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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Narayanaswamy, S. Berbari, E.J. Lander, P. Lazzara, R. |
| Copyright Year | 1993 |
| Description | Author affiliation: Univ. of Oklahoma Health Sci. Center, Oklahoma City, OK, USA (Narayanaswamy, S.; Berbari, E.J.; Lander, P.; Lazzara, R.) |
| Abstract | Selective beat signal averaging and spectral analysis were implemented to identify whether reentry, triggered activity or parasystole is the mechanism of the isolated premature ventricular contraction (PVC). 2-hour, high resolution ECG recordings were digitally obtained from 9 patients with frequent PVCs (>250/hr). For reentry, in 7/9 patients with a positive average for late potentials (LP) there were no changes of LP in sinus beats before and after PVCs. However, changes in the T/U waves in the difference waveform between the pre-PVC beat and its precedent beat (in 2/9 patients), and their T/U wave amplitudes (in 9/9 patients, mean amplitude difference of 0.0269 mV) implied a triggered activity, mechanism. Also, significant periodicities in PVC interval series and low correlation between sinus and PVC intervals (in 9/9 patients), suggested a parasystolic mechanism. Based on the limited data set, triggered activity and parasystole may be significant PVC mechanisms while reentry may not.< |
| Starting Page | 81 |
| Ending Page | 84 |
| File Size | 316538 |
| Page Count | 4 |
| File Format | |
| ISBN | 0818654708 |
| DOI | 10.1109/CIC.1993.378499 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1993-09-05 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Spectral analysis Electrocardiography Signal processing Heart rate variability Signal resolution Rhythm Cities and towns Signal generators Humans Signal analysis |
| Content Type | Text |
| Resource Type | Article |
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