Fig. 1From: Myocardial injury and pericarditis after combined left atrial and coronary sinus ablation in Wolff–Parkinson–White syndrome: a case reportElectrocardiogram showing atrial fibrillation with type A pre-excitation syndrome upon hospital admittance. Delta waves were detected in all leads, and QRS was R-shaped in V1 lead, suggesting left APBack to article page