EP Practice Lab · Case 9 of 12

Automatic Annotation Changes Component

WorkflowSynthetic educational caseInstant feedback

An annotation algorithm begins selecting a different electrogram component after a morphology change.

old annotationnew annotationSynthetic morphology/annotation shift.
Question

What should happen next?

Practice Lab principle

Describe what you observe first. Then connect the observation to mechanism, troubleshooting, or next-step reasoning. Avoid jumping from one clue to a final diagnosis.

Educational scope: All cases are synthetic and simplified. They are designed for conceptual practice, not clinical decision-making or independent procedural guidance.