Fig. 1From: Non-cardiac surgery in congenital heart disease-associated pulmonary arterial hypertension: risk recognition and management12-lead ECG showing atrial fibrillation at a rate of 90 beats per minute. There is a mean QRS axis of 60o, a right bundle branch block pattern, and a lack of R-wave progression in the chest leads, in keeping with right ventricular ‘dominance’. Widespread ST-T wave changesBack to article page