Published in:
01-01-2018 | Original Scientific Report
Radical Nephrectomy for Primary Retroperitoneal Liposarcoma Near the Kidney has a Beneficial Effect on Disease-Free Survival
Authors:
Jinsoo Rhu, Chan Woo Cho, Kyo Won Lee, Hyojun Park, Jae Berm Park, Yoon-La Choi, Sung Joo Kim
Published in:
World Journal of Surgery
|
Issue 1/2018
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Abstract
Background
The purpose of this study is to analyze the clinical impact of radical nephrectomy on retroperitoneal liposarcoma near the kidney.
Methods
Data of patients who underwent surgery for unilateral primary retroperitoneal liposarcoma near the kidney were retrospectively collected. Patients were divided into four groups according to whether they underwent nephrectomy and combined resection of other organs. Kaplan–Meier survival analysis was used to estimate disease-free survival and overall survival. Multivariable Cox analysis was used to analyze factors related to disease-free survival and overall survival.
Results
Nephrectomy (HR = 0.260, CI = 0.078–0.873, p = 0.029) had a beneficial effect on disease-free survival, while interaction model of nephrectomy*other organ resection (HR = 4.655, CI = 1.767–12.263, p = 0.002) showed poor disease-free survival. Other organ resection was not related to disease-free survival (HR = 1.543, CI = 0.146–16.251, p = 0.718). Operation method (p = 0.007) and FNCLCC grade (p < 0.001; G2, HR = 1.833, CI = 0.684–4.915, p = 0.228; G3, HR = 9.190, CI = 3.351–25.199, p < 0.001) were significant factors for disease-free survival. While combined organ resection without nephrectomy group (HR = 1.604, CI = 0.167–15.370, p = 0.682) and radical nephrectomy with combined organ resection group (HR = 1.309, CI = 0.448–3.825, p = 0.622) did not show significant difference in disease-free survival from the mass excision only group, radical nephrectomy without combined organ resection group (HR = 0.279, CI = 0.078–0.991, p = 0.048) showed superior disease-free survival.
Conclusions
Radical nephrectomy of unilateral primary retroperitoneal liposarcoma near the kidney has a beneficial effect on disease-free survival.