Figure legend
Fig 1 . Three ports. The first port (2.5–3 cm) was positioned in the fourth intercostal space outside the right midclavicular line. The second port (1–1.5 cm) was placed in the fourth intercostal space anterior axillary line. The third port (1.0–2.0 cm) was located in the fifth intercostal space between the mid-axillary line and anterior axillary line. A tissue retractor was insert into the port immediately if each port was made.
Fig 2 . (A) Detachment of septal leaflet of tricuspid valve to expose the VSD. The septal tricuspid valve was partially detached by a circumferential parallel incision 2 mm away from the annulus, and the septal leaflet was suspended by 5-0 Prolene. (B) Ventricular septal defect repair using a bovine patch.