Documents a rare case of spontaneous 1:1 conduction of atrial flutter, which is typically associated with antiarrhythmic drugs or hyperthyroidism.
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Clinicians should consider spontaneous 1:1 flutter conduction in unexplained tachycardia; this case extends the documented spectrum beyond typical triggers.
A 1:1 conduction of atrial tachyarrhythmias, although not uncommon, usually is associated with the use of antiarrhythmic drugs; hyperthyroidism etc. Spontaneous 1:1 conduction of atrial flutter is indeed rare. We present a case of a spontaneous 1:1 conduction of a cavotricuspid isthmus-dependent atrial flutter.
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Murthy et al. (2013) studied this question.
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