Evidence map›Paper›PMID 28917012›Full record

ArticleSurgical endoscopy2018

Operative and short-term oncologic outcomes of laparoscopic versus open liver resection for colorectal liver metastases located in the posterosuperior liver: a propensity score matching analysis.

Masayuki Okuno, Claire Goumard, Takashi Mizuno, Kiyohiko Omichi, Ching-Wei D Tzeng, Yun Shin Chun, Thomas A Aloia, Jason B Fleming, Jeffrey E Lee, Jean-Nicolas Vauthey and 1 more

Abstract readComparative Study
In one paragraph

Article in Surgical endoscopy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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

25 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
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  3. Economic analysis of open versus laparoscopic versus robotic hepatectomy: a systematic review and meta-analysis.The European journal of health economics : HEPAC : health economics in prevention and care · 2021
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  7. Impact of liver cirrhosis and portal hypertension on minimally invasive limited liver resection for primary liver malignancies in the posterosuperior segments: An international multicenter study.European journal of surgical oncology : the journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology · 2023
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  18. Laparoscopic versus open liver resections of posterolateral liver segments - a systematic review and meta-analysis.Wideochirurgia i inne techniki maloinwazyjne = Videosurgery and other miniinvasive techniques · 2020
    Article
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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

11 authors.

Masayuki OkunoDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, FCT17.5046, Houston, TX, 77030, USA.
Claire GoumardDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, FCT17.5046, Houston, TX, 77030, USA.
Takashi MizunoDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, FCT17.5046, Houston, TX, 77030, USA.
Kiyohiko OmichiDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, FCT17.5046, Houston, TX, 77030, USA.
Ching-Wei D TzengDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, FCT17.5046, Houston, TX, 77030, USA.
Yun Shin ChunDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, FCT17.5046, Houston, TX, 77030, USA.
Thomas A AloiaDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, FCT17.5046, Houston, TX, 77030, USA.
Jason B FlemingDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, FCT17.5046, Houston, TX, 77030, USA.
Jeffrey E LeeDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, FCT17.5046, Houston, TX, 77030, USA.
Jean-Nicolas VautheyDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, FCT17.5046, Houston, TX, 77030, USA.
Claudius ConradDepartment of Surgical Oncology, The University of Texas MD Anderson Cancer Center, 1400 Pressler, Unit 1484, FCT17.5046, Houston, TX, 77030, USA. cconrad1@mdanderson.org.

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
NCI NIH HHS P30 CA016672
6 · The paper itself

Abstract

backgroundLaparoscopic resection (LLR) of colorectal liver metastases (CRLM) located in the posterosuperior liver (segments 4a, 7, and 8) is challenging but has become more practical recently due to progress in operative techniques. We aimed to compare tumor-specific, perioperative, and short-term oncological outcomes after LLR and open liver resection (OLR) for CRLM.

methodsPatients who underwent curative resection of CRLM with at least 1 tumor in the posterosuperior liver during 2012-2015 were analyzed. Tumor-specific factors associated with the adoption of LLR were analyzed by logistic regression model. One-to-one propensity score matching was used to match baseline characteristics between patients with LLR and OLR.

resultsThe original cohort included 30 patients with LLR and 239 with OLR. Median follow-up time was 23.8 months. Logistic regression analysis showed that multiple, diameter ≥30 mm, deep location, and closeness to major vessels were associated with OLR. None of the 24 patients with none or one of these factors were converted from LLR to OLR. After matching, 29 patients with LLR and 29 with OLR were analyzed. The 2 groups had similar preoperative factors. The LLR and OLR groups did not differ with respect to operative time, intraoperative bleeding, incidence of blood transfusion, surgical margin positivity, incidence of postoperative complications, and unplanned readmission within 45 days. Median length of postoperative hospital stay was significantly shorter for LLR versus OLR (4 days [1-12] vs. 5 days [4-18]; p = 0.0003). Median recurrence-free survival was similar for patients who underwent LLR versus OLR (10.6 months for LLR vs. 13.4 months for OLR; p = 0.87).

conclusionsCompared to OLR, LLR of posterosuperior CRLM is associated with significantly shorter postoperative hospital stay but otherwise similar perioperative and short-term oncological outcomes. Tumor-specific factors associated with safe and routine LLR approach despite challenging location are superficial, solitary, and small (<30 mm) CRLM not associated with major vessels.

Indexed as

HepatectomyLaparoscopyPropensity ScoreAdultAgedColorectal NeoplasmsFemaleHumansLiver NeoplasmsMaleMiddle AgedTreatment OutcomeColorectal liver metastasisLaparoscopic hepatectomyPosterosuperior segment

Identifiers

PMID28917012
PMCPMC5845466

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Registered trials

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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.