Dr. G Week 3
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What causes Early Afterdepolarization (EAD) and where does it usually occur?
Reactivation of L-Type Calcium channels and Phase 3
What causes Delayed Afterdepolarization (DAD) and where does it usually occur?
Intracellular Ca2+ overdrive and Phase 4
How are escape beats and rhythms formed?
- SA node becomes suppressed and fires less frequently than normal
- Site of impulse formation often shifts to a latent pacemaker w/in the specialized conduction pathway
- Persistent impairment of the SA node allows a continued series of escape beats and creates the escape rhythm
What is the most common form of AV nodal reentry?
What would you like to do?
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