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13.02.2018 | Laryngology | Ausgabe 5/2018

European Archives of Oto-Rhino-Laryngology 5/2018

Prognostic value of age, subglottic, and anterior commissure involvement for early glottic carcinoma treated with CO2 laser transoral microsurgery: a retrospective, single-center cohort study of 261 patients

Zeitschrift:
European Archives of Oto-Rhino-Laryngology > Ausgabe 5/2018
Autoren:
Filippo Carta, Fabrizio Bandino, Aurora Marta Olla, Natalia Chuchueva, Clara Gerosa, Roberto Puxeddu
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00405-018-4890-y) contains supplementary material, which is available to authorized users.

Abstract

Purpose

 CO2 laser transoral microsurgery for glottic carcinoma, when indicated, has the well-established advantages of low morbidity and positive oncological outcomes. The present study aims to determine how patient age, and tumor site could negatively impact prognosis; other variables such as the status of the margins of resection, tobacco and alcohol intake, and the grade of differentiation of the tumors have been evaluated.

Methods

This was a retrospective analysis on 261 patients with a glottic carcinoma who underwent CO2 laser transoral microsurgery. The impact of different variables was calculated using univariate and multivariate analyses.

Results

The study included 248 males and 13 females. The median follow-up period was 4.3 years. Five-year disease-specific survival, recurrence-free survival, local control with laser alone, overall laryngeal preservation, and overall survival rates were 99.4, 92.2, 93.8, 97.6, and 85.5%, respectively. Equivalent results were observed in young and elderly patients. Patients with positive margins after CO2 laser transoral microsurgery showed a reduced local control with laser alone. T2 patients with true subglottic spreading and patients with anterior commissure involvement of grade 3 (Rucci’s classification) experienced worse local control rates, despite free surgical margins confirmed by histology.

Conclusions

 CO2 laser transoral microsurgery is an effective and reproducible single-stage modality therapy for young and elderly patients with glottic carcinoma. Superficial close margins can be managed by a careful wait-and-see policy, while positive margins should undergo surgical enlargement. In our experience, undifferentiated tumors, true subglottic extension, and anterior commissure involvement of grade 3 were associated with worse outcomes.

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Zusatzmaterial
Supplementary material 1 (XLSX 253 KB)
405_2018_4890_MOESM1_ESM.xlsx
Literatur
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