Evidence map›Paper›PMID 38557445›Full record

ArticleAnnals of surgery2024

Long-term survival and functional outcomes of laparoscopic surgery for clinical stage I ultra-low rectal cancers located within 5 cm of the anal verge: A prospective phase II trial (Ultimate trial).

Masaaki Ito, Yuichiro Tsukada, Jun Watanabe, Yosuke Fukunaga, Yasumitsu Hirano, Kazuhiro Sakamoto, Hiroki Hamamoto, Masanori Yoshimitsu, Hisanaga Horie, Nobuhisa Matsuhashi and 18 more

Open access · hybridAbstract read
In one paragraph

Article in Annals of surgery, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
5.7field-weighted citation impact, top 4% 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

10 citing papers in PubMed, 10 citations in OpenAlex.

  1. Trial
  2. A multicentre prospective study of anal function after laparoscopic ultra-low rectal cancer surgery using a mixed-effects model.Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland · 2025
    Trial
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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

28 authors at 17 institutions in 1 country.

Masaaki ItoDepartment of Colorectal Surgery, National Cancer Center Hospital East, Chiba, Japan.
Yuichiro TsukadaDepartment of Colorectal Surgery, National Cancer Center Hospital East, Chiba, Japan.
Jun WatanabeDepartment of Surgery, Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan.
Yosuke FukunagaDepartment of Gastroenterological Surgery, Cancer Institute Hospital, Japanese Foundation of Cancer Research, Tokyo, Japan.
Yasumitsu HiranoDivision of Gastroenterological Surgery, Saitama Medical University International Medical Center, Hidaka, Japan.
Kazuhiro SakamotoDepartment of Coloproctological Surgery, Juntendo University Faculty of Medicine, Tokyo, Japan.
Hiroki HamamotoDepartment of General and Gastroenterological Surgery, Osaka Medical and Pharmaceutical University, Osaka, Japan.
Masanori YoshimitsuDepartment of Surgery, Hiroshima City North Medical Center Asa Citizens Hospital, Hiroshima, Japan.
Hisanaga HorieDepartment of Surgery, Jichi Medical University, Tochigi, Japan.
Nobuhisa MatsuhashiDepartment of Gastroenterological Surgery, Pediatric Surgery, Gifu University, Graduate School of Medicine.
Yoshiaki KuriuDepartment of Surgery, Kyoto Prefectural University of Medicine.
Shuntaro NagaiDepartment of Surgery and Oncology, Graduate School of Medical Sciences, Kyushu University.
Madoka HamadaDepartment of Gastrointestinal Surgery Kansai Medical University Hospital.
Shinichi YoshiokaDepartment of Surgery, Yao Municipal Hospital, Osaka, Japan.
Shinobu OhnumaDepartment of Surgery, Tohoku University Hospital, Sendai, Japan.
Tamuro HayamaDepartment of Surgery, Teikyo University School of Medicine.
Koki OtsukaDepartment of Surgery, Iwate Medical University School of Medicine, Shiwa, Iwate, Japan.
Yusuke InoueDepartment of Surgery, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Kazuki UedaDivision of Endoscopic & Colorectal Surgery, Department of Surgery, Kindai University Faculty of Medicine, Osaka, Japan.
Yuji ToiyamaDepartment of Gastrointestinal and Pediatric Surgery Mie University.
Satoshi MaruyamaDepartment of Gastroenterological Surgery, Niitaga Cancer Center Hospital, Niigata, Japan.
Shigeki YamaguchiDivision of Colorectal Surgery, Department of Surgery, Tokyo Women's Medical University.
Keitaro TanakaDepartment of General and Gastroenterological Surgery, Osaka Medical and Pharmaceutical University, Osaka, Japan.
Motoko SuzukiDepartment of Data Science, National Cancer Center Hospital East, Kashiwa, Chiba, Japan.
Takeshi NaitohDepartment of Lower Gastrointestinal Surgery, Kitasato University School of Medicine, Kanagawa, Japan.
Koji AndoDepartment of Colorectal Surgery, National Cancer Center Hospital East, Chiba, Japan.
Masahiko WatanabeDepartment of Surgery, Kitasato University Kitasato Institute Hospital, Minato City, Tokyo, Japan.
Ultimate Trial Group
Juntendo University · JPNational Cancer Center Hospital East · JPYokohama City University Medical Center · JPHiroshima City Asa Citizens Hospital · JPJapanese Foundation For Cancer Research · JPOsaka University of Pharmaceutical Sciences · JPSaitama Medical University · JPGifu University · JPJichi Medical University · JPKindai University · JPKitasato Institute Hospital · JPKyoto Prefectural University of Medicine · JPNagasaki University · JPNiigata Cancer Center Hospital · JPNorth Medical Center · JPOtsu Municipal Hospital · JPTeikyo University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo clarify the long-term oncological outcomes and postoperative anal, urinary, and sexual functions after laparoscopic surgery for clinical stage I very low rectal carcinoma located near the anal canal. SUMMARY BACKGROUND DATA: Laparoscopic surgery is widely applied for rectal cancer; however, concerns remain, with some studies showing poorer outcomes compared to open surgery.

methodsThis single-arm, phase II trial included patients registered preoperatively from 47 institutions in Japan. The planned sample size was 300. The primary endpoint was the 3-year local recurrence rate. Anal, urinary, and sexual functions were evaluated using a prospective questionnaire.

resultsThree-hundred patients were registered between January 2014 and March 2017. Anus-preserving surgery was performed in 278 (93%), including 172 who underwent intersphincteric resection (58%) and 106 (36%) who underwent low anterior resection. The 3-year cumulative local recurrence rate was 6.3%. At 3 years postoperatively, 87% of patients used their own anus, and the median incontinence score improved from 12 at 3 months to 8 at 3 years. Only 5% of patients had severe incontinence (incontinence score of 16 points). Postoperative urinary function evaluation showed that International Prostate Symptom Score and Overactive Bladder Symptom Score decreased 1 week after surgery, but recovered to preoperative level 1 month after surgery. International Consultation on Incontinence Questionnaire-Sort Form remained almost stable after surgery. Sexual function evaluation using the International Index of Erectile Function-5 and International Index of Erectile Function-15 revealed that the patients had deteriorated 3 months after surgery but had recovered only slightly by 6 months.

conclusionsLaparoscopic surgery achieves feasible long-term oncological outcomes and a high rate of anus preservation with moderate anal function, and an acceptable incontinence score. While urinary function recovered rapidly, sexual function showed poor recovery.

Identifiers

PMID38557445
PMCPMC11723497
OpenAlexW4393381044

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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.