Hyperkalemia causes peaked T waves initially, then an intraventricular conduction delay with a widened QRS complex, then bradycardia. Eventually a “sine wave” pattern ensues. Hyperacute T ...
Recurrent cases were identified by routine electrocardiogram (ECG) that was obtained twice a day or by ECG that was obtained in case of bradycardia ... a blocked P and wide QRS 2:1 AV block ...
In the remaining studies, widened QRS complexes were most commonly attributed ... atrial fibrillation and sinus bradycardia). Including studies on neonates, only one study investigating rhythm ...
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