Key result
ECG and intracardiac recordings demonstrated a preexcited sinus beat followed by preexcited and nonpreexcited junctional beats, suggesting a distal shift of the ectopic junctional focus.
Design
Case_report
Authors
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Variable preexcitation in junctional beats may complicate EP mapping; leaves open focus-dependent accessory pathway conduction mechanisms.
Case Report
Demonstrates the electrophysiological phenomenon of discordant junctional beats and preexcitation.
Ali et al. (2015) conducted a case report in Discordant junctional beats and preexcitation. ECG and intracardiac recordings demonstrated a preexcited sinus beat followed by preexcited and nonpreexcited junctional beats, suggesting a distal shift of the ectopic junctional focus.
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