Evidence map›Paper›PMID 20020091›Full record

SynthesisDer Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen2010

[Survival, mortality and quality of life after pylorus-preserving or classical Whipple operation. A systematic review with meta-analysis].

C Fitzmaurice, C M Seiler, M W Büchler, M K Diener

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Der Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.9field-weighted citation impact, top 24% 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

11 citing papers in PubMed, 14 citations in OpenAlex.

  1. Patient expectations about the oncologic benefit of pancreatectomy for pancreatic ductal adenocarcinoma.HPB : the official journal of the International Hepato Pancreato Biliary Association · 2025
    Article
  2. Cholangiocarcinoma.Nature reviews. Disease primers · 2021
    Review
  3. Article
  4. Article
  5. Article
  6. Pylorus preservation pancreatectomy or not.Translational gastroenterology and hepatology · 2017
    Review
  7. Evidence-Based Surgical Treatments for Chronic Pancreatitis.Deutsches Arzteblatt international · 2016
    Review
  8. Article
  9. Review
  10. Review
  11. [Contribution of the Study Center of the German Surgical Society to evidence based surgery].Der Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen · 2011
    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

4 authors at 2 institutions in 2 countries.

C FitzmauriceStudienzentrum der Deutschen Gesellschaft für Chirurgie, Heidelberg.
C M Seiler
M W Büchler
M K Diener
University Hospital Heidelberg · DEJohns Hopkins University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTwo surgical procedures are mainly performed for the treatment of pancreatic head cancer and periampullary carcinoma: the classical Whipple operation and the pylorus-preserving Whipple operation.

methodsThis manuscript represents an extension of a systematic review and meta-analysis previously published in the Annals of Surgery. A systematic literature search was performed in MEDLINE, EMBASE and the Cochrane Library (central) to identify randomized controlled trials (RCTs) and observational studies. A meta-analysis based on a random-effects model was performed for the hazard ratios (HR) of survival and the odds ratios (OR) of postoperative mortality. The results of the different studies on quality of life (QoL) could not be summarized quantitatively in a meta-analysis and were therefore summarized qualitatively. Subgroup analyses were performed by study type, RCTs, prospective cohort studies (PSs), retrospective cohort studies (RSs), study quality and tumor localization (pancreatic head cancer versus periampullary carcinoma).

resultsThe systematic literature search retrieved 4,503 studies of which 4,460 did not fulfill the inclusion criteria. The remaining 43 studies (6 RCTs, 12 PSs and 25 RSs) representing 3,893 patients were finally included in the review. There was neither a significant survival difference for patients with pancreatic head cancer in the pooled estimate of the RCTs (HR 0.80; 95% CI 0.53-1.22; p=0.16) nor in the pooled estimate of the PSs (HR 0.84; 95% CI 0.7-1.0; p=0.95) or the RSs (HR 0.84; 95% CI 0.7-1.01; p=0.21). Survival of patients with periampullary carcinoma was not significantly different in the RCTs (HR 1.02; 95% CI 0.49-2.13; p=0.3), the PSs (HR 1.26; 95% CI 0.46-3.42; p=0.65) or the RSs (HR 0.86; 95% CI 0.6-1.24; p=0.33). Postoperative mortality was not significantly different after both types of operations (RCTs: HR 0.49; 95% CI 0.17-1.4; p=0.18; PSs: HR 0.63; 95% CI 0.34-1.18; p=0.15; RSs: HR 0.7; 95% CI 0.37-1.31; p=0.27). QoL was reported as either the same in both groups or in favor of the pylorus-preserving Whipple operation.

conclusionsMortality, survival and QoL were not significantly different between the classical Whipple and the pylorus-preserving Whipple operations. Given the poor quality of the underlying trials a pragmatic RCT is recommended to prove the findings of this systematic review.

Indexed as

Common Bile Duct NeoplasmsHumansPancreatic NeoplasmsPancreaticoduodenectomyPostoperative ComplicationsPyloric AntrumQuality of LifeRandomized Controlled Trials as TopicSurvival Rate

Identifiers

PMID20020091
OpenAlexW1555242173

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.