Evidence map›Paper›PMID 32634172›Full record

Trial reportPloS one2020

Optimal paramedic numbers in resuscitation of patients with out-of-hospital cardiac arrest: A randomized controlled study in a simulation setting.

Bing Min Tsai, Jen-Tang Sun, Ming-Ju Hsieh, Yu-You Lin, Tsung-Chi Kao, Lee-Wei Chen, Matthew Huei-Ming Ma, Chiang Wen-Chu

Erratum issuedOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Observational
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 1 country.

Bing Min TsaiDivision of Emergency Medical Service, New Taipei City Fire Department, New Taipei City, Taiwan.
Jen-Tang SunDepartment of Emergency Medicine, Far Eastern Memorial Hospital, New Taipei City, Taiwan.
Ming-Ju HsiehDepartment of Emergency Medicine, National Taiwan University Hospital, Taipei City, Taiwan.
Yu-You LinDivision of Emergency Medical Service, New Taipei City Fire Department, New Taipei City, Taiwan.
Tsung-Chi KaoDivision Chief of Emergency Medical Service, New Taipei City Fire Department, New Taipei City, Taiwan.
Lee-Wei ChenInstitute of Emergency and Critical Care Medicine, National Yang Ming University, Taipei City, Taiwan.
Matthew Huei-Ming MaDepartment of Emergency Medicine, National Taiwan University Hospital, Taipei City, Taiwan.
Chiang Wen-ChuDepartment of Emergency Medicine, National Taiwan University Hospital, Taipei City, Taiwan.ORCID 0000-0001-8620-7982
National Taiwan University Hospital · TWTaipei City Government · TWFar Eastern Memorial Hospital · TWNational Sun Yat-sen University · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe effect of paramedic crew size in the resuscitation of patients with out-of-hospital cardiac arrest (OHCA) remains inconclusive. We hypothesised that teams with a larger crew size have better resuscitation performance including chest compression fraction (CCF), advanced life support (ALS), and teamwork performance than those with a smaller crew size.

methodsWe conducted a randomized controlled study in a simulation setting. A total of 140 paramedics from New Taipei City were obtained by stratified sampling and were randomly allocated to 35 teams with crew sizes of 2, 3, 4, 5, and 6 (i.e. 7 teams in every paramedic crew size). A scenario involving an OHCA patient who experienced ventricular fibrillation and was attached to a cardiopulmonary resuscitation (CPR) machine was simulated. The primary outcome was the overall CCF; the secondary outcomes were the CCF in manual CPR periods, time from the first dose of epinephrine until the accomplishment of intubation, and teamwork performance. Tasks affecting the hands-off time during CPR were also analysed.

resultsIn all 35 teams with crew sizes of 2, 3, 4, 5, and 6, the overall CCFs were 65.1%, 64.4%, 70.7%, 72.8%, and 71.5%, respectively (P = 0.148). Teams with a crew size of 5 (58.4%, 61.8%, 68.9%, 72.4%, and 68.7%, P<0.05) had higher CCF in manual CPR periods and better team dynamics. Time to the first dose of epinephrine was significantly shorter in teams with 4 paramedics, while time to completion of intubation was shortest in teams with 6 paramedics. Troubleshooting of M-CPR machine decreased the hands-off time during resuscitation (39 s), with teams comprising 2 paramedics having the longest hands-off time (63s).

conclusionLarger paramedic crew size (≧4 paramedics) did not significantly increase the overall CCF in OHCA resuscitation but showed higher CCF in manual CPR period before the setup of the CPR machine. A crew size of ≧4 paramedics can also shorten the time of ALS interventions, while teams with 5 paramedics will have the best teamwork performance. Paramedic teams with a smaller crew size should focus more on the quality of manual CPR, teamwork, and training how to troubleshoot a M-CPR machine.

Indexed as

AdultAllied Health PersonnelCardiopulmonary ResuscitationCritical CareEmergency Medical ServicesEmergency Medical TechniciansEmergency MedicineEpinephrineFemaleHumansIntubationMaleOut-of-Hospital Cardiac ArrestVentricular FibrillationEpinephrine

Identifiers

PMID32634172
PMCPMC7340314
OpenAlexW3039709984

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.