Intermittent Ventricular Noncapture


What is the interpretation?



Image 1 - ECG case


Interpretation: Atrial Fibrillation, ventricular demand pacemaker (likely VVI), intermittent noncapture, adequate sensing.



Image 2 - ECG case marked


The intrinsic rhythm is atrial fibrrillation with ventricular paced beats seen pacing at about 100 bpm with adequate sensing of prior QRS. There are venrtricular paced beats that are not followed by a QRS (3,5,8,10,12,16,17 and 19). Thus, there is intermittent noncapture of the ventricles.

#676

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