Δευτέρα 11 Δεκεμβρίου 2017

Concomitant organ resection does not improve outcomes in primary retroperitoneal well-differentiated liposarcoma: A retrospective cohort study at a major sarcoma center

Background

We investigated whether concomitant organ removal as part of the primary resection of RP WDLPS confers an outcome advantage in patients treated at a major sarcoma center.

Methods

The departmental sarcoma database was reviewed to identify patients with RP WDLPS who underwent initial surgical resection for primary disease at MD Anderson Cancer Center during the study period 1995-2011. We retrospectively reviewed medical records and examined associations between clinicopathologic variables and overall survival (OS) as well as disease-free survival (DFS).

Results

Among 83 patients included in this study, 76 patients (92%) underwent complete resection (R0/R1). Concomitant organ resections were performed in 38 patients (46%). Invasion of the resected organ/s was seen in six patients (7%). Estimated OS was 11.3 years (5-year OS, 86%), and DFS was 5.4 years (5-year DFS, 51%). By multivariate analysis, concomitant organ resection was not associated with improved OS (P = 0.428) or DFS (P = 0.946), and lack of organ resection was associated with a lower risk of postoperative complications (P = 0.01).

Conclusions

Concomitant organ resection was not associated with a survival benefit in RP WDLPS in this study. In patients with primary RP WDLPS, we recommend selective resection of contiguous organs only if there is clinical suspicion of invasion.



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