Hemiblock left limb ECG

 

1- anterior hemiblock:

– Axial deviation (AQRS) left over – 30 ° (or> – 45 °)

– Aspect qR in D1, rS aspect D2 and D3

– Duration of QRS normal or slightly elongated (<0.12 s)

Left anterior hemiblock

Left anterior hemiblock

2- hemiblock post:

– Right axis deviation beyond 110 °

– Aspect rS in D1; qR appearance in D2 and D3

– Normal QRS duration or low lying

Hemiblock left hind

Hemiblock left hind

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