Postural changes only accounted for a small proportion of change in T-wave morphology. In healthy subjects, noxious arousal causes marked changes in the morphology of the T wave. This may reflect abnormal adaptation of repolarization to sudden changes in heart rate and autonomic tone....
full depolarization (ST segment) and partial repolarization (T wave). Hatched regions are depolarized and the negative sign refers to the external charge. Arrows indicate the direction of advance of the change. Repolarization proceeds in
rate- a magnitude or frequency relative to a time unit; "they traveled at a rate of 55 miles per hour"; "the rate of change was faster than expected" 2.Hertz- German physicist who was the first to produce electromagnetic waves artificially (1857-1894) ...
In this study we evaluated the validity of well-known human electrocardiographic markers of myocardial pathology in Dorper sheep. These markers are all properties of PVC`s, namely the duration of the QRS complex of PVC`s, the presence of notching of the QRS complex of PVC`s and change in ...
A repolarisation phenomenon manifesting as a microvolt beat-to-beat change in the amplitude of the T wave and ST segment on EKGs. T-wave alternans has low specificity as a predictor of arrhythmic risk in unselected populations with prior myocardial infarction. Segen's Medical Dictionary. © ...
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Detection and Attribution of Streamflow Timing Changes to Climate Change in the Western United States This article applies formal detection and attribution techniques to investigate the nature of observed shifts in the timing of streamflow in the western Un... HG Hidalgo,T Das,MD Dettinger,... -...
13.Asbury GR, Hill HH. Using different drift gases to change separation factors (alpha) in ion mobility spectrometry. Anal. Chem. 2000; 72(3): 580-4. 14. Fasciotti M, Sanvido GB, Santos VG, Lalli PM, McCullagh M, de Sá GF, Daroda RJ, Petera MG, Eberlina MN. J Mass Spectr...
Change was measured as decibels and 95% confidence intervals were calculated. The amplitude of T-wave flattened significantly after atropine. It is concluded, that the ECG T-wave amplitude reflects the balance of sympathetic and parasympathetic nervous activity during isoflurane anaesthesia. The use of...