Medical science has been experimenting with smart devices for several years to determine whether these products can detect circulatory system diseases, and a study presented at the 2022 meeting of the European Society of Cardiology (ESC 2022) seems to strongly suggest that the answer is a resounding yes. The eBRAVE-AF study of more than 5,500 enrollees of middle age or older demonstrated the ability of a smartphone camera and a downloadable app to at beat conventional screening for atrial fibrillation (AF), a finding that could save lives and boost the prospects of device makers in the digital health space.
Factor XIa inhibitors milvexian and asundexian, hailed as the next-generation class of anticoagulants, earned mixed reviews on phase II data presented during the European Society of Cardiology Congress 2022. However, developers Bristol Myers Squibb Co./Janssen Pharmaceutical Co. and Bayer AG, respectively, are moving into late-stage testing, citing clear mechanisms of action that put the FXIa drugs at least on par with approved factor Xa drugs in terms of efficacy while offering potentially better safety profiles that could give physicians an option for patients with stroke or atrial fibrillation who are currently undertreated with anticoagulants due to bleeding risks.
With the launch of the Mawi Heart Patch in the U.S., physicians and patients have a lightweight, wireless heart monitoring system that provides seven days of cardiac information. Using a disposable two-lead system affixed to the chest, the device provides a detailed report within 24 hours and can reduce time to diagnosis by 97%, Mawi Inc. said.
The U.S. FDA has cleared the first clinical grade watch for characterizing atrial fibrillation (afib), the most common type of heart arrhythmia in which the heart beats too slowly or irregularly. Developed by Verily, the health tech arm of Alphabet Inc., together with IRhythm Technologies Inc., the Zio Watch will leverage the ability of IRhythm’s Zeus system to diagnose cardiac arrhythmias by combining wearable biosensing with cloud-based data analytics and artificial intelligence.
Abbott Laboratories reported results from its PERSIST-END study demonstrating that close to nine in 10 patients treated for persistent atrial fibrillation (AF) with its Tacticath contact force ablation, sensor-enabled (Tacticath SE) were free of symptoms of their arrhythmia over 15 months of follow-up. The study’s findings, which supported a November 2021 FDA approval for persistent AF, also showed significant improvement in patients’ quality of life and a more than 50% cut in the use of health care resources, the company said.
Eko Devices Inc. launched a redesigned app and smart stethoscope system to detect heart disease during a regular physical, potentially reducing the time to diagnosis and treatment for America’s number one killer. The system incorporates artificial intelligence (AI) to identify heart murmurs and atrial fibrillation with performance the company says is on par with cardiologists.
For about one-third of stroke patients, the cause of their cerebrovascular accident (CVA) is unknown at the time of hospitalization, but crucial to determine to prevent subsequent strokes. Electrocardiogram (ECG) monitoring in the 24 to 48 hours after a stroke detects atrial fibrillation (AF) in about 5% of patients. Remote monitoring with a noninvasive device detects far more cases and provides the opportunity to quickly head off secondary strokes, preserving lives and reducing costs of care, according to a study published by Royal Philips NV researchers.
Several recent studies highlight the rapidly expanding applications for neuromodulation using bioelectronic devices. A pair of articles in the Journal of the American Heart Association and Journal of the American College of Cardiology focused on the benefits to patients with heart failure and those at risk of post-operative atrial fibrillation, respectively. A study published in Brain Stimulation found that 85% of tinnitus patients experienced resolution of their symptoms when using a neuromodulation device.
Abbott Laboratories reported the commencement of a pivotal clinical trial for its Aveir pacemaker in a two-device configuration to provide dual-chamber pacing without the need for leads to deliver the charge. This configuration required the development of i2i technology to ensure that the two Aveirs communicated in a manner that ensures consistent pacing, but the 500-enrollee study has a long road ahead of it before the company can finalize the application with the FDA.
The U.S. Preventive Services Task Force (USPSTF) has once again broached the question of whether screening for atrial fibrillation (AF) in asymptomatic patients is a worthwhile exercise in public health, and once again the answer is “we don’t know.”
