wide complex tachycardia
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wide complex tachycardiaAbbreviation: WCT
An arrhythmia with a sustained rate of more than 100 bpm in which the surface electrocardiogram reveals QRS complexes lasting at least 120 msec. WCT is usually caused by ventricular tachycardia, although it may occasionally result from a supraventricular tachycardia whose conduction through the ventricles produces an abnormally wide QRS complex.
See also: tachycardia