Evidence map›Paper›PMID 28686640›Full record

ArticlePloS one2017

Learning curve for laparoscopic Heller myotomy and Dor fundoplication for achalasia.

Fumiaki Yano, Nobuo Omura, Kazuto Tsuboi, Masato Hoshino, Seryung Yamamoto, Shunsuke Akimoto, Takahiro Masuda, Hideyuki Kashiwagi, Katsuhiko Yanaga

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Peroral endoscopic myotomy compared to laparoscopic Heller myotomy and pneumatic dilation in the treatment of achalasia: a systematic review.Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus · 2024
    Pooled it
  2. Trial
  3. Article
  4. Observational
  5. Article
  6. Article
  7. Laparoscopic Revisional Surgery After Failed Heller Myotomy for Esophageal Achalasia: Long-Term Outcome at a Single Tertiary Center.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2021
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. A Thousand and One Laparoscopic Heller Myotomies for Esophageal Achalasia: a 25-Year Experience at a Single Tertiary Center.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2019
    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.

Fumiaki YanoFrom the Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan.ORCID http://orcid.org/0000-0001-6682-4166
Nobuo OmuraFrom the Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan.
Kazuto TsuboiFrom the Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan.
Masato HoshinoFrom the Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan.
Seryung YamamotoFrom the Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan.
Shunsuke AkimotoFrom the Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan.
Takahiro MasudaFrom the Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan.
Hideyuki KashiwagiFrom the Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan.
Katsuhiko YanagaFrom the Department of Surgery, The Jikei University School of Medicine, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAlthough laparoscopic Heller myotomy and Dor fundoplication (LHD) is widely performed to address achalasia, little is known about the learning curve for this technique. We assessed the learning curve for performing LHD.

methodsOf the 514 cases with LHD performed between August 1994 and March 2016, the surgical outcomes of 463 cases were evaluated after excluding 50 cases with reduced port surgery and one case with the simultaneous performance of laparoscopic distal partial gastrectomy. A receiver operating characteristic (ROC) curve analysis was used to identify the cut-off value for the number of surgical experiences necessary to become proficient with LHD, which was defined as the completion of the learning curve.

resultsWe defined the completion of the learning curve when the following 3 conditions were satisfied. 1) The operation time was less than 165 minutes. 2) There was no blood loss. 3) There was no intraoperative complication. In order to establish the appropriate number of surgical experiences required to complete the learning curve, the cut-off value was evaluated by using a ROC curve (AUC 0.717, p < 0.001). Finally, we identified the cut-off value as 16 surgical cases (sensitivity 0.706, specificity 0.646).

conclusionLearning curve seems to complete after performing 16 cases.

Indexed as

AdultEsophageal AchalasiaFemaleFundoplicationHumansIntraoperative ComplicationsLaparoscopyLaparotomyLearning CurveMaleMiddle AgedMusclesOperative TimeROC CurveTendonsTreatment Outcome

Identifiers

PMID28686640
PMCPMC5501549

What OpenQuestion holds

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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.