Impact of Close and Positive Margins in Transoral Laser Microsurgery for Tis–T2 Glottic Cancer

Autor: Ivana Fiz, Francesco Mazzola, Francesco Fiz, Filippo Marchi, Marta Filauro, Alberto Paderno, Giampiero Parrinello, Cesare Piazza, Giorgio Peretti
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Frontiers in Oncology, Vol 7 (2017)
Druh dokumentu: article
ISSN: 2234-943X
DOI: 10.3389/fonc.2017.00245
Popis: IntroductionTransoral laser microsurgery (TLM) represents one of the most effective treatment strategies for Tis–T2 glottic squamous cell carcinomas (SCC). The prognostic influence of close/positive margins is still debated, and the role of narrow band imaging (NBI) in their intraoperative definition is still to be validated on large cohort of patients. This study analyzed the influence of margin status on recurrence-free survival (RFS) and disease-specific survival (DSS).MethodsWe retrospectively studied 507 cases of pTis–T1b (Group A) and 127 cases of pT2 (Group B) glottic SCC. We identified the following margin status: negative (n = 232), close superficial (n = 79), close deep (CD) (n = 35), positive single superficial (n = 146), positive multiple superficial (n = 94), and positive deep (n = 48) and analyzed their impact on RFS and DSS. Close margins were defined by tumor-margin distance
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