HEPATIC STEATOSIS ASSESSMENT: a comparative study between surgeon evaluation and forward histopathologic findings

Context Liver transplantation is one of the last viable resources for patients with end-stage liver disease. Many strategies are been used to improve the number of available organs and overcome waiting list delay. However, hepatic steatosis is one of the mainly concerns when organs are consider to t...

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Main Authors: Aline M. A. MARTINS, Gustavo R. COELHO, Geraldo A. MARQUES, Manoel O. MORAES, José Telmo VALENÇA Jr., José Huygens P. GARCIA
Format: Article
Language:English
Published: Instituto Brasileiro de Estudos e Pesquisas de Gastroenterologia (IBEPEGE) 2013-03-01
Series:Arquivos de Gastroenterologia
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-28032013000100015
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Summary:Context Liver transplantation is one of the last viable resources for patients with end-stage liver disease. Many strategies are been used to improve the number of available organs and overcome waiting list delay. However, hepatic steatosis is one of the mainly concerns when organs are consider to transplantation due to it is importance as a risk factor for primary dysfunction. Surgeons play an important role to decide each organ will be accept or decline and its righteous allocation. Objective Retrospectively evaluate the surgeon assessment of steatosis degree and its confrontation with further histopathologic findings. Methods We analyzed 117 patients underwent deceased liver transplantation for end-stage liver disease in University Hospital Walter Cantideo, Fortaleza, CE, Brazil. A matrix table was organized to estimate the categorical data observed. We clustered the subjects into mild (0%&#8211;30%) and moderate (30%-60%) steatosis degree under the clinical criteria of organ suitability for transplantation. We categorized the organs as suitable organ for transplant and as non-suitable organ for transplant. Evaluations between the two first assessments, before perfusion (pre-perfusion) vs biopsy findings and after perfusion vs biopsy findings observations were analyzed and also a comparison between pre-perfusion and after perfusion data was performed. Results On the first assessment, we obtained a 93% of agreement (n = 109) between the two evaluations. On the second assessment, we had an 8% (n = 9) of mistaken allocation. Comparing the observation before (pre-perfusion) and after (after perfusion), we obtained a strong agreement between the surgeons. Conclusions Although our experienced surgeon team, we have wrongly evaluated feasible organs for transplantation. Nonetheless, our faulty percentage is low comparing to worldwide percentage.<br> Contexto O transplante ortot&#243;pico de f&#237;gado &#233; considerado um dos &#250;ltimos recursos terap&#234;uticos vi&#225;veis para os pacientes hepatopatas, em est&#225;gio terminal da doen&#231;a. Muitas estrat&#233;gias t&#234;m sido usadas para aumentar o n&#250;mero de &#243;rg&#227;os dispon&#237;veis e diminuir a demora em lista de espera. No entanto, a presen&#231;a de esteatose hep&#225;tica &#233; uma das principais limita&#231;&#245;es quanto ao uso de &#243;rg&#227;os para transplante, devido a sua import&#226;ncia como relevante fator de risco para disfun&#231;&#227;o prim&#225;ria p&#243;s-transplante. Neste cen&#225;rio, a avalia&#231;&#227;o do &#243;rg&#227;o pelo cirurgi&#227;o, no momento da capta&#231;&#227;o no doador, &#233; de grande import&#226;ncia para a correta aloca&#231;&#227;o do mesmo. Objetivo Avaliar retrospectivamente o grau de esteatose estabelecido pelo cirurgi&#227;o e confrontar estes dados com os achados histopatol&#243;gicos da biopsia. M&#233;todos Analisaram-se 117 pacientes hepatopatas terminais sub-metidos ao transplante de f&#237;gado no Hospital Universit&#225;rio Walter Cant&#237;deo, Fortaleza, CE. Uma tabela matriz foi organizada para avalia&#231;&#227;o dos dados categ&#243;ricos observados. Os indiv&#237;duos foram classificados quanto ao grau de esteatose apresentado pelo &#243;rg&#227;o: leve (0%-30%) e moderada (30%-60%) e agrupados sob os crit&#233;rios cl&#237;nicos de adequa&#231;&#227;o de &#243;rg&#227;os para transplante. Os &#243;rg&#227;os foram descritos como adequado para transplante de &#243;rg&#227;os e como n&#227;o adequado para transplante de &#243;rg&#227;os. As avalia&#231;&#245;es entre as duas primeiras situa&#231;&#245;es, antes da perfus&#227;o vs biopsia e ap&#243;s a perfus&#227;o vs biopsia foram analisadas; bem como realizada compara&#231;&#227;o entre as duas situa&#231;&#245;es de perfus&#227;o (antes e ap&#243;s). Resultados Na primeira avalia&#231;&#227;o, obtiveram-se 93% de concord&#226;ncia (n = 109) entre as duas observa&#231;&#245;es, mostrando grande grau de concord&#226;ncia entre as classifica&#231;&#245;es do &#243;rg&#227;o antes da perfus&#227;o e na biopsia. Na segunda avalia&#231;&#227;o, obteve-se um grau de discord&#226;ncia de 8%, levando a erros de aloca&#231;&#227;o em nove situa&#231;&#245;es. Na compara&#231;&#227;o entre as avalia&#231;&#245;es realizadas entre antes e ap&#243;s a perfus&#227;o, obteve-se forte concord&#226;ncia atrav&#233;s do &#237;ndice kappa entre os espectadores. Conclus&#245;es Embora a equipe deste estudo seja constitu&#237;da de cirurgi&#245;es experientes, em alguns casos os mesmos, foram induzidos a erros de aloca&#231;&#227;o. No entanto o percentual encontra-se bastante abaixo da m&#233;dia mundial.
ISSN:0004-2803
1678-4219