Evidence map›Paper›PMID 27553791›Full record

Observational studySurgical endoscopy2017

Learning curve for single-port laparoscopic colon cancer resection: a multicenter observational study.

Chang Woo Kim, Kil Yeon Lee, Sang Chul Lee, Suk-Hwan Lee, Yoon Suk Lee, Sang Woo Lim, Jun-Gi Kim

Abstract readMulticenter StudyObservational Study
PubMed Publisher
In one paragraph

Observational study in Surgical endoscopy, 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
1.3field-weighted citation impact, top 19% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

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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

7 authors at 6 institutions in 1 country.

Chang Woo KimDepartment of Surgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, 892, Dongnam-ro, Gangdong-gu, Seoul, 05278, Korea.
Kil Yeon LeeDepartment of Surgery, Kyung Hee Medical Center, Kyung Hee University School of Medicine, Seoul, Korea.
Sang Chul LeeDepartment of Surgery, Daejeon St. Mary's Hospital, The Catholic University of Korea, Daejeon, Korea.
Suk-Hwan LeeDepartment of Surgery, Kyung Hee University Hospital at Gangdong, Kyung Hee University School of Medicine, 892, Dongnam-ro, Gangdong-gu, Seoul, 05278, Korea. leeshdr@gmail.com.ORCID 0000-0001-6470-8620
Yoon Suk LeeDepartment of Surgery, Incheon St. Mary's Hospital, The Catholic University of Korea, Incheon, Korea.
Sang Woo LimDepartment of Surgery, Hallym University Medical Center, Hallym University College of Medicine, Anyang, Korea.
Jun-Gi KimDepartment of Surgery, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea.
The Catholic University of Korea Daejeon St. Mary's Hospital · KRHallym University Medical Center · KRKyung Hee University Hospital at Gangdong · KRKyung Hee University Medical Center · KRThe Catholic University of Korea Incheon St. Mary's Hospital · KRThe Catholic University of Korea Seoul St. Mary's Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of this study was to investigate the learning curves (LCs) of single-port laparoscopic surgery (SPLS) for colon cancer using multidimensional statistical analyses. Although SPLS yields better cosmetic results and comparable short-term outcomes compared to conventional laparoscopic surgery, its technical difficulties make surgeons hesitant to try SPLS. Moreover, the LCs of SPLS for colon cancer are not well delineated.

methodsData were collected from patients who underwent SPLS for colon cancer in seven Korean institutions between May 2009 and May 2015. The LCs were analyzed using the moving average method and the cumulative sum control chart (CUSUM) for operation time and surgical failure. Surgical failure was defined as the any conversion, postoperative complications, or less than 12 harvested lymph nodes from surgical specimens.

resultsA total of 356 patients were included in this study. Six and three surgeons performed 282 anterior resections (ARs) and 74 right colectomies (RCs), respectively. On the basis of the moving average method and CUSUM for operation time and surgical failure, the LCs for AR were 18, 16, 35, 13, 36, and 13 cases for surgeons A-F, respectively. However, the LCs for RC were 6 and 15 cases for surgeons D and E, respectively, and were ambiguous for one surgeon.

conclusionsFor surgeons experienced in conventional laparoscopic colorectal surgery, the LCs of SPLS for colon cancer ranged from 6 to 36 cases, which is shorter than the LCs reported for conventional laparoscopic surgery.

Indexed as

Learning CurveAdenocarcinomaAdultAgedAged, 80 and overColectomyColonic NeoplasmsFemaleHumansLaparoscopyMaleMiddle AgedOperative TimeRetrospective StudiesTreatment OutcomeColon cancerCUSUMLearning curveMoving averageSingle-port laparoscopic surgerySingle-port surgery

Identifiers

PMID27553791
OpenAlexW2512972173

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.