Assessment of Non-Invasive Measurements of Oxygen Saturation and Heart Rate with an Apple Smartwatch: Comparison with a Standard Pulse Oximeter.
Carmen Spaccarotella, Alberto Polimeni, Cinzia Mancuso...
https://pubmed.ncbi.nlm.nih.gov/35329793Actively Recruiting
Age: 18Years +
All Genders
ID07311135
Accuracy of Wrist-worn Pulse Oximeter SpO2 Measurements in Patients Diagnosed With Pulmonary Hypertension
Led by Golden Jubilee National Hospital · Updated on 2026-02-17
20
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are investigating how accurately smartwatches can measure oxygen levels in people with pulmonary hypertension, a condition affecting blood pressure in the lungs. This pilot study compares smartwatch oxygen readings to those from a finger probe and arterial blood samples taken from the wrist. The main focus is on measuring oxygen while resting, after exercise, and during a controlled low oxygen breathing test. During a single hospital visit lasting about three hours, participants will undergo several tests. These include a six-minute walk test to measure oxygen after exercise and a hypoxic challenge where they breathe air with reduced oxygen through a mask. Arterial blood samples, smartwatch readings, and finger pulse oximeter data will be collected at rest, after exercise, and during the hypoxic challenge to compare accuracy. Participants will have an arterial line placed for blood sampling and will be monitored for safety during and after testing. All data will be anonymized and securely stored. The study aims to recruit about 20 patients diagnosed with pulmonary hypertension who can perform the walk test and provide informed consent. Researchers will analyze how closely smartwatch measurements match the gold standard arterial oxygen levels.
CONDITIONS
Brief Title
Accuracy of Smartwatches in Measuring Oxygen Levels in Patients With Pulmonary Hypertension: A Pilot Study
Who Can Participate
Age: 18Years +
All Genders
Eligibility Criteria
You may qualify if you...
- Aged 18 years and older
- Diagnosed with pulmonary hypertension by right heart catheterisation showing baseline mean pulmonary artery pressure > 20mmHg and pulmonary vascular resistance > 2 Woods Units
- Able to perform a six-minute walk test
- Able to give written informed consent
You will not qualify if you...
- Peripheral arterial disease
- Tattoos or skin markings covering the dorsal wrist
- Resting oxygen saturation (SpO2) less than 88%
- Severe medical conditions preventing participation or with life expectancy less than 3 months
- Patients with bleeding disorders
- Patients on anticoagulation except those on anticoagulation solely for pulmonary arterial hypertension long term survival benefit, who may stop anticoagulation for 1 week before the study visit if they choose
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
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Your Study Journey
Screening
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person) at outpatient clinic for eligibility screening and study information
Diagnostic Evaluation
Duration - Approximately 3 hours
Participants undergo a single study visit where oxygen saturation measurements are taken using a wrist-worn pulse oximeter, arterial blood gas sampling via an arterial line, and a finger probe pulse oximeter at rest, after exercise, and during a hypoxic challenge.
1 study visit (in-person) including arterial line insertion, six-minute walk test, hypoxic challenge, and monitoring
Monitoring
Duration - 30 minutes
Participants are monitored for 30 minutes after arterial line removal to ensure safety before leaving the study visit.
Post-procedure monitoring during the same study visit
Trial Site Locations
Total: 1 location
1
Golden Jubilee National Hospital
Glasgow, United Kingdom, G81 4DY
Actively Recruiting
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Research Team
M
Martin Johnson, BA, MBChB(Hons), MD, FRCP
J
Jamie Ingram, MBChB, BMSc, PGCert
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
1
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Published Research Related To This Trial
Comparison of SpO2 and heart rate values on Apple Watch and conventional commercial oximeters devices in patients with lung disease.
Leonardo Zumerkorn Pipek, Rafaela Farias Vidigal Nascimento, Milena Marques Pagliarelli Acencio...
https://pubmed.ncbi.nlm.nih.gov/34556765Accuracy of the Apple Watch in measuring oxygen saturation: comparison with pulse oximetry and ABG.
Banu Arslan, Kemal Sener, Ramazan Guven...
https://pubmed.ncbi.nlm.nih.gov/37440093