April 20, 2017

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.


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