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Postoperative irradiation for squamous cell carcinoma of the oral cavity: 35-year experience

✍ Scribed by Russell W. Hinerman; William M. Mendenhall; Christopher G. Morris; Robert J. Amdur; John W. Werning; Douglas B. Villaret

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
406 KB
Volume
26
Category
Article
ISSN
1043-3074

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✦ Synopsis

Abstract

Background.

The purpose of this study was to analyze factors influencing outcome in patients who received postoperative irradiation for advanced squamous cell carcinoma of the oral cavity.

Methods.

Between October 1964 and November 2000, 226 patients with 230 previously untreated primary invasive squamous cell carcinomas of the oral cavity were treated postoperatively with continuous‐course external beam irradiation. All patients had a minimum follow‐up of 2 years (analysis, November 2002). No patient was lost to follow‐up.

Results.

The 5‐year actuarial rates of locoregional control by pathologic American Joint Committee on Cancer stage were: stage I, 100%; stage II, 84%; stage III, 78%; and stage IV, 66%. Recurrence of cancer above the clavicles developed in 55 patients (24%). In multivariate analysis of locoregional control, positive margins, vascular invasion, perineural invasion, extracapsular extension, and T classification remained significant.

Conclusions.

This article provides additional data defining relatively favorable and unfavorable groups of patients in the postoperative setting. Dose recommendations are re‐examined and selectively increased for high‐risk patients. Β© 2004 Wiley Periodicals, Inc. Head Neck 26: 984–994, 2004

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