Evidence map›Paper›PMID 36713105›Full record

ArticleEuropean heart journal. Digital health2021

Clinical validation and evaluation of a novel six-lead handheld electrocardiogram recorder compared to the 12-lead electrocardiogram in unselected cardiology patients (EVALECG Cardio).

Mohammad Azram, Noura Ahmed, Lucy Leese, Matthew Brigham, Robert Bowes, Stephen B Wheatcroft, Marcus Ngantcha, Berthold Stegemann, George Crowther, Muzahir H Tayebjee

Open access · goldAbstract read
In one paragraph

Article in European heart journal. Digital health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
4.7field-weighted citation impact, top 4% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. A single-lead ECG based cardiotoxicity detection in patients on polychemotherapy.International journal of cardiology. Heart & vasculature · 2024
    Article
  18. Article
  19. Accuracy of mobile 6-lead electrocardiogram device for assessment of QT interval: a prospective validation study.Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation · 2023
    Article
  20. 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

10 authors at 4 institutions in 2 countries.

Mohammad AzramDepartment of Cardiology, Leeds Teaching Hospitals NHS Trust, Great George Street, Leeds General Infirmary, Leeds LS1 3EX, UK.
Noura AhmedDepartment of Cardiology, Leeds Teaching Hospitals NHS Trust, Great George Street, Leeds General Infirmary, Leeds LS1 3EX, UK.
Lucy LeeseDepartment of Cardiology, Leeds Teaching Hospitals NHS Trust, Great George Street, Leeds General Infirmary, Leeds LS1 3EX, UK.
Matthew BrighamDepartment of Cardiology, Leeds Teaching Hospitals NHS Trust, Great George Street, Leeds General Infirmary, Leeds LS1 3EX, UK.
Robert BowesDepartment of Cardiology, Leeds Teaching Hospitals NHS Trust, Great George Street, Leeds General Infirmary, Leeds LS1 3EX, UK.
Stephen B WheatcroftDepartment of Cardiology, Leeds Teaching Hospitals NHS Trust, Great George Street, Leeds General Infirmary, Leeds LS1 3EX, UK.
Marcus NgantchaHomeland Heart Center/Douala Cardiovascular Research Center, Douala, Cameroon.
Berthold StegemannUniveristy of Aston, Birmingham, UK.
George CrowtherLeeds and York Partnership NHS Foundation Trust and Leeds Institute of Health Sciences, Univeristy of Leeds, Leeds, UK.
Muzahir H TayebjeeDepartment of Cardiology, Leeds Teaching Hospitals NHS Trust, Great George Street, Leeds General Infirmary, Leeds LS1 3EX, UK.ORCID https://orcid.org/0000-0002-9591-3691
Leeds General Infirmary · GBAston University · GBLeeds and York Partnership NHS Foundation Trust · GBUniversity of Douala · CM

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aims: Handheld electrocardiogram (ECG) monitors are increasingly used by both healthcare workers and patients to diagnose cardiac arrhythmias. There is a lack of studies validating the use of handheld devices against the standard 12-lead ECG. The Kardia 6L is a novel handheld ECG monitor which can produce a 6-lead ECG. In this study, we compare the 6L ECG against the 12-lead ECG. Methods and results: A prospective study consisting of unselected cardiac inpatients and outpatients at Leeds Teaching Hospital NHS Trust. All participants had a 12- and 6-lead ECGs. All ECG parameters were analysed by using a standard method template for consistency between independent observers. Electrocardiograms from the recorders were compared by the following statistical methods: linear regression, Bland-Altman, receiver operator curve, and kappa analysis. There were 1015 patients recruited. The mean differences between recorders were small for PR, QRS, cardiac axis, with receiver operator analysis area under the curve (AUC) of >80%. Mean differences for QT and QTc (between recorders) were also small, with AUCs for QT leads of >75% and AUCs for QTc leads of >60%. Key findings from Bland-Altman analysis demonstrate overall an acceptable agreement with few outliers instances (<6%, Bland-Altman analysis). Conclusion: Several parameters recorded by the Kardia 6L (QT interval in all six leads, rhythm detection, PR interval, QRS duration, and cardiac axis) perform closely to the gold standard 12-lead ECG. However, that consistency weakens for left ventricular hypertrophy, QRS amplitudes (Lead I and AVL), and ischaemic changes.

Indexed as

12-Lead ECGHandheld ECGKardia 6LQT intervalRhythmValidation

Identifiers

PMID36713105
PMCPMC9707882
OpenAlexW3201698432

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.