Figure 1

12-lead ECG and ultrasonic cardiogram in the patient. (A) 12-lead ECG in resting time showing sinus arrhythmia; slight hypertrophy (RV5/SV1 = 1.51/0.00 mV) evident in the right ventricular. (B–I) Ultrasonic cardiogram of the patient. The red arrow indicates the site of an atrial septal defect in the left and right pulmonary arteries.