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arrhythmia

SVT

SVT: types

  • Atrial:
    • Sinus tachy
    • Sinus nodal reentrant tachy
    • Atrial tachy
    • Multifocal atrial tachy
    • Atrial flutter
    • AF=Atrial fibrillation
  • AV tachy
    • AVNRT=AV nodal reentrant tachy
    • AVRT=AV reentrant tachy

SVT: treatment

  • vagal maneouvres
  • Adenosine
    • 6mg rapid IV + saline flush; +- 12mg: converts >90% of PSVT
    • BNF: 3mg IV over 2s; +- 6mg IV after 1-2min, +- 12mg after 1-2min
  • Verapamil
    • 2.5-5mg IV over 2-3min; +- rpt in 5-10min; 240-480mg SR od PO to prevent recurrence
    • BNF: 5-10mg IV over 2-3min; +- rpt 5mg after 5-10min
  • Diltiazem
    • 0.25mg/kg IV bolus (eg 20mg) over 2min: converts 75-100% of PSVT
  • Metoprolol
    • BNF: <=5mg IV at 1-2mg/min IV, +- rpt after 5min, total dose 10-15mg
  • Esmolol
  • Propranolol
    • 0.5-1mg IV
    • BNF: 1mg IV over 1min, +- rpt q2min (max 10mg) 

AF

 

Atrial Fibrillation

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