Key result
Complete surgical resection predicts better OS in retroperitoneal liposarcoma, while tumor grade predicts PFS.
Why the study?
The clinical characteristics of primary and local recurrent retroperitoneal liposarcoma were compared to determine the related factors involved in postoperative survival.
Do clinical characteristics and surgical factors affect postoperative survival differently in primary versus local recurrent retroperitoneal liposarcoma?
Cohort (n=90)
Do clinical characteristics and surgical factors affect postoperative survival differently in primary versus local recurrent retroperitoneal liposarcoma?
Complete surgical resection is the most critical factor for survival in retroperitoneal liposarcoma, with tumor grade and intraoperative bleeding also serving as important prognostic indicators.
Answers are grounded in this paper and cite their sources.
Recurrent RPLPS shows inferior survival versus primary disease; leaves open whether intensified surveillance or adjunctive therapies improve outcomes in this observational cohort.
BACKGROUND: The clinical characteristics of primary retroperitoneal liposarcoma (PR RPLPS) and local recurrent retroperitoneal liposarcoma (LR RPLPS) cases were compared to determine the related factors involved in postoperative survival. METHODS: A total of 90 patients who underwent surgery between 2006 and 2013 were included in this study. Clinicopathological data that was prospectively gathered was analyzed to identify factors associated with overall survival (OS) and progression-free survival (PFS). RESULTS: The PR cases showed a higher complete resection rate when compared to the LR group. The LR group showed a greater number that were poorly differentiated and highly malignant. More blood loss was observed in the LR compared to the PR group. Multivariate analysis suggested that blood loss and tumor grade were prognostic factors for OS and PFS of the PR group, but extent of resection was a prognostic factor only for OS. In the LR group, the extent of resection was a significant prognostic factor associated with OS, whereas tumor grade was associated with PFS. CONCLUSIONS: Complete surgical resection is the most important factor for the survival of RPLPS patients. Tumor grade is an independent prognostic factor for PFS. In PR RPLPS, poor tumor classification and increased intraoperative bleeding are associated with a poor prognosis.
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Yang et al. (2020) conducted a cohort in Retroperitoneal liposarcoma (n=90). Local recurrent retroperitoneal liposarcoma vs. Primary retroperitoneal liposarcoma was evaluated on Overall survival and progression-free survival. In 90 patients with retroperitoneal liposarcoma, complete surgical resection was the most important factor for overall survival, while tumor grade independently predicted progression-free survival.
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