Proximal Aortic Dissection (Dissecting Aortic Aneurysm) in a Mature Ostrich

Ferreras, M.C.; Gonzalez, J. P.; Pérez, Víctor Hugo Viteri; Reyes, Lídice; Gomez, Nestor A.; Pérez, Carla; Corpa, J. M.; Garcia-Marin, J. F.

doi:10.2307/1593037

Cited by 13 publications

(9 citation statements)

References 7 publications

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“…However, copper deficiency that predisposes to defective elastin is suggested as a possible cause [54–57] which is also described in turkeys [58]. Other causes might be systemic hypertension and a genetic predisposition [55]. The other vascular lesions identified in this study (case Nos.…”

Section: Discussionmentioning

confidence: 64%

Spontaneous diseases in captive ratites (Struthioniformes) in northwestern Germany: A retrospective study

et al. 2017

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A retrospective study was carried out to define the spectrum of spontaneous diseases in ostriches and few other captive ratites, order Struthioniformes, in northwestern Germany. The investigation included 71 ratites necropsied between 1968 and 2014. They consisted of 54 ostriches, 5 emus, and 12 rheas with 37 adults, 23 juveniles and 11 neonates and embryonated eggs. Necropsy reports were reviewed, histologic preparations were re-examined and additional histochemical and immunohistochemical stains were carried out in selected cases. In many animals more than one morphologic diagnosis attributable to different disease processes was found. In adult animals (n = 37), the most commonly altered organ systems were the musculoskeletal system (49%), the digestive system (46%), and the cardiovascular system (46%) affected by traumatic lesions, inflammatory and degenerative changes, respectively. A spongy degeneration was found in the brain (35%); however, immunohistochemistry and western blotting failed to detect pathological prion protein. In juvenile animals (n = 23), the musculoskeletal (44%) and the digestive system (43%) were mainly affected by traumatic and inflammatory lesions, respectively. In embryonated eggs and neonates (n = 11) the major cause of death was circulatory failure associated with generalized subcutaneous edema as described for improper incubation conditions (64%). Summarized, most of the findings observed in adult and juvenile ratites in northwestern Germany are related to trauma, inflammatory and degenerative disorders, whereas death in embryonated eggs and neonates was most likely related to breeding conditions. A spongy encephalopathy awaits further studies to elucidate cause and pathogenesis.

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Section: Discussionmentioning

confidence: 64%

Spontaneous diseases in captive ratites (Struthioniformes) in northwestern Germany: A retrospective study

et al. 2017

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“…Em primatas (BOORMAN et al, 1976;SCHOEN;COTRAN, 2000), cães e gatos (JONES et al, 2000;BOULINEAU et al, 2005), a hipertensão arterial e arteriosclerose aterosclerótica se destacam entre os principais fatores de riscos para dissecção da aorta, porém em aves existem poucos relatos que relacionam o aneurisma à hipertensão (FERRERAS et al, 2001). Este caso apresentou alterações macroscópicas como a hipertrofia cardíaca esquerda concêntrica e as alterações microscópicas como hialinose e necrose fibrinóide em arteríolas renais, compatíveis com hipertensão arterial.…”

Section: Discussionunclassified

“…Em perus, suínos e ratos (VANHOOSER et al, 1994;JONES et al, 2000;FERRERAS et al, 2001), existem evidências de que a deficiência nutricional de cobre resulta na inadequada formação da parede dos vasos, uma vez que a ligação entre fibras elásticas e colágenas da parede vascular depende da enzima lisil oxidase a qual é dependente de cobre (BAUER, 1992; VAN VEEN, 1999;HRISTOVA;HENRY, 2001) . Dessa forma, uma deficiência de cobre poderia tornar a parede da aorta mais sensível a variações de pressão.…”

Section: Discussionunclassified

“…A dissecção aórtica tem sido relatada com relativa freqüência em humanos idosos com hipertensão (SAWHNEY et al, 2009), mas em animais há poucos relatos descritos em bovinos, eqüinos, suínos, cães e aves ( VAN VLEEN;FERRANS, 1998;JONES et al, 2000;BOULINEAU et al, 2005). As espécies de aves acometidas têm sido perus e avestruzes (MITCHINSON; KEYMER, 1977;VANHOOSER et al, 1994;FERRERAS et al, 2001), sendo destacada como principal causa a nutricional. O objetivo deste trabalho foi descrever os achados anatomopatológicos encontrados em avestruz vítima de morte súbita por dissecção aórtica.…”

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RELATO DE CASO: DISSECÇÃO AÓRTICA PROXIMAL EM AVESTRUZ (Struthio camelus)

Terra¹,

Campos²,

Silva³

et al. 2009

Nucleus Animal.

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RESUMO Um avestruz fêmea, vítima de morte súbita, foi submetido à necropsia em que foram observados, macroscopicamente, hematoma na cavidade pericárdica, hipertrofia concêntrica do ventrículo esquerdo, hematoma intramural dissecante da aorta proximal e hemorragia pulmonar. Após estudos histopatológicos e dosagem da concentração do cobre hepático, considerou-se a hipertensão arterial como principal fator de risco para a dissecção aórtica. Palavras -chave:Avestruz. Dissecção aórtica. Hipertensão. Cobre. CASE REPORT: PROXIMAL AORTIC DISSECTION IN OSTRICH (Struthio camelus)ABSTRACT: A female ostrich died suddenly was submitted to the autopsy and the gross lesions observed were hematoma in the pericardiac cavity, concentrical hypertrophy of the left ventricle, dissecting aortic aneurysm of thoracic segment and pulmonary hemorrhage. After histopathologic studies and hepatic cooper concentration, we had consider arterial hypertension as the major factor of risk to the aortic dissection.

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“…Sudden death due to a dissecting aortic aneurysm in ostriches and in a single emu has been suggested as being related to copper deficiency (Ferreras et al, 2001;Vanhooser et al, 1994). Histologic aortic lesions include fragmentation and disruption of the elastic laminae, cystic extracellular spaces, and an accumulation of what have been interpreted to be strongly sulfated acid mucopolysaccharides based on staining with Alcian blue and periodic acid Schiff (PAS).…”

Section: Non-infectious Diseases Nutritionalmentioning

confidence: 99%

Palaeognathae: Apterygiformes, Casuariiformes, Rheiformes, Struthioniformes; Tinamiformes

Smith

2018

Pathology of Wildlife and Zoo Animals

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Proximal Aortic Dissection (Dissecting Aortic Aneurysm) in a Mature Ostrich

Cited by 13 publications

References 7 publications

Spontaneous diseases in captive ratites (Struthioniformes) in northwestern Germany: A retrospective study

Spontaneous diseases in captive ratites (Struthioniformes) in northwestern Germany: A retrospective study

RELATO DE CASO: DISSECÇÃO AÓRTICA PROXIMAL EM AVESTRUZ (Struthio camelus)

Palaeognathae: Apterygiformes, Casuariiformes, Rheiformes, Struthioniformes; Tinamiformes

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