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01-04-2006

Long-Term Results of Two Prospective Trials of Preoperative External Beam Radiotherapy for Localized Intermediate- or High-Grade Retroperitoneal Soft Tissue Sarcoma

Authors: Timothy M. Pawlik, MD, MPH, Peter W. T. Pisters, MD, Lynn Mikula, MD, Barry W. Feig, MD, Kelly K. Hunt, MD, Janice N. Cormier, MD, MPH, Matthew T. Ballo, MD, Charles N. Catton, MD, Julia J. Jones, MD, Brian O’Sullivan, MD, Raphael E. Pollock, MD, PhD, Carol J. Swallow, MD, PhD

Published in: Annals of Surgical Oncology | Issue 4/2006

Abstract

Background

The reported data on surgery plus radiotherapy for retroperitoneal soft tissue sarcomas (RPS) have been mostly from retrospective studies. We evaluated the long-term outcome of patients with operable RPS who were treated with protocol-based preoperative radiotherapy followed by complete surgical resection.

Methods

Data from two prospective trials that included preoperative radiotherapy and surgery for patients with radiographically resectable RPS were combined to define long-term relapse rates and survival.

Results

Seventy-two patients with intermediate- or high-grade RPS were treated with preoperative radiotherapy (median dose, 45 Gy; range, 18.0–50.4 Gy). Fifty-four patients (75%) had primary RPS, whereas 18 (25%) had recurrent disease. The median tumor size was 15.5 cm. Sixty-four patients completed the planned preoperative radiotherapy; 57 (89%) underwent laparotomy with curative intent, and 54 (95%) had a macroscopically complete (R0 or R1) resection. With a median follow-up of 40.3 months, 28 patients (52%) who received preoperative radiotherapy and underwent a macroscopically complete resection had recurrences. For the 54 patients who underwent R0 or R1 resection after preoperative radiotherapy, the 5-year local recurrence–free, disease-free, and overall survival rates were 60%, 46%, and 61%, respectively. The median overall survival has not been reached (>60 months).

Conclusions

Patients with intermediate- or high-grade RPS treated with preoperative radiotherapy plus complete resection had a median survival >60 months. This compares favorably to historical data for similar patients treated with surgery alone.

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Title: Long-Term Results of Two Prospective Trials of Preoperative External Beam Radiotherapy for Localized Intermediate- or High-Grade Retroperitoneal Soft Tissue Sarcoma
Authors: Timothy M. Pawlik, MD, MPH
Peter W. T. Pisters, MD
Lynn Mikula, MD
Barry W. Feig, MD
Kelly K. Hunt, MD
Janice N. Cormier, MD, MPH
Matthew T. Ballo, MD
Charles N. Catton, MD
Julia J. Jones, MD
Brian O’Sullivan, MD
Raphael E. Pollock, MD, PhD
Carol J. Swallow, MD, PhD
Publication date: 01-04-2006
Publisher: Springer-Verlag
Published in: Annals of Surgical Oncology / Issue 4/2006
Print ISSN: 1068-9265
Electronic ISSN: 1534-4681
DOI: https://doi.org/10.1245/ASO.2006.05.035

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Long-Term Results of Two Prospective Trials of Preoperative External Beam Radiotherapy for Localized Intermediate- or High-Grade Retroperitoneal Soft Tissue Sarcoma

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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