Biphasic Technology - Cardioversion

Superior for Cardioversion of Atrial Fibrillation

The ZOLL Rectilinear Biphasic™ Waveform (RBW) has been studied in more human patients than any other biphasic waveform. More than 5,800 patients have been studied for atrial fibrillation in 5 separate studies (Figure 1) comparing the ZOLL RBW to the common standard, monophasic damped sine waveforms (MDS), and in 3 studies comparing the ZOLL RBW to Physio Control Biphasic Truncated Exponential waveform (Figure 2). 

AF figure 1AF Figure 2

The results are consistently impressive: the ZOLL RBW demonstrates statistical superiority to the monophasic damped sine waveform at every energy setting, in every study.* In fact, the ZOLL RBW was the only biphasic waveform to demonstrate a statistically significant improvement over MDS while using lower energy levels (Figure 3).

AF Figure 3

In comparisons to the Physio-Control waveform, results were statistically equivalent in all three studies - even when the Physio waveform had the advantage of using their pads with the ZOLL device (Kim study) and delivered 2 additional shocks (al Atawi study).

 

AF Clinically Effective Figure 4
AF Better Outcomes


 Read on to uncover the unique advantages of ZOLL's Rectilinear Biphasic waveform:

 

Principles of Electricity
More Current at 200J than other biphasic waveforms at 360J 
New Control for Patient Impedance
Optimal Duration for Defibrillation Shocks
Superior for Cardioversion of Atrial Fibrillation
Superior for Defibrillation of Ventricular Fibrillation
Superior for Defibrillation of Out-of-Hospital Cardiac Arrest 
Pediatric Biphasic Recommendations
Bibliography

*The data demonstrates the equivalent efficacy of low energy rectilinear biphasic shocks compared to standard high energy monophasic shocks for transthoracic defibrillation for all patients in VT/VF at the 95% confidence level.  The data also demonstrate the superior efficacy of low energy rectilinear biphasic shocks compared to standard high energy monophasic shocks in patients in VT/VF with high transthoracic impedance at the 90% confidence level.