Fig. 1From: An abnormal left ventricular-atrial perforation after radiofrequency catheter ablation: a case reporta The echocardiogram showed an abnormal perforation between the left ventricle and atrium with moderate mitral valve regurgitation. (the red arrow). b The CT scan showed there was bronchopneumonia in right lung lobe. (the yellow arrow). c The blue arrow indicated was exactly the perforation in the P2 area of mitral valve annulus, with a diameter of about 6 mm. d The post-operative echocardiography showed the mechanical valve worked well without any perivalvular leakageBack to article page