This week’s electrogram interpretation: What is observed in this electrogram with CS pacing? Answer No Capture This example demonstrates pacing at a fixed rate from CS 9,10. Notice how the atrial signal appears before the pacing artifact. With...
This week’s electrogram interpretation: What is observed in the following electrogram? The ablation catheter is positioned in the LIPV during a pulmonary vein isolation procedure. Answer Exit block – AT within the pulmonary vein. ...
This week’s electrogram interpretation: What is observed in the following electrogram? Answer Unable to interpret – repeat extrastimulus testing. In this example, there are two RV catheters displayed. The physician is performing a VT...
This week’s electrogram interpretation: What is observed in the following electrogram? The ablation catheter is located in the CTI. Answer Concealed Entrainment of Right Atrial Flutter The rhythm on the right half of the electrogram is...
This week’s electrogram interpretation: What signal is circled in the following electrogram, recorded after PVI was performed? The PV catheter is in the LSPV and the ablation catheter (ABL) is in the left atrial appendage. Answer Left Atrial Signal...
This week’s electrogram interpretation: After ablation of the CTI, the following maneuver was performed. What is observed? Answer Lateral-to-Medial Block The cavotricuspid isthmus (CTI) if ablated for typical right atrial flutter. After ablation, pacing...
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