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December 1, 2022BMJ OpenOpen Access

Contactless monitoring of respiratory rate (RR) and heart rate (HR) in non-acuity settings: a clinical validity study

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Key result

Contactless video monitoring of respiratory and heart rates in non-acuity settings showed high correlation with standard methods (R^2 0.88-0.91) and low mean absolute errors (0.84 and 2.15 bpm).

Why the study?

Does a contactless video monitoring system accurately measure respiratory rate and heart rate compared to standard monitors in non-acuity hospital settings?

Population

158 subjects in a low-acuity setup (general ward and dialysis unit) at a tertiary care hospital in India

Comparison

Contactless monitoring system using a video… vs Alice NightOne and manual counts

Design

Cross-sectional

Authors

MVMuralidhar D VarmaTSTrevor Francis SequeiraNNNavaneetha Krishnan S Naidu

Discussion

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Overview

Continuous wearable monitoring appears feasible on general wards; hypothesis-generating for clinical outcome benefits in prospective trials.

Study Design

Type

Cross-Sectional (n=158)

Multicenter

No

Structured PICO

Does a contactless video monitoring system accurately measure respiratory rate and heart rate compared to standard monitors in non-acuity hospital settings?

P
Population
158 subjects in a low-acuity setup (general ward and dialysis unit) at a tertiary care hospital in India.
E
Exposure
Contactless monitoring system using a video camera to measure vital parameters
C
Comparator
Alice NightOne and manual counts (existing FDA-approved monitors)
O
Outcome
Accuracy of vital parameters (respiratory rate and heart rate) measurementsurrogate

Contactless video monitoring provides an accurate and unobtrusive method for measuring respiratory and heart rates in non-acuity hospital settings.

Limitations

  • Further research is needed to validate its dependability and utility in other settings, including acute care.

Cite This Study

Varma et al. (2022) conducted a cross-sectional in Low-acuity hospitalised patients (n=158). Contactless video monitoring vs. Alice NightOne and manual counts was evaluated on Vital parameters (RR and HR). Contactless video monitoring of respiratory and heart rates in non-acuity settings showed high correlation with standard methods (R^2 0.88-0.91) and low mean absolute errors (0.84 and 2.15 bpm).

synapsesocial.com/papers/6ab46b6f0df85a30da208953https://doi.org/10.1136/bmjopen-2022-065790
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Validation of a novel contact-free heart and respiratory rate monitor2021 · 11 citations
  2. 2A Wearable Morphic Sensor for Unobtrusive Heart Rate and Respiratory Rate Monitoring in ICU Patients: A Pilot Validation Study2026
  3. 3Radar-Based Contactless Monitoring in Different Inpatient Nursing Care Settings: Mixed Methods Feasibility Study2026
  4. 4Clinical validation of video-based vital sign monitoring in the intensive care unit: a prospective cohort study2026
  5. 5Feasibility of monitoring heart and respiratory rates using non-wearable devices and consistency of the measured parameters: A pilot feasibility study (Preprint)2024