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Τρίτη 7 Φεβρουαρίου 2023

Adjuvant Radiation and Survival Following Surgical Resection of Sinonasal Adenocarcinoma

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Adjuvant Radiation and Survival Following Surgical Resection of Sinonasal Adenocarcinoma

Sinonasal adenocarcinoma is a rare primary malignancy treated with surgical resection with or without adjuvant radiotherapy. In this study, we saw that radiation therapy may not have an attributable survival benefit.


Objectives

This study aims to investigate the utility of adjuvant radiation in patients who undergo surgical resection for the management of node-negative sinonasal adenocarcinoma (SNAC).

Study Design

Retrospective database review.

Methods

The 2004–2016 National Cancer Data Base (NCDB) was used to extract patients with surgically resected node-negative SNAC. Kaplan–Meier survival analysis and Cox-Proportional Hazards Modelling were used to analyze the impact of adjuvant radiation on overall survival (OS) following surgery.

Results

349 patients with SNAC underwent surgical resection. Of these patients, 154 (44.1%) received adjuvant radiotherapy (RT). Although there was no significant difference in race, age, or sex of those receiving RT, those receiving RT have more advanced diseases and are more likely to have positive margins. Kaplan Meier analysis showed no significant difference in 5-year OS in patient who received adjuvant RT in comparison to those who underwent surgical resection alone (65.7% vs. 72.6%, respectively; p = 0.378). In addition, when looking at only patients with positive margins, 5-year OS still did not have a significant difference (73.8% vs. 61.6%, respectively; p = 0.101). Only patients with clinical AJCC T4 showed a statistically significant survival benefit with adjuvant RT (56.9% vs. 29.9%, respectively; p = 0.009).

Conclusions

Adjuvant RT does not appear to provide a significant survival benefit in patients with resected SNAC, with the exception of those with clinically AJCC T4 disease.

Level of Evidence

4 Laryngoscope, 2023

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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,

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