Evidence map›Paper›PMID 35596198›Full record

SynthesisCancer imaging : the official publication of the International Cancer Imaging Society2022

Prognostic value of cervical nodal necrosis on staging imaging of nasopharyngeal carcinoma in era of intensity-modulated radiotherapy: a systematic review and meta-analysis.

Qi-Yong H Ai, Kuo Feng Hung, Tiffany Y So, Frankie K F Mo, Wing Tsung Anthony Chin, Edwin P Hui, Brigette B Y Ma, Michael Ying, Ann D King

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Cancer imaging : the official publication of the International Cancer Imaging Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Regional lymph node density-based nomogram predicts prognosis in nasopharyngeal carcinoma patients without distant metastases.Cancer imaging : the official publication of the International Cancer Imaging Society · 2023
    Article
  10. Article
  11. Normal size of benign upper neck nodes on MRI: parotid, submandibular, occipital, facial, retroauricular and level IIb nodal groups.Cancer imaging : the official publication of the International Cancer Imaging Society · 2022
    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

9 authors.

Qi-Yong H Ai *Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong S.A.R., P.R. China. hemis.ai@polyu.edu.hk.ORCID http://orcid.org/0000-0002-1155-4389
Kuo Feng Hung *Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Hong Kong, Hong Kong, Hong Kong S.A.R., P.R. China.
Tiffany Y SoDepartment of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong S.A.R., P.R. China.
Frankie K F MoDepartment of Clinical Oncology, State Key Laboratory in Oncology in South China, The Chinese University of Hong Kong, Prince of Wales Hospital, Sir Y.K. Pao Centre for Cancer, New Territories, Hong Kong S.A.R., P.R. China.
Wing Tsung Anthony ChinDepartment of Radiology and Organ Imaging, United Christian Hospital, Kowloon, Hong Kong S.A.R., P.R. China.
Edwin P HuiDepartment of Clinical Oncology, State Key Laboratory in Oncology in South China, The Chinese University of Hong Kong, Prince of Wales Hospital, Sir Y.K. Pao Centre for Cancer, New Territories, Hong Kong S.A.R., P.R. China.
Brigette B Y MaDepartment of Clinical Oncology, State Key Laboratory in Oncology in South China, The Chinese University of Hong Kong, Prince of Wales Hospital, Sir Y.K. Pao Centre for Cancer, New Territories, Hong Kong S.A.R., P.R. China.
Michael YingDepartment of Health Technology and Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong S.A.R., P.R. China.
Ann D KingDepartment of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Prince of Wales Hospital, New Territories, Hong Kong S.A.R., P.R. China.

Funding

Department of Health Technology and Informatics, The Hong Kong Polytechnic University no. SF2122-HA
6 · The paper itself

Abstract

purposesTo systematically review and perform meta-analysis to evaluate the prognostic value of cervical nodal necrosis (CNN) on the staging computed tomography/magnetic resonance imaging (MRI) of nasopharyngeal carcinoma (NPC) in era of intensity-modulated radiotherapy.

methodsLiterature search through PubMed, EMBASE, and Cochrane Library was conducted. The hazard ratios (HRs) with 95% confidence intervals (CIs) of CNN for distant metastasis-free survival (DMFS), disease free survival (DFS) and overall survival (OS) were extracted from the eligible studies and meta-analysis was performed to evaluate the pooled HRs with 95%CI.

resultsNine studies, which investigated the prognostic values of 6 CNN patterns on MRI were included. Six/9 studies were eligible for meta-analysis, which investigated the CNN presence/absence in any nodal group among 4359 patients. The pooled unadjusted HRs showed that the CNN presence predicted poor DMFS (HR =1.89, 95%CI =1.72-2.08), DFS (HR =1.57, 95%CI =1.08-2.26), and OS (HR =1.87, 95%CI =1.69-2.06). The pooled adjusted HRs also showed the consistent results for DMFS (HR =1.34, 95%CI =1.17-1.54), DFS (HR =1.30, 95%CI =1.08-1.56), and OS (HR =1.61, 95%CI =1.27-2.04). Results shown in the other studies analysing different CNN patterns indicated the high grade of CNN predicted poor outcome, but meta-analysis was unable to perform because of the heterogeneity of the analysed CNN patterns.

conclusionThe CNN observed on the staging MRI is a negative factor for NPC outcome, suggesting that the inclusion of CNN is important in the future survival analysis. However, whether and how should CNN be included in the staging system warrant further evaluation.

Indexed as

Nasopharyngeal NeoplasmsRadiotherapy, Intensity-ModulatedHumansMagnetic Resonance ImagingNasopharyngeal CarcinomaNecrosisNeoplasm StagingPrognosisRetrospective StudiesCervical nodal necrosisImagingMeta-analysisNasopharyngeal carcinomaPrognostic value

Identifiers

PMID35596198
PMCPMC9123677

What OpenQuestion holds

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LicenceCC BY
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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.