Table 2.

Computer Models of the Male Patient Cases Were Used to Simulate the Electrical Activation of the LV with Intrinsic and RV Pacing

Male QRSd (ms)	Intrinsic Stimulation (Non-LBBB Approximation)		RV Pacing (LBBB Approximation)
	Mean Male CV (m/s)	Female QRSd (ms) (n = 11)	Mean Male CV (m/s)	Female QRSd (ms) (n = 11)
120 ms	0.49	111.0 ± 10.8	0.65	109.1 ± 8.9
130 ms	0.45	120.2 ± 11.7	0.60	118.3 ± 9.7
150 ms	0.39	138.5 ± 13.5	0.52	136.8 ± 11.2

The CV needed to predict the male QRSd of 120, 130, and 150 ms were evaluated in each case. The mean male CV was applied to the female patient cases to predict the equivalent female QRSd values.