What is the clinical evidence from this study?

Study design: Observational. Population: critically ill (n=15). Intervention: wearable morphic sensor system vs. clinical patient monitors and a ventilator. Primary outcome: heart rate (HR) and respiratory rate (RR) accuracy (mean bias of -0.39 ± 1.99 bpm for HR and 0.06 ± 0.90 bpm for RR).

What does this research mean for the field?

A skin-adhesive-free wearable morphic sensor placed on the back accurately monitors continuous heart rate and respiratory rate in bed-bound ICU patients. Novelty: ClaimNovelty.METHODOLOGICAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate the clinical accuracy of an unobtrusive, wearable morphic sensor system for continuous heart rate and respiratory rate monitoring in intensive care unit patients.

September 28, 2026SensorsOpen Access

A Wearable Morphic Sensor for Unobtrusive Heart Rate and Respiratory Rate Monitoring in ICU Patients: A Pilot Validation Study

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Key result

Wearable morphic sensors accurately track ICU vital signs with ~0.4 bpm mean HR bias.

mean bias of -0.39 ± 1.99 bpm for HR and 0.06 ± 0.90 bpm for RR
n=15

Why the study?

Does a wearable morphic sensor accurately monitor heart rate and respiratory rate compared to standard clinical monitors in ICU patients?

Population

15 critically ill patients in an intensive care unit (ICU)

Comparison

Wearable morphic sensor system vs Reference measurements from clinical patient…

Design

Other

Authors

TJTitus Jayarathna CPCaitlin Polley PBPaul P. Breen

Discussion

Member takes

Overview

May support continuous ICU monitoring; hypothesis-generating pending larger validation studies.

Key Points

To evaluate the clinical accuracy of an unobtrusive, wearable morphic sensor system for continuous heart rate and respiratory rate monitoring in intensive care unit patients.
Enrolled 15 intensive care unit patients fitted with a hybrid piezoresistive/piezoelectric disk sensor placed on the back without skin adhesive.
Processed signals using discrete wavelet transform and an adaptive peak detection algorithm via a custom wireless recorder.
Compared sensor-derived vitals against measurements from bedside clinical patient monitors and mechanical ventilators.
Heart rate monitoring demonstrated a mean bias of −0.39 ± 1.99 beats per minute with high correlation to clinical monitors (R² = 0.982).
Respiratory rate monitoring showed a mean bias of 0.06 ± 0.90 breaths per minute and an R² of 0.966, matching agreement levels between two clinical reference devices.

Study Design

Type

Observational (n=15)

Structured PICO

Does a wearable morphic sensor accurately monitor heart rate and respiratory rate compared to standard clinical monitors in ICU patients?

Population

15 critically ill patients in an intensive care unit.

Exposure

Wearable morphic sensor system (hybrid piezoresistive/piezoelectric disk-shaped sensor placed on patients' backs)

Comparator

Reference measurements from clinical patient monitors and a ventilator

Outcome

Accuracy of heart rate (HR) and respiratory rate (RR) monitoring (mean bias and standard deviation)surrogate

Main Result

Mean Difference: -0.39

A novel wearable morphic sensor provides accurate, unobtrusive, and continuous heart rate and respiratory rate monitoring in bed-bound ICU patients.

Limitations

Step-down ward and ambulatory applications remain to be validated in future studies.
Step-down ward and ambulatory applications remain to be validated in future studies

Cite This Study

Jayarathna et al. (2026) conducted an observational in critically ill (n=15). wearable morphic sensor system vs. clinical patient monitors and a ventilator was evaluated on heart rate (HR) and respiratory rate (RR) accuracy (mean bias of -0.39 ± 1.99 bpm for HR and 0.06 ± 0.90 bpm for RR). A wearable morphic sensor system accurately monitored vital signs in ICU patients, showing a mean bias of -0.39 ± 1.99 bpm for heart rate and 0.06 ± 0.90 bpm for respiratory rate.

synapsesocial.com/papers/6ab9b4d47822ec8fc3d8ef9e https://doi.org/10.3390/s26196052

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September 28, 2026SensorsOpen Access

A Wearable Morphic Sensor for Unobtrusive Heart Rate and Respiratory Rate Monitoring in ICU Patients: A Pilot Validation Study

View Full Paper

Ask AI

Bookmark

Key result

Wearable morphic sensors accurately track ICU vital signs with ~0.4 bpm mean HR bias.

mean bias of -0.39 ± 1.99 bpm for HR and 0.06 ± 0.90 bpm for RR
n=15

Why the study?

Does a wearable morphic sensor accurately monitor heart rate and respiratory rate compared to standard clinical monitors in ICU patients?

Population

15 critically ill patients in an intensive care unit (ICU)

Comparison

Wearable morphic sensor system vs Reference measurements from clinical patient…

Design

Other

Authors

TJTitus Jayarathna CPCaitlin Polley PBPaul P. Breen

Discussion

Member takes

Overview

May support continuous ICU monitoring; hypothesis-generating pending larger validation studies.

Key Points

To evaluate the clinical accuracy of an unobtrusive, wearable morphic sensor system for continuous heart rate and respiratory rate monitoring in intensive care unit patients.
Enrolled 15 intensive care unit patients fitted with a hybrid piezoresistive/piezoelectric disk sensor placed on the back without skin adhesive.
Processed signals using discrete wavelet transform and an adaptive peak detection algorithm via a custom wireless recorder.
Compared sensor-derived vitals against measurements from bedside clinical patient monitors and mechanical ventilators.
Heart rate monitoring demonstrated a mean bias of −0.39 ± 1.99 beats per minute with high correlation to clinical monitors (R² = 0.982).
Respiratory rate monitoring showed a mean bias of 0.06 ± 0.90 breaths per minute and an R² of 0.966, matching agreement levels between two clinical reference devices.

Study Design

Type

Observational (n=15)

Structured PICO

Does a wearable morphic sensor accurately monitor heart rate and respiratory rate compared to standard clinical monitors in ICU patients?

Population

15 critically ill patients in an intensive care unit.

Exposure

Wearable morphic sensor system (hybrid piezoresistive/piezoelectric disk-shaped sensor placed on patients' backs)

Comparator

Reference measurements from clinical patient monitors and a ventilator

Outcome

Accuracy of heart rate (HR) and respiratory rate (RR) monitoring (mean bias and standard deviation)surrogate

Main Result

Mean Difference: -0.39

A novel wearable morphic sensor provides accurate, unobtrusive, and continuous heart rate and respiratory rate monitoring in bed-bound ICU patients.

Limitations

Step-down ward and ambulatory applications remain to be validated in future studies.
Step-down ward and ambulatory applications remain to be validated in future studies

Cite This Study

synapsesocial.com/papers/6ab9b4d47822ec8fc3d8ef9e https://doi.org/10.3390/s26196052

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