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Greater Impact of Living Donation Than HLA Mismatching in Short-Term Renal Allograft Survival

dc.contributor.authorRibeiro, Bárbara
dc.contributor.authorReis Pereira, Pedro
dc.contributor.authorOliveira, João
dc.contributor.authorAlmeida, Manuela
dc.contributor.authorMartins, La Salete
dc.contributor.authorJ, Malheiro
dc.date.accessioned2024-06-18T12:56:04Z
dc.date.available2024-06-18T12:56:04Z
dc.date.issued2023-01
dc.description.abstractIntroduction: Living donor kidney transplantation (LDKT) is accepted as first-line treatment for patients with end-stage kidney disease with advantages over deceased donor kidney transplantation (DDKT). Still, how the known detrimental effect of HLA mismatch (MM) may hamper these advantages remains unsettled. We sought to determine the effect of the degree of HLA MM, separately in deceased and living donor renal allograft outcomes. Methods: We evaluated all adults submitted to LDKT and DDKT at our center between 2006 and 2018. Their HLA MM was classified according to the British Society of Transplantation system in low mismatch (LM) (level 1-2) and high mismatch (HM) (level 3-4). Acute rejection (AR) and global or censored graft survival were the outcomes of interest. Recipients were followed up from transplant until death, graft failure or the end of 2020. Results: One thousand sixty-eight kidney transplant recipients were analyzed, 815 (76%) received a DDKT whereas 253 (24%) received an LDKT. From those submitted to DDKT, 95 (12%) had an LM and 720 (88%) had an HM, whereas in LDKT 32 (13%) had an LM and 221 (87%) had an HM. The AR at one year was 9% in the full cohort. Significant risk factors for AR were HM DDKT (OR:2.3, P=0.047) or HM LDKT (OR:5.6, P=0.003) (LM DDKT as reference), calculated panel-reactive antibody (cPRA) ≥5% (OR:1.9, P=0.040) and delayed graft function (DGF), (OR:3.2, P<0.001). Censored graft survival (CGS) at five years was 96% in the full cohort. Independent predictors for censored graft failure (CGF) were HM LDKT (HR:0.2, P=0.046) (LM DDKT as reference), AR (HR:2.7, P=0.008) and DGF (HR:2.2, P=0.017). Global graft survival (GGS) at five years was 91% in the full cohort. Independent predictors for global graft failure (GGF) were HM LDKT (HR:0.2, P=0.042) (LM DDKT as reference), recipient age (HR:1.8, P<0.001) and DGF (HR:1.8, P=0.006). No AR, CGF or GGF episodes were observed in the LM LDKT group. Conclusions: In our cohort, the level of HLA MM increased the risk of AR independently of donor type. Considering short graft survival, our results support the advantage of living donor vs deceased donor even with an increased HLA MM. However, its effect on long-term graft survival remains to be settled, emphasizing the need for further studies on this matterpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationRibeiro B, Reis Pereira P, Oliveira J, Almeida M, Martins S, Malheiro J. Greater Impact of Living Donation Than HLA Mismatching in Short-Term Renal Allograft Survival. Cureus. 2023;15(1):e34427. doi:10.7759/cureus.34427pt_PT
dc.identifier.doi10.7759/cureus.34427pt_PT
dc.identifier.issn2168-8184
dc.identifier.urihttp://hdl.handle.net/10400.16/2973
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherCureus, Inc.pt_PT
dc.relation.publisherversionhttps://www.cureus.com/articles/133813-greater-impact-of-living-donation-than-hla-mismatching-in-short-term-renal-allograft-survival#!/pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectacute rejectionpt_PT
dc.subjectcensored graft survivalpt_PT
dc.subjectdeceased donor kidney transplantationpt_PT
dc.subjectglobal graft survivalpt_PT
dc.subjecthla mismatchingpt_PT
dc.subjectliving donor kidney transplantationpt_PT
dc.titleGreater Impact of Living Donation Than HLA Mismatching in Short-Term Renal Allograft Survivalpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUnited States of Americapt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPagee34427pt_PT
oaire.citation.titleCureuspt_PT
oaire.citation.volume15pt_PT
person.familyNameMartins
person.familyNameMalheiro
person.givenNameLa Salete
person.givenNameJorge
person.identifier1911437
person.identifier.ciencia-id7A1B-8631-FC46
person.identifier.orcid0000-0002-6110-2102
person.identifier.orcid0000-0002-9625-5889
person.identifier.ridK-6320-2013
person.identifier.scopus-author-id56207848700
person.identifier.scopus-author-id26434404600
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication71fef9db-e03d-423a-af46-2909891b037d
relation.isAuthorOfPublicationbf3e5709-4eaa-49d7-bbd9-20e9cfe84979
relation.isAuthorOfPublication.latestForDiscovery71fef9db-e03d-423a-af46-2909891b037d

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