Factors Associated with Total Laryngectomy Following Organ-preserving Treatment of Laryngeal SCC

Overview

Journal Laryngoscope Investig Otolaryngol

Publisher Wiley

Specialty Otorhinolaryngology

Date 2024 Aug 7

PMID 39108948

Authors

Mitchell T Victor

Farhoud Faraji

Rohith Voora

Sandhya Kalavacherla

Loren K Mell

Brent S Rose

Theresa W Guo

Affiliations

Soon will be listed here.

Abstract

Objectives: A subset of laryngeal squamous cell carcinoma (LSCC) patients undergoing larynx preserving treatment ultimately require total laryngectomy (TL) for oncologic or functional reasons. This study aims to identify TL risk factors in these patients.

Methods: Retrospective cohort study using Veterans Affairs (VA) database. T1-T4 LSCC cases treated with primary radiotherapy (XRT) or chemoradiotherapy (CRT) were assessed for TL and recurrence. Binary logistic and Cox regression and Kaplan-Meier analyses were implemented.

Results: Of 5390 cases, 863 (16.0%) underwent TL. On multivariable analysis, age (adjusted odds ratio: 0.97 [0.96-0.98]; < .001) and N3 disease (0.42 [0.18-1.00]; = .050) were associated with reduced risk of TL, whereas current alcohol use (1.22 [1.04-1.43]; = .015) and >T1 disease (T2, 1.76 [1.44-2.17]; < .001; T3, 2.06 [1.58-2.68]; < .001; T4, 1.79 [1.26-2.53]; = .001) were associated with increased risk of TL. However, N2 (adjusted hazard ratio: 1.30 [1.10-1.55]; = .003) and N3 (2.02 [1.25-3.26]; = .004) disease were associated with an increased risk for local recurrence. Compared to XRT, treatment with CRT was associated with reduced risk for local recurrence after adjusting for other factors (0.84 [0.70-0.99]; = .044). Those who do not receive TL following local recurrence have poorer disease-specific survival (log-rank, < .001). In patients without local recurrence, N2 disease was associated with a fourfold increase in risk of TL (4.24 [1.83-9.82]; < .001).

Conclusion: Advanced nodal stage was associated with reduced rates of salvage TL in the setting of local recurrence, and subsequent worse prognosis after recurrence. Conversely, advanced nodal stage may increase the risk for functional salvage TL in patients without recurrence.

Level Of Evidence: Level 3.

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