Results of measurements of the cardiac micropotential energies in the amplitude-time intervals recorded by the nanosensor-based hardware and software complex. (March 2021)

• Record Type: Journal Article
• Authors: Avdeeva, Diana K.; Maksimov, Ivan V.; Ivanov, Maxim L.; Yuzhakov, Mikhail M.; Turushev, Nikita V.; Rybalka, Sergey A.; Batalov, Roman E.; Guo, Wenjia; Filippova, Elena B.
• Is Part Of: Measurement. Volume 173(2021)
• Publication Date: 2021-03
• Subjects: Atrial fibrillation -- Nanosensor -- Micropotential -- Analysis -- Interval -- Energy -- Dynamics -- Sinus rhythm -- Non-invasive -- Broadband -- High resolution; Weights and measures -- Periodicals; Measurement -- Periodicals; Measurement; Weights and measures; Periodicals; 530.8
• DOI: 10.1016/j.measurement.2020.108600
• Languages: English
• ISSNs: 0263-2241

Abstract

Highlights: The method for detecting cardiac micropotentials during ECG recording has been developed. The method detects micropotentials on normal and pathological ECG. The measurement data showed high diagnostic value of the method. The micropotentials average energy reduced significantly after the patient's recovery. Abstract: The method for automatic analysis of micropotentials over the entire ECG recording has been developed and the results of measuring the energies of micropotentials in various amplitude-time intervals have been analyzed to assess the diagnostic value of the developed method. The paper presents the results of the study of micropotentials in a patient with atrial fibrillation of 4-year duration recorded by the nanosensor-based hardware and software complex in frequency range from 0 to 10 kHz, with a level of higher than 1 μV and a sampling rate of 64 kHz, whose sinus rhythm restored. The most significant decrease in the energy of micropotentials by an order of magnitude or more was observed in the range of amplitudes (5.1–20.0) μV. The method can be employed for individual use and in hospitals for early detection of asymptomatic ischemia that often leads to sudden cardiac death.