Association of chest compression and recoil velocities with depth and rate in manual cardiopulmonary resuscitation

Digna María González-Otero, James Knox Russell, Jesus María Ruiz, Sofía Ruiz de Gauna, José Julio Gutiérrez, Luis Alberto Leturiondo, Mohamud Ramzan Daya

Research output: Contribution to journalArticle

Abstract

Aim: Maximum velocity during chest recoil has been proposed as a metric for chest compression quality during cardiopulmonary resuscitation (CPR). This study investigated the relationship of the maximum velocities during compression and recoil phases with compression depth and rate in manual CPR. Methods: We measured compression instances in out-of-hospital cardiac arrest recordings using custom Matlab programs. Each compression cycle was characterized by depth and rate, maximum compression and recoil velocities (CV and RV), and compression and recoil durations (total and effective). Mean compression and recoil velocities were computed as depth divided by compression and recoil durations, respectively. We correlated CV and RV with their corresponding mean velocities (total and effective), characterized by Pearson's correlation coefficient. Results: CV/RV were strongly correlated with their corresponding mean velocities, with a median r of 0.83 (0.77–0.88)/0.82 (0.76–0.87) in per patient analysis, 0.86/0.88 for all the population. Correlation with mean effective velocities had a median r of 0.91 (0.87–0.94)/0.92 (0.89–0.94) in per-patient, 0.92/0.94 globally (p < 0.001). Total and effective compression and recoil durations were inversely proportional to compression rate. We observed similar RV values among compressions regardless of whether they were compliant with recommended depth and rate. Conversely, we observed different RV values among compressions having the same depth and rate, but presenting very distinct compression waveforms. Conclusion: CV and RV were highly correlated with compression depth and compression and recoil times, respectively. Better understanding of the relationship between novel and current quality metrics could help with the interpretation of CPR quality studies.

Original languageEnglish (US)
Pages (from-to)119-126
Number of pages8
JournalResuscitation
Volume142
DOIs
StatePublished - Sep 1 2019

Fingerprint

Cardiopulmonary Resuscitation
Thorax
Out-of-Hospital Cardiac Arrest
Population

Keywords

  • Cardiopulmonary resuscitation (CPR)
  • Chest compression
  • Compression depth
  • Compression rate
  • High-quality CPR
  • Recoil velocity
  • Release velocity

ASJC Scopus subject areas

  • Emergency Medicine
  • Emergency
  • Cardiology and Cardiovascular Medicine

Cite this

González-Otero, D. M., Russell, J. K., Ruiz, J. M., Ruiz de Gauna, S., Gutiérrez, J. J., Leturiondo, L. A., & Daya, M. R. (2019). Association of chest compression and recoil velocities with depth and rate in manual cardiopulmonary resuscitation. Resuscitation, 142, 119-126. https://doi.org/10.1016/j.resuscitation.2019.07.023

Association of chest compression and recoil velocities with depth and rate in manual cardiopulmonary resuscitation. / González-Otero, Digna María; Russell, James Knox; Ruiz, Jesus María; Ruiz de Gauna, Sofía; Gutiérrez, José Julio; Leturiondo, Luis Alberto; Daya, Mohamud Ramzan.

In: Resuscitation, Vol. 142, 01.09.2019, p. 119-126.

Research output: Contribution to journalArticle

González-Otero, DM, Russell, JK, Ruiz, JM, Ruiz de Gauna, S, Gutiérrez, JJ, Leturiondo, LA & Daya, MR 2019, 'Association of chest compression and recoil velocities with depth and rate in manual cardiopulmonary resuscitation', Resuscitation, vol. 142, pp. 119-126. https://doi.org/10.1016/j.resuscitation.2019.07.023
González-Otero DM, Russell JK, Ruiz JM, Ruiz de Gauna S, Gutiérrez JJ, Leturiondo LA et al. Association of chest compression and recoil velocities with depth and rate in manual cardiopulmonary resuscitation. Resuscitation. 2019 Sep 1;142:119-126. https://doi.org/10.1016/j.resuscitation.2019.07.023
González-Otero, Digna María ; Russell, James Knox ; Ruiz, Jesus María ; Ruiz de Gauna, Sofía ; Gutiérrez, José Julio ; Leturiondo, Luis Alberto ; Daya, Mohamud Ramzan. / Association of chest compression and recoil velocities with depth and rate in manual cardiopulmonary resuscitation. In: Resuscitation. 2019 ; Vol. 142. pp. 119-126.
@article{fa8e92c9f7124d8587aed269ecea7724,
title = "Association of chest compression and recoil velocities with depth and rate in manual cardiopulmonary resuscitation",
abstract = "Aim: Maximum velocity during chest recoil has been proposed as a metric for chest compression quality during cardiopulmonary resuscitation (CPR). This study investigated the relationship of the maximum velocities during compression and recoil phases with compression depth and rate in manual CPR. Methods: We measured compression instances in out-of-hospital cardiac arrest recordings using custom Matlab programs. Each compression cycle was characterized by depth and rate, maximum compression and recoil velocities (CV and RV), and compression and recoil durations (total and effective). Mean compression and recoil velocities were computed as depth divided by compression and recoil durations, respectively. We correlated CV and RV with their corresponding mean velocities (total and effective), characterized by Pearson's correlation coefficient. Results: CV/RV were strongly correlated with their corresponding mean velocities, with a median r of 0.83 (0.77–0.88)/0.82 (0.76–0.87) in per patient analysis, 0.86/0.88 for all the population. Correlation with mean effective velocities had a median r of 0.91 (0.87–0.94)/0.92 (0.89–0.94) in per-patient, 0.92/0.94 globally (p < 0.001). Total and effective compression and recoil durations were inversely proportional to compression rate. We observed similar RV values among compressions regardless of whether they were compliant with recommended depth and rate. Conversely, we observed different RV values among compressions having the same depth and rate, but presenting very distinct compression waveforms. Conclusion: CV and RV were highly correlated with compression depth and compression and recoil times, respectively. Better understanding of the relationship between novel and current quality metrics could help with the interpretation of CPR quality studies.",
keywords = "Cardiopulmonary resuscitation (CPR), Chest compression, Compression depth, Compression rate, High-quality CPR, Recoil velocity, Release velocity",
author = "Gonz{\'a}lez-Otero, {Digna Mar{\'i}a} and Russell, {James Knox} and Ruiz, {Jesus Mar{\'i}a} and {Ruiz de Gauna}, Sof{\'i}a and Guti{\'e}rrez, {Jos{\'e} Julio} and Leturiondo, {Luis Alberto} and Daya, {Mohamud Ramzan}",
year = "2019",
month = "9",
day = "1",
doi = "10.1016/j.resuscitation.2019.07.023",
language = "English (US)",
volume = "142",
pages = "119--126",
journal = "Resuscitation",
issn = "0300-9572",
publisher = "Elsevier Ireland Ltd",

}

TY - JOUR

T1 - Association of chest compression and recoil velocities with depth and rate in manual cardiopulmonary resuscitation

AU - González-Otero, Digna María

AU - Russell, James Knox

AU - Ruiz, Jesus María

AU - Ruiz de Gauna, Sofía

AU - Gutiérrez, José Julio

AU - Leturiondo, Luis Alberto

AU - Daya, Mohamud Ramzan

PY - 2019/9/1

Y1 - 2019/9/1

N2 - Aim: Maximum velocity during chest recoil has been proposed as a metric for chest compression quality during cardiopulmonary resuscitation (CPR). This study investigated the relationship of the maximum velocities during compression and recoil phases with compression depth and rate in manual CPR. Methods: We measured compression instances in out-of-hospital cardiac arrest recordings using custom Matlab programs. Each compression cycle was characterized by depth and rate, maximum compression and recoil velocities (CV and RV), and compression and recoil durations (total and effective). Mean compression and recoil velocities were computed as depth divided by compression and recoil durations, respectively. We correlated CV and RV with their corresponding mean velocities (total and effective), characterized by Pearson's correlation coefficient. Results: CV/RV were strongly correlated with their corresponding mean velocities, with a median r of 0.83 (0.77–0.88)/0.82 (0.76–0.87) in per patient analysis, 0.86/0.88 for all the population. Correlation with mean effective velocities had a median r of 0.91 (0.87–0.94)/0.92 (0.89–0.94) in per-patient, 0.92/0.94 globally (p < 0.001). Total and effective compression and recoil durations were inversely proportional to compression rate. We observed similar RV values among compressions regardless of whether they were compliant with recommended depth and rate. Conversely, we observed different RV values among compressions having the same depth and rate, but presenting very distinct compression waveforms. Conclusion: CV and RV were highly correlated with compression depth and compression and recoil times, respectively. Better understanding of the relationship between novel and current quality metrics could help with the interpretation of CPR quality studies.

AB - Aim: Maximum velocity during chest recoil has been proposed as a metric for chest compression quality during cardiopulmonary resuscitation (CPR). This study investigated the relationship of the maximum velocities during compression and recoil phases with compression depth and rate in manual CPR. Methods: We measured compression instances in out-of-hospital cardiac arrest recordings using custom Matlab programs. Each compression cycle was characterized by depth and rate, maximum compression and recoil velocities (CV and RV), and compression and recoil durations (total and effective). Mean compression and recoil velocities were computed as depth divided by compression and recoil durations, respectively. We correlated CV and RV with their corresponding mean velocities (total and effective), characterized by Pearson's correlation coefficient. Results: CV/RV were strongly correlated with their corresponding mean velocities, with a median r of 0.83 (0.77–0.88)/0.82 (0.76–0.87) in per patient analysis, 0.86/0.88 for all the population. Correlation with mean effective velocities had a median r of 0.91 (0.87–0.94)/0.92 (0.89–0.94) in per-patient, 0.92/0.94 globally (p < 0.001). Total and effective compression and recoil durations were inversely proportional to compression rate. We observed similar RV values among compressions regardless of whether they were compliant with recommended depth and rate. Conversely, we observed different RV values among compressions having the same depth and rate, but presenting very distinct compression waveforms. Conclusion: CV and RV were highly correlated with compression depth and compression and recoil times, respectively. Better understanding of the relationship between novel and current quality metrics could help with the interpretation of CPR quality studies.

KW - Cardiopulmonary resuscitation (CPR)

KW - Chest compression

KW - Compression depth

KW - Compression rate

KW - High-quality CPR

KW - Recoil velocity

KW - Release velocity

UR - http://www.scopus.com/inward/record.url?scp=85070193379&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85070193379&partnerID=8YFLogxK

U2 - 10.1016/j.resuscitation.2019.07.023

DO - 10.1016/j.resuscitation.2019.07.023

M3 - Article

VL - 142

SP - 119

EP - 126

JO - Resuscitation

JF - Resuscitation

SN - 0300-9572

ER -