Evidence map›Paper›PMID 42257944›Full record

ArticleSurgical endoscopy2026

Early clinical impact of mesenteric Kocherization in robotic pancreaticoduodenectomy: a propensity score-matched comparative study.

Kohei Mishima, Junichiro Kawamoto, Minoru Kitago, Yutaka Nakano, Masayuki Tanaka, Shutaro Hori, Yasushi Hasegawa, Yuta Abe, Yuko Kitagawa

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
–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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Kohei MishimaDepartment of Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan. mishima0930@gmail.com.ORCID http://orcid.org/0000-0003-4284-2989
Junichiro KawamotoDepartment of Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.
Minoru KitagoDepartment of Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.
Yutaka NakanoDepartment of Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.
Masayuki TanakaDepartment of Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.
Shutaro HoriDepartment of Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.
Yasushi HasegawaDepartment of Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.
Yuta AbeDepartment of Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.
Yuko KitagawaDepartment of Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough robotic pancreaticoduodenectomy (RPD) offers several technical advantages, prolonged operative time remains a major clinical challenge. Mesenteric Kocherization (MK) has recently been introduced as a technical modification for mobilizing the duodenum and pancreatic head during RPD. The present study evaluated the early clinical impact of MK on operative efficiency and perioperative outcomes.

methodsWe retrospectively reviewed 56 consecutive patients who underwent totally robotic pancreaticoduodenectomy between July 2021 and June 2025. Conventional Kocherization (CK) was performed in 36 patients and MK in 20 patients. The primary outcome was total operative time. Secondary outcomes included console time, Kocherization time, estimated blood loss, transfusion, harvested lymph nodes, R0 resection rate, major postoperative complications (Clavien-Dindo ≥ IIIa), time to first oral intake, and 90-day unplanned readmission rate. To reduce selection bias, propensity score matching was performed using a 1:2 allocation (MK:CK).

resultsIn the full cohort, operative time tended to be shorter in the MK group than in the CK group (560 [516-598] vs. 592 [556-667] min; p = 0.057). Kocherization time was significantly shorter with MK (28 [27-36] vs. 50 [40-58] min; p < 0.001), while estimated blood loss was comparable (p = 0.875). After propensity score matching (MK n = 11; CK n = 22), MK was associated with significantly shorter total operative time (533 [511-575] vs. 580 [557-611] min; p = 0.031) and Kocherization time (28 [24-30] vs. 49 [43-55] min; p < 0.001). Blood loss, R0 resection rate, and major postoperative complications were comparable between groups.

conclusionsMesenteric Kocherization was associated with improved operative efficiency in RPD, primarily through shortening the resection phase of the procedure while maintaining perioperative safety.

Indexed as

MesenteryPancreaticoduodenectomyRobotic Surgical ProceduresAgedBlood Loss, SurgicalFemaleHumansMaleMiddle AgedOperative TimePostoperative ComplicationsPropensity ScoreRetrospective StudiesKocher maneuverMesenteric KocherizationOperative timePropensity score matchingRobotic pancreaticoduodenectomy

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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.