The Use of Epicardial Electrogram as a Simple Guide to Select the Optimal Site of Left Ventricular Pacing in Cardiac Resynchronization Therapy

<table>Correlation between ratio of ED/QRS duration and Δ LVEF (a) and Δ NYHA class (b). Abbreviations: ED: electrical delay, Δ LVEF: change in LVEF from baseline to long-term followup, Δ NYHA: change in NYHA class from baseline to long-term followup.</table>

Cardiology Research and Practice

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Figure 3

Figure 3: The Use of Epicardial Electrogram as a Simple Guide to Select the Optimal Site of Left Ventricular Pacing in Cardiac Resynchronization Therapy 

Figure 3 | The Use of Epicardial Electrogram as a Simple Guide to Select the Optimal Site of Left Ventricular Pacing in Cardiac Resynchronization Therapy 