Journal
CANCERS
Volume 14, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/cancers14051273
Keywords
sarcoma; soft tissue sarcoma; relapse; risk factors; prognostic factors; sarcomagenesis; recurrence-free survival
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This systematic review and meta-analysis identified risk factors and prognostic indicators for the development and recurrence of soft tissue sarcomas (STS). Results showed that smoking, genetic predisposition, chronic inflammation, and toxins were associated with the development of STS, while margin of resection, chemotherapy, and radiation were associated with a higher risk of relapse.
Simple Summary The diagnosis and follow-up prognosis of the various number of soft tissue sarcomas (STS) subtypes are still challenging due to low incidence and variable presentation. Therefore, the demand for reliable risk factors developing STS as well as prognostic indicators for recurrence free survival remains high. The objective of this systematic review was to conduct a meta-analysis of mainly retrospective studies to assess the risk factors for development and prognostic indicators for recurrence free survival in STS for the first time. Prognostic factors determining relapse such as radiation, chemotherapy, and margins of resections as well as risk factors including smoking, genetic predisposition, toxins, and chronic inflammation were identified. The diagnosis and prognostic outcome of STS pose a therapeutic challenge in an interdisciplinary setting. The treatment protocols are still discussed controversially. This systematic meta-analysis aimed to determine prognostic factors leading to the development and recurrence of STS. Eligible studies that investigated potential risk factors such as smoking, genetic dispositions, toxins, chronic inflammation as well as prognostic relapse factors including radiation, chemotherapy and margins of resection were identified. Data from 24 studies published between 1993 and 2019 that comprised 6452 patients were pooled. A statistically significant effect developing STS was found in overall studies stating a causality between risk factors and the development of STS (p < 0.01). Although subgroup analysis did not meet statistical significances, it revealed a greater magnitude with smoking (p = 0.23), genetic predisposition (p = 0.13) chronic inflammation, (p = 0.20), and toxins (p = 0.14). Secondly, pooled analyses demonstrated a higher risk of relapse for margin of resection (p = 0.78), chemotherapy (p = 0.20) and radiation (p = 0.16); after 3 years of follow-up. Therefore, we were able to identify risk and relapse prognostic factors for STS, helping to diagnose and treat this low incidental cancer properly.
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