Shunt portossistémico extrahepático congénito em cães: estudo de 4 casos clínicos
Miniatura indisponível
Data
2023
Título da revista
ISSN da revista
Título do Volume
Editora
Resumo
Esta dissertação foi realizada no âmbito da conclusão do Mestrado Integrado em Medicina Veterinária pela Universidade Lusófona de Humanidades e Tecnologias e teve como tema shunts portossistémicos extrahepáticos (SPSEH) congénitos em cães. Após uma revisão bibliográfica, foram descritos 4 casos clínicos acompanhados durante o estágio curricular no Hospital Veterinário do Baixo Alentejo.
Os shunts portossistémicos (SPS) congénitos são considerados a anomalia hepatobiliar congénita mais comum em Medicina Veterinária e resultam da persistência do ducto venoso ou da formação de uma comunicação congénita entre a circulação portal e sistémica. A maioria dos SPS congénitos são extrahepáticos e, desses, os mais comuns são os portocaval. Surgem geralmente em raças pequenas ou toy, sendo mais prevalente nas raças Yorkshire Terrier, Bichon Havanês, Maltês, Dandie Dinmont Terrier, Pug e Shnauzer Miniatura. Animais com SPSEH congénito são geralmente de pequena estatura, com sinais do sistema nervoso central causados por encefalopatia hepática, gastrointestinais e/ou urinários. Podem ser diagnosticadas através dos mais variados meios de diagnóstico e o seu maneio pode ser terapêutico e cirúrgico. Nesta dissertação, são descritos casos de shunts semelhantes com diferentes abordagens terapêuticas, através do maneio médico e de cirurgia para colocação de banda de celofane, com distintos resultados.
Palavras-chave: shunt portossistémico extrahepático congénito; anomalias vasculares congénitas; maneio terapêutico; atenuação cirúrgica com banda de celofane.
This dissertation was carried out as part of the conclusion of the Integrated Master’s Degree in Veterinary Medicine by the Universidade Lusófona de Humanidades e Tecnologias and had as its theme Congenital Extrahepatic Portosystemic Shunts in dogs. After a bibliographic review, 4 clinical cases followed during the curricular internship at Hospital Veterinário do Baixo Alentejo are described. Congenital Portosystemic Shunts (PSS) are considered the most common congenital hepatobiliary abnormality in Veterinary Medicine and it results from the persistence of the ductus venosus or from the formation of a congenital communication between the portal and systemic circulation. Most congenital PSS are extrahepatic (EHPSS) and, of these, the most common are portocavals. EHPSS usually appears in small or toy breeds, being more prevalent in the Yorkshire Terrier, Bichon Havanese, Maltese, Dandie Dinmont Terrier, Pug and Miniature Shnauzer breeds. Animals with EHPSS are usually of small stature, with central nervous system signs caused by hepatic encephalopathy, gastrointestinal and/or urinary. They can be diagnosed through the most varied means of diagnosis and their management can be both therapeutic and surgical. In this dissertation, cases of similar shunts with different therapeutic approaches are described, through medical management and surgery for placement of a cellophane band, all with different outcomes. Keywords: Congenital extrahepatic portosystemic shunt; congenital vascular disorders; therapeutic management; surgical attenuation using a cellophane band.
This dissertation was carried out as part of the conclusion of the Integrated Master’s Degree in Veterinary Medicine by the Universidade Lusófona de Humanidades e Tecnologias and had as its theme Congenital Extrahepatic Portosystemic Shunts in dogs. After a bibliographic review, 4 clinical cases followed during the curricular internship at Hospital Veterinário do Baixo Alentejo are described. Congenital Portosystemic Shunts (PSS) are considered the most common congenital hepatobiliary abnormality in Veterinary Medicine and it results from the persistence of the ductus venosus or from the formation of a congenital communication between the portal and systemic circulation. Most congenital PSS are extrahepatic (EHPSS) and, of these, the most common are portocavals. EHPSS usually appears in small or toy breeds, being more prevalent in the Yorkshire Terrier, Bichon Havanese, Maltese, Dandie Dinmont Terrier, Pug and Miniature Shnauzer breeds. Animals with EHPSS are usually of small stature, with central nervous system signs caused by hepatic encephalopathy, gastrointestinal and/or urinary. They can be diagnosed through the most varied means of diagnosis and their management can be both therapeutic and surgical. In this dissertation, cases of similar shunts with different therapeutic approaches are described, through medical management and surgery for placement of a cellophane band, all with different outcomes. Keywords: Congenital extrahepatic portosystemic shunt; congenital vascular disorders; therapeutic management; surgical attenuation using a cellophane band.
Descrição
Orientação: Rute Teixeira
Palavras-chave
MESTRADO INTEGRADO EM MEDICINA VETERINÁRIA, MEDICINA VETERINÁRIA, VETERINARY MEDICINE, VETERINÁRIA, CANÍDEOS, CANIDS, CÃES, DOGS, CASOS CLÍNICOS, CASE REPORTS, SHUNT PORTOSSISTÉMICO, PORTASYSTEMIC SHUNT, ANOMALIAS CONGÉNITAS, CONGENITAL ANOMALIES, TERAPÊUTICAS, THERAPEUTICS