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The Myant // PACE Cardiology Study

Study Details

In 2021, the PACE Cardiology Clinic and Myant partnered to launch a 400 participant study at the PACE Cardiology Clinic of Newmarket, Ontario. The study sought to quantify the performance of Myant’s Skiin family of garments (underwear, chest band, tank top, and bra) in their ability to support and monitor cardiac patients. During the study (titled Non-Invasive Monitoring of Arrhythmias Electrocardiogram (ECG) using Textile Sensors)*, the ECG of patients was recorded for 20 minutes using a clinical ECG device, as well as the Skiin biosensing garment. This comparison would ultimately test the accuracy and performance of Skiin with other licensed medical devices.

This study and partnership comes in response to the challenges of currently widespread centralized, episodic healthcare, and its many limitations. Today’s healthcare systems are structured to respond reactively to healthcare emergencies and illnesses, but are ill prepared to anticipate and prevent them. It relies on in-person visits and therefore provides episodic and symptom-focused care. 

PACE and Myant believe that this partnership and product validation will ultimately aid patients by allowing them to have their heart health quantified and measured remotely—from the safety of their own homes. During the study, Skiin garments will continuously measure a wearer’s ECG with sensors embedded into each garment, and patients will be able to share this data with a PACE cardiologist who can monitor each wearer’s immediate and overall wellness. As a result, cardiologists will have the data to contextualize cardiac events, and patients should expect to see an increase in the speed of cardiac treatment, a reduction in wait times, and be provided with healthcare services that are continuous and preventative, instead of episodic and reactive. 

Procedure and Results

Participants had their ECG monitored for 20 minutes using a routine clinical ECG device, as well as a Skiin biosensing garment. This procedure was broken up into two Phases.

In Phase 1, participants were over the age of 40 and wore only the Skiin underwear band along with the routine ECG device. Phase 1 participants were asked to maintain two postures during measurement: 10 minutes lying on their back, and 10 minutes seated. 

The Research Ethics Board of the Southlake Regional Health Centre allowed PACE to recruit up to 100 participants for testing of the Skiin underwear band (Phase 1), and up to 300 participants to test the Skiin underwear bottoms, chest band, and tank top/bras (900 participants in total - Phase 2). This sample size allowed for a diversity of both body sizes and heart conditions of participants. 

The Research Ethics Board of the Southlake Regional Health Centre allowed PACE to recruit up to 100 participants for testing of the Skiin underwear band (Phase 1), and up to 300 participants to test the Skiin underwear bottoms, chest band, and tank top/bras (900 participants in total - Phase 2). This sample size allowed for a diversity of both body sizes and heart conditions of participants. 

While study data is still being collected and analyzed for Phase 2, the Phase 1 findings are very promising, positioning the Skiin biosensing family of garments as an effective ECG monitoring device. Preliminary insights include:

  • Participants have reported that the textile electrodes are comfortable and no adverse reactions have been observed so far;
  • Similarly to standard gel ECG, the Skiin ECG is steady and readable when static, but has motion artifacts during movement;
  • Outside of these easily recognizable motion artifacts, the R-peaks are detected synchronously with Skiin; 
  • The signal-noise ratio with dry textile electrode is sufficient for rhythm interpretation in more than 80% of users without any skin preparation, but is insufficient in the 10 to 20% of people with the driest skin;
  • Applying skin moisturizer, as recommended by Myant, before donning the Skiin garments improves the signal quality, making the signal usable in more than 95% of participants: 
  • the reason for lower ECG quality in 20 participants out of the 352 participants tested with moisturizer is under investigation
  • The algorithm used to quantify ECG may be biased for certain ECG (e.g., a heart pathology causing a low-amplitude QRS segment). 

To request Skiin’s whitepaper on the use of our biosensing garments to monitor ECG, please fill out the form below and we will contact you as soon as possible.

*This study was amended from a 100 participant study with the Skiin chest band in 2020.

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