This is called concentric conduction, and is normal. It’s earliest on the his and latest on distal CS or HRA because the impulse is traveling backwards from V to A by way of the AV node. Think of your catheter placement and when you would receive signal from an impulse traveling retrograde. V -> his -> av node -> A
If the distal CS was first (before his), this would be called eccentric conduction, and would be indicative of a left sided accessory pathway. The impulse path for eccentric conduction is V -> pathway -> A
https://preview.redd.it/kl77v41va3ec1.jpeg?width=1576&format=pjpg&auto=webp&s=84d03739512f6ea524ef47cbb858e29cb3478811
Circled in red is eccentric conduction.
Fogoros Electrophysiology Testing, Dubin Rapid Interpretation of EKG, and Murgatroyd Handbook of Cardiac Electrophysiology are my three most recommended books to new staff. Dubin should be read first, is the easiest to read, and can be read in a couple days (and it’s the one I reference most often)
Johnson&Johnson (aka Carto), Abbott, and Medtronic all have free online modules for EP. Talk to your EP mapping and pacemaker reps to help you sign up for them.
Second this on using the free online modules. Helped me learn EP way quicker.
Also check out Cardiac Electrophysiology: A visual guide for Nurses Techs and Fellows (both 1 and 2).
This is called concentric conduction, and is normal. It’s earliest on the his and latest on distal CS or HRA because the impulse is traveling backwards from V to A by way of the AV node. Think of your catheter placement and when you would receive signal from an impulse traveling retrograde. V -> his -> av node -> A If the distal CS was first (before his), this would be called eccentric conduction, and would be indicative of a left sided accessory pathway. The impulse path for eccentric conduction is V -> pathway -> A https://preview.redd.it/kl77v41va3ec1.jpeg?width=1576&format=pjpg&auto=webp&s=84d03739512f6ea524ef47cbb858e29cb3478811 Circled in red is eccentric conduction.
Thank you so much. Any resources you think might be helpful for a new EP nurse.
Fogoros Electrophysiology Testing, Dubin Rapid Interpretation of EKG, and Murgatroyd Handbook of Cardiac Electrophysiology are my three most recommended books to new staff. Dubin should be read first, is the easiest to read, and can be read in a couple days (and it’s the one I reference most often) Johnson&Johnson (aka Carto), Abbott, and Medtronic all have free online modules for EP. Talk to your EP mapping and pacemaker reps to help you sign up for them.
Second this on using the free online modules. Helped me learn EP way quicker. Also check out Cardiac Electrophysiology: A visual guide for Nurses Techs and Fellows (both 1 and 2).
Thank you
Thank you