Interpretation of ECG in Coronary Artery

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Presentation Transcript

Interpretation of ECG in Coronary Artery Disease : 

Interpretation of ECG in Coronary Artery Disease Dr. S. Aswini Kumar. MD Professor of Medicine Medical College Hospital Thiruvananthapuram

Studying the ECG : 

Studying the ECG

ECG Reading Basic Steps : 

ECG Reading Basic Steps

Standardization & Heart rate : 

Standardization & Heart rate

Rhythm and Axis : 

Rhythm and Axis

Recognizing waves & intervals : 

Recognizing waves & intervals

P wave and PR Interval : 

P wave and PR Interval

Step 7. is looking for a ‘q wave’? : 

Step 7. is looking for a ‘q wave’? P QRS P P No Q Q QRS T T P

What is an insignificant ‘Q wave’? : 

What is an insignificant ‘Q wave’? Small q

In which leads small ‘q’ are seen? : 

In which leads small ‘q’ are seen? Lead III Lead II Lead V5 Lead V6

Non-significant and Significant ‘Q’ : 

Non-significant and Significant ‘Q’

Significant Q wave : 

Significant Q wave P Q P Q >0.04mm

Why is Q very important? : 

Why is Q very important?

What is the mechanism of ‘Q’? : 

What is the mechanism of ‘Q’?

Step 8. Finding out QRS duration : 

Step 8. Finding out QRS duration

Step 9. ST segment : 

Step 9. ST segment ST segment

What is ST segment elevation? : 

What is ST segment elevation? ST segment elevation ST segment

What is J point? : 

What is J point? J point elevation J Point

Significance of ST elevation : 

Significance of ST elevation

DD of ST elevation : 

DD of ST elevation

Early Repolarization : 

Early Repolarization

Whether there is ST depression? : 

Whether there is ST depression? Normal ST segment ST segment Depression

What is ST depression due to? : 

What is ST depression due to?

Types of ST depression? : 

Types of ST depression? Down sloping ST segment depression Horizontal ST segment depression

Step 10. T wave : 

Step 10. T wave Normal T wave

What is tall peaked T wave? : 

What is tall peaked T wave? Tall peaked T wave Normal T wave

Significance of peaked T : 

Significance of peaked T

What is T wave inversion? : 

What is T wave inversion? Symmetrical T Inversion Biphasic T wave

Step 11. R/S in V1 : 

Step 11. R/S in V1 Lead V1 Lead V1

Step 12. S in V1+ R in V6 : 

Step 12. S in V1+ R in V6 Lead V1 Lead V6

RVH and LVH : 

RVH and LVH V1 V6 V1

Changes in Acute MI : 

Changes in Acute MI

Walls of Infarction : 

Walls of Infarction

Walls of Infarction : 

Walls of Infarction

Summary : 

Summary

Slide 36: 

Thank you for the kind attention