Evidence map›Paper›PMID 41062557›Full record

ArticleScientific reports2025

A popular validated home monitor uses the maximum oscillogram amplitude to compute blood pressure.

Vishaal Dhamotharan, Mahdi Jazini, Ravinder Kumar, Hadi Daher, Aman Mahajan, Jin-Oh Hahn, Sanjeev G Shroff, Ramakrishna Mukkamala

Abstract read
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In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

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0 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Vishaal DhamotharanDepartment of Bioengineering, University of Pittsburgh, 408 Benedum Hall 3700 O'Hara Street, Pittsburgh, PA, 15261, USA.
Mahdi JaziniDepartment of Bioengineering, University of Pittsburgh, 408 Benedum Hall 3700 O'Hara Street, Pittsburgh, PA, 15261, USA.
Ravinder KumarDepartment of Bioengineering, University of Pittsburgh, 408 Benedum Hall 3700 O'Hara Street, Pittsburgh, PA, 15261, USA.
Hadi DaherDepartment of Bioengineering, University of Pittsburgh, 408 Benedum Hall 3700 O'Hara Street, Pittsburgh, PA, 15261, USA.
Aman MahajanDepartment of Bioengineering, University of Pittsburgh, 408 Benedum Hall 3700 O'Hara Street, Pittsburgh, PA, 15261, USA.
Jin-Oh HahnDepartment of Mechanical Engineering, University of Maryland, College Park, USA.
Sanjeev G ShroffDepartment of Bioengineering, University of Pittsburgh, 408 Benedum Hall 3700 O'Hara Street, Pittsburgh, PA, 15261, USA.
Ramakrishna MukkamalaDepartment of Bioengineering, University of Pittsburgh, 408 Benedum Hall 3700 O'Hara Street, Pittsburgh, PA, 15261, USA. rmukkamala@pitt.edu.

Funding

Smart Cuff: Multi-Parameter Hemodynamic Monitoring via a Single Convenient DeviceR01HL163691 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI RAMAKRISHNA MUKKAMALA, Aman Mahajan · 2023 to 2026
$2.7M
NHLBI NIH HHS HL163691NHLBI NIH HHS R01 HL163691
6 · The paper itself

Abstract

Oscillometric cuff devices are believed to use fixed ratio algorithms to compute blood pressure (BP) from the oscillogram (cuff pressure oscillation height versus applied cuff pressure function). However, variations in the cuff transducer that occur each time the cuff is wrapped on a given arm and variations in pulse pressure can alter the oscillogram shape and the ratios for computing BP. A popular validated home BP monitor was studied to determine whether and how it considers these effects. The monitor, with its Universal cuff placed on four different mandrels, was analyzed using a non-invasive BP simulator at various settings and an external pressure sensor to construct the oscillograms. Several algorithms were tested to estimate the home monitor BP values. A fixed ratio algorithm estimated the home monitor systolic and diastolic BP with errors of 5.8 and 1.5 mmHg. A variable ratio algorithm in which the ratios go inversely with the maximum oscillogram amplitude estimated the home monitor values with errors of just 1.5 and 0.8 mmHg. Using the maximum oscillogram amplitude may be particularly helpful for mitigating the variable pulse pressure effect. This study shows how oscillometric cuff devices likely work, which is important for understanding and improving their accuracy.

Indexed as

Blood PressureBlood Pressure DeterminationBlood Pressure Monitoring, AmbulatoryBlood Pressure MonitorsOscillometryAlgorithmsHumansAutomatic cuff deviceBlood pressure computationFixed ratio algorithmMaximum oscillogram amplitudeOscillometryVariable ratio algorithm

Identifiers

PMID41062557
PMCPMC12508115

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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.