Laparoscopic Liver Resections for Tumors in the Posterosuperior Segments: A Single-center Experience of 174 Consecutive Cases

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Background:Laparoscopic posterosuperior liver resection is a technically difficult and complex surgery. These patients are seen as poor candidates for laparoscopic surgery. This study aimed to show the safe and effective applicability of the posterosuperior segment resections by experienced surgeons in advanced centers.Materials and Methods:Patients who underwent laparoscopic posterosuperior liver resection between October 2011 and October 2019 at the Groeninge Hospital were evaluated retrospectively. Demographic and perioperative data were obtained from the prospectively maintained database. Resection of at least 3 consecutive Couinaud segments was accepted as a major surgery (trisegmentectomy). Postoperative complications were registered according to the Clavien-Dindo classification.Results:The median age of the 174 patients was 68 years [interquartile range (IQR): 60 to 75]. The semiprone position was used in the majority of operations (82.2%). Nonanatomic resection was performed in more than half of the operations (55.1%). A total of 5 patients underwent major hepatic resection. The median time of surgery was 150 (IQR: 120 to 190) minutes. Median blood loss was determined to be 150 (IQR: 50 to 300) mL. Malignancy was detected in 95% of the cases. The surgical margin was reported to be R0 in 93.3% of the specimens. The median hospitalization time was 4 (IQR: 3 to 6) days. The major complication rate was 1.7%, and only 1 patient died. Overall survival rates for patients who underwent a resection for colorectal liver metastases in the first and fifth years were 97.5% and 62.2%, and disease-free survival rates were 69.8% and 35.5%, respectively.Conclusion:Laparoscopic resections in the posterosuperior segments can be performed safely in experienced hands with good short and long term (oncologial) outcomes.

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