(FIT)-Module 2 Workshop 3: SVT Mechanisms and Maneuvers-Stevenson Case 6 Answer

Video Transcription

Video Summary

The transcript analyzes a case of supraventricular tachycardia and concludes it's atrial tachycardia, not caused by AV nodal reentry or an accessory pathway. The pacing train does not affect the A to A intervals, indicating AV dissociation. Although VA conduction is absent, suggesting no accessory pathway involvement, the P wave morphology, which is isoelectric rather than negative in inferior leads, also rules out AV nodal reentry. Despite matching some characteristics of AV nodal reentry, the evidence points to atrial tachycardia due to the unchanged P wave morphology during tachycardia.

Keywords

supraventricular tachycardia

atrial tachycardia

AV nodal reentry

accessory pathway

P wave morphology