To evaluate clinical application value of head-mounted naked-eye 3D endoscopic display system in laparoscopic hepatectomy.

Clinical data of 71 patients undergoing laparoscopic hepatectomy in Yuebei People's Hospital from January 2020 to June 2021 were retrospectively analyzed. The informed consents of all patients were obtained and the local ethical committee approval was received. Among them, 40 patients were male and 31 female, aged from 33 to 70 years, with a median age of 54 years. According to intraoperative use of different 3D laparoscopic devices, all patients were divided into the traditional 3D laparoscopic group (traditional group, n=31) and head-mounted naked-eye 3D endoscopic display system group (study group, n=40). Perioperative data of patients and the subjective feeling score of the chief surgeon and the first assistant surgeon in two groups were observed and analyzed.

All patients successfully completed laparoscopic hepatectomy, and there was no conversion to open surgery. The operation time in the study group was (177±59) min, significantly shorter than (207±60) min in the traditional group, and the difference was statistically significant (t=-2.098, P<0.05). In the study group, the subjective feeling scores of degree of immersion, shoulder and neck fatigue, hand-eye coordination and eye fatigue of the chief surgeon and the first assistant surgeon were (4.0±0.4) and (4.2±0.3), (4.0±0.3) and (4.0±0.4), (4.1±0.4) and (4.1±0.4), and (4.0±0.4) and (4.0±0.3), higher than (3.4±0.7) and (3.1±0.3), (3.5±0.4) and (3.7±0.3), (3.2±0.3) and (3.4±0.3), (3.5±0.4) and (3.7±0.3) in the traditional group (t=4.189 and 15.609, 7.335 and 13.812, 10.544 and 8.912, 5.399 and 4.492, all P<0.05). However, no significant differences were observed in image clarity, sharpness, color reproduction, depth positioning, depth resolution, depth movement and dizziness between two groups (all P>0.05).

Head-mounted naked-eye 3D endoscopic display system can provide surgeons with immersive visual experience, relieve visual and neck fatigue, improve hand-eye coordination, shorten operation time, enhance surgical efficiency and maintain surgical safety in laparoscopic hepatectomy.