case_images: PMC11342324_01
case_images: The patient's 12-lead electrocardiograms (ECGs). (A) The patient's admission ECG indicated atrial fibrillation with a rapid ventricular response, intraventricular conduction delay, and secondary ST-T changes. (B) The patient's hospitalization ECG demonstrating borderline left ventricular hypertrophy. There is also increased p-wave amplitude, PR segment prolongation, ST depression, T-wave flattening, prominent U-waves and QT prolongation.
case_images: 10.1177_23247096241274276-fig1.jpg
case_images: PMC11342324_01_10.1177_23247096241274276-fig1.jpg
case_images: fig1-23247096241274276
case_images: An admission 12-lead electrocardiogram showed atrial fibrillation (AF) with occasional premature ventricular contractions at 94 beats per minute (Figure 1A). This patient was immediately initiated with slow intravenous potassium chloride (KCl) repletion along with noninvasive continuous positive airway pressure ventilation, which led to swift resolution of his symptoms and mild improvement in his aberrant electrocardiography (ECG; Figure 1B).