than in the U-CPR group (85.82 [SD = 32.54] seconds versus 23.94 [SD = 16.70] seconds; P <.001). However, the CPR instruction did not translate into better performance or quality of chest compressions for the overall sample or for health care or non-health care providers. Conclusion: Those in the CPR-trained group applied chest compressions (initiated CPR) more quickly than those who initiated CPR based upon dispatch-based CPR instructions.

scholarly journals An alternative method of chest compression from over-the-head during cardiopulmonary resuscitation

2019 ◽  
Author(s):  
Michał Ćwiertnia ◽  
Marek Kawecki ◽  
Tomasz Ilczak ◽  
Monika Mikulska ◽  
Mieczyslaw Dutka ◽  
...  
Keyword(s):  
Cardiopulmonary Resuscitation ◽  
Chest Compression ◽  
Artificial Respiration ◽  
Hand Position ◽  
Chest Compressions ◽  
Confined Spaces ◽  
Medical Response ◽  
Emergency Interventions ◽  
The Subject

Abstract Background Maintaining highly effective cardiopulmonary resuscitation (CPR) can be particularly difficult when artificial respiration using a bag-valve-mask device, combined with chest compression have to be carried out by one person. The aim of the study is to compare the quality of CPR conducted by one paramedic using chest compression from the patient’s side, with compression carried out from behind the patient’s head. Methods The subject of the study were two methods of CPR – ‘standard’ (STD) and ‘over-the-head’ (OTH). The STD method consisted of 30 chest compressions from the patient’s side, and two attempts at artificial respiration after moving round to behind the patient’s head. In the OTH method, both compression and respiration were conducted from behind the patient’s head. Results Both CPR methods were conducted by 38 paramedics working in medical response teams. The average time of the interruptions between compression cycles (STD 9.184 s, OTH 7.316 s, p<0.001); the depth of compression 50–60 mm (STD 50.65%, OTH 60.22%, p<0.001); the rate of compression 100–120/min. (STD 46.39%, OTH 53.78%, p<0.001); complete chest wall recoil (STD 84.54%, OTH 91.46%, p<0.001); correct hand position (STD 99.32%, OTH method 99.66%, p<0.001). The remaining parameters showed no significant differences in comparison to reference values. Conclusions The demonstrated higher quality of CPR in the simulated research using the OTH method conducted by one person justifies the use of this method in a wider range of emergency interventions than only for CPR conducted in confined spaces.

Transthoracic impedance for the monitoring of quality of manual chest compression during cardiopulmonary resuscitation

Resuscitation ◽  
2012 ◽  
Vol 83 (10) ◽  
pp. 1281-1286 ◽  
Author(s):  
Hehua Zhang ◽  
Zhengfei Yang ◽  
Zitong Huang ◽  
Bihua Chen ◽  
Lei Zhang ◽  
...  
Keyword(s):  
Cardiopulmonary Resuscitation ◽  
Chest Compression ◽  
Transthoracic Impedance ◽  
Manual Chest Compression

scholarly journals Does the use of cardiopulmonary resuscitation feedback devices improve the quality of chest compressions performed by doctors? A prospective, randomized, cross-over simulation study

2019 ◽  
Vol 26 (5) ◽  
pp. 529-535 ◽  
Author(s):  
Jolanta Majer ◽  
Milosz J. Jaguszewski ◽  
Michael Frass ◽  
Marcin Leskiewicz ◽  
Jacek Smereka ◽  
...  
Keyword(s):  
Cardiopulmonary Resuscitation ◽  
Simulation Study ◽  
Chest Compressions

scholarly journals Comparison of standard and over-the-head method of chest compressions during cardiopulmonary resuscitation - a simulation study

2019 ◽  
Author(s):  
Michał Ćwiertnia ◽  
Marek Kawecki ◽  
Tomasz Ilczak ◽  
Monika Mikulska ◽  
Mieczysław Dutka ◽  
...  
Keyword(s):  
Cardiopulmonary Resuscitation ◽  
Chest Compression ◽  
Artificial Ventilation ◽  
Hand Position ◽  
Chest Compressions ◽  
Confined Spaces ◽  
Medical Response ◽  
Significant Difference ◽  
Emergency Interventions

Abstract Background: Maintaining highly effective cardiopulmonary resuscitation (CPR) can be particularly difficult when artificial ventilation using a bag-valve-mask device, combined with chest compression have to be carried out by one person. The aim of the study is to compare the quality of CPR conducted by one paramedic using chest compression from the patient’s side with compression conducted from the ‘over-the-head’ position. Methods: The subject of the study were two methods of CPR – ‘standard’ (STD) and ‘over-the-head’ (OTH). The STD method consisted of cycles of 30 chest compressions from the patient’s side, and two attempts at artificial ventilation after moving round to behind the patient’s head. In the OTH method, both compression and ventilation were conducted from behind the patient’s head. Results: Both CPR methods were conducted by 38 paramedics working in medical response teams. Statistical analysis was conducted on the data collected, giving the following results: the average time of the interruptions between compression cycles (STD 9.184 s, OTH 7.316 s, p < 0.001); the depth of compression 50–60 mm (STD 50.65%, OTH 60.22%, p < 0.001); the rate of compression 100–120/min. (STD 46.39%, OTH 53.78%, p < 0.001); complete chest wall recoil (STD 84.54%, OTH 91.46%, p < 0.001); correct hand position (STD 99.32%, OTH method 99.66%, p < 0.001). A statistically significant difference was demonstrated in the results to the benefit of the OTH method in the above parameters. The remaining parameters showed no significant differences in comparison to reference values. Conclusions: The demonstrated higher quality of CPR in the simulated research using the OTH method conducted by one person justifies the use of this method in a wider range of emergency interventions than only for CPR conducted in confined spaces.

scholarly journals Two‐Thumb Technique Is Superior to Two‐Finger Technique in Cardiopulmonary Resuscitation of Simulated Out‐of‐Hospital Cardiac Arrest in Infants

2021 ◽  
Author(s):  
Giani Cioccari ◽  
Tais Sica da Rocha ◽  
Jefferson Pedro Piva
Keyword(s):  
Cardiopulmonary Resuscitation ◽  
Hospital Setting ◽  
Wilcoxon Test ◽  
Hand Position ◽  
Chest Compressions ◽  
Ventilatory Parameters ◽  
Barrier Device ◽  
Hospital Cardiac Arrest ◽  
Off Time

Background To compare the 2‐finger and 2‐thumb chest compression techniques on infant manikins in an out‐of‐hospital setting regarding efficiency of compressions, ventilation, and rescuer pain and fatigue. Methods and Results In a randomized crossover design, 78 medical students performed 2 minutes of cardiopulmonary resuscitation with mouth‐to‐nose ventilation at a 30:2 rate on a Resusci Baby QCPR infant manikin (Laerdal, Stavanger, Norway), using a barrier device and the 2‐finger and 2‐thumb compression techniques. Frequency and depth of chest compressions, proper hand position, complete chest recoil at each compression, hands‐off time, tidal volume, and number of ventilations were evaluated through manikin‐embedded SkillReporting software. After the interventions, standard Likert questionnaires and analog scales for pain and fatigue were applied. The variables were compared by a paired t ‐test or Wilcoxon test as suitable. Seventy‐eight students participated in the study and performed 156 complete interventions. The 2‐thumb technique resulted in a greater depth of chest compressions (42 versus 39.7 mm; P <0.01), and a higher percentage of chest compressions with adequate depth (89.5% versus 77%; P <0.01). There were no differences in ventilatory parameters or hands‐off time between techniques. Pain and fatigue scores were higher for the 2‐finger technique (5.2 versus 1.8 and 3.8 versus 2.6, respectively; P <0.01). Conclusions In a simulation of out‐of‐hospital, single‐rescuer infant cardiopulmonary resuscitation, the 2‐thumb technique achieves better quality of chest compressions without interfering with ventilation and causes less rescuer pain and fatigue.

The Quality of Chest Compressions During Cardiopulmonary Resuscitation Overrides Importance of Timing of Defibrillation

CHEST Journal ◽  
2007 ◽  
Vol 132 (1) ◽  
pp. 70-75 ◽  
Author(s):  
Giuseppe Ristagno ◽  
Wanchun Tang ◽  
Yun-Te Chang ◽  
Dawn B. Jorgenson ◽  
James K. Russell ◽  
...  
Keyword(s):  
Cardiopulmonary Resuscitation ◽  
Chest Compressions
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