To compare the clinical outcomes between da Vinci robotic surgery and open surgery for primary retroperitoneal tumor.

This retrospective study recruited clinical data of 57 patients with primary retroperitoneal tumor who underwent surgery in Affiliated Hospital of Qingdao University from Mar.2015 and Jun. 2018, 26 cases performed da Vinci robotic surgery and 31 cases received open surgery.The operative time, blood loss, hospital stay, hospitalization expenses and complication were compared.

The blood loss in the da Vinci surgery were (16.85±16.0) ml, obviously less than that of open surgery (55.8±44.2) ml (t=4.564, P<0.000); and the hospital stay in da Vinci surgery were (3.15±1.7) days, less than that of open surgery (4.61±1.9) days (t=3.027, P=0.004), but the hospitalization expenses in the open surgery were (33 825±8 432) yuan, which were significantly lower than that of da Vinci surgery (53 712±6 424) yuan (t=9.858, P<0.000); the operation time of da Vinci operation was (156.15±62.9) min, and the operation time of open surgery was (144.39±41) min, there was no statistical difference (t=0.818, P=0.418). The incidence of complications rate in the two groups were 0.08% and 0.15%, respectively, and there were no statistical difference (χ²=0.042, P=0.837).

Although the hospitalization expenses are more expensive, da Vinci robot still has some advantages in the treatment of primary retroperitoneal tumor.