Evidence map›Paper›PMID 33718114›Full record

SynthesisFrontiers in oncology2020

A Meta-Analysis of Risk Factors for Transient and Permanent Hypocalcemia After Total Thyroidectomy.

Yuan Qin, Wei Sun, Zhihong Wang, Wenwu Dong, Liang He, Ting Zhang, Hao Zhang

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Frontiers in oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 2 pooled it
10.2field-weighted citation impact, top 1% 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

39 citing papers in PubMed, 2 syntheses or guidelines pooled it, 74 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. The effect of reminder mobile application use on medication adherence after total thyroidectomy: a randomized controlled trial.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2026
    Trial
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Ionized calcium and PTH as predictors of hypoparathyroidism following total thyroidectomy.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 · 2025
    Article
  14. Article
  15. Article
  16. Effect of Histamine-2 Receptor Antagonists on Hypocalcemia after Thyroidectomy: A Retrospective Cohort Study and Sensitivity Analysis.Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery · 2025
    Article
  17. Impact of thyroid volume on serum ionized calcium and PTH levels after total thyroidectomy.Sao Paulo medical journal = Revista paulista de medicina · 2025
    Observational
  18. Article
  19. Article
  20. Review
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

7 authors at 2 institutions in 1 country.

Yuan QinDepartment of Thyroid Surgery, The First Hospital of China Medical University, Shenyang, China.
Wei SunDepartment of Thyroid Surgery, The First Hospital of China Medical University, Shenyang, China.
Zhihong WangDepartment of Thyroid Surgery, The First Hospital of China Medical University, Shenyang, China.
Wenwu DongDepartment of Thyroid Surgery, The First Hospital of China Medical University, Shenyang, China.
Liang HeDepartment of Thyroid Surgery, The First Hospital of China Medical University, Shenyang, China.
Ting ZhangDepartment of Thyroid Surgery, The First Hospital of China Medical University, Shenyang, China.
Hao ZhangDepartment of Thyroid Surgery, The First Hospital of China Medical University, Shenyang, China.
China Medical University · CNFirst Hospital of China Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAs hypocalcemia is the most common complication of total thyroidectomy, identifying its risk factors should guide prevention and management. The purpose of this study was to determine the risk factors for postthyroidectomy hypocalcemia.

methodsWe searched PubMed, Web of Science and EMBASE through January 31, 2019, and assessed study quality using the Newcastle-Ottawa Scale.

resultsFifty studies with 22,940 patients met the inclusion criteria, of which 24.92% (5716/22,940) had transient hypocalcemia and 1.96% (232/11,808) had permanent hypocalcemia. Significant (

conclusionImportant risk factors for transient and permanent hypocalcemia were identified. However, given the limited sample size and heterogeneity of this meta-analysis, further studies are required to confirm our preliminary findings.

Indexed as

meta-analysispermanent hypocalcemiarisk factorstotal thyroidectomytransient hypocalcemia

Identifiers

PMID33718114
PMCPMC7943836
OpenAlexW3129406046

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.