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Physiology - for VIVAs > Arrhythmia > Flashcards

Arrhythmia Flashcards

1
Q

By what mechanisms can tachyarrhythmias be generated?

A 
Increased automaticity
Accessory pathways (WPW)
Re-entrant loops
Early afterdepolarisations (Torsades de pointes)
Delayed afterdepolarisations (Digoxin toxicity)
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2
Q

What conditions may predispose to increased automaticity?

A

IHD
Electrolyte imbalances
Previous repair of congenital heart disease (scar tissue)
Sympathomimetic agents

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Physiology - for VIVAs (17 decks)

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