Evidence map›Paper›PMID 27287894›Full record

ArticleSurgical endoscopy2017

Safely extending the indications of laparoscopic liver resection: When should we start laparoscopic major hepatectomy?

Yasushi Hasegawa, Hiroyuki Nitta, Takeshi Takahara, Hirokatsu Katagiri, Shigeaki Baba, Daiki Takeda, Kenji Makabe, Go Wakabayashi, Akira Sasaki

Abstract read
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In one paragraph

Article in Surgical endoscopy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 2 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

39 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Efficacy of Laparoscopic HepatectomyFrontiers in oncology · 2021
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  14. An Ex Situ Cadaver Liver Training Model Continuously Pressurized to Simulate Specific Skills Involved in Laparoscopic Liver Resection: the Lap-Liver Trainer.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2023
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  20. [Advantages and future perspectives of laparoscopic liver surgery].Der Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen · 2021
    Review
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.

Yasushi HasegawaDepartment of Surgery, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka City, Iwate, 020-8505, Japan. hasegawayas@yahoo.co.jp.
Hiroyuki NittaDepartment of Surgery, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka City, Iwate, 020-8505, Japan.
Takeshi TakaharaDepartment of Surgery, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka City, Iwate, 020-8505, Japan.
Hirokatsu KatagiriDepartment of Surgery, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka City, Iwate, 020-8505, Japan.
Shigeaki BabaDepartment of Surgery, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka City, Iwate, 020-8505, Japan.
Daiki TakedaDepartment of Surgery, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka City, Iwate, 020-8505, Japan.
Kenji MakabeDepartment of Surgery, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka City, Iwate, 020-8505, Japan.
Go WakabayashiDepartment of Surgery, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka City, Iwate, 020-8505, Japan.
Akira SasakiDepartment of Surgery, School of Medicine, Iwate Medical University, 19-1, Uchimaru, Morioka City, Iwate, 020-8505, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLaparoscopic major hepatectomy (LMH) is an innovative procedure that is still in the exploration phase. Although new surgical techniques have learning curves, safety should be maintained from the onset. This retrospective study was conducted to evaluate the safe introduction of LMH.

methodsWe retrospectively reviewed data from 245 consecutive patients who underwent pure laparoscopic liver resection. Patients were divided into three groups: Phase I, the first 64 cases, all minor hepatectomies; Phase II, cases from the first LMH case to the midmost of the LMH cases (n = 69, including 22 LMHs); Phase III, the most recent 112 cases, including 22 LMHs. Patient characteristics and surgical results were evaluated, and the learning curve was analysed with the cumulative sum (CUSUM) method.

resultsThe first LMH was adopted after sufficient preparatory experience was gained from performing 64 minor hepatectomies. In cases of LMH, there were no significant differences in the surgical time between Phases II and III (356 vs. 309 min; P = 0.318), morbidity rate (22.7 vs. 31.8 %; P = 0.736), or major morbidity rate (18.2 vs. 9.1 %; P = 0.664); however, estimated blood loss was significantly reduced from Phase II to Phase III (236 vs. 68 mL; P = 0.018). The CUSUM for morbidity also showed similar outcomes through Phases II and III.

conclusionThere is a learning curve associated with laparoscopic liver resection. To maintain a low morbidity rate, 60 laparoscopic minor hepatectomies could provide adequate experience before the adoption of LMH.

Indexed as

LaparoscopyLearning CurveAgedBlood Loss, SurgicalFemaleHepatectomyHumansMaleMiddle AgedOperative TimeRetrospective StudiesHepatectomyLaparoscopicLearning curveLiver resectionMajor hepatectomy

Identifiers

What OpenQuestion holds

Textmetadata
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.