(FIT)-Module 2 Workshop 3: SVT Mechanisms and Maneuvers-Miller Case 4 Answer

Video Transcription

Video Summary

The video explains that the rhythm being observed is likely orthodromic re-entry with a left-sided accessory pathway. This can be determined by analyzing the VA interval, which remains fixed while the VV interval varies. In an atrial tachycardia, the Vs would follow the As, not the other way around. The presence of a negative P wave in lead I further supports the diagnosis of a left-sided accessory pathway. Overall, the rhythm is characterized by unpredictable fluctuations in the VA interval and a fixed VV interval.

Keywords

orthodromic re-entry

left-sided accessory pathway

VA interval

atrial tachycardia

negative P wave