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Electrophysiologic studies (=EPS)
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- Normal cardiac rhythm
- Normal conduction, refractory, and interval
times
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Three or
four multipolar pacing catheters are inserted
percutaneously.
- Conduction intervals are measured
to locate conduction delays by programmed electrical
stimulation
(PES)
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- To diagnose dysrhythmias
- To identify causes of ectopy
- To determine a person's risk for
lethal ventricular dysrhythmias
- To determine appropriate therapy in patients who have
not obtained the desired effect from usual
therapies
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- Dysrhythmias
- Conduction
abnormalities
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