Impact of the number of on-scene emergency life-saving technicians and outcomes from out-of-hospital cardiac arrest in Osaka City

Kentaro Kajino, Tetsuhisa Kitamura, Taku Iwami, Mohamud Ramzan Daya, Marcus Eng Hock Ong, Chika Nishiyama, Tomohiko Sakai, Kayo Tanigawa-Sugihara, Sumito Hayashida, Tatsuya Nishiuchi, Yasuyuki Hayashi, Atsushi Hiraide, Takeshi Shimazu

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Backgrounds: In Japan, ambulance staffing for cardiac arrest responses consists of a 3-person unit with at least one emergency life-saving technician (ELST). Recently, the number of ELSTs on ambulances has increased since it is believed that this improves the quality of on-scene care leading to better outcomes from out-of-hospital cardiac arrest (OHCA). The objective of this study was to evaluate the association between the number of on-scene ELSTs and OHCA outcome. Methods: This was a prospective cohort study of all bystander-witnessed OHCA patients aged ≥18. years in Osaka City from January 2005 to December 2007 using on an Utstein-style database. The primary outcome measure was one-month survival with favorable neurological outcome defined as a cerebral performance category ≤2. Multivariable logistic regression model were used to assess the contribution of the number of on-scene ELSTs to the outcome after adjusting for confounders. Results: Of the 2408 bystander-witnessed OHCA patients, one ELST group was present in 639 (26.5%), two ELST were present in 1357 (56.4%), and three ELST group in 412 (17.1%). The three ELST group had a significantly higher rate of one-month survival with favorable neurological outcome compared with the one ELST group (8.0% versus 4.5%, adjusted OR 2.26, 95% CI 1.27-4.04), while the two ELST group did not (5.4% versus 4.5%, adjusted OR 1.34, 95% CI 0.82-2.19). Conclusions: Compared with the one on-scene ELST group, the three on-scene ELST group was associated with the improved one-month survival with favorable neurological outcome from OHCA in Osaka City.

Original languageEnglish (US)
Pages (from-to)59-64
Number of pages6
JournalResuscitation
Volume85
Issue number1
DOIs
StatePublished - Jan 2014

Fingerprint

Out-of-Hospital Cardiac Arrest
Emergencies
Ambulances
Survival
Logistic Models
Heart Arrest
Japan
Cohort Studies
Outcome Assessment (Health Care)
Databases
Prospective Studies

Keywords

  • Advanced life support
  • Cardiopulmonary resuscitation
  • Emergency life-saving technicians
  • Emergency medical services
  • Out-of-hospital cardiac arrest

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Emergency
  • Emergency Medicine
  • Medicine(all)

Cite this

Impact of the number of on-scene emergency life-saving technicians and outcomes from out-of-hospital cardiac arrest in Osaka City. / Kajino, Kentaro; Kitamura, Tetsuhisa; Iwami, Taku; Daya, Mohamud Ramzan; Ong, Marcus Eng Hock; Nishiyama, Chika; Sakai, Tomohiko; Tanigawa-Sugihara, Kayo; Hayashida, Sumito; Nishiuchi, Tatsuya; Hayashi, Yasuyuki; Hiraide, Atsushi; Shimazu, Takeshi.

In: Resuscitation, Vol. 85, No. 1, 01.2014, p. 59-64.

Research output: Contribution to journalArticle

Kajino, K, Kitamura, T, Iwami, T, Daya, MR, Ong, MEH, Nishiyama, C, Sakai, T, Tanigawa-Sugihara, K, Hayashida, S, Nishiuchi, T, Hayashi, Y, Hiraide, A & Shimazu, T 2014, 'Impact of the number of on-scene emergency life-saving technicians and outcomes from out-of-hospital cardiac arrest in Osaka City', Resuscitation, vol. 85, no. 1, pp. 59-64. https://doi.org/10.1016/j.resuscitation.2013.09.002
Kajino, Kentaro ; Kitamura, Tetsuhisa ; Iwami, Taku ; Daya, Mohamud Ramzan ; Ong, Marcus Eng Hock ; Nishiyama, Chika ; Sakai, Tomohiko ; Tanigawa-Sugihara, Kayo ; Hayashida, Sumito ; Nishiuchi, Tatsuya ; Hayashi, Yasuyuki ; Hiraide, Atsushi ; Shimazu, Takeshi. / Impact of the number of on-scene emergency life-saving technicians and outcomes from out-of-hospital cardiac arrest in Osaka City. In: Resuscitation. 2014 ; Vol. 85, No. 1. pp. 59-64.
@article{d8f0a0dc12a24b139fae2f7b014bd45e,
title = "Impact of the number of on-scene emergency life-saving technicians and outcomes from out-of-hospital cardiac arrest in Osaka City",
abstract = "Backgrounds: In Japan, ambulance staffing for cardiac arrest responses consists of a 3-person unit with at least one emergency life-saving technician (ELST). Recently, the number of ELSTs on ambulances has increased since it is believed that this improves the quality of on-scene care leading to better outcomes from out-of-hospital cardiac arrest (OHCA). The objective of this study was to evaluate the association between the number of on-scene ELSTs and OHCA outcome. Methods: This was a prospective cohort study of all bystander-witnessed OHCA patients aged ≥18. years in Osaka City from January 2005 to December 2007 using on an Utstein-style database. The primary outcome measure was one-month survival with favorable neurological outcome defined as a cerebral performance category ≤2. Multivariable logistic regression model were used to assess the contribution of the number of on-scene ELSTs to the outcome after adjusting for confounders. Results: Of the 2408 bystander-witnessed OHCA patients, one ELST group was present in 639 (26.5{\%}), two ELST were present in 1357 (56.4{\%}), and three ELST group in 412 (17.1{\%}). The three ELST group had a significantly higher rate of one-month survival with favorable neurological outcome compared with the one ELST group (8.0{\%} versus 4.5{\%}, adjusted OR 2.26, 95{\%} CI 1.27-4.04), while the two ELST group did not (5.4{\%} versus 4.5{\%}, adjusted OR 1.34, 95{\%} CI 0.82-2.19). Conclusions: Compared with the one on-scene ELST group, the three on-scene ELST group was associated with the improved one-month survival with favorable neurological outcome from OHCA in Osaka City.",
keywords = "Advanced life support, Cardiopulmonary resuscitation, Emergency life-saving technicians, Emergency medical services, Out-of-hospital cardiac arrest",
author = "Kentaro Kajino and Tetsuhisa Kitamura and Taku Iwami and Daya, {Mohamud Ramzan} and Ong, {Marcus Eng Hock} and Chika Nishiyama and Tomohiko Sakai and Kayo Tanigawa-Sugihara and Sumito Hayashida and Tatsuya Nishiuchi and Yasuyuki Hayashi and Atsushi Hiraide and Takeshi Shimazu",
year = "2014",
month = "1",
doi = "10.1016/j.resuscitation.2013.09.002",
language = "English (US)",
volume = "85",
pages = "59--64",
journal = "Resuscitation",
issn = "0300-9572",
publisher = "Elsevier Ireland Ltd",
number = "1",

}

TY - JOUR

T1 - Impact of the number of on-scene emergency life-saving technicians and outcomes from out-of-hospital cardiac arrest in Osaka City

AU - Kajino, Kentaro

AU - Kitamura, Tetsuhisa

AU - Iwami, Taku

AU - Daya, Mohamud Ramzan

AU - Ong, Marcus Eng Hock

AU - Nishiyama, Chika

AU - Sakai, Tomohiko

AU - Tanigawa-Sugihara, Kayo

AU - Hayashida, Sumito

AU - Nishiuchi, Tatsuya

AU - Hayashi, Yasuyuki

AU - Hiraide, Atsushi

AU - Shimazu, Takeshi

PY - 2014/1

Y1 - 2014/1

N2 - Backgrounds: In Japan, ambulance staffing for cardiac arrest responses consists of a 3-person unit with at least one emergency life-saving technician (ELST). Recently, the number of ELSTs on ambulances has increased since it is believed that this improves the quality of on-scene care leading to better outcomes from out-of-hospital cardiac arrest (OHCA). The objective of this study was to evaluate the association between the number of on-scene ELSTs and OHCA outcome. Methods: This was a prospective cohort study of all bystander-witnessed OHCA patients aged ≥18. years in Osaka City from January 2005 to December 2007 using on an Utstein-style database. The primary outcome measure was one-month survival with favorable neurological outcome defined as a cerebral performance category ≤2. Multivariable logistic regression model were used to assess the contribution of the number of on-scene ELSTs to the outcome after adjusting for confounders. Results: Of the 2408 bystander-witnessed OHCA patients, one ELST group was present in 639 (26.5%), two ELST were present in 1357 (56.4%), and three ELST group in 412 (17.1%). The three ELST group had a significantly higher rate of one-month survival with favorable neurological outcome compared with the one ELST group (8.0% versus 4.5%, adjusted OR 2.26, 95% CI 1.27-4.04), while the two ELST group did not (5.4% versus 4.5%, adjusted OR 1.34, 95% CI 0.82-2.19). Conclusions: Compared with the one on-scene ELST group, the three on-scene ELST group was associated with the improved one-month survival with favorable neurological outcome from OHCA in Osaka City.

AB - Backgrounds: In Japan, ambulance staffing for cardiac arrest responses consists of a 3-person unit with at least one emergency life-saving technician (ELST). Recently, the number of ELSTs on ambulances has increased since it is believed that this improves the quality of on-scene care leading to better outcomes from out-of-hospital cardiac arrest (OHCA). The objective of this study was to evaluate the association between the number of on-scene ELSTs and OHCA outcome. Methods: This was a prospective cohort study of all bystander-witnessed OHCA patients aged ≥18. years in Osaka City from January 2005 to December 2007 using on an Utstein-style database. The primary outcome measure was one-month survival with favorable neurological outcome defined as a cerebral performance category ≤2. Multivariable logistic regression model were used to assess the contribution of the number of on-scene ELSTs to the outcome after adjusting for confounders. Results: Of the 2408 bystander-witnessed OHCA patients, one ELST group was present in 639 (26.5%), two ELST were present in 1357 (56.4%), and three ELST group in 412 (17.1%). The three ELST group had a significantly higher rate of one-month survival with favorable neurological outcome compared with the one ELST group (8.0% versus 4.5%, adjusted OR 2.26, 95% CI 1.27-4.04), while the two ELST group did not (5.4% versus 4.5%, adjusted OR 1.34, 95% CI 0.82-2.19). Conclusions: Compared with the one on-scene ELST group, the three on-scene ELST group was associated with the improved one-month survival with favorable neurological outcome from OHCA in Osaka City.

KW - Advanced life support

KW - Cardiopulmonary resuscitation

KW - Emergency life-saving technicians

KW - Emergency medical services

KW - Out-of-hospital cardiac arrest

UR - http://www.scopus.com/inward/record.url?scp=84891155228&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84891155228&partnerID=8YFLogxK

U2 - 10.1016/j.resuscitation.2013.09.002

DO - 10.1016/j.resuscitation.2013.09.002

M3 - Article

C2 - 24036196

AN - SCOPUS:84891155228

VL - 85

SP - 59

EP - 64

JO - Resuscitation

JF - Resuscitation

SN - 0300-9572

IS - 1

ER -