Evidence map›Paper›PMID 28628565›Full record

ArticleAnnals of surgery2018

Open versus Laparoscopic Surgery for Advanced Low Rectal Cancer: A Large, Multicenter, Propensity Score Matched Cohort Study in Japan.

Koya Hida, Ryosuke Okamura, Yoshiharu Sakai, Tsuyoshi Konishi, Tomonori Akagi, Tomohiro Yamaguchi, Takashi Akiyoshi, Meiki Fukuda, Seiichiro Yamamoto, Michio Yamamoto and 6 more

Open access · hybridAbstract readComparative StudyMulticenter Study
In one paragraph

Article in Annals of surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 4 pooled it
3.8field-weighted citation impact, top 5% 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

69 citing papers in PubMed, 4 syntheses or guidelines pooled it, 118 citations in OpenAlex.

  1. Effect of home-based exercise prehabilitation on postoperative outcomes in colorectal cancer surgery: a systematic review and meta-analysis.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2024
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Trial
  6. Trial
  7. Trial
  8. Article
  9. Article
  10. Article
  11. Review
  12. Observational
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

9 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

16 authors at 8 institutions in 1 country.

Koya HidaDepartment of Surgery, Kyoto University Hospital, Kyoto.
Ryosuke OkamuraDepartment of Surgery, Kyoto University Hospital, Kyoto.
Yoshiharu SakaiDepartment of Surgery, Kyoto University Hospital, Kyoto.
Tsuyoshi KonishiDepartment of Gastroenterological Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo.
Tomonori AkagiDepartment of Surgery, Oita University, Faculty of Medicine, Oita.
Tomohiro YamaguchiDivision of Colon and Rectal Surgery, Shizuoka Cancer Center Hospital, Shizuoka.
Takashi AkiyoshiDepartment of Gastroenterological Surgery, Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo.
Meiki FukudaDepartment of Surgery, Osaka Red Cross Hospital, Osaka.
Seiichiro YamamotoDepartment of Surgery, Hiratsuka Municipal Hospital, Hiratsuka.
Michio YamamotoInstitute for Advancement of Clinical and Translational Science, Kyoto University Hospital.
Tatsuto NishigoriDepartment of Surgery, Kyoto University Hospital, Kyoto.
Kenji KawadaDepartment of Surgery, Kyoto University Hospital, Kyoto.
Suguru HasegawaDepartment of Surgery, Fukuoka University Hospital, Fukuoka.
Satoshi MoritaInstitute for Advancement of Clinical and Translational Science, Kyoto University Hospital.
Masahiko WatanabeDepartment of Surgery, Kitasato University, Sagamihara, Japan.
Japan Society of Laparoscopic Colorectal Surgery
Kyoto University Hospital · JPJapanese Foundation For Cancer Research · JPFukuoka University Hospital · JPHiratsuka City Hospital · JPKitasato University · JPOita University · JPOsaka Red Cross Hospital · JPShizuoka Cancer Center · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLaparoscopic surgery for rectal cancer is widely performed all over the world and several randomized controlled trials have been reported. However, the usefulness of laparoscopic surgery compared with open surgery has not been demonstrated sufficiently, especially for the low rectal area.

objectiveThe aim of this study was to investigate the hypothesis that laparoscopic primary tumor resection is safe and effective when compared with the open approach for locally advanced low rectal cancer. PATIENTS AND

methodsData from patients with clinical stage II to III low rectal cancer below the peritoneal reflection were collected and analyzed. The operations were performed from 2010 to 2011. Short-term outcomes and long-term prognosis were analyzed with propensity score matching.

resultsOf 1608 cases collated from 69 institutes, 1500 cases were eligible for analysis. The cases were matched into 482 laparoscopic and 482 open cases. The mean height of the tumor from the anal verge was 4.6 cm. Preoperative treatment was performed in 35% of the patients. The conversion rate from laparoscopic to open surgery was 5.2%. Estimated blood loss during laparoscopic surgery was significantly less than that during open surgery (90 vs 625 mL, P < 0.001). Overall, the occurrence of complications after laparoscopic surgeries was less than that after open surgeries (30.3% vs 39.2%, P = 0.005). Three-year overall survival rates were 89.9% [95% confidence interval (95% CI) 86.7-92.4] and 90.4% (95% CI 87.4-92.8) in the laparoscopic and open groups, respectively, and no significant difference was seen between the 2 groups. No significant difference was observed in recurrence-free survival (RFS) between the 2 groups (3-year RFS: 70.9%, 68.4 to 74.2 vs 71.8%, 67.5 to 75.7).

conclusionLaparoscopic surgery could be considered as a treatment option for advanced, low rectal cancer below the peritoneal reflection, based on the short-term and long-term results of this large cohort study (UMIN-ID: UMIN000013919).

Indexed as

LaparoscopyAdultAgedFemaleFollow-Up StudiesHumansJapanMaleMiddle AgedNeoplasm StagingProctectomyPropensity ScoreRectal NeoplasmsRetrospective StudiesSurvival AnalysisTreatment Outcome

Identifiers

PMID28628565
PMCPMC6092102
OpenAlexW2667147770

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.