Long-Term Outcome After Surgery for a Localized Retroperitoneal Soft Tissue Sarcoma in Elderly Patients: Results from a Retrospective, Single-Center Study

I. Sourrouille, R. Macovei, M. Faron, C. Le Péchoux, O. Mir, J. Adam, S. Dumont, P. Terrier, A. Le Cesne, C. Honoré

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    Abstract

    Background: To evaluate short- and long-term results after curative surgery for a retroperitoneal sarcoma (RPS) in elderly patients. Methods: We retrospectively analyzed data of all patients operated in our single, tertiary care center for a nonmetastatic RPS and identified patients aged 70 years and older. Results: Among 296 patients with an RPS treated between 1994 and 2015, 60 (20%) were aged 70 years and older (median age 74 years; range 70–85). The median tumor size was 24 cm (range 6–46). Forty-six patients (77%) had mass-related symptoms at the time of diagnosis. The most frequent histological subtypes were de-differentiated liposarcoma (53%, n = 32) and well-differentiated liposarcoma (35%, n = 21). Twenty-two patients (37%) had perioperative radiotherapy and/or chemotherapy. Fifty-eight patients (97%) had macroscopically complete resection. The postoperative mortality was 8% and severe morbidity (Dindo/Clavien ≥ 3) was 32%. A reoperation was required for ten patients (17%). After a median follow-up of 20 months (range 1–121), the 5-year overall survival (OS) rate was 90% (95% confidence interval [CI] 79–100%), and median OS was not reached. The cancer-specific death rate was 88%. No prognostic factor for disease-specific survival was detected. The 5-year disease-free survival (DFS) rate was 52% (95% CI 33–84%) and 5-year locoregional recurrence-free survival rate was 52% (95% CI 33–84%). Median DFS was 94 months (95% CI 35–NA). Reoperation after inappropriate surgery and postoperative morbidity were independent predictive factors of locoregional relapse. No predictive factors of distant metastasis were found. Conclusions: Curative surgery is feasible in selected elderly patients but with higher mortality and morbidity rates than in younger patients. It enables a prolonged survival. Future studies should focus on selection process to minimize postoperative mortality and morbidity.

    Original languageEnglish
    Pages (from-to)2201-2208
    Number of pages8
    JournalAnnals of Surgical Oncology
    Volume25
    Issue number8
    DOIs
    Publication statusPublished - 1 Aug 2018

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