Key result
Novel 125Hz algorithm detects pacemaker pulses in simulated ECGs with ~98% sensitivity.
Why the study?
Accurate assessment of pacemaker function or malfunction is essential to interpret pacemaker therapy and patient symptoms, motivating methods to detect pulses at low sampling frequencies.
Does an innovative hybrid approach accurately detect pacemaker pulses at a low sampling frequency of 125Hz in simulated ECG conditions?
Does an innovative hybrid approach accurately detect pacemaker pulses at a low sampling frequency of 125Hz in simulated ECG conditions?
Answers are grounded in this paper and cite their sources.
An innovative algorithm can accurately detect pacemaker pulses at a low sampling frequency of 125Hz, enabling long-term continuous assessment using wearable ECG monitors.
Accurate assessment of pacemaker function or malfunction is essential to make clinical interpretations on pacemaker therapy and patient symptoms. This article presents an innovative approach for detecting pacemaker pulses at sampling frequency as low as 125Hz. The proposed method is validated in wide range of simulated clinical ECG conditions such as arrhythmia (sinus rhythms, supraventricular rhythms, and AV blocks), pulse amplitudes (~100µV to ~3mV), pulse durations (~100µs to ~2ms), pacemaker modes and types (fixed-rate or on-demand single chamber, dual chamber, and bi-ventricular pacing), and physiological noise (tremor). The proposed algorithm demonstrates clinically acceptable detection accuracies with sensitivity and PPV of 98.1 ± 4.4 % and 100 %, respectively. In conclusion, the approach is well suited for integration in long-term wearable ECG sensor devices operating at a low sample frequency to monitor pacemaker function.Clinical Relevance- The proposed system enables real-time long-term continuous assessment of the proper functioning of implanted pacemaker and progression of treatment for cardiac conditions using battery-powered wearable ECG monitors.
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Nallathambi et al. (2020) studied Pacemaker therapy. Hybrid approach for detecting pacemaker pulses at 125Hz sampling frequency was evaluated on Detection accuracy (sensitivity and PPV). An innovative algorithm for detecting pacemaker pulses at a low sampling frequency of 125Hz demonstrated high accuracy in simulated ECG conditions, with a sensitivity of 98.1% and PPV of 100%.
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