ACS anatomical correlation

ECG Leads Location Coronary Artery Complications
LAD Anteroseptal. V1-V3 Left ventricular dysfunction:

-Decreased CO2

-CHF, LBBB, RBBB

-Left PFB

-Infranodal block (2 ̊or 3 ̊)

V2-V4 Anterior LAD
I, aVL, V4-6 Lateral LCA Left ventricular dysfunction:

-Decreased CO2

-CHF, Infranodal block (2 ̊or 3 ̊)

II, III, aVF Inferior RCA -Hypotension (NTG/morphine)                     -Supranodal 1 ̊ HB

-A-fib/flutter

-PACs

Infranodal block (2 ̊and 3 ̊)

-Papillary muscle rupture (murmur)

V4R (also II, III, aVF) Right ventricular RCA
R waves in V1, V2 (also V7-9) Posterior RCA (90%), LCA (10%)
avR (STE) Anterolateral Left Main

See Also