Evidence map›Paper›PMID 24935202›Full record

Trial reportSurgical endoscopy2014

A multi-center study of using carbon nanoparticles to track lymph node metastasis in T1-2 colorectal cancer.

Jun Yan, Fangqin Xue, Hongyuan Chen, Xiufeng Wu, Hui Zhang, Gang Chen, Jianping Lu, Lisheng Cai, Gao Xiang, Zhenwei Deng and 3 more

Abstract readClinical TrialMulticenter Study
PubMed Publisher
In one paragraph

Trial report in Surgical endoscopy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 21% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

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  13. Skeleton labeledInternational journal of nanomedicine · 2017
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  15. Nanocarriers Usage for Drug Delivery in Cancer Therapy.Iranian journal of cancer prevention · 2016
    Review
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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

13 authors at 5 institutions in 1 country.

Jun YanDepartment of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, People's Republic of China, ynjun@yahoo.com.
Fangqin Xue
Hongyuan Chen
Xiufeng Wu
Hui Zhang
Gang Chen
Jianping Lu
Lisheng Cai
Gao Xiang
Zhenwei Deng
Yu Zheng
Xiaoling Zheng
Guoxin Li
Fujian Medical University · CNSouthern Medical University · CNNanfang Hospital · CNFujian Provincial Cancer Hospital · CNFujian Provincial Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHow to identify whether T1-2 colorectal cancers have lymph nodes metastases pre-op or intra-op is a crucial problem in clinic. The purpose of this study was to evaluate the feasibility of using carbon nanoparticles to track lymph nodes metastases in T1-2 colorectal cancers.

methodsA multi-center study was performed between July 2012 and January 2014. Seventy-three patients with T1-2 colorectal cancer identified by pre-op endoscopic ultrasonography (EUS) were recruited. 1 ml carbon nanoparticles suspension was endoscopically injected into the submucosal layer at four points around the site of the primary tumor 1 day before surgery. Laparoscopic radical resection with lymphadenectomy was performed. Sentinel lymph nodes (SLNs) were defined as nodes that were black-dyed by carbon nanoparticles. Pathology confirmed whether lymph nodes have cancer metastases and the SLNs accuracy.

resultsSLNs were easily found under laparoscopy. The mean number of SLNs was 3 (range 1-5). All patients had SLNs lying alongside the mesenteric vessel or main arterial vessel. After pathological analysis, 2 patients (9.52%) had lymph node metastasis in 21 patients with EUS T1 cancers, and 10 patients (19.23%) had lymph node metastasis in 52 patients with EUS T2 cancers. In two T1 cases with lymph node metastasis, SLNs were positive with 100% accuracy. In ten T2 cases with lymph node metastasis, SLNs were positive in nine cases. In pathology, carbon nanoparticles were seen in lymphatic vessels, and lymphoid sinus and macrophages in negative SLNs. When SLNs were positive, carbon nanoparticles were seen around cancer cells in lymph nodes. The overall sensitivity, specificity, accuracy of SLNs in T1-2 colorectal cancers were 91.67, 100, 98.63%, respectively.

conclusionsWe demonstrated the feasibility of using carbon nanoparticles to track lymph nodes metastases in T1-2 colorectal cancers. Carbon nanoparticles black-dyed lymph nodes play a role as SLNs in T1-2 colorectal cancers.

Indexed as

CarbonColoring AgentsNanoparticlesAdolescentAdultAgedColectomyColorectal NeoplasmsFeasibility StudiesFemaleHumansLaparoscopyLymphatic MetastasisLymph Node ExcisionLymph NodesMaleCarbonColoring Agents

Identifiers

PMID24935202
OpenAlexW2068782804

What OpenQuestion holds

Textmetadata
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.