SVT Case Study – #4

A 45-year-old female presents to the EP lab with complaints of palpitations and the following 12 lead ECG that was recorded in the emergency room 2 weeks prior. 12 Lead ECG:  A 69-year-old male came into the EP lab for an SVT study. The following ECG was recorded,...

Atypical AFL Map Interpretation

Anatomy Identification   What structures are you able to identify in the following images?  What views are displayed?        Answer:   Lets work on interpretation.   The CS electrogram is displayed below. What is observed?    ...

3D Map Interpretation – 8

Identify the the views, anatomy, map type, and interpretation. Answer Right Superior Pulmonary Vein Tachycardia This activation map is of a focal tachycardia originating from the right superior pulmonary artery. When the impulse exits the vein, the rest of the atrium...

3D Map Interpretation – 7

Identify the the views, anatomy, map type, interpretation, and ablation target.       Answer Right Atrial Scar Flutter   This is a right atrial flutter; however, it is not typical isthmus dependent. This reentrant circuit travels through a channel in-between two...

3D Map Interpretation – 6

Let’s combine looking at 3D images along with the corresponding electrograms to determine entrance block.     This 3D geometry was created for a pulmonary vein isolation procedure for atrial fibrillation. We are viewing the posterior wall of the left atrium. The...

3D Map Interpretation – 5

Identify the view and anatomy in this Acutus image of the LA.      Answer This is a PA view of the left atrium. We are observing the posterior wall and pulmonary veins, the left atrial appendage is also able to be seen.   Propagation Map: In this same...