Cardiology Facts 6


  • Patients with evidence of infra-Hisian block during EP testing should be considered for permanent pacing
  • Brugada syndrome - pseudo-RBBB pattern in right precordial leads with persistent ST elevation
  • Persistent AFib and bradycardia during exercise - sick sinus syndrome
  • A limitation of the Fick method is necessity of measuring oxygen consumption in a steady state
  • Hypocalcemia causes prolongation of the QT interval
  • 18FDG uptake on cardiac PET differentiates active cardiac sarcoidosis from inactive scar tissue
  • In EBT, coronary calcium score higher than median confers an increased risk of MI and death
  • Anticoagulation is recommended in all patients with AF or atrial flutter and HCM, Rivaroxaban 20 mg daily
  • LBBB, placement of catheter near bundle during EP can induce complete heart block 
  • Syncope with prodrome of weakness and nausea, physical examination, ECG and ETT normal - vasovagal syncope - head-upright tilt-table test