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Practice Level 5

Case 35: A 66-Year-Old Man in the Emergency Department

History
Diagnosis
History

A 66-year-old man is in the Emergency Department:

Diagnosis
  • Sinus bradycardia with marked sinus arrhythmia – Ventricular rate 56/min
  • Occasional junctional escape complexes
  • Incomplete right bundle branch block (iRBBB) alternating with complete right bundle branch block (rate-related aberrancy)

ECG ID: E528

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