Evidence map›Paper›PMID 42257969›Full record

ArticleSurgical endoscopy2026

Robotic versus laparoscopic liver resection: a propensity score-matched analysis adjusted for surgical difficulty.

Akihisa Nagatsu, Tatsuhiko Kakisaka, Shunsuke Shichi, Yuzuru Sakamoto, Sunao Fujiyoshi, Takeshi Aiyama, Norio Kawamura, Masaaki Watanabe, Ryoichi Goto, Akinobu Taketomi

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Surgical endoscopy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from it

What it found

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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

10 authors.

Akihisa NagatsuDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, North 15th West 7th, Kita-ku, Sapporo, 060-8638, Japan.
Tatsuhiko KakisakaDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, North 15th West 7th, Kita-ku, Sapporo, 060-8638, Japan. puripurikoyu@gmail.com.ORCID http://orcid.org/0000-0002-8556-5945
Shunsuke ShichiDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, North 15th West 7th, Kita-ku, Sapporo, 060-8638, Japan.
Yuzuru SakamotoDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, North 15th West 7th, Kita-ku, Sapporo, 060-8638, Japan.
Sunao FujiyoshiDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, North 15th West 7th, Kita-ku, Sapporo, 060-8638, Japan.
Takeshi AiyamaDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, North 15th West 7th, Kita-ku, Sapporo, 060-8638, Japan.
Norio KawamuraDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, North 15th West 7th, Kita-ku, Sapporo, 060-8638, Japan.
Masaaki WatanabeDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, North 15th West 7th, Kita-ku, Sapporo, 060-8638, Japan.
Ryoichi GotoDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, North 15th West 7th, Kita-ku, Sapporo, 060-8638, Japan.
Akinobu TaketomiDepartment of Gastroenterological Surgery I, Graduate School of Medicine, Hokkaido University, North 15th West 7th, Kita-ku, Sapporo, 060-8638, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRobotic liver resection has gained increasing acceptance; however, its comparative benefits over laparoscopic liver resection remain debated, particularly after adjustment for surgical difficulty. This study compared short-term outcomes between robotic and laparoscopic liver resection using propensity score matching with the IWATE difficulty score.

methodsWe retrospectively analyzed patients who underwent minimally invasive liver resection between 2016 and 2025. Patients undergoing combined resection of other organs, except cholecystectomy, were excluded. Propensity score matching was performed using age, sex, body mass index, ASA physical status, diagnosis, multiple resection, repeat hepatectomy, and IWATE difficulty score. One-to-two nearest-neighbor matching without replacement with a caliper width of 0.2 of the standard deviation of the logit of the propensity score was applied. Analyses were conducted according to the initially planned surgical approach.

resultsAfter matching, 260 patients were included (robotic: 90; laparoscopic: 170). The robotic group had a lower rate of postoperative complications (3.3 vs. 15.3%, p = 0.003) and less intraoperative blood loss, although operative time was longer (345 vs. 263 min, p < 0.001). Conversion rate, severe complications, and length of hospital stay were comparable.

conclusionsRobotic liver resection was associated with lower postoperative complication rates and reduced intraoperative blood loss despite longer operative time, suggesting potential benefit when surgical difficulty is considered.

Indexed as

HepatectomyLaparoscopyRobotic Surgical ProceduresAgedBlood Loss, SurgicalFemaleHumansLength of StayLiver NeoplasmsMaleMiddle AgedOperative TimePostoperative ComplicationsPropensity ScoreRetrospective StudiesIWATE criteriaLaparoscopic liver resectionMinimally invasive liver surgeryPropensity score matchingRobotic liver resectionSurgical difficulty

Identifiers

PMID42257969

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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.