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Observational Study
. 2023 Feb;28(2):209-220.
doi: 10.1007/s10147-022-02275-w. Epub 2022 Nov 27.

Elective neck dissection for T3-T4N0 laryngeal carcinoma: evidence from Japan's National Head and Neck Cancer Registry

Yuki Saito  1 , Seiichi Yoshimoto  2 , Megumi Kitayama  3 , Takaaki Hayashi  4 , Koji Yamamura  4 , Kenya Kobayashi  4 , Osamu Fukuoka  4 , Ken-Ichi Nibu  5 , Tatsuya Yamasoba  4
Affiliations
Observational Study

Elective neck dissection for T3-T4N0 laryngeal carcinoma: evidence from Japan's National Head and Neck Cancer Registry

Yuki Saito et al. Int J Clin Oncol. 2023 Feb.

Abstract

Background: Although total laryngectomy is the standard treatment for advanced laryngeal cancer, the significance of elective neck dissection (END) for N0 laryngeal cancer remains unclear in Japan, which is an aging society.

Methods: We conducted a retrospective nationwide observational study on patients with T3-T4N0 laryngeal squamous cell carcinoma treated with curative total laryngectomy from 2011 to 2018 in Japan.

Results: A total of 1,218 patients were analyzed. The median patient age was 72 years, with 735 cases of T3N0 and 483 cases of T4N0. END was performed on the affected side in 850 patients (70%) and on the contralateral side in 502 patients (41.2%). END on the affected side was omitted in patients aged > 80 years (40.4%) and in patients with an advanced performance status. The occult lymph-node metastasis rate did not differ by age (18.8%-19.6%); it tended to increase chronologically from 2011 (11.1%) and was higher in cT4a (22.5%) and pT4a (24.3%) cases. In this study, coherent clinical information and follow-up data were available for 252 patients. Both univariate and multivariate analyses showed no significant prognostic factors for overall survival or recurrence-free survival for either affected or contralateral END. Older age and subglottic location were poor prognostic factors, but death due to factors other than laryngeal cancer could not be ignored in older patients.

Conclusion: Omission of END during laryngectomy for T3-T4N0 laryngeal cancer is acceptable for older patients who want their operation to be completed in a short time.

Keywords: Elective neck dissection; Laryngeal carcinoma; Lymph-node metastasis; Older adults.

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