ECG showing junctional tachycardia. Narrow complex QRS. No P waves. Heart rate fast.
Treatment
Amiodarone to control the rhythm, electrical cardioversion is not used.
Junctional tachycardia is a form of supraventricular tachycardia characterized by involvement of the AV node.[1] It can be contrasted to atrial tachycardia. It is a tachycardia associated with the generation of impulses in a focus in the region of the atrioventricular node due to an A-V disassociation.[2] In general, the AV junction's intrinsic rate is 40-60 bpm so an accelerated junctional rhythm is from 60-100bpm and then becomes junctional tachycardia at a rate of >100 bpm.
Junctional tachycardia (rate about 115/min) dissociated from a slightly slower sinus tachycardia (rate about 107/min) producing one form of double tachycardia; pairs of ventricular capture (C) beats (5th, 6th, 19th, and 20th beats); see laddergram.
^"junctional tachycardia" at Dorland's Medical Dictionary
the AV junction's intrinsic rate is 40-60 bpm so an accelerated junctional rhythm is from 60-100bpm and then becomes junctionaltachycardia at a rate...
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arrest with or without junctional escape, sinoatrial block, prolonged asystolic period followed by tachycardias, or tachycardia-bradycardia syndrome presenting...
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paroxysmal atrial tachycardia, paroxysmal junctionaltachycardia, auricular tachycardia and nodal tachycardia. Another feature of statistical classifications...
the QRS complex. An AV-junctional escape beat is a delayed heartbeat originating from an ectopic focus somewhere in the AV junction. It occurs when the rate...
to poor skin contact of the electrode Physiologic J-junctional depression with sinus tachycardia Hyperventilation Other, non-ischemic, causes include:...
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usually non-life-threatening, but chronic occurrence can progress into tachycardia, bradycardia or ventricular fibrillation. In a normal heart beat rhythm...
Lown–Ganong–Levine syndrome, and also junctional arrhythmia like atrioventricular reentrant tachycardia or junctional rhythm. A variable PR interval may...
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