Evidence map›Paper›PMID 33299749›Full record

ArticleAfrican journal of emergency medicine : Revue africaine de la medecine d'urgence2020

An analysis of the descriptors of acute myocardial infarction used by South Africans when calling for an ambulance from a private emergency call centre.

Chloe Buma, Colleen Saunders, Jennifer Watermeyer, Willem Stassen

Open access · goldAbstract read
In one paragraph

Article in African journal of emergency medicine : Revue africaine de la medecine d'urgence, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

5 citing papers in PubMed, 7 citations in OpenAlex.

  1. Multi-method approach to the development of contextual telephone triage systems.African journal of emergency medicine : Revue africaine de la medecine d'urgence · 2026
    Article
  2. Article
  3. The variables predictive of ambulance non-conveyance of patients in the Western Cape, South Africa.African journal of emergency medicine : Revue africaine de la medecine d'urgence · 2023
    Article
  4. Article
  5. Article
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

4 authors at 2 institutions in 1 country.

Chloe BumaDivision of Emergency Medicine, University of Cape Town, South Africa.
Colleen SaundersDivision of Emergency Medicine, University of Cape Town, South Africa.
Jennifer WatermeyerHealth Communication Research Unit, School of Human and Community Development, University of the Witwatersrand, South Africa.
Willem StassenDivision of Emergency Medicine, University of Cape Town, South Africa.
University of Cape Town · ZAUniversity of the Witwatersrand · ZA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionAcute myocardial infarction (AMI) is a time sensitive emergency. In resource limited settings, prompt identification and management of patients experiencing AMI in the pre-hospital setting may minimise the negative consequences associated with overburdened emergency medical and hospital services. Expedited care thus, in part, relies on the dispatch of appropriate pre-hospital medical providers by emergency medical dispatchers. Identification of these patients in call centres is challenging due to a highly diverse South African society, with multiple languages, cultures, and levels of education. The aim of this study was therefore, to describe the terms used by members of the South African public when calling for an ambulance for patients suffering an AMI.

methodsIn this qualitative study, we performed content analysis to identify keywords and phrases that callers used to describe patients who were experiencing an advanced life support (ALS) paramedic-diagnosed AMI. Using the unique case reference number of randomly selected AMI cases, original voice recordings between the caller and emergency medical dispatcher at the time of the emergency were extracted and transcribed verbatim. Descriptors of AMI were identified, coded and categorised using content analysis, and quantified.

resultsOf the 50 randomly selected calls analysed, 5 were not conducted in English. The descriptors used by callers were found to fall into three categories;

conclusionSouth African callers use a consistent set of descriptors when requesting an ambulance for a patient experiencing an AMI. The most common of these are non-pain descriptors related to the heart. These descriptors may ultimately be used in developing validated algorithms to assist dispatch decisions. In this way, we hope to expedite the correct level of care to these time- critical patients and prevent the unnecessary dispatch of limitedly available ALS paramedics to inappropriate cases.

Indexed as

Acute myocardial infarctionChest painEmergency medical dispatchersHeart attack

Identifiers

PMID33299749
PMCPMC7700975
OpenAlexW3006271752

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.