For EP beginners, remembering the diagnostic criteria for SVTs like AT, ORT via an AP, and AVNRT can be quite tricky😱
There’s a ton of jargon—terms like V-A-V, V-A-A-V, V-V-A responses, orthodromic His capture, total pacing prematurity, A2-H*-V*, and more—plus countless specific values essential for accurate diagnoses💦
Over the years, electrophysiologists have developed various diagnostic maneuvers, yet even the best methods reveal flaws years after their debut. Consequently, others innovate new techniques, propelling continuous evolution and enhancement in the field🔥
EP University explores the global history of SVT diagnostic criteria, detailing their introduction, significance, and concepts in chronological order.
✅Step 1
differentiating AT from ORT and AVNRT
✅Step 2
differentiating ORT from AVNRT
✅Step 3
diagnosis of concealed nodovantricular/nodofascicular or his-ventricular pathway-related tachycardia.
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✅Step 1
Differentiating AT from ORT and AVNRT
AT usually shows up as long RP tach, which needs careful differentiation from ORT via an AP with decremental properties or from fast-slow AVNRT, both of which also display long RP tach due to longer retrograde conduction times over decremental AP/slow pathway (SP) and relatively shorter anterograde conduction times over fast pathway.
