Evidence map›Paper›PMID 32124215›Full record

ArticleObesity surgery2020

Effects of Laparoscopic Sleeve Gastrectomy on Non-Alcoholic Steatohepatitis and Liver Fibrosis in Japanese Patients with Severe Obesity.

Haruka Nikai, Kazuyuki Ishida, Akira Umemura, Shigeaki Baba, Hiroyuki Nitta, Tamotsu Sugai, Akira Sasaki

Abstract read
PubMed Publisher
In one paragraph

Article in Obesity surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 pooled it
2.2field-weighted citation impact, top 12% 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

18 citing papers in PubMed, 3 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Guideline
  4. Article
  5. Article
  6. Impact of sleeve gastrectomy on the course of metabolic associated fatty liver disease.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2026
    Observational
  7. Article
  8. Article
  9. Rising in level of liver biomarkers after different types of bariatric surgery; is there any concern?Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2026
    Article
  10. Article
  11. Foregut bypassHepatobiliary surgery and nutrition · 2023
    Article
  12. Article
  13. Comparative effectiveness of medical treatmentHepatobiliary surgery and nutrition · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
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

7 authors at 1 institution in 1 country.

Haruka NikaiDepartment of Surgery, Iwate Medical University, 2-1-1 Idaidori, Yahaba, Shiwa, 028-3695, Japan.
Kazuyuki IshidaDepartment of Pathology, Iwate Medical University, 2-1-1 Idaidori, Yahaba, Shiwa, 028-3695, Japan.
Akira UmemuraDepartment of Surgery, Iwate Medical University, 2-1-1 Idaidori, Yahaba, Shiwa, 028-3695, Japan.
Shigeaki BabaDepartment of Surgery, Iwate Medical University, 2-1-1 Idaidori, Yahaba, Shiwa, 028-3695, Japan.
Hiroyuki NittaDepartment of Surgery, Iwate Medical University, 2-1-1 Idaidori, Yahaba, Shiwa, 028-3695, Japan.
Tamotsu SugaiDepartment of Pathology, Iwate Medical University, 2-1-1 Idaidori, Yahaba, Shiwa, 028-3695, Japan.
Akira SasakiDepartment of Surgery, Iwate Medical University, 2-1-1 Idaidori, Yahaba, Shiwa, 028-3695, Japan. sakira@iwate-med.ac.jp.ORCID http://orcid.org/0000-0002-1346-5312
Iwate Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe prevalence of non-alcoholic steatohepatitis (NASH) in Japanese patients with severe obesity is extremely high. The aim of the present study was to evaluate the metabolic and histological effects of laparoscopic sleeve gastrectomy (LSG) on NASH and liver fibrosis in Japanese patients with severe obesity.

methodsBetween June 2008 and March 2019, all 79 patients with severe obesity who underwent LSG were included in the study. Sixty-eight patients had an intraoperative liver biopsy performed at the time of LSG. Ultrasound-guided liver biopsies were performed in patients with fibrosis at 12 months after LSG.

resultsNASH was present in 43 patients (63.2%), and 10 patients had a unique feature in which their fibrosis were observed without steatosis at the time of LSG. Of the 28 patients with NASH, 25 showed improvement and no longer met the diagnostic criteria of NASH at 12 months after LSG. Mean pericellular fibrosis scores showed significant improvement from 1.62 at baseline, to 1.50, 1.00, and 0.78, respectively (p < 0.001). Univariate analysis of the preoperative predictors in the improvement of fibrosis showed significant effects in preoperative weight (p = 0.037), HbA1c (p = 0.037), and serum insulin (p = 0.037). Multivariate analysis revealed HbA1c to be the only preoperative predictor of improvement in fibrosis (p = 0.004; odds ratio 0.440, 95% CI 0.229-0.842).

conclusionsLSG has great potential as an effective treatment for patients with NASH.

Indexed as

LaparoscopyNon-alcoholic Fatty Liver DiseaseObesity, MorbidGastrectomyHumansJapanLiver CirrhosisTreatment OutcomeBariatric surgeryLaparoscopic sleeve gastrectomyMorbid obesityNon-alcoholic steatohepatitis

Identifiers

PMID32124215
OpenAlexW3010390091

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.