ECG

Question 1

LBBB Morphology

Answer 1

Broad S-waves in leads V1 and V2 and broad, frequently nothed, R-wave in V5 and V6

Question 2

RBBB vs ischaemia - ST Changes

Answer 2

In RBBB, T wave inversions and ST segment depression are typically expected in leads V1-V3 (anterior chest leads).

Question 3

Posterior STEMI ECG Changes

Answer 3

1. ST-depression in the anterior leads, which may be deep (over 2 mm) and flat
2. Large and upright anterior T waves

Question 4

AVL ST elevation

Answer 4

ST elevation in lead aVL, especially when accompanied by ST depression in other leads, can indicate a critical Left Main Coronary Artery (LMCA) occlusion,

Question 5

T wave normal variant vs hyperacute/tented

Answer 5

Question 6

Hyperkalaemia ST Changes

Answer 6

V1 V2 ST elevation

Question 7

Brugada Syndrome

Answer 7

Coved ST segment elevation >2mm in >1 of V1-V3 followed by a negative T wave.

Question 8

Answer 8

Wellen’s Syndrome
Deeply inverted or biphasic T waves in leads V2-V3

critical proximal left anterior descending coronary artery stenosis

Question 9

Crochetage Sign

Answer 9

Notch near the apex of the R wave of inferior leads (II, III, aVF) seen in a large proportion of patients with an ostium secundum atrial septal defect (ASD), the most common form of ASD