HALS procedure(Group 2) Patients were placed in a semilateral position with the left side elevated 30˚. The surgeon stood on the patients' right side with the camera operator. First, a hand port incision was made in the upper midline (Figure 2). The incision measured 7-8 cm (depending on the size of the surgeon's glove) in all cases. Then, the hand-assisted device Omniport (Advanced Surgical Concepts, Co. Wicklow, Ireland) was installed.