Radical excision for retroperitoneal soft tissue sarcoma: A national propensity-matched outcomes analysis

Area of Science:

• Oncology
• Surgical Oncology
• Sarcoma Research

Background:

• Retroperitoneal soft tissue sarcoma is rare, limiting studies on radical excision's survival impact.
• Evaluating radical excision versus tumor-only resection is crucial for optimizing treatment strategies.

Purpose of the Study:

• To assess the impact of radical excision (tumor + adjacent organs) versus tumor-only resection on survival outcomes in retroperitoneal soft tissue sarcoma.
• To identify factors influencing the decision for radical excision in these rare tumors.

Main Methods:

• A propensity score-matched analysis of 1,139 patients from the National Cancer Database (2004-2015).
• Comparison of short- and long-term outcomes, including mortality and overall survival.
• Subgroup analyses for tumor grade, histology, organ involvement, and hospital volume.

Main Results:

• No significant differences in 30-day mortality, 90-day mortality, or overall survival between radical excision and tumor-only resection groups.
• Subgroup analyses, including localized tumors without organ invasion, showed no survival differences.
• Radical excision was associated with lower resection rates and longer hospital stays.

Conclusions:

• Radical excision does not improve survival for retroperitoneal soft tissue sarcoma, regardless of tumor characteristics or hospital volume.
• Resecting adjacent organs may increase morbidity without improving survival benefits.
• Findings support tailored surgical approaches based on histology and specific clinical situations.