| ORIGINAL ARTICLE
|Year : 2019 | Volume
| Issue : 1 | Page : 29-34
Second primary malignancies in laryngeal carcinoma patients treated with definitive radiotherapy
Yurday Ozdemir, Erkan Topkan
Department of Radiation Oncology, Baskent University Adana Treatment and Research Center, Adana, Turkey
INTRODUCTION: Second primary malignancy (SPM) is associated with decreased overall survival (OS) in laryngeal carcinomas (LC).
METHODS: One hundred eighty three LC patients were analyzed retrospectively. The primary and secondary endpoints were the incidence of SPM and the OS difference between patients with and without SPM.
RESULTS: SPM developed in 22 (12.0%) patients at median 52 months (range, 4–131 months), with a yearly 2.8% incidence, of which 19 (10.4%) and 3 (1.6%) were metachronous and synchronous, respectively. Lung was the commonest SPM (72.7%). Of 47 deaths, 12 (25.5%) were SPM related. Comparatively SPM patients had significantly shorter median OS (68.0 months vs. median not reached; P = 0.005), with lower 5-year (67.0% vs. 78.9%) and 8-year (32.6 vs. 69.8%) survival rates.
CONCLUSION: The present findings suggested the SPM as a competing risk factor for death in index LC patients with its annual incidence rate of 2.8% and for accounting one of every four deaths in this patients group. Emergence of lung carcinoma as the most frequent type of SPM and the ability to treat >50% of them with an estimated long-term outcomes emphasizes the importance of early diagnosis and curative treatment of SPMs.
Department of Radiation Oncology, Baskent University Adana Treatment and Research Center, Adana
Source of Support: None, Conflict of Interest: None
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