Evidence map›Paper›PMID 27645473›Full record

SynthesisEuropean 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 Surgery2017

The incidence and risk factors for central lymph node metastasis in cN0 papillary thyroid microcarcinoma: a meta-analysis.

Liang-Sen Liu, Jia Liang, Jun-Hong Li, Xue Liu, Li Jiang, Jian-Xiong Long, Yue-Ming Jiang, Zhi-Xiao Wei

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis 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, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 3 pooled it
4.7field-weighted citation impact, top 5% 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

60 citing papers in PubMed, 3 syntheses or guidelines pooled it, 103 citations in OpenAlex.

  1. Guideline
  2. [A Meta-analysis of risk factors related to the lymph nodes posterior to the right recurrent laryngeal nerve in thyroid micropapillary carcinoma].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2021
    Pooled it
  3. Pooled it
  4. Randomized trial of prophylactic ipsilateral central lymph node dissection in patients with clinically node negative papillary thyroid microcarcinoma.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
    Trial
  5. Article
  6. Active surveillance in thyroid cancer: a paradigm shift requiring critical appraisal and caution.European journal of nuclear medicine and molecular imaging · 2026
    Article
  7. Article
  8. Article
  9. Review
  10. Predictive analysis ofOncology letters · 2026
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Current evidence and strategies for preventing tumor recurrence following thermal ablation of papillary thyroid carcinoma.Cancer imaging : the official publication of the International Cancer Imaging Society · 2025
    Review
  17. Observational
  18. Article
  19. Article
  20. 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

8 authors at 2 institutions in 1 country.

Liang-Sen LiuDepartment of Nuclear Medicine, First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, Guangxi, China.
Jia LiangSchool of Basic Medicine, Guangxi Medical University, Nanning, Guangxi, China.
Jun-Hong LiDepartment of Nuclear Medicine, First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, Guangxi, China.
Xue LiuDepartment of Nuclear Medicine, First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, Guangxi, China.
Li JiangDepartment of Radiotherapy, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
Jian-Xiong LongSchool of Public Health, Guangxi Medical University, Nanning, Guangxi, China.
Yue-Ming JiangSchool of Public Health, Guangxi Medical University, Nanning, Guangxi, China.
Zhi-Xiao WeiDepartment of Nuclear Medicine, First Affiliated Hospital of Guangxi Medical University, No. 6, Shuangyong Road, Nanning, 530021, Guangxi, China. weizhixiao196493@126.com.
First Affiliated Hospital of GuangXi Medical University · CNGuangxi Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although there have been many studies identifying clinical and pathologic factors that may predict central lymph node metastases (CLNM) in papillary thyroid microcarcinoma (PTMC) patients without clinically cervical lymph node metastasis (cN0), the results were inconsistent. And whether prophylactic central lymph node dissection (pCLND) should be performed in cN0 PTMC remains controversial. The EMBASE, PubMed, MEDLINE and the Cochrane Library were searched until Oct 2015 to identify relevant studies. Primary outcomes were clinical and pathologic factors for CLNM. Secondary outcomes included CLNM rate, surgical complications of hypocalcaemia and recurrent laryngeal nerve(RLN) injury and neck recurrences. Statistical analysis was performed using Stata 12.0. Fourteen eligible studies enrolling 4573 patients were included in this meta-analysis. The overall incidence of CLNM was 33 % (95 % CI 29-37). An elevated risk of CLNM was significantly associated with male gender (OR 2.33, 95 % CI 1.71-3.17), age <45 years (OR 1.27, 95 % CI 1.08-1.48), tumor size >5 mm (OR 2.16, 95 % CI 1.87-2.50), multifocality (OR 1.73, 95 % CI 1.45-2.05), extrathyroidal extension (OR 1.99, 95 % CI 1.66-2.37) and lymphovascular invasion (OR 3.87, 95 % CI 1.64-9.10), but not with thyroid bilaterality (OR 1.41, 95 % CI 0.89-2.22) and chronic lymphocytic thyroiditis (OR 0.98, 95 % CI 0.66-1.47). The pooled frequency of permanent hypocalcaemia, permanent RLN injury and neck recurrences was 1.1, 0.5 and 2.8 %, respectively. cN0 PTMC patients have a considerable CLNM rate and have a low pooled incident of surgical complications and neck recurrences with pCLND. Six unfavorable clinical and pathologic factors, which were significantly associated with CLNM, were identified. These findings may help guide the application of pCLND or subsequent treatment in cN0 PTMC.

Indexed as

Carcinoma, PapillaryHumansHypocalcemiaIncidenceLymphatic MetastasisNeck DissectionNeoplasm Recurrence, LocalPostoperative ComplicationsRecurrent Laryngeal Nerve InjuriesRisk FactorsSex FactorsThyroid NeoplasmsCentral lymph node metastasisMeta-analysisPapillary thyroid microcarcinomaRisk factors

Identifiers

PMID27645473
OpenAlexW2522174981

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.