V1
S-wave amplitude in V1 · source polarity retained · age-dependent fitted limits
Cardiology.org · ECG reference model
Extreme Percentile ECG Variables
Select sex and enter age to calculate fitted 1st, 2nd percentiles for precordial S-wave amplitudes V1, V2 and V3.
years
Sex
1234 years
microvolts (µV)
V2
S-wave amplitude in V2 · source polarity retained · age-dependent fitted limits
V3
S-wave amplitude in V3 · source polarity retained · age-dependent fitted limits