ECG Library

Welcome to the ECG Library at St. Emlyn’s. Please use the following links to see example ECGs on common problems in emergency medicine and critical care. We are indebted to Dr Michael Colquhoun, a retired doctor from the South West of England who collated and described a range of typical ECGs that cover the major pathologies that we see. He has very kindly agreed to allow us to publish these on the St Emlyn’s website in order to provide a learning library for current and future generations of clinicians. As some time has passed from the original edition we have changed some of the stories and investigations to reflect modern practice. We will add to his original collection as cases and time allow.

Dr Michael Colquhoun has now left clinical practice behind, and now runs his own website specialising in wildlife and bird photography. You can check his website here.

Section A. Ischaemic Heart Disease

1. Recent Myocardial Infarction
2. Recent Anterolateral Myocardial Infarction
3. Old Inferior Infarction With Lateral ST/T Wave Changes
4. Old Inferior Infarction
5. Posterior/Inferior Myocardial Infarction
6. Extensive Anterolateral Infarction
7. Acute Inferior Infarction
8. Extensive Anterolateral Infarction
9. Anterior Infarction with Lateral Ischaemia
10. Recent Anterior Infarction with old Inferior Infarction
11. Recent Anterior Infarction
12. Old Anteroseptal Infarction
13. Posterior/Lateral Infarction
14. Acute Anterolateral Ischaemia
15. Pericarditis
16. Subendocardial Infarction
17. Infero-posterior infarction
18. Right ventricular infarct
19. Anterior infarction with proximal LAD lesion

Section B Disturbances of Cardiac Rhythm & Conduction

1. Sinus Bradycardia
2. Sinus Arrythmia
3. Sino Atrial Block
4. First Degree AV Block
5. Second degree AV block Mobitz type 1, Wenkebach.
6. Second degree 2:1 AV block
7. Third degree block with narrow complex escape rhythm
8. Third degree block with inferior myocardial infarction
9. Third degree block with broad complex escape rhythm
10. Complete heart block with Atrial Flutter
11. Junctional Rhythm
12. Junctional Rhythm with Right Bundle Branch Block
13. Atrial Flutter
14. Atrial Fibrillation 1
15. Atrial Fibrillation 2
16. Atrial Fibrilallation 3 – Paroxysmal Atrial Fibrillation
17. Atrial Fibrillation 4
18. Atrial Fibrillation with Fast Ventricular Rate
19. Atrial Fibrillation with Left Bundle Branch Block
20. Cardiac Asystole
21. Ventricular Premature Beats
22. Ventricular Ectopic Beats following Myocardial Infarction
23. Right Bundle Branch Block (RBBB)
24. Right Bundle Branch Block with Wenkebach Phenomenon in AMI
25. Trifascicular Block
26. Left Bundle Branch Block (LBBB)
27. Wolf Parkinson White (WPW) Type B
28. Wolf Parkinson White (WPW) Type A
29. Wolf Parkinson White with Inferior Q waves
30. AV Nodal Re-Entrant Tachycardia
31. Atrioventricular Re-Entrant Tachycardia
32. Atrial Tachycardia with 2:1 Block and Aberrant Conduction
33. Junctional Tachycardia
34. Supraventricular Tachycardia conducted with LBBB
35. Supraventricular Tachycardia conducted with RBBB
36. Atrial Fibrillation with RBBB and Left Anterior Hemiblock
37. Ventricular Tachycardia
38. Ventricular Tachycardia with AV dissociation
39. Ventricular Fibrillation

Section C. The ECG in the diagnosis of Cardiac Chamber Hypertrophy.

1. Left Ventricular Hypertrophy
2. Right Ventricular Hypertrophy with Ventricular Septal Defect
3. Left Ventricular Hypertrophy in Aortic Valve Disease 1
4. Left Ventricular Hypertrophy and Old Myocardial Infarction
5. Left Ventricular Hypertrophy in Aortic Valve Disease 2
6. Right Ventricular Hypertrophy in Pulmonary Hypertension
7. Right Ventricular due to Pulmonary Disease

A note on case presentations on St. Emlyn’s