AV junctional tachycardia / Junctional Ectopic Tachycardia (JET)
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Atrial rate
60-100 bpm
Ventricular rate
70-130 bpm
Regularity
regular
Origin
AV node
P-wave
RP > RP
Effect of adenosine
slows down heartrate
Example ECG: Lead II shows competition between the sinus rate and the nodal tachycardia. After around the third beat, some sinus beats are conducted and followed by QRS complexes. Thereafter the nodal tachycardia takes over resulting in a negative p-wave around the 8th beat, the proof of a junctional rhythm.