Key result
Hypokalaemia can cause bidirectional ventricular tachycardia, a regular tachyarrhythmia with two alternating QRS morphologies at rates typically between 140 and 180 bpm.
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Design
Case_report
Hypokalemia warrants inclusion in bidirectional VT differentials; case reports leave open causality and need for confirmation.
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Santos et al. (2018) studied this question. Hypokalaemia can cause bidirectional ventricular tachycardia, a regular tachyarrhythmia with two alternating QRS morphologies at rates typically between 140 and 180 bpm.
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