Evidence map›Paper›PMID 31912338›Full record

ArticleSurgery today2020

Lymph node retrieval after colorectal cancer surgery: a comparative study of the efficacy between the conventional manual method and a new fat dissolution method.

Yuki Fujieda, Hiromichi Maeda, Koji Oba, Ken Okamoto, Ian Fukudome, Mai Shiga, Yasuhiro Kawanishi, Toyokazu Akimori, Hajime Kuroiwa, Hiroyuki Nishimoto and 4 more

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Surgery today, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 45% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. 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

14 authors at 3 institutions in 1 country.

Yuki FujiedaDepartment of Surgery, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan.
Hiromichi MaedaDepartment of Surgery, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan. hmaeda@kochi-u.ac.jp.
Koji ObaDepartment of Biostatistics, Graduated School of Medicine, The University of Tokyo, Tokyo, Japan.
Ken OkamotoDepartment of Surgery, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan.
Ian FukudomeDepartment of Surgery, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan.
Mai ShigaDepartment of Surgery, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan.
Yasuhiro KawanishiDepartment of Surgery, Hata-Kenmin Hospital, Sukumo, Kochi, Japan.
Toyokazu AkimoriDepartment of Surgery, Hata-Kenmin Hospital, Sukumo, Kochi, Japan.
Hajime KuroiwaIntegrated Center for Advanced Medical Technologies (ICAM-Tech), Kochi Medical School, Nankoku, Kochi, Japan.
Hiroyuki NishimotoIntegrated Center for Advanced Medical Technologies (ICAM-Tech), Kochi Medical School, Nankoku, Kochi, Japan.
Tsutomu NamikawaDepartment of Surgery, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan.
Ichiro MurakamiDepartment of Diagnostic Pathology, Kochi Medical School, Kochi University, Nankoku, Kochi, Japan.
Michiya KobayashiDepartment of Surgery, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan.
Kazuhiro HanazakiDepartment of Surgery, Kochi Medical School, Kochi University, Kohasu, Oko-cho, Nankoku, Kochi, 783-8505, Japan.
Kōchi University · JPKochi Medical School Hospital · JPThe University of Tokyo · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study compared the efficacy of two different methods for lymph node (LN) searching after colorectal cancer surgery: the fat dissolution and the conventional manual method.

methodsFor the fat dissolution method, we used a commercially available solution of collagenase and lipase (FD group). The primary endpoint was the number of identified LNs in the FD group compared to an historical control (control group) after adjusting by propensity score matching.

resultsUsing 37 matched patients from each group, we identified 20.6 ± 7.2 LNs using the fat dissolution method compared to 13.5 ± 5.9 using the conventional method (t test, P < 0.01). Three patients in the FD group received an inappropriate LN examination in terms of number, while the number of the retrieved LNs was < 12 in 12 patients in the control group. The mean diameter of LNs without metastasis was 3.2 ± 1.9 mm in the FD group, and 40% of metastasis cases were found in LNs < 5 mm in diameter. A pathological examination confirmed that using the fat resolution method did not change the morphological or immunochemical staining findings.

conclusionWe demonstrated that fat dissolution had a positive impact on the number of retrieved LNs after colorectal cancer surgery without disturbing the microscopic observation.

Indexed as

Colorectal NeoplasmsHumansMicroscopySentinel Lymph Node BiopsyCollagenaseCRCFat dissolutionLNsMesentery

Identifiers

PMID31912338
OpenAlexW2998576892

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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.