RESUMO
Esta revisión tiene como meta describir Ia evaluación de Ia placenta equina inmediatamente despuésdei nacimiento, con los hallazgos de Ia macroscópica yla histología, que muestra Ia importancia de Ia evaluación de Ia placenta para el pronóstico neonatal. La placenta es Ia principal conexión entre Ia yegua y el feto durante el embarazo, y los cambios en que puede lIevar a un deterioro dei feto, 10 que resulta en abortos, mortinatos onacimiento de Ias crías no viables y prematuros. Muchas yeguas no pueden mostrar signos clínicos de cambiode Ia placenta durante el embarazo. Por 10 tanto, Ia evaluación de Ia placenta después dei parto y el reconocimiento de características de Ia macroscópica y Ia histología son importantes para el diagnóstico ypronóstico en los recién nacidos de riesgo.
The present review aimed to described the equine placenta evaluation at the parturition characterizedthe grossly and histologic findings, by this way demonstrated the importance to placental evaluation in theneonatal prognosis. The placenta matches a main relation between mare and fetus in gestation, and changes inthis structure can lead to fetal compromise, resulting in abortion, stillbirths, birth of premature and nõn-viablefoals. Some mares did not demonstrate clinical signs of placental compromise during gestation. Therefore, theplacental evaluation in the parturition and the acknowledgment of grossly and histologic features are importantto risk neonates diagnosis and prognosis.
A presente revisão tem como objetivo descrever a avaliação da placenta equina no pós-parto imediato,caracterizando achados macroscópicos e histológicos, apresentando a importância da avaliação placentária para prognóstico neonatal. A placenta representa a principal conexão entre a égua e o feto durante a gestação,sendo que alterações na mesma podem levar ao comprometimento do feto, resultando em abortos, natimorto sou nascimento de potros prematuros e não viáveis. Muitas éguas podem não demonstrar sinais clínicos de alteração placentária durante a gestação. Dessa forma, a avaliação da placenta no pós-parto e reconhecimento das características macroscópicas e histológicas são importantes para diagnóstico e prognóstico em neonatos de risco.
Assuntos
Feminino , Animais , Gravidez , Cavalos/anatomia & histologia , Cavalos/fisiologia , Parto , Placenta/anatomia & histologia , Prenhez , Aborto Animal/prevenção & controle , Natimorto/veterinária , Trabalho de Parto Prematuro/prevenção & controle , Trabalho de Parto Prematuro/veterináriaRESUMO
Background: Aneurysm is a vascular disease that causes the partial rupture of arteries and veins and subsequent blood leakage due to the weakening of the vessels elastic middle layer. Venous aneurysms in horses are rare, but the arterial aneurysms are commonly reported. The aim of this paper is to report a rare occurrence of jugular external aneurysm in a horse and propose the inclusion this disease as a differential diagnosis, both because it is rare in this specie and invariably fatal. The medical examination showed a firm well-defined mass, painless, nonpulsatile on palpation and with no changed in the local temperature. Case: The horse was referred to the Veterinarian Hospital of the Federal University of Pelotas (UFPel, RS-Brazil. It was a male, Crioulo breed, 10 years old, used as stallion. The owner reported a swelling in the pectoral region that occurred after a trauma episode that had gradually grown for two years. The patient was clinically stable, and would undergo surgery extirpation for aesthetic matters. Clinical examination showed the swelling was circumscribed and centralized and it presented about 20 centimeters in diameter. The ultrasound of the pectoral area showed an anechoic structure with hyperechoic spots inside limited by an hyperechoic layer similar to a fibrous capsule. Presumptive diagnostics were of: hematoma, subcutaneous abscess, neoplasia, and [...](AU)
Assuntos
Animais , Cavalos , Aneurisma/veterinária , Veias Jugulares , Doenças Vasculares/veterináriaRESUMO
Esta revisión tiene como meta describir Ia evaluación de Ia placenta equina inmediatamente despuésdei nacimiento, con los hallazgos de Ia macroscópica yla histología, que muestra Ia importancia de Ia evaluación de Ia placenta para el pronóstico neonatal. La placenta es Ia principal conexión entre Ia yegua y el feto durante el embarazo, y los cambios en que puede lIevar a un deterioro dei feto, 10 que resulta en abortos, mortinatos onacimiento de Ias crías no viables y prematuros. Muchas yeguas no pueden mostrar signos clínicos de cambiode Ia placenta durante el embarazo. Por 10 tanto, Ia evaluación de Ia placenta después dei parto y el reconocimiento de características de Ia macroscópica y Ia histología son importantes para el diagnóstico ypronóstico en los recién nacidos de riesgo.(AU)
The present review aimed to described the equine placenta evaluation at the parturition characterizedthe grossly and histologic findings, by this way demonstrated the importance to placental evaluation in theneonatal prognosis. The placenta matches a main relation between mare and fetus in gestation, and changes inthis structure can lead to fetal compromise, resulting in abortion, stillbirths, birth of premature and nõn-viablefoals. Some mares did not demonstrate clinical signs of placental compromise during gestation. Therefore, theplacental evaluation in the parturition and the acknowledgment of grossly and histologic features are importantto risk neonates diagnosis and prognosis.(AU)
A presente revisão tem como objetivo descrever a avaliação da placenta equina no pós-parto imediato,caracterizando achados macroscópicos e histológicos, apresentando a importância da avaliação placentária para prognóstico neonatal. A placenta representa a principal conexão entre a égua e o feto durante a gestação,sendo que alterações na mesma podem levar ao comprometimento do feto, resultando em abortos, natimorto sou nascimento de potros prematuros e não viáveis. Muitas éguas podem não demonstrar sinais clínicos de alteração placentária durante a gestação. Dessa forma, a avaliação da placenta no pós-parto e reconhecimento das características macroscópicas e histológicas são importantes para diagnóstico e prognóstico em neonatos de risco. (AU)
Assuntos
Animais , Feminino , Gravidez , Placenta/anatomia & histologia , Cavalos/fisiologia , Cavalos/anatomia & histologia , Parto , Prenhez , Aborto Animal/prevenção & controle , Natimorto/veterinária , Trabalho de Parto Prematuro/prevenção & controle , Trabalho de Parto Prematuro/veterináriaRESUMO
Background: Aneurysm is a vascular disease that causes the partial rupture of arteries and veins and subsequent blood leakage due to the weakening of the vessels elastic middle layer. Venous aneurysms in horses are rare, but the arterial aneurysms are commonly reported. The aim of this paper is to report a rare occurrence of jugular external aneurysm in a horse and propose the inclusion this disease as a differential diagnosis, both because it is rare in this specie and invariably fatal. The medical examination showed a firm well-defined mass, painless, nonpulsatile on palpation and with no changed in the local temperature. Case: The horse was referred to the Veterinarian Hospital of the Federal University of Pelotas (UFPel, RS-Brazil. It was a male, Crioulo breed, 10 years old, used as stallion. The owner reported a swelling in the pectoral region that occurred after a trauma episode that had gradually grown for two years. The patient was clinically stable, and would undergo surgery extirpation for aesthetic matters. Clinical examination showed the swelling was circumscribed and centralized and it presented about 20 centimeters in diameter. The ultrasound of the pectoral area showed an anechoic structure with hyperechoic spots inside limited by an hyperechoic layer similar to a fibrous capsule. Presumptive diagnostics were of: hematoma, subcutaneous abscess, neoplasia, and [...]