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Q-T and JT dispersion in the elderly with urban hypothermia (CROSBI ID 98053)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Duraković, Zijad ; Mišigoj-Duraković, Marjeta ; Čorović, Naima Q-T and JT dispersion in the elderly with urban hypothermia // International journal of cardiology, 80 (2001), 2/3; 221-226. doi: 10.1016/S0167-5273(01)00498-3

Podaci o odgovornosti

Duraković, Zijad ; Mišigoj-Duraković, Marjeta ; Čorović, Naima

engleski

Q-T and JT dispersion in the elderly with urban hypothermia

Twenty elderly patients: 12 females and 8 males, aged 65-84 years, were treated because of hypothermia:11 suffered from moderate (35- 32oC) and nine from severe hypothermia (<32oC). The control group consisted of 20 age and sex- matched healthy elderly persons. Twelve-channel electrocardiograms were recorded on admission and during hospitalization. In patients with moderate hypothermia Osborn wave was present in 8/11 ; in severe hypothermia Osborn wave was seen in 7/9, and minimal in 2/9. The corrected Q-T interval (Q-Tc) was analyzed according to the formula of Bazett: measured Q-T(s) divided by the second root of the R-R interval. The JT and the corrected JT interval (JTc) were measured according to the formula: JT= QT - QRS. The Q-T interval index (QTI) was measured according to the formula: (Q-T:656) x (HR+100) ; and the JT interval index (JTI): (JT:518) x (HR+100). The dispersion of the Q-Tc (JTc) was defined as the difference between maximum and minimum measured Q-Tc interval (JTc). The Q-Tc interval in the group with hypothermia was 651.41 +/- 130.06 ms, while in the control group it was 398.14 +/- 76.21 ms. (p<0.001). The Q-Tc dispersion in the group with hypothermia was 91.39 +/- 51.98, and in the control group 33.21 +/- 10.25 ms (p<0.001). The Q-TcI in the group with hypothermia was 89.91 +/- 21.44, and in the control group 39.56 +/- 9.41 ms (p<0.001). The JTc in the group with hypothermia was 542.66 +/- 132.74, in the control group 328.06 +/- 76.92 (p<0.001). The JTc dispersion in the group with hypothermia was 79.35 +/- 46.22, and in the control group 28.53 +/- 7.99 ms (p<0.0001). The JTcI in the group with hypothermia was 93.06 +/- 17.38, in the control group it was 40.23 +/- 7.59 (p<0.001). The mean values of the Q-TcI were greater than Q-TI, and the mean values of the JTcI were greater than JTI, but the difference was not significant (p >0.10). The mean values of the JTcI were greater than Q-TcI, but the difference was not significant as well (p>0.05). There was no correlation between rectal temperature and dispersion of Q-T, Q-Tc, JT, JTc, and Osborn wave. The maximum Osborn wave and the maximum Q-T interval were registered in anteroseptal leads (V2-V3). The dispersion of the Q-Tc and of the JTc lasted more than Osborn wave. There was no correlation between rectal temperature and PR interval, RR interval and QRS duration. The prolonged dispersion of the Q-Tc (and JTc) last 24-48 h longer than Osborn wave.

Urban hypothermia ; The elderly ; ECG ; Q-T ; JT ; Dispersion ; Osborn wave

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

80 (2/3)

2001.

221-226

objavljeno

0167-5273

1874-1754

10.1016/S0167-5273(01)00498-3

Povezanost rada

Javno zdravstvo i zdravstvena zaštita, Kineziologija, Kliničke medicinske znanosti

Poveznice
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