The adherence to modified callers queries (MCQ) of emergency medical dispatch (EMD) during COVID-19 outbreaks for out-of-hospital cardiac arrest

Liao, Edward Che-Wei; Huang, Jie; Chong, Kah-Meng; Chen, J. W.; Yen, Poyu; Lin, Jun-Jie; Hsiao, Hong-Yi; Chen, Y. W.; Yang, Mingcan; M., M. H.; Ko, P. C. I.

doi:10.1016/j.resuscitation.2020.08.100

Cited by 3 publications

(1 citation statement)

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“…Caller queries have assisted in the screening of potentially positive COVID-19 patients, however, the extent to which they have been effectively able to do so has yet to be investigated. To our knowledge, there is one study that assesses the administration of a MCQ during the COVID-19 pandemic, however, it is limited geographically, and by only including a small sample of cardiac arrest calls (12). Of note, it has been recommended that the MCQ process should not interfere with or supersede the delivery of emergent pre-arrival instructions, such as Cardiopulmonary resuscitation (CPR).…”

Section: Introductionmentioning

confidence: 99%

Utility of Emergency Medical Dispatch (EMD) Telephone Screening in Identifying COVID-19 Positive Patients

McCann-Pineo¹,

Li²,

Barbara³

et al. 2021

Prehospital Emergency Care

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BackgroundIn response to the COVID-19 pandemic, Emergency Medical Services (EMS) systems have received guidelines as part of coordinated response efforts aimed at mitigating exposures and ensuring occupational wellbeing, including recommendations of Personal Protective Equipment (PPE) utilization, and modifications of Emergency Medical Dispatch (EMD) caller queries. The aim of the study was to estimate the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of an EMD telephone screening process for the identification of hospital diagnosed COVID-19 positive patients. MethodsA retrospective cohort study was conducted of adult EMS encounters presenting to hospitals within a large health system from March 16-June 30, 2020. EMD telephone screening status was defined as either "positive" or "negative" and was collected from prehospital medical records. COVID-19 positive patients were confirmed via hospital laboratory diagnosis and were matched to their prehospital medical record data. Patient demographics and EMS encounter level data, such as Dispatch Code and Priority level, were also collected. Estimations of sensitivity, specificity, PPV and NPV were made. Emergency telephone screening status was stratified by COVID-19 diagnosis to describe discordant pairs. A c c e p t e d M a n u s c r i p t ResultsOf the 3,443 total encounters screened, there were 652 patients who were subsequently COVID-19 positive per hospital diagnosis (18.9%). Approximately 5% of all encounters did not screen positive on EMD screening but were later COVID-19 positive. Conversely, 44.2% of encounters screened positive for COVID-19, but were subsequently negative. Sensitivity of the EMD telephonic screening was estimated as 75.0% (95% CI 71.7%, 78.3%) and specificity was 45.5% (95% CI 43.7%, 47.4%). The PPV was 24.3% (95% CI 22.5%, 26.0%), and NPV 88.6% (95% 87.0%, 90.3%). ConclusionsThe sensitivity of the EMD telephonic screening process was moderately able to identify COVID-19 positive patients. There is a need to re-evaluate and revise guidelines and recommendations, specifically modified caller queries, as part of ongoing pandemic emergency response efforts in order to reduce transmissions and maximize patient and provider safety.

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Section: Introductionmentioning

confidence: 99%

Utility of Emergency Medical Dispatch (EMD) Telephone Screening in Identifying COVID-19 Positive Patients

McCann-Pineo¹,

Li²,

Barbara³

et al. 2021

Prehospital Emergency Care

View full text Add to dashboard Cite

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Nueva herramienta de comunicación para el entrenamiento de soporte vital básico: smart glasses. Un diseño cuasiexperimental

Aranda-García,

Otero-Agra,

Berlanga-Macías

et al. 2024

Medicina Intensiva

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New communication tool for basic life support training: smart glasses. A quasi-experimental study

Aranda-García,

Otero-Agra,

Berlanga-Macías

et al. 2024

Medicina Intensiva (English Edition)

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The adherence to modified callers queries (MCQ) of emergency medical dispatch (EMD) during COVID-19 outbreaks for out-of-hospital cardiac arrest

Abstract: Aim: Several studies have quantified the ventilation volumes, smaller than anatomical dead space, produced by chest compressions (CCs) during CPR. Other studies have analyzed the artefact

Cited by 3 publications

References 0 publications

Utility of Emergency Medical Dispatch (EMD) Telephone Screening in Identifying COVID-19 Positive Patients

Utility of Emergency Medical Dispatch (EMD) Telephone Screening in Identifying COVID-19 Positive Patients

Nueva herramienta de comunicación para el entrenamiento de soporte vital básico: smart glasses. Un diseño cuasiexperimental

New communication tool for basic life support training: smart glasses. A quasi-experimental study

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