[The effect of paroxysmal atrial fibrillation during ischemic heart disease on parameters of atrial signal-averaged electrocardiography].
The aim of this study was assess the correlation between duration of paroxysmal atrial fibrillation (PAF) during ischemic heart disease (IHD) and atrial signal-averaged electrocardiogram (ALP). The study population consisted of 75 patients with PAF during IHD whose were divided according to duration of PAF into three groups; gr. I- < 1 year, gr. II-1-5 years, gr. III- > 5 years. The control group (gr. IV) composed of 50 healthy. Recording of ALP were carried out by HIPEC-200 HA. We calculated time domain parameters of ALP; root mean square voltage of the signals in the last 10, 20 and 30 ms of the filtered P-wave and filtered P-wave duration. During frequency analysis of ALP we calculated frequency parameters in range from 40 to 400 Hz in linear scale; area ratio 20-50/0-20 Hz and marked the highest peak amplitude of signals and in logarithmic scale; defined energy spectra of frequency component > -60 dB and value of frequency component 40 Hz. Our results suggest that: 1. The values of root mean square voltage of the signals in the last 10 ms of the filtered P-wave have been decreasing according to passage of duration PAF. 2. Patients with longer anamnesis of PAF have had longer duration of filtered P-wave. 3. Proposed parameters of frequency analysis of ALP in both scales (linear and logarithmic) seemed useless in differential diagnosis of patients with PAF during IHD and healthy.
Banasiak
W
W
Kliniki Chorób Wewnetrznych Wojskowego Szpitala Klinicznego we Wroclawiu.
Kokot
K
K
Telichowski
C
C
Pieróg
M
M
Lacheta
W
W
Fuglewicz
A
A
Wiech
K
K
Zapałowicz
R
R
D000328:Adult; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000150:complications*; D012815:Signal Processing, Computer-Assisted; D013614:Tachycardia, Paroxysmal / Q000175:diagnosis*; D013997:Time Factors
Wpływ czasu trwania napadowego migotania przedsionków w przebiegu choroby niedokrwiennej serca na parametry uśrednionego sygnału przedsionkowego.