Junctional tachycardia other diagnostic studies

A cardiac event monitor may be helpful in patients with transient symptoms or palpitations to exclude other rhythms such as ventricular tachycardia.

• There is normal conduction in the His bundle, and the His-ventricular interval is normal.
• Preceding each QRS, there should be a His bundle depolarization
• AV conduction is variable
• VA conduction is variable

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