Legends
Figure 1 The CTV showed double IVC with intrahepatic interruption, azygos and hemiazygos vein continuation, and intrahepatic venous shunt. The hepatic vein was shown to connect the right atrium.
Figure 2 The procedure was performed through 3 ports in the left chest wall.The camera port (10 mm) was introduced in the eighth intercostal space at the subscapular angle line. The first working port (25 mm) was introduced about 30 mm anterior to the subscapular angle line in the sixth intercostal space. The second working port (10 mm) was introduced 30 mm posterior to the subscapular angle line in the seventh intercostal space.
Figure3. The right and left pulmonary vein isolation were achieved by bipolar radiofrequency ablation device.
Figure 4. The linear lesion from the left inferior pulmonary vein to the right superior pulmonary vein by the bipolar radiofrequency ablation clamp. PV, Pulmonary vein; SVC, superior vena cava; IVC, inferior vena cava.