Lasers in surgery and medicine · 2019
Oncological outcomes of CO2 laser cordectomies for glottic squamous cell carcinoma with respect to anterior commissure involvement and margin status.
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Osuch-Wójcikiewicz Ewa, Rzepakowska Anna, Sobol Maria, Bruzgielewicz Antoni, Niemczyk Kazimierz
Аннотация
BACKGROUND AND OBJECTIVES: Controversial prognostic factors of primary CO2 laser cordectomy are anterior commissure involvement (ACI) and status of margin.
STUDY DESIGN/MATERIALS AND METHODS: Retrospective analysis of oncological outcomes in 102 patients with early glottic cancer undergoing laser cordectomy between 2013 and 2015.
RESULTS: The T stages distribution included: 72.6% T1a, 14.7% T1b, and 12.7% T2. The ACI was diagnosed in 26 patients. The primary cordectomy was radical in 72 patients. The 2- and 5-year disease free survival (DFS) for all patients were, respectively, 83.3% and 77.3%.The 2-year DFS rates for T1a, T1b, T2 were, respectively, 91.7%, 66.7%, and 53.9% and the differences were statistically significant (P < 0.001). The 2-year DFS rates according to the ACI and free anterior commissure tumors were, respectively, 65.4% and 89.2%, and the ACI indicated worse prognosis (P = 0.057). The 2-year DFS rates according to margins status were higher for patients with close or positive margins, who had second resection (88.9%) compared with those of negative margins (80.9%) (P = 0.340). Lasers Surg. Med. © 2019 Wiley Periodicals, Inc.
STUDY DESIGN/MATERIALS AND METHODS: Retrospective analysis of oncological outcomes in 102 patients with early glottic cancer undergoing laser cordectomy between 2013 and 2015.
RESULTS: The T stages distribution included: 72.6% T1a, 14.7% T1b, and 12.7% T2. The ACI was diagnosed in 26 patients. The primary cordectomy was radical in 72 patients. The 2- and 5-year disease free survival (DFS) for all patients were, respectively, 83.3% and 77.3%.The 2-year DFS rates for T1a, T1b, T2 were, respectively, 91.7%, 66.7%, and 53.9% and the differences were statistically significant (P < 0.001). The 2-year DFS rates according to the ACI and free anterior commissure tumors were, respectively, 65.4% and 89.2%, and the ACI indicated worse prognosis (P = 0.057). The 2-year DFS rates according to margins status were higher for patients with close or positive margins, who had second resection (88.9%) compared with those of negative margins (80.9%) (P = 0.340). Lasers Surg. Med. © 2019 Wiley Periodicals, Inc.