ACS anatomical correlation

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Coronary Artery
Location ECG Leads Complications
LAD Anteroseptal V1-V3

Left ventricular dysfunction:

-Decreased CO2

-CHF
LBBB, RBBB

Left PFB

Infranodal block (2 ̊or 3 ̊)

LAD Anterior V2-V4
LCA Lateral I, aVL, V4-6

Left ventricular dysfunction:

-Decreased CO2

-CHF
Infranodal block (2 ̊or 3 ̊)

RCA Inferior II, III, aVF

Hypotension (NTG/morphine)
Supranodal 1 ̊ HB

Atrial fibrillation/flutter

PACs

Infranodal block (2 ̊and 3 ̊) Papillary muscle rupture (murmur)

RCA Right ventricular V4R (also II, III, aVF)
RCA (90%), LCA (10%)
Posterior

R waves in V1, V2 (also V7-9)

LCMA Anterolateral avR (STE)