How does the close surgical margin impact recurrence and survival when treating oral squamous cell carcinoma?

Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons
Jasjit K DillonNeal D Futran

Abstract

The surgical margin is the main prognostic factor over which the surgeon has control during resection of oral squamous cell carcinoma (OSCC). This study examined the association between surgical excision margins of patients with OSCC and outcomes of disease-free and overall survival. The authors implemented a retrospective cohort study. The sample was composed of patients with OSCC having resection as their initial treatment. The predictor variable was the pathologic surgical margin, defined as clear (>5 mm), close (1 to 5 mm), or involved (<1 mm). The outcome variables were disease-free (absence of locoregional recurrence) and overall survival. Data were analyzed using Kaplan-Meier survival curves and Cox regression hazard model. The sample was composed of 54 patients with a mean age of 60.5 years (range, 19 to 85 yr) and 26% were women. The 2- and 5-year overall survival rates were 59 and 50%, respectively. The clear surgical margin group showed higher disease-free survival rates than patients with close and involved margins (5-yr probability, 0.78 vs 0.43 and 0.29; P = .014) and a trend toward increased overall survival at 2 and 5 years (P = .093). The results suggest that the presence of a close surgical margin (1 to 5 mm) ...Continue Reading

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Citations

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