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Carotid Sinus Syncope

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Carotid Sinus Syncope, Cardioinhibitory Syncope, Carotid Sinus Hypersensitivity

  • Epidemiology
  1. Most often occurs in patients over age 60 years
  • Category
  1. Carotid Sinus Hypersensitivity
  • Symptoms
  • Provocative maneuvers
  1. Head turning
  2. Tight shirt collar
  3. Valsalva Maneuver
  4. Shaving
  • Signs
  1. Electrophysiologic evaluation normal
  2. Carotid Sinus Massage results in one of three findings
    1. Three second sinus pause
      1. Sinus Bradycardia
      2. Atrioventricular Block
    2. Hypotension without Bradycardia
    3. Syncope with normal pulse and Blood Pressure
  • Differential Diagnosis
  • Management
  1. Dual chamber cardiac Pacemaker