Preexcitation syndrome: experimental study on the electrocardiogram of antegradely conducting accessory pathway

Table 1 The effect of PS₂ interval, PR interval and its time difference on QRS complex

Model	PR interval ^a(ms)	PS₂ interval^b/time difference between PS₂ interval and PR interval^c (ms)
Model	PR interval ^a(ms)	Complete ventricular preexcitation	Incomplete ventricular preexcitation	Incomplete latent preexcitation	Complete latent preexcitation
1	65	<25 / <-40	30~ 60 / -35~ − 5	65~ 85 / 0~ 20	>90 / >25
2	60	<15 / <-45	20~ 55 / -40~ − 5	60~ 75 / 0~ 15	>80 / >20
3	60	<25 / <-35	30~ 55 / -30~ − 5	60~ 70 / 0~ 10	>75 / >15
4	75	<15 / <-60	20~ 70 / -55~ − 5	75~ 85 / 0~ 10	>90 / >15
5	70	<5 / < -65	10~ 65 /−60~ − 5	70~ 85 / 0~ 15	>90 / >20
6	70	<20 / < -50	25~ 65 /−45~ − 5	70~ 80 / 0~ 10	>85 / >15
7	60	<20 / <-40	25~ 55 /−35~ − 5	60~ 75 / 0~ 15	>80 / >20
8	65	<15 / <-50	20~ 60 /−45~ − 5	65~ 75 / 0~ 10	>80 / >15
9	70	<20 / <-50	25~ 65 /−45~ − 5	70~ 85 / 0~ 15	>90 / >20
10	60	<15 / <-45	20~ 55 /− 40~ − 5	60~ 70 / 0~ 10	>75 / >15

Note:^aindicates the time of conduction through normal pathway. ^bindicates the time of conduction through accessory pathway. ^cindicates the time difference of conduction through accessory pathway and normal pathway

ISSN: 1471-2261