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Salvage surgery for a locally persistent or recurrent tumour in maxillary cancer patients who have undergone radiotherapy and concomitant intra-arterial cisplatin: implications for surgical margin assessment.
International Journal of Oral and Maxillofacial Surgery 2018 November 16
Limited information about salvage surgery is available for locally persistent and recurrent maxillary sinus cancers after the completion of chemoradiation therapy. Seventy-six maxillary sinus cancer patients who had undergone chemoradioselection using initial radiotherapy and concomitant intra-arterial cisplatin were screened retrospectively. Twenty-four of these patients who had a locally persistent or recurrent tumour were investigated. The 2-year overall survival rate of patients with maxillary sinus cancer of all types was 39.0% for those who underwent salvage surgery and 10.0% for those who did not. The 2-year overall survival rate of patients with maxillary sinus squamous cell carcinoma was 45.8% for those who underwent salvage surgery and 11.1% for those who did not. Furthermore, the 2-year local control and overall survival rates of patients with positive and negative surgical margins were 14.3% and 83.3% and 14.3% and 66.7%, respectively. There were significant differences in local control (P=0.004) and overall survival (P=0.005) regarding surgical margin status. Although salvage surgery for a locally persistent or recurrent maxillary sinus cancer is a feasible treatment, patients with positive surgical margins are more prone to local relapse. Therefore, surgical safety margins should be assessed thoroughly.
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