VivaLNK monitor checks ECG during six-minute walk

  • March 2, 2021
  • Steve Rogerson

California-based VivaLNK has introduced a wearable monitor to capture ECG and heart rate data wirelessly during a six-minute walk test.

The test is a common exercise routine for patients with pulmonary hypertension, congestive heart failure, pre-lung transplant evaluation, interstitial lung disease or COPD. It involves monitoring a patient while they walk as far as they can in six minutes and assessing cardiopulmonary function.

The monitor is for clinical research in applications such as cardiac rehab, digital biomarkers of arrhythmia onset, and pharmaceutical clinical trials, and includes a wearable ECG patch, a mobile app and cloud data services.

In these studies, patients wear the wireless ECG patch while a clinician monitors and controls the test using a mobile app. Data collected during the test are then consolidated into a central database in the cloud for post analysis.

In one study, up to 80 subjects across multiple sites are monitored for their ECG and heart rate before, during and after the exercise. A significant part of the technology selection includes device comfort for the patient and stability of the ECG during movement, as well as a mobile app designed for the protocol.

At 7.5g, the monitor is barely noticeable when worn. In addition, built-in algorithms reduce motion artefacts to provide a smooth ECG signal during activity. For the study, VivaLNK also customised a mobile app to facilitate data capture even in the event of intermittent network disconnections.

“Medical wearables are making it possible to explore new, potentially meaningful outcomes in clinical studies without adding much additional burden to patients or their clinicians,” said Robert Roscigno, vice president at Gossamer Bio.

Aside from the walk test, VivaLNK’s medical data platform and wearable sensors are used in other applications such as mobile cardiac telemetry, oncology remote patient monitoring and virtual hospital patient monitoring.

VivaLNK provides connected healthcare technology for remote patient monitoring. It leverages physiology-optimised medical wearable sensors and data services to enable a deep and more clinical relationship between provider and patient.