Evidence map›Paper›PMID 33569726›Full record

ArticleSurgical endoscopy2022

Impact of non-liver-related previous abdominal surgery on the difficulty of minimally invasive liver resections: a propensity score-matched controlled study.

Yvette Chong, Ye-Xin Koh, Jin-Yao Teo, Peng-Chung Cheow, Pierce K Chow, Alexander Y Chung, Chung-Yip Chan, Brian K P Goh

Abstract read
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In one paragraph

Article in Surgical endoscopy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.6field-weighted citation impact, top 31% 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

1 citing paper in PubMed, 5 citations in OpenAlex.

  1. Advances in minimally invasive liver surgery.Northern clinics of Istanbul · 2024
    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

8 authors at 2 institutions in 1 country.

Yvette ChongDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Ye-Xin KohDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Jin-Yao TeoDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Peng-Chung CheowDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Pierce K ChowDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Alexander Y ChungDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Chung-Yip ChanDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore.
Brian K P GohDepartment of Hepatopancreatobiliary and Transplant Surgery, Singapore General Hospital, Level 5, 20 College Road, Academia, Singapore, 169856, Singapore. bsgkp@hotmail.com.ORCID 0000-0001-8218-4576
National University of Singapore · SGSingapore General Hospital · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe presence of previous abdominal surgery (PAS) has traditionally been considered to add difficulty to and increase risk of complications of laparoscopic procedures. This study aims to analyse the impact of non-liver-related PAS on the difficulty of minimally invasive liver resections (MILRs). MATERIALS AND

methodsAfter exclusion of patients with concomitant major surgical procedures as well as previous liver resections, 515 consecutive patients undergoing MILR in Singapore General Hospital from 2006 to 2019 were analysed, consisting of 161 MILR in patients with previous abdominal surgery (WPAS) and 354 MILR in patients without previous abdominal surgery (WOPAS). Propensity score-matched (PSM) comparison was performed between WPAS and WOPAS groups. In addition, subgroup analysis was made comparing previous upper or lower abdominal surgery and open versus minimally invasive approach of PAS. Outcomes measured include those associated with operative difficulty such as open conversion rates, operative time, blood loss, as well as morbidity and mortality rates.

resultsMILR outcomes in patients WPAS are not inferior to those WOPAS. Overall open conversion rate was 8.2%, higher in patients WOPAS compared to patients WPAS (11.9% versus 3.5%, p = 0.015). Operating time (p = 0.942), blood loss (p = 0.063), intraoperative blood transfusion (p = 0.750), length of hospital stay (p = 0.206), morbidity (p = 0.217) and 30- and 90-day mortality (p = 1 & p = 0.367) were comparable between the two groups and subgroup analysis.

conclusionOutcomes of MILR in patients with previous non-liver-related abdominal surgery are not inferior to patients without previous abdominal surgery.

Indexed as

LaparoscopyLiver NeoplasmsHepatectomyHumansLength of StayMinimally Invasive Surgical ProceduresOperative TimePostoperative ComplicationsPropensity ScoreRetrospective StudiesCirrhosisDifficulty scoreLaparoscopic hepatectomyLaparoscopic liverMinimally invasive hepatectomyMinimally invasive liver

Identifiers

PMID33569726
OpenAlexW3129106420

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.