Tag Sinus arrhythmia

ECG Case 090

70 yr old male who presented following an episode of syncope. Nil significant medical history or medications. Describe and interpret this ECG. LITFL Top 100 ECG

Sinus Arrhythmia

ECG features of sinus arrhythmia. Sinus rhythm with beat-to-beat variation in the P-P interval producing an irregular ventricular rate.