Evidence map›Paper›PMID 28337382›Full record

ArticleAmerican journal of cancer research2017

A new T staging system for nasopharyngeal carcinoma based on intensity-modulated radiation therapy: results from a prospective multicentric clinical study.

Min Kang, Pingting Zhou, Tingting Wei, Tingting Zhao, Jianxiong Long, Guisheng Li, Haolin Yan, Guosheng Feng, Meilian Liu, Jinxian Zhu and 1 more

Abstract read
In one paragraph

Article in American journal of cancer research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

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

  1. Pooled it
  2. New T staging recommendations for recurrent nasopharyngeal carcinoma.Journal of cancer research and clinical oncology · 2024
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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

11 authors.

Min KangDepartment of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University Nanning 530021, Guangxi, P. R. China.
Pingting ZhouDepartment of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University Nanning 530021, Guangxi, P. R. China.
Tingting WeiDepartment of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University Nanning 530021, Guangxi, P. R. China.
Tingting ZhaoDepartment of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University Nanning 530021, Guangxi, P. R. China.
Jianxiong LongSchool of Public Health, Guangxi Medical University Nanning 530021, Guangxi, P. R. China.
Guisheng LiDepartment of Radiation Oncology, Liuzhou Worker Hospital Liuzhou 545000, Guangxi, P. R. China.
Haolin YanDepartment of Radiation Oncology, First People's Hospital of Yulin City Yulin 537000, Guangxi, P. R. China.
Guosheng FengDepartment of Radiation Oncology, People's Hospital of Guangxi Zhuang Autonomous Region Nanning 530021, Guangxi, P. R. China.
Meilian LiuDepartment of Radiation Oncology, Affiliated Hospital of Guilin Medical University Guilin 541000, Guangxi, P. R. China.
Jinxian ZhuDepartment of Radiation Oncology, Wuzhou Red Cross Hospital Wuzhou 543000, Guangxi, P. R. China.
Rensheng WangDepartment of Radiation Oncology, The First Affiliated Hospital of Guangxi Medical University Nanning 530021, Guangxi, P. R. China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis prospective multicentric study aimed to establish a new clinical T staging standard for nasopharyngeal carcinoma (NPC) based on intensity-modulated radiotherapy (IMRT). METHODS AND MATERIALS: Between January 2006 and December 2009, four hundred and ninety-two NPC patients undergoing IMRT were staged according to the seventh edition of the UICC/AJCC staging system. The Kaplan-Meier method was used to calculate survival rates, and the log-rank test was used to compare survival differences.

resultsThe 5-year overall survival (OS), disease-free survival (DFS), recurrence-free survival (RFS), and distant metastasis-free survival (DMSF) rates were 80.5%, 78.6%, 94.1%, and 84.3%, respectively. Univariate and multivariate analyses showed that the invasion of the nasal cavity, parapharyngeal space, oropharynx, skull base, internal pterygoid muscle, external pterygoid muscle, paranasal sinus, infratemporal fossa, orbit, cranial nerves, cavernous sinus, and intracalvarium were independent prognostic factors (P<0.05). According to the results of risk variety and survival curves, we suggest that the new T staging system for NPC based on magnetic resonance imaging and intensity modulated radiation therapy can be classified as T1 (nasopharynx, nasal cavity, parapharyngeal space, oropharynx, skull base and internal pterygoid muscle) and T2 (external pterygoid muscle, paranasal sinus, infratemporal fossa, orbit, cranial nerves, cavernous sinus and intracalvarium). Compared to the seventh edition of UICC/AJCC staging system, our new recommended staging system performs better in risk difference and distribution balance. Furthermore, the differences between the substages of 5-year curves of LRFS, DMFS and OS were all statistically significant in our new recommended staging system.

conclusionsOur new recommended staging system is more adaptable to IMRT and can predict the prognosis of NPC patient in a more objective and accurate manner.

Indexed as

intensity modulated radiation therapymagnetic resonance imagingNasopharyngeal carcinomaprognosisT staging

Identifiers

PMID28337382
PMCPMC5336507

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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.