Evidence map›Paper›PMID 32875413›Full record

ArticleSurgical endoscopy2021

Short- and long-term outcomes of laparoscopic versus open lateral lymph node dissection for locally advanced middle/lower rectal cancer using a propensity score-matched analysis.

Jun Watanabe, Atsushi Ishibe, Yusuke Suwa, Mayumi Ozawa, Kazuya Nakagawa, Hirokazu Suwa, Mitsuyoshi Ota, Chikara Kunisaki, Itaru Endo

Abstract read
PubMed Publisher
In one paragraph

Article in Surgical endoscopy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.8field-weighted citation impact, top 26% 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

9 citing papers in PubMed, 14 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

9 authors at 3 institutions in 1 country.

Jun WatanabeDepartment of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 4-57, Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan. nabe-jun@comet.ocn.ne.jp.ORCID http://orcid.org/0000-0002-7187-3664
Atsushi IshibeDepartment of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
Yusuke SuwaDepartment of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 4-57, Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan.
Mayumi OzawaDepartment of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
Kazuya NakagawaDepartment of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
Hirokazu SuwaDepartment of Surgery, Yokosuka Kyosai Hospital, Yokosuka, Japan.
Mitsuyoshi OtaDepartment of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 4-57, Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan.
Chikara KunisakiDepartment of Surgery, Gastroenterological Center, Yokohama City University Medical Center, 4-57, Urafune-cho, Minami-ku, Yokohama, 232-0024, Japan.
Itaru EndoDepartment of Gastroenterological Surgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
Yokohama City University · JPYokohama City University Medical Center · JPYokosuka Kyosai Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere are few reports on large-scale trials for the long-term outcomes regarding laparoscopic lateral lymph node dissection (LLND). We evaluated the short- and long-term outcomes of laparoscopic versus open LLND for locally advanced middle/lower rectal cancer using a propensity score-matched analysis.

methodsFrom January 2005 to December 2016, consecutive clinical stage II to III middle/lower rectal cancer patients who underwent total mesorectal excision (TME) plus LLND were retrospectively collected at three institutions. Laparoscopic LLND was compared with open LLND for the surgical and oncological outcomes, including the long-term survival, using a propensity score-matched analysis.

resultsA total of 325 patients were collected. There were 142 patients who underwent open TME plus LLND (open group) and 183 patients who underwent laparoscopic TME plus LLND (laparoscopic group). A total of 93 patients each were matched to each group. Compared to the open group, the laparoscopic group had a significantly longer operative time (327 vs. 377 min; p = 0.002) but significantly less blood loss (540 vs. 50 ml; p < 0.001), fewer Clavian-Dindo grade ≥ 2 postoperative complications (49.5% vs. 34.4%; p = 0.037) and shorter postoperative hospital stay (18 vs. 14 days; p = 0.008). Furthermore, the rate of urinary retention was significantly lower in the laparoscopic group than in the open group (16.1% vs. 6.5%; p = 0.037). The estimated 3-year overall survival, relapse-free survival, and cumulative incidence of local recurrence were 91.4%, 73.1%, and 3.4% in the open group and 90.3%, 74.2%, and 4.3% in the laparoscopic group (p = 0.879, 0.893, 0.999), respectively.

conclusionsThis study showed that laparoscopic LLND had advantages over an open approach, such as less blood loss, fewer postoperative complications, and a shorter postoperative hospital stay, and the oncologic outcomes were similar to the open approach. Laparoscopic LLND could be a viable standard approach to LLND for advanced middle/lower rectal cancer surgery.

Indexed as

LaparoscopyRectal NeoplasmsHumansLymph Node ExcisionLymph NodesNeoplasm Recurrence, LocalPropensity ScoreRetrospective StudiesTreatment OutcomeLaparoscopic surgeryLateral lymph node dissectionLateral pelvic lymph nodeLong-term outcomeRectal cancer

Identifiers

PMID32875413
OpenAlexW3082669869

What OpenQuestion holds

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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.