Basic Electrocardiography II: CAD and Ischemia

Basic Electrocardiography II:

CAD and Ischemia

Matthew McGuiness, MD

Slides adapted with permission from those created by:

Naomi Botkin, MD

.

Learning Objectives

? When present on an ECG*, what does coronary

artery disease look like?

¨C How do you identify acute ischemia, including

STEMI, and prior infarct?

McGuiness/OSD/CV/18-19

Leads are grouped according to the region of the LV

that they ¡°see¡± best. The limb leads are shown.

Lateral leads

Cross section of ventricles

RV

LV

anterior

septal

lateral

inferior

Inferior leads

McGuiness/OSD/CV/18-19

Precordial leads detect septal and anterior activity.

lateral

septal

anterior

inferior

Anteroseptal

or septal

Anterolateral

leads

Anterior leads leads

McGuiness/OSD/CV/18-19

Typical Layout of Leads

Anterior

Lateral

Anteroseptal

or septal

Anterolateral

Inferior

McGuiness/OSD/CV/18-19

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