Evidence map›Paper›PMID 34237819›Full record

ArticleClinical and experimental emergency medicine2021

Impact of the COVID-19 outbreak on adult out-of-hospital cardiac arrest outcomes in Daegu, South Korea: an observational study.

Jae Yun Ahn, Hyun Wook Ryoo, Jae Wan Cho, Jung Ho Kim, Sang-Hun Lee, Tae Chang Jang

Abstract read
In one paragraph

Article in Clinical and experimental emergency medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Jae Yun AhnDepartment of Emergency Medicine, Kyungpook National University School of Medicine, Daegu, Korea.
Hyun Wook RyooDepartment of Emergency Medicine, Kyungpook National University School of Medicine, Daegu, Korea.
Jae Wan ChoDepartment of Emergency Medicine, Kyungpook National University School of Medicine, Daegu, Korea.
Jung Ho KimDepartment of Emergency Medicine, Yeungnam University Hospital, Yeungnam University College of Medicine, Daegu, Korea.
Sang-Hun LeeDepartment of Emergency Medicine, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea.
Tae Chang JangDepartment of Emergency Medicine, Daegu Catholic University School of Medicine, Daegu, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aimed to compare the outcomes of adult out-of-hospital cardiac arrest (OHCA) before and after the coronavirus disease 2019 (COVID-19) outbreak in a large metropolitan city.

methodsThis before-and-after observational study used a prospective citywide OHCA registry. Adult patients with emergency medical service-treated OHCA, with presumed cardiac etiology, pre- and post-COVID-19 outbreak were enrolled. The study period spanned 2 months, starting from February 18, 2020. The control period was 2 months from February 18, 2019. The primary and secondary outcomes were good neurologic outcome and survival to hospital discharge, respectively. The association between the COVID-19 outbreak and OHCA outcomes was assessed using multivariable logistic regression analysis.

resultsThis study analyzed 297 OHCA patients (control period, 145; study period, 152). The bystander cardiopulmonary resuscitation rates were 64.8% and 60.5% during the control and study periods, respectively. Response and on-scene times increased by 2 minutes, supraglottic airway use increased by 35.6%, and mechanical chest compression device use increased by 13% post-COVID-19 outbreak. Good neurologic outcome was significantly lower during the study period in overall OHCAs (adjusted odds ratio, 0.23; 95% confidence interval, 0.05-0.98) and in witnessed OHCAs (adjusted odds ratio, 0.14; 95% confidence interval, 0.02-0.90). No significant difference was found in the survival to hospital discharge of OHCA patients between the two periods.

conclusionDuring the COVID-19 pandemic, the response and on-scene times were longer, and good neurologic outcome was significantly lower than that in the control period.

Indexed as

Cardiopulmonary resuscitationCOVID-19Out-of-hospital cardiac arrestPrognosis

Identifiers

PMID34237819
PMCPMC8273676

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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.