Palpitations

• Cardiac (43%)
  • Intermittent: PACs/PVCs
  • Regular, Sustained: SVTs, VTs, MVPs, AR, Atrial Myxoma, Myocarditis, PE
  • Irregular, Sustained: Atrial Fibrillation
• Psychiatric (31%)
  • Panic attacks, anxiety, somatization
    • Longer duration (>15mins)
• Miscellaneous (10%)
  • Thyrotoxicosis, Drugs, Ethanol, Chest wall contractions, pheochromocytoma, systemic mastocytosis
• Unknown (16%)