The Double U Wave—Should the Electrocardiogram be Interpreted Echocardiographically?

The Double U Wave—Should the Electrocardiogram be Interpreted Echocardiographically?

UNLABELLED The U wave is still an electrocardiographic deflection of enigmatic origin. Numerous hypotheses on its origin have been formulated, but to date none has been conclusively proven. Recently, a report described the first case of bifid (or notched) U waves. Until then this phenomenon has only been described in the T wave. This is the first report of double U waves-two separate deflection...

[The U wave of the electrocardiogram].

THE U wave of the electrocardiogram has received but little attention in clinical electrocardiography because its significance was not clear. However, during the last 15 years an increasing number of reports has appeared in which changes of the U wave were found to be the chief clue leading to the correct clinical diagnosis. The development of intracellular electrography during the last few yea...

The enigmatic sixth wave of the electrocardiogram: the U wave.

The U wave is the last, inconstant, smallest, rounded and upward deflection of the electrocardiogram. Controversial in origin, it is sometimes seen following the T wave with the TU junction along the baseline or fused with it and before P of the following cycle on the TP segment. In this review we will study its temporal location related to monophasic action potential, cardiac cycle and heart s...

Abnormal U waves in the electrocardiogram in subarachnoid haemorrhage.

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