Practice Level 5 Case 32: A 73-Year-Old Man Referred to the EP Clinic History Diagnosis History This 73-year-old man is referred to the EP Clinic because of occasional episodes of tachyarrhythmia: Diagnosis Sinus tachycardiaFrequent premature atrial complexes (PACs)Short runs of atrial tachycardia with aberrant conductionLeft anterior fascicular block ECG ID: E531 Bookmark Please login to bookmark Username or Email Address Password Remember Me No account yet? Register