Evidence map›Paper›PMID 32297053›Full record

Trial reportSurgical endoscopy2021

Safety and effectiveness of high ligation of the inferior mesenteric artery for cancer of the descending colon under indocyanine green fluorescence imaging: a pilot study.

Taro Munechika, Ryuji Kajitani, Yoshiko Matsumoto, Hideki Nagano, Akira Komono, Naoya Aisu, Mitsuaki Morimoto, Gumpei Yoshimatsu, Yoichiro Yoshida, Suguru Hasegawa

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Surgical endoscopy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 pooled it
1.3field-weighted citation impact, top 18% 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

13 citing papers in PubMed, 3 syntheses or guidelines pooled it, 27 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

10 authors at 2 institutions in 1 country.

Taro MunechikaDepartment of Gastroenterological Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Ryuji KajitaniDepartment of Gastroenterological Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Yoshiko MatsumotoDepartment of Gastroenterological Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Hideki NaganoDepartment of Gastroenterological Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Akira KomonoDepartment of Gastroenterological Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Naoya AisuDepartment of Gastroenterological Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Mitsuaki MorimotoDepartment of Gastroenterological Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Gumpei YoshimatsuDepartment of Regenerative and Transplant Medicine, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Yoichiro YoshidaDepartment of Gastroenterological Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
Suguru HasegawaDepartment of Gastroenterological Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan. shase@fukuoka-u.ac.jp.
Fukuoka University · JPFukuoka University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundComplete mesocolic excision with central vascular ligation is a standard advanced technique for achieving favorable long-term oncological outcomes in colon cancer surgery. Clinical evidence abounds demonstrating the safety of high ligation of the inferior mesenteric artery (IMA) for sigmoid colon cancer but is scarce for descending colon cancer. A major concern is the blood supply to the remnant distal sigmoid colon, especially for cases with a long sigmoid colon. We sought to clarify the safety and feasibility of high ligation of the IMA in surgery for descending colon cancer using indocyanine green (ICG) fluorescence imaging.

methodsIn this prospective single-center pilot study, we examined 20 patients with descending colon cancer who underwent laparoscopic colectomy between April 2018 and September 2019. Following full mobilization and division of the proximal colonic mesentery, we temporarily clamped the root of the IMA and performed ICG fluorescence imaging of the blood flow to the sigmoid colon. The postoperative anastomosis-related complications (primary endpoint) and length of viable remnant colon, and the number of lymph nodes retrieved (secondary endpoints) were evaluated and compared with historical controls who underwent conventional IMA-preserving surgery (n = 20).

resultsBlood flow reached 40 (17-66) cm retrograde from the peritoneal reflection, even after IMA clamping. Accordingly, IMA high ligation was performed in all cases. No anastomotic anastomosis-related complications occurred in each group. Retrieved total lymph nodes were higher in number in the ICG-guided group than in the conventional group (p = 0.035). Specifically, more principal nodes were retrieved in the ICG-guided group, compared with the conventional group (p = 0.023). However, the distal margin was not as long compared with the conventional group.

conclusionWe demonstrated the safety and feasibility of high ligation of the IMA for descending colon cancer without sacrificing additional distal colon using fluorescence evaluation of blood flow in the remnant colon.

Indexed as

Optical ImagingAgedAged, 80 and overAnastomosis, SurgicalColectomyColon, DescendingColonic NeoplasmsFemaleHumansIndocyanine GreenLigationLymph NodesMaleMesenteric Artery, InferiorMiddle AgedPilot ProjectsIndocyanine GreenCentral vascular ligation (CVL)Descending colon cancerIndocyanine green (ICG) fluorescence imaging

Identifiers

PMID32297053
OpenAlexW3016575731

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.