Pulmonary hypertension
Fig. 35.2 ECG of right ventricular hypertrophy (RVH). Unremarkable P waves. Normal PR interval. Borderline right axis deviation, QRS axis ≥ 90° (iso-electric R wave aVL, where R = S…
Aortic valve disease and hypertrophic cardiomyopathy
Fig. 32.2 Heart block in aortic stenosis (AS). Elderly female, breathless, severe AS. Three P waves for every QRS complex – two are easily seen, the third is at the…
Mitral valve disease
Fig. 33.2 ECG in a patient with mitral stenosis. Atrial fibrillation, with very coarse fibrillatory waves in lead V1 – these might be mistaken for an atrial tachycardia, but running…
Chronic breathlessness
Fig. 21.2 Left ventricular hypertrophy (LVH). Substantial increase in the voltage of the leads looking at the left ventricle – the R wave in V5 = 33 mm (exceeding that…