Peri-Neural Invasion Is an Important Prognostic Factor of T2N0 Oral Cancer

<i>Background and objectives</i>: Among patients with pathologically proven T2N0 oral squamous cell carcinoma (OSCC), a notable amount of patients still die from tumor recurrence although they have radical surgery for early stage cancers. In literature, the prognostic indicators of this...

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Main Authors: Chi-Sheng Cheng, Chien-Chih Chen, Yi-Chun Liu, Chen-Chi Wang, Yu-Shu Chou
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Medicina
Subjects:
Online Access:https://www.mdpi.com/1648-9144/58/12/1809
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author Chi-Sheng Cheng
Chien-Chih Chen
Yi-Chun Liu
Chen-Chi Wang
Yu-Shu Chou
author_facet Chi-Sheng Cheng
Chien-Chih Chen
Yi-Chun Liu
Chen-Chi Wang
Yu-Shu Chou
author_sort Chi-Sheng Cheng
collection DOAJ
description <i>Background and objectives</i>: Among patients with pathologically proven T2N0 oral squamous cell carcinoma (OSCC), a notable amount of patients still die from tumor recurrence although they have radical surgery for early stage cancers. In literature, the prognostic indicators of this specific disease entity were rarely reported. This study aims at analyzing the prognostic factors of T2N0 OSCC patients and discussing possible managements to improve the survival. Materials and Methods: From January 2012 to December 2017, the data of 166 pathologically proven T2N0 oral cancer patients proved by radical surgery were retrospectively collected. The clinical and pathologic factors including age, gender, tumor differentiation grade, perineural invasion (PNI), angiolymphatic invasion (ALI), margin status, and adjuvant therapy were analyzed by univariate and multivariate analysis to determine their association with disease-specific survival (DSS), and disease-free survival (DFS), which were calculated by Kaplan–Meier method. Results: After median follow up time of 43.5 months, overall 3-year rates of DSS and DFS were 86.1% and 80.1% respectively for our 166 patients. Univariate analysis showed that the 3-year DSS of 90.8% for PNI negative patients was significantly better than DSS of 57.0% for PNI positive patients (<i>p</i> = 0.0006). The 3-year DFS of 84.2% for PNI negative patients was also significantly better than DFS of 54.6% for PNI positive patients (<i>p</i> = 0.001). Further multivariate analysis revealed PNI was the only independent prognostic factor associated with both DSS (Hazard Ratio (HR) = 5.02; 95% Confidence Interval (CI) = 1.99–12.6; <i>p</i> = 0.001), and DFS (HR = 3.92; 95% CI = 1.65–9.32; <i>p</i> = 0.002). Nearly 10% (16) of the 166 patients had adverse pathologic feature of PNI only. In the 11 patients without adjuvant therapy, 5 patients died from OSCC. No patients had recurrence or mortality after they received adjuvant therapy with chemotherapy ± radiotherapy. Conclusion: PNI was an independent prognostic factor for T2N0 oral cancer patients. Adjuvant chemotherapy and radiotherapy may benefit the survival of this specific disease entity, but further investigations are needed to elucidate the optimal regimen.
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spelling doaj.art-5e742bbe9a9c46f19230e375e45b17462023-11-24T16:33:06ZengMDPI AGMedicina1010-660X1648-91442022-12-015812180910.3390/medicina58121809Peri-Neural Invasion Is an Important Prognostic Factor of T2N0 Oral CancerChi-Sheng Cheng0Chien-Chih Chen1Yi-Chun Liu2Chen-Chi Wang3Yu-Shu Chou4Department of Oral and Maxillofacial Surgery, Taichung Veterans General Hospital, Taichung 407219, Taiwan, ChinaDepartment of Radiation Oncology, Taichung Veterans General Hospital, Taichung 407219, Taiwan, ChinaDepartment of Radiation Oncology, Taichung Veterans General Hospital, Taichung 407219, Taiwan, ChinaDepartment of Audiology and Speech-Language Pathology, Asia University, Taichung 407219, Taiwan, ChinaDepartment of Nuring, Taichung Veterans General Hospital, Taichung 407219, Taiwan, China<i>Background and objectives</i>: Among patients with pathologically proven T2N0 oral squamous cell carcinoma (OSCC), a notable amount of patients still die from tumor recurrence although they have radical surgery for early stage cancers. In literature, the prognostic indicators of this specific disease entity were rarely reported. This study aims at analyzing the prognostic factors of T2N0 OSCC patients and discussing possible managements to improve the survival. Materials and Methods: From January 2012 to December 2017, the data of 166 pathologically proven T2N0 oral cancer patients proved by radical surgery were retrospectively collected. The clinical and pathologic factors including age, gender, tumor differentiation grade, perineural invasion (PNI), angiolymphatic invasion (ALI), margin status, and adjuvant therapy were analyzed by univariate and multivariate analysis to determine their association with disease-specific survival (DSS), and disease-free survival (DFS), which were calculated by Kaplan–Meier method. Results: After median follow up time of 43.5 months, overall 3-year rates of DSS and DFS were 86.1% and 80.1% respectively for our 166 patients. Univariate analysis showed that the 3-year DSS of 90.8% for PNI negative patients was significantly better than DSS of 57.0% for PNI positive patients (<i>p</i> = 0.0006). The 3-year DFS of 84.2% for PNI negative patients was also significantly better than DFS of 54.6% for PNI positive patients (<i>p</i> = 0.001). Further multivariate analysis revealed PNI was the only independent prognostic factor associated with both DSS (Hazard Ratio (HR) = 5.02; 95% Confidence Interval (CI) = 1.99–12.6; <i>p</i> = 0.001), and DFS (HR = 3.92; 95% CI = 1.65–9.32; <i>p</i> = 0.002). Nearly 10% (16) of the 166 patients had adverse pathologic feature of PNI only. In the 11 patients without adjuvant therapy, 5 patients died from OSCC. No patients had recurrence or mortality after they received adjuvant therapy with chemotherapy ± radiotherapy. Conclusion: PNI was an independent prognostic factor for T2N0 oral cancer patients. Adjuvant chemotherapy and radiotherapy may benefit the survival of this specific disease entity, but further investigations are needed to elucidate the optimal regimen.https://www.mdpi.com/1648-9144/58/12/1809adjuvant therapyangiolymphatic invasionchemotherapyperineural invasionoral cancerradiotherapy
spellingShingle Chi-Sheng Cheng
Chien-Chih Chen
Yi-Chun Liu
Chen-Chi Wang
Yu-Shu Chou
Peri-Neural Invasion Is an Important Prognostic Factor of T2N0 Oral Cancer
Medicina
adjuvant therapy
angiolymphatic invasion
chemotherapy
perineural invasion
oral cancer
radiotherapy
title Peri-Neural Invasion Is an Important Prognostic Factor of T2N0 Oral Cancer
title_full Peri-Neural Invasion Is an Important Prognostic Factor of T2N0 Oral Cancer
title_fullStr Peri-Neural Invasion Is an Important Prognostic Factor of T2N0 Oral Cancer
title_full_unstemmed Peri-Neural Invasion Is an Important Prognostic Factor of T2N0 Oral Cancer
title_short Peri-Neural Invasion Is an Important Prognostic Factor of T2N0 Oral Cancer
title_sort peri neural invasion is an important prognostic factor of t2n0 oral cancer
topic adjuvant therapy
angiolymphatic invasion
chemotherapy
perineural invasion
oral cancer
radiotherapy
url https://www.mdpi.com/1648-9144/58/12/1809
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