Abstract
Introduction: The role of surgery and adjuvance with chemo and radio therapy influence the survival and local control of soft tissue sarcomas, so the aim of the present study was to describe the statistical association in a group of patients with sarcomas of soft tissues taking into account the tumor size and the presence of free edges.
Methods: The present retrospective study was carried out from January 2008 to December 2016 at the SOLCA-Guayaquil hospital, including all cases of soft tissue sarcoma. The variables were histopathological diagnosis, tumor size, surgical margins, previous manipulation, survival and the presence of local and / or distant recurrence.
Results: There were 156 cases, 84 men (54 %), 41 to 60 years 49 cases (31%). Liposarcoma 40 cases (25.6 %), Leimiosarcoma 25 cases (16 %), pleomophic sarcoma 19 cases (12.2 %). Located in the lower limb 70 cases (44.9 %). The size of the sarcoma from 9.1 to 16 cm had an Odds Ratio of 3.18 (IC95 1.26 to 7.98) P = 0.01. Survival was equal between patients with and without free edges MantelCox P = 0.26. Adjuvance in patients without metastasis was 51 cases (53.1 %) and in patients with metastasis was 48 (80 %) P <0.001. Adjuvance in patients without recurrence was 47 cases (54.7 %), in patients with recurrence 52 cases (74.3 %) P = 0.013. The manipulation in the group without recurrence was 9 cases (10.5 %), in the group with recurrence 20 cases (28.6 %) P = 0.006.
Conclusion: In the present study the factors that negatively influence the local and systemic control of sarcomas were: tumors of size from 9.1 to 16 cm, Adjuvant treatment with Chemotherapy or Radiotherapy and previous manipulation.