Evidence map›Paper›PMID 30483970›Full record

ArticleSurgical endoscopy2019

The learning curve for a surgeon in robot-assisted laparoscopic pancreaticoduodenectomy: a retrospective study in a high-volume pancreatic center.

Tao Zhang, Zhi-Ming Zhao, Yuan-Xing Gao, Wan Yee Lau, Rong Liu

Abstract read
PubMed Publisher
In one paragraph

Article in Surgical endoscopy, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 9 pooled it
6.8field-weighted citation impact, top 2% 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

76 citing papers in PubMed, 9 syntheses or guidelines pooled it, 147 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Pooled it
  9. Pooled it
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Observational
  18. Article
  19. Article
  20. Article

16 more citing papers are in PubMed but not listed here.

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

5 authors at 3 institutions in 2 countries.

Tao ZhangDepartment of General Surgery, 306 Hospital of PLA, Beijing, China.
Zhi-Ming ZhaoSecond Department of Hepatobiliary Surgery, Chinese PLA General Hospital and Chinese PLA Medical School, 28 Fuxing Road, Haidian District, Beijing, 100853, China.
Yuan-Xing GaoSecond Department of Hepatobiliary Surgery, Chinese PLA General Hospital and Chinese PLA Medical School, 28 Fuxing Road, Haidian District, Beijing, 100853, China.
Wan Yee LauFaculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong Special Administrative Region, Hong Kong. josephlau@cuhk.edu.hk.
Rong LiuSecond Department of Hepatobiliary Surgery, Chinese PLA General Hospital and Chinese PLA Medical School, 28 Fuxing Road, Haidian District, Beijing, 100853, China. liurong301@126.com.ORCID 0000-0001-5170-6474
Chinese PLA General Hospital · CNChinese University of Hong Kong · HKPLA 306 Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPancreaticoduodenectomy (PD) is one of the most technically difficult abdominal operations. Recent advances have allowed surgeons to attempt PD using minimally invasive surgery techniques. This retrospective study aimed to analyze the learning curve of a single surgeon who had carried out his first 100 robot-assisted laparoscopic pancreaticoduodenectomy (RPD) in a high-volume pancreatic center.

methodsThe data on consecutive patients who underwent RPD for malignant or benign pathologies were prospectively collected and retrospectively analyzed. The data included the demographic data, operative time, estimated blood loss, postoperative length of hospital stay, morbidity rate, mortality rate, and final pathological results. The cumulative sum (CUSUM) analysis was used to identify the inflexion points which corresponded to the learning curve.

resultsBetween 2012 and 2016, 100 patients underwent RPD by a single surgeon. From the CUSUM operation time (CUSUM OT) learning curve, two distinct phases of the learning process were identified (early 40 patients and late 60 patients). The operation time (mean, 418 min vs. 317 min), hospital stay (mean, 22 days vs. 15 days), and estimated blood loss (mean, 227 ml vs. 134 ml) were significantly lower after the first 40 patients (P < 0.05). The pancreatic fistula, postoperative hemorrhage, delayed gastric emptying, and reoperation rates also decreased in the late 60 patients group (P < 0.05). Non-significant reductions were observed in the incidences of major (Clavien-Dindo Grade II or higher) morbidity, postoperative death, bile leakage, gastric fistula, wound infection, and open conversion.

conclusionsRPD was technically feasible and safe in selected patients. The learning curve was completed after 40 RPD. Further studies are required to confirm the long-term oncological outcomes of RPD.

Indexed as

Hospitals, High-VolumeLearning CurveFemaleHumansLaparoscopyLength of StayMaleMiddle AgedOperative TimePancreatic DiseasesPancreaticoduodenectomyRetrospective StudiesRobotic Surgical ProceduresSurgeonsDa VinciLearning curvePancreaticoduodenectomyRobotic surgery

Identifiers

PMID30483970
OpenAlexW2902342727

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.