Evidence map›Paper›PMID 32048029›Full record

ArticleEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery2020

Surgical nodal management in hypopharyngeal and laryngeal cancer.

M C Ketterer, L A Lemus Moraga, U Beitinger, J Pfeiffer, A Knopf, C Becker

Open access · hybridAbstract read
In one paragraph

Article in European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

14 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Factors associated with occult ipsilateral and contralateral nodal metastasis in resectable lateralized laryngeal and hypopharyngeal malignancies.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Etiology and therapy of pharyngeal perforations.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Observational
  11. Article
  12. Article
  13. Article
  14. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

M C KettererDepartment of Otorhinolaryngology-Head and Neck Surgery, University Medical Centre Freiburg, Killianstrasse 5, 79106, Freiburg, Germany. manuel.christoph.ketterer@uniklinik-freiburg.de.ORCID http://orcid.org/0000-0003-0391-6607
L A Lemus MoragaDepartment of Otorhinolaryngology-Head and Neck Surgery, University Medical Centre Freiburg, Killianstrasse 5, 79106, Freiburg, Germany.
U BeitingerDepartment of Otorhinolaryngology-Head and Neck Surgery, University Medical Centre Freiburg, Killianstrasse 5, 79106, Freiburg, Germany.
J PfeifferDepartment of Otorhinolaryngology-Head and Neck Surgery, University Medical Centre Freiburg, Killianstrasse 5, 79106, Freiburg, Germany.
A KnopfDepartment of Otorhinolaryngology-Head and Neck Surgery, University Medical Centre Freiburg, Killianstrasse 5, 79106, Freiburg, Germany.
C BeckerDepartment of Otorhinolaryngology-Head and Neck Surgery, University Medical Centre Freiburg, Killianstrasse 5, 79106, Freiburg, Germany.
University Medical Center Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe aim of this study is to compare pre-therapeutic staging of the loco-regional lymphatic basin and subsequent surgical management in cN0 versus cN+ hypopharyngeal and laryngeal cancer patients.

methodsWe analyzed all hypopharyngeal and laryngeal carcinoma patients treated surgically at a single quaternary medical care and cancer center between 2004 and 2014. We established two groups for patients who underwent neck dissection comparing patients with a low LNR (lymph node ratio) to one with a high LNR. Regarding the cN0 cohort, elective neck dissection was evaluated as a secondary predictor variable. Comorbidities, such as anemia and renal insufficiency, were analyzed as potentially influencing disease-free (DFS) and overall survival (OS).

resultsA total of 310 patients (185 glottic and 125 supraglottic/hypopharyngeal carcinoma) were included. Pre-therapeutic neck MRI-/CT-scan and concomitant neck ultrasound revealed cN+ status in 144 patients resulting in a significant over-staging in 63 patients (44%) who were rated as being pN0 after histological examination. 166 patients were staged cN0 and 21 underwent elective neck dissection (11 local advanced glottic and 10 supraglottic/hypopharyngeal carcinoma). Two cN0 patients showed occult cervical lymph node metastases (10%). Furthermore, we could detect a significant negative impact of the LNR divided by the number of dissected lymph nodes and OS.

conclusionThe pre-therapeutic clinical evaluation of lymphatic outgrowth is over-staged. OS decreases with increasing LNR divided by the number of dissected lymph nodes. Renal insufficiency and anemia are significant negative factors, decreasing both OS and DFS.

Indexed as

Carcinoma, Squamous CellLaryngeal NeoplasmsHumansLymph NodesNeck DissectionNeoplasm StagingRetrospective StudiescN0Elective neck dissectionHead and neck cancerHypopharyngeal carcinomaLaryngeal carcinomaOverall survival

Identifiers

PMID32048029
PMCPMC7160213
OpenAlexW3005713317

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.