Evidence map›Paper›PMID 33890856›Full record

ArticleJournal of medical Internet research2021

Web-Based Smartphone Algorithm for Calculating Blood Pressure From Photoplethysmography Remotely in a General Adult Population: Validation Study.

Paul Holyoke, Karthika Yogaratnam, Elizabeth Kalles

Registry-linked trialOpen access · goldAbstract readValidation Study
In one paragraph

Article in Journal of medical Internet research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04082819 (Determining the Accuracy of the HeartBeat Algorithm for Calculating Blood Pressure), which is not on this map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 31% 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.

NCT04082819 nacompletednot on this map

Determining the Accuracy of the HeartBeat Algorithm for Calculating Blood Pressure

TypeinterventionalSponsorSE HealthRan2019 to 2019Enrolled94ConditionsLow Blood Pressure, Blood Pressure, High Blood Pressure, HypertensionArmsContec CMS50EW, Sphygmomanometer
3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 5 citations in OpenAlex.

  1. Trial
  2. 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

3 authors.

Paul HolyokeSE Research Centre, SE Health, Markham, ON, Canada.ORCID 0000-0002-4130-5383
Karthika YogaratnamSE Research Centre, SE Health, Markham, ON, Canada.ORCID 0000-0002-2199-2593
Elizabeth KallesSE Research Centre, SE Health, Markham, ON, Canada.ORCID 0000-0001-5270-4155

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOutside of a clinical setting, oscillometric devices make remote monitoring of blood pressure and virtual care more convenient and feasible. HeartBeat Technologies Ltd developed a novel approach to measuring blood pressure remotely after an initial blood pressure reading by a nurse using the conventional measurement method. Using a finger pulse oximeter, a photoplethysmogram wave is transmitted by Bluetooth to a smartphone or tablet. A smartphone app (MediBeat) transmits the photoplethysmogram to a server for analysis by a proprietary algorithm-the person's current blood pressure is sent back to the smartphone and to the individual's health care provider.

objectiveThis study sought to determine whether the HeartBeat algorithm calculates blood pressure as accurately as required by the European Society of Hypertension International Protocol revision 2010 (ESH-IP2) for validation of blood pressure measuring devices.

methodsESH-IP2 requirements, modified to conform to a more recent international consensus statement, were followed. The ESH-IP2 establishes strict guidelines for the conduct and reporting of any validation of any device to measure blood pressure, including using the standard manual blood pressure instrument as a comparator and specific required accuracy levels for low, medium, and high ranges of blood pressure readings. The consensus statement requires a greater number of study participants for each of the blood pressure ranges. The validation of the accuracy of the algorithm was conducted with a Contec CMS50EW pulse oximeter and a Samsung Galaxy XCover 4 smartphone.

resultsThe differences between the HeartBeat-calculated and the manually measured blood pressures of 62 study participants did not meet the ESH-IP2 standards for accuracy for either systolic or diastolic blood pressure measurements. There was no discernible pattern in the inaccuracies of the HeartBeat-calculated measurements.

conclusionsThe October 4, 2019 version of the HeartBeat algorithm, implemented in combination with the MediBeat app, a pulse oximeter, and an Android smartphone, was not sufficiently accurate for use in a general adult population.

trial registrationClinicalTrials.gov NCT04082819; http://clinicaltrials.gov/ct2/show/NCT04082819.

Indexed as

PhotoplethysmographySmartphoneAdultAlgorithmsBlood PressureHumansInternetblood pressure measurementhypertensionremote monitoring

Identifiers

PMID33890856
PMCPMC8105754
OpenAlexW3137177272

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.