Evidence map›Paper›PMID 29980978›Full record

SynthesisJournal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract2019

Effect of Delay to Operation on Outcomes in Patients with Acute Appendicitis: a Systematic Review and Meta-analysis.

Jian Li, Run Xu, Deng-Min Hu, Yao Zhang, Tu-Ping Gong, Xue-Lian Wu

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 4 pooled it
4.8field-weighted citation impact, top 4% 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

30 citing papers in PubMed, 4 syntheses or guidelines pooled it, 58 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Acute Appendicitis in Childhood and Adulthood.Deutsches Arzteblatt international · 2020
    Pooled it
  5. Article
  6. Article
  7. Article
  8. Appendicitis.Nature reviews. Disease primers · 2025
    Review
  9. Gola Khisakna as a Culture-bound Syndrome: A Case Series from India.Indian journal of psychological medicine · 2025
    Article
  10. Article
  11. Barriers to accessing appendectomy in the public sector health system in the Western Cape Province, South Africa.African journal of emergency medicine : Revue africaine de la medecine d'urgence · 2024
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Is acute appendicitis more severe in foreign workers of northern Israel? A retrospective cohort study.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2023
    Article
  17. Risk factors for postoperative morbidity, prolonged length of stay and hospital readmission after appendectomy for acute appendicitis.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2023
    Article
  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

6 authors at 1 institution in 1 country.

Jian LiDepartment of General Surgery, The Third Hospital of Mianyang, The Mental Health Center of Sichuan, No. 190 East Section of Jiannan Road, Youxian District, Sichuan, 621000, China. 654747973@qq.com.ORCID http://orcid.org/0000-0002-5807-2360
Run XuDepartment of General Surgery, The Third Hospital of Mianyang, The Mental Health Center of Sichuan, No. 190 East Section of Jiannan Road, Youxian District, Sichuan, 621000, China.
Deng-Min HuDepartment of General Surgery, The Third Hospital of Mianyang, The Mental Health Center of Sichuan, No. 190 East Section of Jiannan Road, Youxian District, Sichuan, 621000, China.
Yao ZhangDepartment of General Surgery, The Third Hospital of Mianyang, The Mental Health Center of Sichuan, No. 190 East Section of Jiannan Road, Youxian District, Sichuan, 621000, China.
Tu-Ping GongDepartment of General Surgery, The Third Hospital of Mianyang, The Mental Health Center of Sichuan, No. 190 East Section of Jiannan Road, Youxian District, Sichuan, 621000, China.
Xue-Lian WuDepartment of General Surgery, The Third Hospital of Mianyang, The Mental Health Center of Sichuan, No. 190 East Section of Jiannan Road, Youxian District, Sichuan, 621000, China.
Mianyang Third People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMany studies have investigated the association between time interval and incidence of complicated appendicitis and post-operative surgical site infection (SSI), but the results are controversial.

methodsA systematic search of the electronic databases identified studies that investigated the association of appendectomy delay with complicated appendicitis and SSI among patients with acute appendicitis. Qualitative and quantitative meta-analysis of the results was conducted.

resultsTwenty-one studies were included in the final analysis. Meta-analysis showed no significant difference in complicated appendicitis incidence between patients in the 6-12 h, > 12 and < 6 h groups (OR 1.07, 95% CI 0.89-1.30, p = 0.47; OR 1.04, 95% CI 0.88-1.22, p = 0.64). Comparison of the 6-12 h category with the < 6 h category of in-hospital delay revealed significant associations between longer in-hospital delay and increased risk of post-operative SSI (OR 1.40, 95% CI 1.11-1.77, p = 0.004). Patients in the 24-48 h category had 1.99- and 1.84-fold (p < 0.05) higher odds of developing complicated appendicitis compared to patients in the < 24 h category for pre-hospital delay and total delay, respectively (OR 1.99, 95% CI 1.35-2.94, p = 0.0006; OR 1.84, 95% CI 1.05-3.21, p = 0.03). When pre-hospital and total delay time extended to more than 48 h, the odds of risk increased 4.62- and 7.57-fold, respectively (OR 4.62, 95% CI 2.99-7.13, p < 0.00001; OR 7.57, 95% CI 6.14-9.35, p = < 0.00001).

conclusionComplicated appendicitis incidence was associated with overall elapsed time from symptom onset to admission or operation; short appendectomy in-hospital delay did not increase the risk of complicated appendicitis but was associated with a slightly increased risk of SSI. Prompt surgical intervention is warranted to avoid additional morbidity, enabling quicker recovery in this population.

Indexed as

Time-to-TreatmentAcute DiseaseAppendectomyAppendicitisGangreneHumansIncidenceRupture, SpontaneousSurgical Wound InfectionTime FactorsAcute appendicitisAppendectomyDelaySurgical site infection

Identifiers

PMID29980978
OpenAlexW2823244092

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.