CARDIOVERSION AND
DEFIBRILLATION
DR. KANIKA BHARDWAJ
PGY 2
• DEFIBRILLATION- USED IN AN ATTEMPT TO
TERMINATE A NON PERFUSIN RHYTHM- VF OR
PULSELESS VT
• CARDIOVERSION- USED TO TERMINATE A STILL
PERFUSION RHYTHM TO ALLOW A NSR TO
RESTART
DIFFERENCE
• DEFIBRILLATION
1. VF AND PULSELESS V T
• CARDIOVERSION
1. UNSTABLE VT, SUPRAVENTRICULAR
TACHY,ATRIAL FLUTTER, A FIB
2. AFTER FAILED PHARMACOLOGICAL THERAPY
OF ABOVE MENTION ARRYTHMIAS
INDICATIONS
• IF INAPPROPRIATELY GIVEN CAN INDUCE VF
•CARDIOVERSION SHOULD BE SYNCHRONISED
WHICH MEANS THE ELECTRIC CURRENT WILL BE
TIMED WITH PATIENT’S QRS COMPLEX
• SHOCK TO RESCUERS
•BURN
RISKS
• ALWAYS CHECK THE RHYTHM AND PATIENT TO
ASSESS ANY LOOSE LEADS
• MAKE SURE THE RESCUERS ARE NOT IN
CONTACT WHEN SHOCK IS DELIEVERED- FOLLOW
ALL CLEAR METHOD
• SCENE SHOULD BE SAFE AND DRY
• REMOVE ALL DIRECT SOURCES OF O2 TO
PREVENT FIRE
• DIRECT CONTACT WITH SKIN OF PADDLES TO
AVOID BURNS
PRECAUTIONS
DEFIBRILATOR- MANUAL,SEMI AUTOMATED,FULLY
AUTOMATED
PADDLES OR SELF ADHESIVE PADS
CONDUCTIVE GEL
EQUIPMENT
PADDLE/PAD POSITIONING
STEPS
MANUAL DEFIBRILLATION
AED
INTERNAL DEFIB
CARDIOVERSION
• TINTINALLI’S TEXTBOOK OF EMERGENCY
• AHA ACLS PROVIDER MANUAL
REFERENCES
THANK YOU

CARDIOVERSION AND DEFIBRILLATION- approach