Evidence map›Paper›PMID 26027955›Full record

SynthesisBMC cancer2015

Lymph node density as a prognostic variable in node-positive bladder cancer: a meta-analysis.

Ja Hyeon Ku, Minyong Kang, Hyung Suk Kim, Chang Wook Jeong, Cheol Kwak, Hyeon Hoe Kim

Abstract readMeta-AnalysisReview
In one paragraph

Synthesis in BMC cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 2 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

25 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Prognostic value of lymph node ratio in laryngeal and hypopharyngeal squamous cell carcinoma: a systematic review and meta-analysis.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale · 2020
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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.

Ja Hyeon KuDepartment of Urology, Seoul National University Hospital, Seoul, Republic of Korea. kuuro70@snu.ac.kr.
Minyong KangDepartment of Urology, Seoul National University Bundang Hospital, Seongnam City, Kyeonggi-do, Republic of Korea. dr.minyong.kang@gmail.com.
Hyung Suk KimDepartment of Urology, Seoul National University Hospital, Seoul, Republic of Korea. willybimish@naver.com.
Chang Wook JeongDepartment of Urology, Seoul National University Hospital, Seoul, Republic of Korea. drboss@snuh.org.
Cheol KwakDepartment of Urology, Seoul National University Hospital, Seoul, Republic of Korea. mdrafael@snu.ac.kr.
Hyeon Hoe KimDepartment of Urology, Seoul National University Hospital, Seoul, Republic of Korea. hhkim@snu.ac.kr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough lymph node (LN) status and the LN burden determine the outcome of bladder cancer patients treated with cystectomy, compelling arguments have been made for the incorporation of LN density into the current staging system. Here, we investigate the relationship between LN density and clinical outcome in patients with LN-positive disease, following radical cystectomy for bladder cancer.

methodsPubMed, SCOPUS, the Institute for Scientific Information Web of Science, and the Cochrane Library were searched to identify relevant published literature.

resultsFourteen studies were included in the meta-analysis, with a total number of 3311 patients. Of these 14 publications, 6 studies, (533 patients), 10 studies (2966 patients), and 5 studies (1108 patients) investigated the prognostic association of LN density with disease-free survival (DFS), disease-specific survival (DSS), and overall survival (OS), respectively. The pooled hazard ratio (HR) for DFS was 1.45 (95% confidence interval [CI], 1.10-1.91) without heterogeneity (I2=0%, p=0.52). Higher LN density was significantly associated with poor DSS (pooled HR, 1.53; 95% CI, 1.23-1.89). However, significant heterogeneity was found between studies (I2=66%, p=0.002). The pooled HR for OS was statistically significant (pooled HR, 1.45; 95% CI, 1.11-1.90) without heterogeneity (I2=42%, p=0.14). The results of the Begg and Egger tests suggested that publication bias was not evident in this meta-analysis.

conclusionsThe data from this meta-analysis indicate that LN density is an independent predictor of clinical outcome in LN-positive patients. LN density may be useful in future staging systems, thus allowing better prognostic classification of LN-positive bladder cancer.

Indexed as

Lymph Node ExcisionCarcinomaDisease-Free SurvivalHumansLymphatic MetastasisLymph NodesSurvival RateUrinary Bladder Neoplasms

Identifiers

PMID26027955
PMCPMC4450458

What OpenQuestion holds

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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.