ECG Q: 2
A 3-year-old boy with repaired tetralogy of Fallot (RVOT patch + transannular patch) is admitted to the cardiac ICU with worsening fatigue and presyncope. He is postoperative day 5 following pulmonary valve replacement. He suddenly develops a regular wide-complex tachycardia at 220/min, with MAP decreasing to 45 mmHg despite fluid bolus. Near-infrared spectroscopy demonstrates declining … Read more