Objective: Laparoscopic hepatectomy in the posterosuperior hepatic region is technically challenging and demanding. However, minimally invasive procedures carried out using the Da Vinci robot provide potential advantages in complex hepatectomy. This study reported the experience of a single center on robotic hepatectomy in the posterosuperior hepatic region.
Methods: This retrospective study evaluated the general characteristics and perioperative outcomes of consecutive patients who underwent robotic hepatectomy in the posterosuperior hepatic region at our center from March 2015 to January 2020.
Results: For 100 patients who were included into this study, 53 underwent anatomical segmentectomy or subsegmentectomy and 47 non-anatomical partial hepatectomy. There was no conversion to laparotomy. The R0 resection rate was 100%. The following perioperative outcomes were compared between patients who underwent anatomical segmentectomy/subsegmentectomy versus those who underwent non-anatomical partial hepatectomy: operation times of 160 versus 126 min, intraoperative blood losses of 100 versus 50 ml, intraoperative blood transfusion rates of 7.54% versus 4.26%, postoperative lengths of hospital stay of 5 versus 4 days, Clavien-Dindo Grade I-II complications rates of 15.09% versus 19.15%, Grade III-V complications rates of 3.77% versus 0%, bile leakage rates of 4% versus 7% and pleural effusion rates of also 4% versus 7%, respectively.
Conclusion: The results indicated the safety and feasibility of robotic anatomical and non-anatomical liver resections in the posterosuperior hepatic region. The robotic transabdominal approach is an option for hepatectomy in the posterosuperior hepatic region.
Keywords: Hepatectomy; Posterosuperior segments; Robotic surgery; Segmentectomy; Subsegmentectomy.