Evidence map›Paper›PMID 28857809›Full record

ArticleAnnals of surgery2019

Learning Curve and Associated Morbidity of Minimally Invasive Esophagectomy: A Retrospective Multicenter Study.

Frans van Workum, Marianne H B C Stenstra, Gijs H K Berkelmans, Annelijn E Slaman, Mark I van Berge Henegouwen, Suzanne S Gisbertz, Frits J H van den Wildenberg, Fatih Polat, Tomoyuki Irino, Magnus Nilsson and 6 more

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in Annals of surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 125 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
125citing papers in PubMed, 6 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

125 citing papers in PubMed, 6 syntheses or guidelines pooled it.

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  5. Totally minimally invasive esophagectomy versus hybrid minimally invasive esophagectomy: systematic review and meta-analysis.Diseases of the esophagus : official journal of the International Society for Diseases of the Esophagus · 2020
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  8. Implementation of Minimally Invasive Esophagectomy From a Randomized Controlled Trial Setting to National Practice.Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2020
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65 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors.

Frans van WorkumDepartment of Surgery, Radboudumc, Nijmegen, the Netherlands.
Marianne H B C StenstraDepartment of Surgery, Radboudumc, Nijmegen, the Netherlands.
Gijs H K BerkelmansDepartment of Surgery, Catharina Hospital, Eindhoven, the Netherlands.
Annelijn E SlamanDepartment of Surgery, Academic Medical Center, Amsterdam, the Netherlands.
Mark I van Berge HenegouwenDepartment of Surgery, Academic Medical Center, Amsterdam, the Netherlands.
Suzanne S GisbertzDepartment of Surgery, Academic Medical Center, Amsterdam, the Netherlands.
Frits J H van den WildenbergDepartment of Surgery, Canisius-Wilhelmina Hospital, Nijmegen, the Netherlands.
Fatih PolatDepartment of Surgery, Canisius-Wilhelmina Hospital, Nijmegen, the Netherlands.
Tomoyuki IrinoDivision of Surgery, Karolinska institutet and Center for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden.
Magnus NilssonDivision of Surgery, Karolinska institutet and Center for Digestive Diseases, Karolinska University Hospital, Stockholm, Sweden.
Grard A P NieuwenhuijzenDepartment of Surgery, Catharina Hospital, Eindhoven, the Netherlands.
Misha D LuyerDepartment of Surgery, Catharina Hospital, Eindhoven, the Netherlands.
Eddy M AdangDepartment of Health Evidence, Radboudumc, Nijmegen, the Netherlands.
Gerjon HanninkDepartment of Orthopedic Research, Radboudumc, Nijmegen, the Netherlands.
Maroeska M RoversDepartments of Health Evidence and Operating Rooms, Radboudumc, Nijmegen, the Netherlands.
Camiel RosmanDepartment of Surgery, Radboudumc, Nijmegen, the Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the morbidity that is associated with the learning curve of minimally invasive esophagectomy.

backgroundAlthough learning curves have been described, it is currently unknown how much extra morbidity is associated with the learning curve of technically challenging surgical procedures.

methodsProspectively collected data were retrospectively analyzed of all consecutive patients undergoing minimally invasive Ivor Lewis esophagectomy in 4 European expert centers. The primary outcome parameter was anastomotic leakage. Secondary outcome parameters were operative time and textbook outcome ("optimal outcome"). Learning curves were plotted using weighted moving average and CUSUM analysis was used to determine after how many cases the plateau was reached. Learning associated morbidity was calculated with area under the curve analysis.

resultsThis study included 646 patients. Three of the 4 hospitals reached the plateau of 8% anastomotic leakage. The length of the learning curve was 119 cases. The mean incidence of anastomotic leakage decreased from 18.8% during the learning phase to 4.5% after the plateau had been reached (P < 0.001). Thirty-six extra patients (10.1% of all patients operated on during the learning curve) experienced learning associated anastomotic leakage, that could have been avoided if patients were operated by surgeons who had completed the learning curve. The incidence of textbook outcome increased from 28% to 53% and the mean operative time decreased from 344 minutes to 270 minutes.

conclusionsA considerable number of 36 extra patients (10.1%) experienced learning associated anastomotic leakage. More research is urgently needed to investigate how learning associated morbidity can be reduced to increase patient safety during learning curves.

Indexed as

Learning CurveAgedClinical CompetenceEducation, Medical, GraduateEsophageal NeoplasmsEsophagectomyFemaleHumansMaleMiddle AgedMinimally Invasive Surgical ProceduresMorbidityNetherlandsOperative TimePostoperative ComplicationsRetrospective Studies

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Registered trials

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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.