Car Seats with Capacitive ECG Electrodes Can Detect Cardiac Pacemaker Spikes

Area of Science:

• Biomedical Engineering
• Cardiovascular Technology

Background:

• Capacitive electrocardiograph (cECG) systems offer unobtrusive health monitoring.
• Current cECG applications focus on scenarios where high diagnostic signal quality is not paramount.
• Research is exploring cECG's potential in diverse patient populations.

Purpose of the Study:

• To assess the feasibility of cECG for individuals with implanted cardiac pacemakers.
• To expand the application scope of cECG beyond different measurement scenarios to include specific patient profiles.
• To evaluate cECG signal quality during pacemaker stimulation.

Main Methods:

• Recruited 20 patients with cardiac pacemakers during routine device follow-up.
• Conducted cECG measurements using a specialized seat with integrated electrodes.
• Analyzed multichannel cECG recordings of unipolar and bipolar pacemaker stimulation.
• Employed a pacemaker spike detection algorithm and evaluated performance using Fβ scores.

Main Results:

• Achieved Fβ scores ranging from 0.62 to 0.78 across 3652 pacing events.
• Optimized algorithm parameters yielded Fβ scores of 0.32–0.49 for bipolar and 0.78–0.88 for unipolar stimulation.
• Demonstrated the influence of algorithm parameters and channel selection on detection accuracy.

Conclusions:

• This study establishes the first evidence for the feasibility of cECG monitoring in patients with cardiac pacemakers.
• cECG systems show potential for daily health monitoring in individuals with implanted cardiac devices.
• Further research can refine cECG technology for reliable cardiac monitoring in pacemaker patients.