Evidence map›Paper›PMID 33219937›Full record

SynthesisUpdates in surgery2021

Meta-analysis of laparoscopic versus open liver resection for intrahepatic cholangiocarcinoma.

Nikolaos Machairas, Ioannis D Kostakis, Dimitrios Schizas, Stylianos Kykalos, Nikolaos Nikiteas, Georgios C Sotiropoulos

Abstract readComparative StudyMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Updates in surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 2 pooled it
5.9field-weighted citation impact, top 3% 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

25 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
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  6. Article
  7. RoboticHeliyon · 2024
    Article
  8. Lymph Node Dissection in Intrahepatic Cholangiocarcinoma: a Critical and Updated Review of the Literature.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
    Review
  9. Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Review
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  17. Review
  18. Review
  19. Review
  20. State-of-the-art surgery for hepatocellular carcinoma.Langenbeck's archives of surgery · 2021
    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 2 institutions in 2 countries.

Nikolaos Machairas *2nd Department of Propaedeutic Surgery, Laiko General Hospital, National and Kapodistrian University of Athens Medical School, 17 Agiou Thoma Street, 11527, Athens, Greece. nmachair@gmail.com.ORCID http://orcid.org/0000-0003-3239-3905
Ioannis D Kostakis *Department of HPB Surgery and Liver Transplant, Royal Free Hospital, Royal Free London NHS Foundation Trust, London, UK.
Dimitrios Schizas1st Department of Surgery, National and Kapodistrian University of Athens, Athens, Greece.
Stylianos Kykalos2nd Department of Propaedeutic Surgery, Laiko General Hospital, National and Kapodistrian University of Athens Medical School, 17 Agiou Thoma Street, 11527, Athens, Greece.
Nikolaos Nikiteas2nd Department of Propaedeutic Surgery, Laiko General Hospital, National and Kapodistrian University of Athens Medical School, 17 Agiou Thoma Street, 11527, Athens, Greece.
Georgios C Sotiropoulos2nd Department of Propaedeutic Surgery, Laiko General Hospital, National and Kapodistrian University of Athens Medical School, 17 Agiou Thoma Street, 11527, Athens, Greece.
National and Kapodistrian University of Athens · GRRoyal Free London NHS Foundation Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intrahepatic cholangiocarcinoma (iCCA) is a rare and aggressive hepatic malignancy. An up-to-date systematic review and meta-analysis was conducted aiming to compare outcomes between laparoscopic (LLR) and open liver resection (OLR) for patients with iCCA. A systematic literature search of Medline, Scopus, Google Scholar, and Cochrane databases was performed. A total of 8 studies comprising 2872 patients, who underwent LLR or OLR for iCCA, were included in our meta-analysis. LLR patients had smaller tumors [mean difference (MD): - 1.17 cm, 95% confidence intervals (CI) - 1.77 to - 0.57, p = 0.0001], underwent major resections less frequently [risk ratio (RR): 0.75, 95% CI 0.67-0.83, p < 0.00001] and R0 resections more frequently (RR: 1.05, 95% CI 1.01-1.09, p = 0.01), while lymphadenectomy was less common in the laparoscopic group (RR: 0.73, 95% CI 0.58-0.92, p = 0.007). The LLR group presented reduced blood loss (MD: - 270.16 ml, 95% CI - 381.53 to - 32.79, p = 0.002), need for transfusion (RR: 0.39, 95% CI 0.21-0.73, p = 0.003), overall morbidity (RR: 0.58, 95% CI 0.4-0.83, p = 0.003) and hospital stay (MD: - 3.48 days, 95% CI: - 6.94 to - 0.02, p = 0.05) compared to the OLR group. No differences were shown in operative time (MD: 1.6 min, 95% CI - 34.17-37.37, p = 0.93), major morbidity (RR: 0.65, 95% CI 0.38-1.11, p = 0.12), mortality (RR: 1.42, 95% CI 0.13-15.07, p = 0.77), overall (HR: 0.9, 95% CI 0.59-1.38, p = 0.63) and relapse-free survival (HR: 0.77, 95% CI 0.5-1.16, p = 0.21) between the two groups. LLR seems to benefit patients with iCCA in terms of short-term outcomes, whilst long-term outcomes are comparable among the two approaches.

Indexed as

Bile Duct NeoplasmsBlood Loss, SurgicalCholangiocarcinomaFemaleHepatectomyHumansLaparoscopyLength of StayLiverLymph Node ExcisionMaleOperative TimeTreatment OutcomeIntrahepatic cholangiocarcinomaLaparoscopic liver resectionMinimally invasiveRecurrenceSurvival

Identifiers

PMID33219937
OpenAlexW3099639269

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.