basics of cardiac electrophysiology study - the …epsegypt.com/upload/21032013/005002.pdf ·...
TRANSCRIPT
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Basics of Cardiac
Electrophysiology Study
Amir AbdelWahab, MD
Electrophysiology and Pacing Service
Cardiology Department
Cairo University
Feb 2013
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Impulse Formation in SA Node
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Atrial Depolarization
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Delay at AV Node
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Conduction through His byndle
and Bundle Branches
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Conduction through Purkinje
Fibers
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Ventricular Depolarization
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Plateau Phase of Repolarization
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Final Rapid (Phase 3)
Repolarization
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Catheter Placement – High Right Atrium (HRA)
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Catheter Placement – His Bundle
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Catheter Placement – Coronary Sinus
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Catheter Placement – Right Ventricular Apex (RVA)
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Catheter Placement – Right Ventricular Outflow Tract (RVOT)
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Basic EP Study
• Basic intervals
• AV node testing – Atrial extrastimulus
– Ventricular extrastimulus
– Incremental atrial pacing
– Incremental ventricular pacing
• Specific pacing manoeuvres, e.g. – Parahisian pacing
– Sinus node testing
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Definitions
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Exercises
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