A 96-year-old woman develops Chest Pain days after pacemaker implantation. Her ECG shows pacing spikes but no capture. What’s the underlying rhythm?
A 96-year-old woman presented to the emergency department with a 1-day history of pleuritic chest pain 4 days after a single-chamber transvenous pacemaker had been implanted. A chest radiograph and computed tomographic scan of the chest showed the tip of the right ventricular lead in the left pleural space. What rhythm does the electrocardiogram show?
