Table 2 Summaries of electrocardiogram characteristics of the different origins
Origin | Number | QRS pattern in leads V1 | Transition zone | leads V2 R wave Duration index > 50% and R/S amplitude ratio > 30% | Transition index | QRS pattern in leads I | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
qrS | QS | ≤V3 | >V3 | yes | no | <0 | ≥0 | R、r、m or Rs | rs or qr | ||
RVOT | 26 | 20 | 6 | 10 | 16 | 3 | 23 | 1 | 25 | 16 | 10 |
LVOT | 23 | 17 | 6 | 20a | 3 | 18 | 5 | 22 a | 1 | 19 | 4 |
LCC | 4 | / | 4 | 3 | 1 | 3 | 1 | 4 | / | 1 | 3 |
L-RCC | 16 | 14 | 2 | 15 | 1 | 13 | 3 | 15 | 1 | 15 | 1 |
RCC | 2 | 2 | / | 1 | 1 | 1 | 1 | 2 | / | 2 | / |
ILCC | 1 | 0/1 | / | 1 | / | 1 | / | 1 | / | 1 | / |