Hepatic hilum variations and their clinical considerations in the liver: a systematic review and meta-analysis

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dc.contributor.authorValenzuela Fuenzalida, Juan José
dc.contributor.authorPena Santibañez, Fernanda
dc.contributor.authorVergara Salinas, Ayline
dc.contributor.authorMeneses Caroca, Trinidad
dc.contributor.authorRojo Gonzalez, Javiera
dc.contributor.authorOrellana-Donoso, Mathias
dc.contributor.authorNova Baeza, Pablo
dc.contributor.authorSuazo Santibañez, Alejandra
dc.contributor.authorSuazo Santibañez, Juan
dc.contributor.authorGutierrez Espinoza, Héctor
dc.date.accessioned2025-03-19T19:20:36Z
dc.date.available2025-03-19T19:20:36Z
dc.date.issued2024-05-18
dc.description.abstractBackground: The liver has a region called the hepatic hilum (HH) where structures enter and exit: anteriorly, the left and right hepatic ducts; posteriorly, the portal vein; and between these, the left and right hepatic arteries. The objective of this review is to know how variants in structures of the hepatic hilum are associated with clinical alterations of the liver. Methods: The databases Medline, Scopus, Web of Science, Google Scholar, CINAHL, and LILACS were researched until January 2024. The methodological quality was evaluated with an assurance tool for anatomical studies (AQUA). The pooled prevalence was estimated using a random effects model. Results: A total of six studies met the selection criteria established in this study for meta-analysis. The prevalence of hepatic hilus variants was 9% (CI = 5% to 13%), and the heterogeneity was 83%. The other studies were analyzed descriptively and with their respective clinical considerations in the presence of the variant, such as the high incidence of the Michels type III variant; among the portal vein variants, the type III variant of the Cheng classification stands out and in biliary anatomy, and the IIIa variant stands out according to the Choi classification. Conclusions: This review allowed us to know in detail the anatomical variants of HH; the structure with which the greatest care should be taken is the hepatic artery because of the probability of metastatic processes due to increased blood distribution in the hepatic lobules. Finally, we believe that new anatomical and clinical studies are needed to improve our knowledge of the relationship between HH variants and liver alterations or surgeries.
dc.identifier.citationLife, Vol. 14, N°10, 1301 (2024) p. 1-22
dc.identifier.doihttps://doi.org/10.3390/life14101301
dc.identifier.issne2075-1729
dc.identifier.orcidhttps://orcid.org/0000-0002-1781-062X
dc.identifier.urihttp://hdl.handle.net/20.500.12254/4066
dc.language.isoen
dc.publisherMDPI
dc.rightsAtribución-NoComercial-CompartirIgual 3.0 Chile (CC BY-NC-SA 3.0 CL)
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/cl/
dc.subjectHepatic hilum
dc.subjectLiver hilum
dc.subjectClinical anatomy
dc.subjectAnatomical variants
dc.titleHepatic hilum variations and their clinical considerations in the liver: a systematic review and meta-analysis
dc.typeArticle
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