Makindo Medical Notes"One small step for man, one large step for Makindo" |
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Related Subjects: |ECG Basics |ECG Axis |ECG Analysis |ECG LAD |ECG RAD |ECG Low voltage |ECG Pathological Q waves |ECG ST/T wave changes |ECG LBBB |ECG RBBB |ECG short PR |ECG Heart Block |ECG Asystole and P wave asystole |ECG QRS complex |ECG ST segment |ECG: QT interval |ECG: LVH |ECG RVH |ECG: Bundle branch blocks |ECG Dominant R wave in V1 |ECG Acute Coronary Syndrome |ECG Crib sheets
Site | Vessel occluded | ECG changes |
---|---|---|
Posterior: | Either RCA or Circumflex | Tall R waves and T wave V1-2. ST depression V1-V3 |
Anterior: | LAD | ST elevation V1-V6 |
Inferior: | II, III, avF | Either RCA or Circumflex. May be associated AV block or bradycardia |
Anterolateral | Circumflex / LAD (Diagonal) | |
Anteroseptal | LAD | I, aVL, V1-V4 |
Site | Vessel occluded | ECG changes |
---|---|---|
Posterior: | Either RCA or Circumflex | Tall R waves and T wave V1-2. ST depression V1-V3 |
Anterior: | LAD | ST elevation V1-V6 |
Inferior: | II, III, avF | Either RCA or Circumflex. May be associated AV block or bradycardia |
Anterolateral | Circumflex / LAD (Diagonal) | |
Anteroseptal | LAD | I, aVL, V1-V4 |
Use to help tell
Arterial occlusion | ECG leads affected with ST elevation, T wave inversion, Q waves |
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Left anterior descending | V1-V4 |
Circumflex | V1 - reciprocal e.g. tall R wave instead of Q waves and ST depression rather than elevation (True posterior) |
Right coronary artery | ST elevation, T wave changes, Q waves in II, III, aVF (inferior) |
Distal RCA/Side branch of Cx | Lateral V5/6 changes (lateral) |
Proximal LAD | V1-6, I, aVL anterolateral |
Proximal RCA | II,III,avF, V5,V6 inferolateral |
Proximal RCA/CX | II,III,aVF dominant R wave in V1 (inferoposterior) |
Proximal RCA/CX | II,III,aVF dominant R wave in V1, V5,V6 (inferoposteriolateral) |