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已发表论文
口腔鳞状细胞癌颈部 IIb 转移：系统综述和荟萃分析
Authors Kou Y, Zhao T, Huang S, Liu J, Duan W, Wang Y, Wang Z, Li D, Ning C, Sun C
Received 6 June 2017
Accepted for publication 1 August 2017
Published 11 September 2017 Volume 2017:10 Pages 4475—4483
DOI https://doi.org/10.2147/OTT.S143392
Checked for plagiarism Yes
Review by Single-blind
Peer reviewers approved by Dr Colin Mak
Peer reviewer comments 2
Editor who approved publication: Dr Carlos Vigil Gonzales
Purpose: The aim of this study
was to clarify whether level IIb dissection should be performed or avoided in
the treatment of oral squamous cell carcinoma by meta-analysis.
Materials and methods: Articles that were published before June 2017 were searched electronically in four databases (Web of Science, PubMed, Ovid and China National Knowledge Infrastructure) without any date or language restrictions by two independent reviewers. Abstracts and full-text papers which investigated the cervical metastases to level IIb from primary head and neck cancers and were deemed potentially relevant were screened. Data were analyzed using RevMan 5.3.
Results: Four hundred and fifty-five abstracts and 129 full-text papers were screened, and 22 studies were included in the analysis. Among the 2001 patients included, 112 patients had level IIb metastases, the pooled frequency of which was 6% (95% confidence interval [CI]: 4.0–7.0). Among the 400 patients with tongue squamous cell carcinoma from 12 studies, 37 patients had level IIb metastases, the pooled incidence of which was 7% (95% CI: 5.0–10.0). Metastases to level IIb always went together with level IIa, and only three patients were found to have isolated level IIb metastases without involving the other levels.
Conclusion: Due to the low frequency of level IIb nodal metastases in oral squamous cell carcinoma patients and rare occurrence of isolated level IIb, level IIb dissection could be avoided when the primary lesions were in early stages (T1 and T2), with the exception of tongue cancer. It is recommended to dissect level IIb tongue cancers without considering the stages of primary lesions and the lymph nodes status. It is also suggested that level IIb dissection should be performed in patients preoperatively or intraoperatively found with multilevel neck metastasis, especially level IIa metastasis.
Keywords: level IIb, meta-analysis, neck dissection, oral squamous cell carcinoma, submuscular recess
Materials and methods: Articles that were published before June 2017 were searched electronically in four databases (Web of Science, PubMed, Ovid and China National Knowledge Infrastructure) without any date or language restrictions by two independent reviewers. Abstracts and full-text papers which investigated the cervical metastases to level IIb from primary head and neck cancers and were deemed potentially relevant were screened. Data were analyzed using RevMan 5.3.
Results: Four hundred and fifty-five abstracts and 129 full-text papers were screened, and 22 studies were included in the analysis. Among the 2001 patients included, 112 patients had level IIb metastases, the pooled frequency of which was 6% (95% confidence interval [CI]: 4.0–7.0). Among the 400 patients with tongue squamous cell carcinoma from 12 studies, 37 patients had level IIb metastases, the pooled incidence of which was 7% (95% CI: 5.0–10.0). Metastases to level IIb always went together with level IIa, and only three patients were found to have isolated level IIb metastases without involving the other levels.
Conclusion: Due to the low frequency of level IIb nodal metastases in oral squamous cell carcinoma patients and rare occurrence of isolated level IIb, level IIb dissection could be avoided when the primary lesions were in early stages (T1 and T2), with the exception of tongue cancer. It is recommended to dissect level IIb tongue cancers without considering the stages of primary lesions and the lymph nodes status. It is also suggested that level IIb dissection should be performed in patients preoperatively or intraoperatively found with multilevel neck metastasis, especially level IIa metastasis.
Keywords: level IIb, meta-analysis, neck dissection, oral squamous cell carcinoma, submuscular recess
