Retroperitoneal Sarcomas: Does Laterality Matter?

Analysis of potential risk factors in the survival of patients with primary retroperitoneal liposarcoma

INTRODUCTION

The present work is an observational study of a series of variables regarding overall survival and disease-free survival in patients diagnosed with primary liposarcoma.

METHODS

The study is prospective with retrolective data collection that includes all patients with primary liposarcoma referred to Hospital Son Espases University Hospital, Palma de Mallorca, Spain from January 1990 to December 2019.

RESULTS

The study includes 50 patients and the compartment surgery was performed in 18 patients (36%) of cases. The mean overall survival of the sample was 15.57 years (95% CI: 12.02-19.12) and the mean disease-free survival was 6.70 years (95% CI: 4.50-8.86).

CONCLUSION

Compartment surgery has not shown benefits in terms of overall survival and disease-free survival. The ASA classification (≥3) predicts a poor prognosis in both overall survival and disease-free survival. Resection with free margins, described on the pathological results and defined in this work as R0, show better disease-free survival.

Analysis of potential risk factors in the survival of patients with primary retroperitoneal liposarcoma

INTRODUCTION

The present work is an observational study of a series of variables regarding overall survival and disease-free survival in patients diagnosed with primary liposarcoma.

METHODS

The study is prospective with retrolective data collection that includes all patients with primary liposarcoma referred to Hospital Son Espases University Hospital, Palma de Mallorca, Spain from January 1990 to December 2019.

RESULTS

The study includes 50 patients and the compartment surgery was performed in 18 patients (36%) of cases. The mean overall survival of the sample was 15.57 years (95% CI: 12.02-19.12) and the mean disease-free survival was 6.70 years (95% CI: 4.50-8.86).

CONCLUSION

Compartment surgery has not shown benefits in terms of overall survival and disease-free survival. The ASA classification (≥3) predicts a poor prognosis in both overall survival and disease-free survival. Resection with free margins, described on the pathological results and defined in this work as R0, show better disease-free survival.

Risk factors influencing prognosis of patients undergoing primary retroperitoneal tumor surgery

BACKGROUND

Primary retroperitoneal tumors are mostly malignancies with a variety of etiologies. Parameters such as tumor grade, range of resection, and tumor integrity have been shown to influence prognosis.

AIM

To identify the risk factors for postoperative survival in patients undergoing primary retroperitoneal tumor surgery.

METHODS

Seventy-three patients undergoing radical retroperitoneal tumor surgery were divided into a tumor-free survival group (47 cases) and a recurrence-caused death group (26 cases). Factors affecting patients' tumor-free survival after surgery were collected and analyzed, including age, tumor long diameter, lymph node metastasis, first symptom, tumor type, tumor differentiation degree, and complication with other systemic diseases.

RESULTS

The 5-year tumor-free survival rate for primary retroperitoneal tumors was 64.4% (47/73). Single factor analysis showed that age (P < 0.05), tumor long diameter (P < 0.05), lymph node metastasis (P < 0.05), first symptom (P < 0.05), tumor type (P < 0.05), and tumor differentiation degree (P < 0.05) were significantly associated with retroperitoneal tumor surgery disease-free survival rate. Multivariate Cox regression analysis indicated that first symptom (P < 0.05) and tumor type (P < 0.05) were independent risk factors affecting postoperative tumor-free survival in retroperitoneal tumor patients.

CONCLUSION

First symptom and tumor type are the key factors affecting the postoperative tumor-free survival of retroperitoneal tumor patients.