In patients with AF and pre-excitation, the presence of an accessory pathway allows for rapid AV conduction, with a risk of degeneration into VT and VF
20 yr old female who presented to the Emergency Department following an episode of chest pain. At review she was pain free and all vital signs were normal. Her serial ECG's are below, there is ~30 mins between each ECG.
35 yr old male who presented to the Emergency Department complaining of palpitations, dyspnoea, and lightheadedness. Describe and interpret this ECG. LITFL Top 100 ECG