Download - Coronary Arteries & 12-Leads
![Page 1: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/1.jpg)
In Relationship to 12-Lead Electrocardiograms
![Page 2: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/2.jpg)
Aorta
Right CoronaryArtery
Left MainArtery
LeftAnteriorDescending
CircumflexArtery
Copyright 2005Lippincott Williams &Wilkins
![Page 3: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/3.jpg)
![Page 4: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/4.jpg)
![Page 5: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/5.jpg)
ST segment represents the end of ventricular conduction or depolarization and the beginning of ventricular recovery or repolarization.The point that marks the end of the QRS complex and the beginning of the ST segment is called the “J Point.”
A normal ST segment has these characteristics:
Location: extends from the S wave to the beginning of the T wave.Deflection: usually isoelectric
STsegment
J Point
![Page 6: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/6.jpg)
• Impaired Circulation: ischemia, injury or infarction?
• Ischemia: ST depression and T-wave inversion
• Injury: ST elevation
• Infarction: ST elevation
• Q-wave: Indicates a previous infarction
![Page 7: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/7.jpg)
Copyright 2001 American Heart Association
![Page 8: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/8.jpg)
Copyright 2001 American Heart Association
![Page 9: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/9.jpg)
ST Elevation in Septal Leads V1 & V2
![Page 10: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/10.jpg)
Copyright 2001 American Heart Association
![Page 11: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/11.jpg)
ST elevation in Anterior Leads V3 & V4
![Page 12: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/12.jpg)
Copyright 2001 American Heart Association
![Page 13: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/13.jpg)
Copyright 2001 American Heart Association
![Page 14: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/14.jpg)
ST elevation in Inferior Leads II, III & aVF
![Page 15: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/15.jpg)
Copyright 2001 American Heart Association
![Page 16: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/16.jpg)
Copyright 2001 American Heart Association
![Page 17: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/17.jpg)
Copyright 2001 American Heart Association
![Page 18: Coronary Arteries & 12-Leads](https://reader035.vdocuments.site/reader035/viewer/2022062707/5585410dd8b42a4f788b4bd7/html5/thumbnails/18.jpg)
I Lateral
CircumflexArtery
aVR V1 Septal
Left AnteriorDescendingArtery
V4 Anterior
RightCoronaryArtery
II Inferior
Right CoronaryArtery
aVL Lateral
CircumflexArtery
V2 Septal
Left AnteriorDescendingArtery
V5 Lateral
CircumflexArtery
III Inferior
Right CoronaryArtery
AVF Inferior
RightCoronaryArtery
V3 Anterior
Right CoronaryArtery
V6 Lateral
CircumflexArtery
Copyright 2001 American Heart Association