Evidence map›Paper›PMID 21191689›Full record

SynthesisSurgery today2011

Laparoscopic hepatectomy: a systematic review, meta-analysis, and power analysis.

Toru Mizuguchi, Masaki Kawamoto, Makoto Meguro, Toshihito Shibata, Yukio Nakamura, Yasutoshi Kimura, Tomohisa Furuhata, Tomoko Sonoda, Koichi Hirata

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Surgery today, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 7 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

30 citing papers in PubMed, 7 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. No difference in clinical outcomes after total knee arthroplasty between patellar eversion and non-eversion.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016
    Pooled it
  5. Pooled it
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  8. Review
  9. Article
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  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Laparoscopic liver resection: Experience based guidelines.World journal of gastrointestinal surgery · 2016
    Review
  19. Laparoscopic surgery: A qualified systematic review.World journal of methodology · 2015
    Article
  20. Perspective of laparoscopic liver resection for hepatocellular carcinoma.World journal of gastrointestinal surgery · 2015
    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

9 authors.

Toru MizuguchiDepartment of Surgery I, Sapporo Medical University, S-1, W-16, Chuo-ku, Sapporo, Hokkaido 060-8543, Japan.
Masaki Kawamoto
Makoto Meguro
Toshihito Shibata
Yukio Nakamura
Yasutoshi Kimura
Tomohisa Furuhata
Tomoko Sonoda
Koichi Hirata

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeA previous meta-analysis study demonstrated that bleeding and the duration of the hospital stay following laparoscopic hepatectomy (Lap) were significantly smaller and shorter, respectively, than for patients undergoing an open approach (Op). The aim of the present study was to re-evaluate perioperative variables and adverse outcomes in patients undergoing Lap versus (vs) Op after 2000.

methodsA PubMed and Ovid Medline search identified clinical studies that compared the outcomes of Lap vs Op patients after 2000. A meta-analysis and power analysis were performed.

resultsOperative time was not significantly different between the two approaches (95% confidence interval [CI]: -0.063 to 0.992). Patient bleeding in the Lap group was significantly lower than in the Op group (95% CI: -1.027 to -0.390). Complications with Lap patients were significantly less frequent (95% CI: 0.231-0.642), and the duration of the hospital stay for Lap patients was significantly shorter (95% CI: -0.950 to -0.530) than for Op patients. Only one paper presented 80% power with 0.05 α-errors in all four outcomes, whereas four studies did not have sufficient statistical power.

conclusionsThe clinical benefits of Lap include a smaller incidence of complications and a shorter duration of hospital stay at the current time. Several studies had too few cases to sufficiently evaluate these factors, although other studies were appropriately analyzed.

Indexed as

HepatectomyLaparoscopyPostoperative ComplicationsHumansLiver DiseasesTreatment Outcome

Identifiers

PMID21191689

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.