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Prognostic value of pre-operative peripheral inflammation markers in patients with squamous cell carcinoma of the external auditory canal / Valor prognóstico dos marcadores de inflamação periférica pré-operatórios em pacientes com carcinoma espinocelular do meato acústico externo
Li, Feitian; Shi, Xunbei; Dai, Chunfu.
  • Li, Feitian; Fudan University. Eye, Ear, Nose and Throat Hospital. Department of Otology and Skull Base Surgery. Shanghai. CN
  • Shi, Xunbei; Fudan University. Eye, Ear, Nose and Throat Hospital. Department of Otology and Skull Base Surgery. Shanghai. CN
  • Dai, Chunfu; Fudan University. Eye, Ear, Nose and Throat Hospital. Department of Otology and Skull Base Surgery. Shanghai. CN
Braz. j. otorhinolaryngol. (Impr.) ; 88(2): 161-167, Mar.-Apr. 2022. tab, graf
Article in English | LILACS | ID: biblio-1374716
ABSTRACT
Abstract

Introduction:

Squamous cell carcinoma of the external auditory canal is a rare entity. Previous studies have suggested predictors for tumor recurrence. However, most of the prognostic factors were from the clinicopathological aspect.

Objective:

This study aims to analyze the correlation between pre-operative peripheral inflammation markers and survival outcomes, in order to identify prognostic biomarkers for patients with squamous cell carcinoma of the external auditory canal.

Methods:

We retrospectively analyzed patients diagnosed with squamous cell carcinoma of the external auditory canal who underwent surgery at our institute. The pre-operative circulating inflammatory markers, such as the neutrophil, lymphocyte, platelet, and monocyte counts were measured and their ratios including neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio and lymphocyte-to-monocyte ratio were calculated. The prognostic value of the measured hematologic parameters in relation to the survival outcomes was also evaluated.

Results:

A total of 83 patients were included, of which 26 patients showed tumor recurrence and 57 without recurrence. Neutrophil counts and neutrophil-to-lymphocyte ratio were closely connected with tumor stage. In the patients with recurrence, neutrophil counts, neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio were elevated (p< 0.0001, p< 0.0001 and p = 0.001), while lymphocyte counts and lymphocyte-to-monocyte ratio were decreased (p = 0.013 and p = 0.016, respectively). The receiver operating curve analysis indicated that pre-operative neutrophil-to-lymphocyte ratio is a potential prognostic marker for recurrence of squamous cell carcinoma of the external auditory canal (area under curve = 0.816), and the cut-off points was 2.325.

Conclusions:

Pre-operative neutrophil and lymphocyte counts, neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, lymphocyte-to-monocyte are significantly correlated with tumor recurrence in patients with external auditory canal squamous cell carcinoma. Furthermore, neutrophil-to-lymphocyte ratio may be unfavorable prognostic factors of this disease.
RESUMO
Resumo

Introdução:

O carcinoma espinocelular do meato acústico externo é uma doença rara. Estudos anteriores sugeriram preditores de recorrência do tumor. Entretanto, a maioria dos fatores prognósticos se originou do aspecto clínico-patológico.

Objetivo:

Analisar a correlação entre marcadores inflamatórios periféricos pré-operatórios e os desfechos de sobrevida e identificar biomarcadores prognósticos para pacientes com carcinoma espinocelular do meato acústico externo.

Método:

Analisamos retrospectivamente pacientes com diagnóstico de carcinoma espinocelular do meato acústico externo submetidos à cirurgia em nosso instituto. Os marcadores inflamatórios circulantes pré-operatórios, como as contagens de neutrófilos, linfócitos, plaquetas e monócitos, foram medidos e as suas relações calculadas, inclusive as relações neutrófilos/linfócitos, plaquetas/linfócitos e linfócitos/monócitos. O valor prognóstico dos parâmetros hematológicos medidos em relação aos desfechos de sobrevida também foi avaliado.

Resultados:

Foram incluídos 83 pacientes, entre os quais 26 apresentaram recorrência tumoral e 57 não apresentaram. A contagem de neutrófilos e a relação neutrófilo/linfócito estavam intimamente associadas ao estágio do tumor. Nos pacientes com recorrência, a contagem de neutrófilos, a relação neutrófilos/linfócitos e a relação plaquetas/linfócitos eram elevadas (p < 0,0001, p > 0,0001 e p = 0,001), enquanto a contagem de linfócitos e a relação linfócitos/monócitos estavam diminuídas (p = 0,012 ep = 0,016, respectivamente). A análise da curva, Receiver Operating Characteristic, indicou que a relação neutrófilos/linfócitos pré-operatória era um potencial marcador prognóstico para a recorrência de carcinoma espinocelular do meato acústico externo (Área sob a curva = 0,816) e o ponto de corte foi de 2,325.

Conclusão:

A contagem pré-operatória de neutrófilos e linfócitos, as relações neutrófilos/linfócitos, plaquetas/linfócitos e linfócitos/monócitos estão significativamente correlacionadas com a recorrência do tumor em pacientes com carcinoma espinocelular do meato acústico externo. Além disso, a relação neutrófilos/linfócitos pode ser um fator prognóstico desfavorável dessa doença.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Carcinoma, Squamous Cell / Neoplasm Recurrence, Local Type of study: Observational study / Prognostic study / Risk factors Limits: Humans Language: English Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2022 Type: Article Affiliation country: China Institution/Affiliation country: Fudan University/CN

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Full text: Available Index: LILACS (Americas) Main subject: Carcinoma, Squamous Cell / Neoplasm Recurrence, Local Type of study: Observational study / Prognostic study / Risk factors Limits: Humans Language: English Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2022 Type: Article Affiliation country: China Institution/Affiliation country: Fudan University/CN