EffectivCRT Diagnostic Cardiac Device Features

Overview

A high percentage of BiV pacing is associated with improved CRT response.¹ However, the presence of a pacing stimulus does not imply full capture.^2,3 Traditional pacing counters only report the presence of a pacing stimulus, potentially leading to over-reporting of effective pacing.^2,3

You can now verify effective pacing with the EffectivCRT Diagnostic

The EffectivCRT™ Diagnostic uses a unipolar electrogram to evaluate morphology, looking for a negative deflection which implies when a paced beat is effective.⁴

• This EGM strip shows 6 consecutive paced beats
• Traditional pacing counters would report this as 100% V. pacing
• With the EffectivCRT Diagnostic, it would report 100% V pacing but 50% is effective pacing
  • The first 3 beats are ineffective (positive deflection implies tissue is paced and not captured)
  • The last 3 beats are effective (negative deflection implies tissue is paced and captured)

In 18% of patients, device-reported % V. Pacing overestimated effective CRT by 3%. 3 out of 57 patients had virtually no effective pacing, whereas the % V pacing was > 90%, as demonstrated in the graph below.⁵

• Cardiac Compass™ Trends
• Quick Look™ II Screen
• Rate Histogram Report
• EffectivCRT Episodes