II. Causes

  1. Usually idiopathic and benign
  2. Catecholamine excess
  3. Hypoxia
  4. Myocardial Ischemia
  5. Congestive Heart Failure
  6. Acid-base disturbance
  7. Electrolyte abnormality

III. Signs: EKG Findings

  1. No compensatory pause
  2. P Wave included in Extrasystole
  3. Associated with right bundle branch
  4. Normal narrow QRS with normal axis

IV. Precautions

  1. Supraventricular Premature Complexes (SVPCs) are associated with risk of Atrial Fibrillation and cardiac events
    1. Murakoshi (2015) Eur Heart J. 2015 Jan 14;36(3):170-8 +PMID:25358506 [PubMed]

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