Evidence map›Paper›PMID 33747594›Full record

ArticleCase reports in surgery2021

Feasibility of Right Upper Transversal Hepatectomy in the Absence of an Inferior Right Hepatic Vein: New Insights regarding This Complex Procedure.

Fabio Ferrari Makdissi, Jaime Arthur Pirola Kruger, Vagner Birk Jeismann, Paulo Herman

Open access · goldAbstract readCase Reports
In one paragraph

Article in Case reports in surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-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

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Segments 4, 7, and 8 liver resection: A case report.Annals of hepato-biliary-pancreatic surgery · 2024
    Article
  3. Article
  4. 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

4 authors at 1 institution in 1 country.

Fabio Ferrari MakdissiDigestive Surgery Division, Department of Gastroenterology, Instituto do Câncer do Estado de São Paulo (ICESP), University of São Paulo School of Medicine, Avenida Piassanguaba, 350, 04060-000 São Paulo, Brazil.ORCID https://orcid.org/0000-0001-8202-5890
Jaime Arthur Pirola KrugerDigestive Surgery Division, Department of Gastroenterology, Instituto do Câncer do Estado de São Paulo (ICESP), University of São Paulo School of Medicine, Avenida Piassanguaba, 350, 04060-000 São Paulo, Brazil.ORCID https://orcid.org/0000-0002-0169-4927
Vagner Birk JeismannDigestive Surgery Division, Department of Gastroenterology, Instituto do Câncer do Estado de São Paulo (ICESP), University of São Paulo School of Medicine, Avenida Piassanguaba, 350, 04060-000 São Paulo, Brazil.ORCID https://orcid.org/0000-0003-3785-1960
Paulo HermanDigestive Surgery Division, Department of Gastroenterology, Instituto do Câncer do Estado de São Paulo (ICESP), University of São Paulo School of Medicine, Avenida Piassanguaba, 350, 04060-000 São Paulo, Brazil.ORCID https://orcid.org/0000-0003-2859-5846
Universidade de São Paulo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRight upper transversal hepatectomy (RUTH) is defined as the removal of liver segments 7, 8, and 4A with ligature of the right and middle hepatic veins and is considered one of the most complex techniques of parenchymal-sparing hepatectomies. This procedure can be performed, without venous reconstruction, if collateral veins are present communicating within remnant liver segments to a large inferior right hepatic vein and/or to the left hepatic vein. This venous network could maintain outflow from the inferior right segments (S5, S6) to the left liver when a RUTH is performed, even in the absence of an inferior right hepatic vein. The aim of this study is to present our experience with RUTH without venous reconstruction in patients with and without the presence of an inferior right hepatic vein (IRHV).

methodsPatients submitted to RUTH for treatment of liver metastases were selected from our database. The presence of an IRHV, clinical and surgical characteristics of the patients, immediate outcomes, viability of liver segments 5 and 6, and long-term survival were analyzed.

resultsRUTH was successfully performed in four patients. In two patients, IRHV was not present, but intrahepatic communicating veins between proximal right and middle hepatic veins and left hepatic vein were present. No venous reconstructions were performed. Mild congestion of the inferior right segments occurred in the patients where there was no IRHV but no immediate, early, or late complications were observed.

conclusionsRUTH is feasible and can be performed even in the absence of an IRHV, without venous reconstruction. Some degree of congestion of the right inferior liver segments might occur when an IRHV is absent, yet this is not clinically significant when communicating veins are present. Maximum parenchyma preservation might prevent postoperative liver failure and allow repeated resections in case of hepatic recurrence.

Identifiers

PMID33747594
PMCPMC7960046
OpenAlexW3135234828

What OpenQuestion holds

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Registered trials

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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.