4.7 Article

Re-excision After Unplanned Excision of Soft Tissue Sarcoma is Associated with High Morbidity and Limited Pathologic Identification of Residual Disease

Journal

ANNALS OF SURGICAL ONCOLOGY
Volume 30, Issue 1, Pages 480-489

Publisher

SPRINGER
DOI: 10.1245/s10434-022-12359-6

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This study aimed to evaluate the short-term outcomes and morbidity after re-resection of unplanned excision of trunk and extremity soft tissue sarcoma (STS) to better understand the risks and benefits of this treatment strategy. The results showed that the rate of wound complications after re-resection was 45%, and radiation therapy and plastic surgery involvement were independently associated with wound complications. Additionally, 67% of patients had no evidence of residual disease in the re-resection specimen. Therefore, treatment plans and discussions with patients should include information about the expected pathological findings and morbidity of surgery.
Background: Patients with unplanned excision (UPE) of trunk and extremity soft tissue sarcoma (STS) present a significant management challenge for sarcoma specialists. Oncologic re-resection has been considered standard practice after UPE with positive or uncertain margins. A strategy of active surveillance or watch and wait has been suggested as a safe alternative to routine re-excision. In this context, the current study sought to evaluate short-term outcomes and morbidity after re-resection to better understand the risks and benefits of this treatment strategy. Methods: A retrospective, single-institution study reviewed patients undergoing oncologic re-resection after UPE of an STS during a 5-year period (2015-2020), excluding those with evidence of gross residual disease. Short-term clinical outcomes were evaluated together with final pathologic findings. Results: The review identified 67 patients undergoing re-resection after UPE of an STS. Of these 67 patients, 45 (67%) were treated with a combination of external beam radiation therapy (EBRT) and surgery. Plastic surgery was involved for reconstruction in 49 cases (73%). The rate of wound complications after re-resection was 45 % (n = 30), with 15 % (n = 10) of the patients experiencing a major wound complication. Radiation therapy and plastic surgery involvement were independently associated with wound complications. Notably, 45 patients (67%) had no evidence of residual disease in the re-resection specimen, whereas 13 patients (19 %) had microscopic disease, and 9 patients (13%) had indeterminate pathology. Conclusion: Given the morbidity of re-resection and limited identification of residual disease, treatment plans and discussions with patients should outline the expected pathologic findings and morbidity of surgery.

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