ArticleCurrent oncology (Toronto, Ont.)2025
Preoperative Chemoradiation (Modified Eilber Protocol) Versus Preoperative/Postoperative Radiotherapy for Soft Tissue Sarcomas: A Population-Based Analysis.
Article in Current oncology (Toronto, Ont.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundLocal recurrence for high-risk extremities/trunk soft tissue sarcoma (STS) after treatment can range from 15 to 30%. The modified Eilber protocol (MEP) using low-dose intravenous chemotherapy with a reduced dosage of radiation in the preoperative setting has demonstrated excellent local control and reduced wound complications in these patients. The aim of the current study was to assess long-term local control and overall survival in patients with STS treated with the MEP versus standard preoperative or postoperative radiotherapy.
methodsPatients diagnosed with STS from 2004 to 2016 were identified using the Alberta Cancer Registry. Patients with STS treated with the MEP, preoperative or postoperative radiotherapy, were included. Patient and tumor characteristics, treatments and outcomes were abstracted from the registry and primary chart review. Characteristics were compared using one-way ANOVA for continuous variable and chi-square test and Fisher test for the categorical outcomes. Local recurrence-free survival and overall survival were analyzed using Kaplan-Meier Analysis with Log-rank test.
resultsA total of 242 patients with STS were included, among which 100 (41.3%) received the MEP prior to surgery, 91 (37.6%) had preoperative radiation, and 51 (21.1%) had postoperative radiation. After a median follow up of 4.9 years, there were no significant differences in local recurrence or local recurrence-free survival between patients treated with the MEP vs. preoperative or postoperative radiotherapy (10 vs. 6.6% and 7.8%, respectively,
conclusionsThis study demonstrates that the use of the MEP has non-inferior oncologic outcomes compared to standard preoperative or postoperative radiation in a population-based analysis despite reducing the overall dosage of radiation administered. The modified Eilber preoperative chemoradiation protocol may be considered as an additional option for patients with STS.
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