Evidence map›Paper›PMID 31482343›Full record

ArticleWorld journal of surgery2019

Relevance of Level IIb Neck Dissection in Patients with Head and Neck Squamous Cell Carcinomas.

Seiji Hosokawa, Daiki Mochizuki, Goro Takahashi, Jun Okamura, Atsushi Imai, Ryuji Ishikawa, Yoshinori Takizawa, Takashi Yamatodani, Kiyoshi Misawa, Hiroyuki Mineta

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Article in World journal of surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.5field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 11 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Seiji HosokawaDepartment of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan. seijih@hama-med.ac.jp.
Daiki MochizukiDepartment of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
Goro TakahashiDepartment of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
Jun OkamuraDepartment of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
Atsushi ImaiDepartment of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
Ryuji IshikawaDepartment of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
Yoshinori TakizawaDepartment of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
Takashi YamatodaniDepartment of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
Kiyoshi MisawaDepartment of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
Hiroyuki MinetaDepartment of Otorhinolaryngology/Head and Neck Surgery, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
Hamamatsu University School of Medicine · JPSeirei Hamamatsu General Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCervical nodal metastasis is the most important prognostic factor in patients with head and neck cancers. Unfortunately, nodal dissection at level IIb carries a risk of damage to the spinal accessory nerve. We aimed to determine the prevalence of level IIb metastasis and the relevance of nodal dissection at level IIb in patients with head and neck squamous cell carcinomas.

methodsDuring neck dissection, level IIb lymph nodes obtained from 181 patients with head and neck squamous cell carcinomas were removed, processed, and histopathologically examined. All specimens were divided into two groups according to the side (affected and unaffected sides). The number of dissected lymph nodes and prevalence of level IIb metastasis in each group were then determined and compared according to the preoperative clinical N stage (cN0 and cN+).

resultsThe study included 158 men and 23 women with a median age of 65 years (range, 17-89 years). The prevalence of pathologically confirmed level IIb metastasis was 0% for clinically node-negative (cN0) necks on the unaffected side and 10.34% for clinically node-positive necks (cN+), with an overall prevalence of 2.4%. There was a significant association between clinically determined and pathologically confirmed node negativity at level IIb.

conclusionOur findings suggest that level IIb neck dissection in patients with head and neck squamous cell carcinomas may be required only if preoperative examination reveals multilevel or level IIa metastasis or suspicious level IIb metastasis.

Indexed as

Neck DissectionAdolescentAdultAgedAged, 80 and overFemaleHead and Neck NeoplasmsHumansLymphatic MetastasisLymph Node ExcisionLymph NodesMaleMiddle AgedNeckNeoplasm StagingProspective Studies

Identifiers

PMID31482343
OpenAlexW2972117081

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.