Table 4.
Comparison of HBP and LBBAP QRS duration and parameters of myocardial work as relative differences between paced and spontaneous ventricular activation. Data expressed as median (interquartile range).
| HBP (12 Patients) |
LBBAP (12 Patients) |
p-Value | |
|---|---|---|---|
| dQRS (%) | 0 (−7.5–+42.8) | +16.4 (−4.9–+32.0) | 0.54 |
| dGWI (%) | +0.1 (−18.4–+36.4) | −6.3 (−22.6–+24.4) | 0.67 |
| dGCW (%) | 12.3 (−2.8–+16.2) | −0.9 (−10.2–+6.2) | 0.25 |
| dGWW (%) | +66.4 (+8.4–+91.7) | +113.3 (−5.3–+218.2) | 0.53 |
| dGWE (%) | −2.4 (−16.7–+1.1) | −5.3 (−9.7–+1.1) | 0.77 |
dQRS: relative difference in QRS [(QRSpaced − QRSspontaneus) × 100/QRSspontaneus]; dGWI: relative difference in global work index [(GWIpaced − GWIspontaneus) × 100/GWIspontaneus]; GCW: global constructive work [(GCWpaced − GCWspontaneus) × 100/GCWspontaneus]; GWW: global wasted work [(GWWpaced − GWWspontaneus) × 100/GWWspontaneus]; GWE global work efficiency [(GWEpaced − GWEspontaneus) × 100/GWEspontaneus].