Vascular ring anomaly with a right patent ductus arteriosus and a left aortic arch in a juvenile cat

This paper reports the clinical findings and surgical treatment of feline right patent ductus arteriosus (RPDA) with a left aortic arch. A two-month-old female Maine Coon was referred for an investigation of regurgitation after weaning. RPDA with a left aortic arch was diagnosed based on the echocardiographic and computed tomography (CT) findings.A right-fourth intercostal thoracotomy was found to be an appropriate approach to the duct. Preoperative diagnosis is crucial and diagnostic imaging, including radiography, echocardiography, and cardiac CT examination, is essential for determining if the aortic arch is right or left.

Clip ligation for treatment of patent ductus arteriosus occlusion in three cats

Patent ductus arteriosus (PDA) is a rare congenital cardiovascular anomaly in cats. Due to their small body, intercostal thoracotomy is the most common option to close the PDA.However, few reports detail the surgical technique for ligating PDA in kittens. In this case report, three cats weighing 1.4 kg, 1.2 kg, and 2.9 kg were diagnosed PDA. Clip ligation via left fourth intercostal thoracotomy was performed and the cats were successfully treated.Postoperative echocardiography showed no residual flow in any of the cases. This case report highlights clip occlusion for small cats with PDA could be safe and effective.

Vasculopatia livedoide: rápida involução com câmara hiperbárica e terapia anticoagulante / Livedoid vasculopathy: fast involution after anticoagulant therapy and hiperbaric oxigen therapy

The livedoid vasculopathy is a rare condition characterized by the resence of recurrent painful ulcers in distal extremities of lower limbs. Histologically there is thickness of dermal vessels, occlusion of its light by fibrin thrombi associated with minimal inflammatory infiltrate. It might occur as an isolated condition or be associated with an underlying systemic disease, including coagulation and collagen disorders, or neoplasms. Because it is a rare disease there is no consensus for its treatment. We report a case of a 41-year-old man with painful ulcers in the lower extremities. We did not find any associated diseases. The lesions improved dramatically after treatment with anticoagulant and hyperbaric therapy. We concluded that anticoagulation associated with hyperbaric oxygenation may be benefit for the treatment of patients with livedoid vasculopathy. However, further studies should be done with a larger population to confirm our results.

A vasculopatia livedoide é uma doença que se caracteriza pela presença de úlceras dolorosas recorrentes localizadas nas extremidades distais dos membros inferiores. Histologicamente, apresenta-se com espessamento dos vasos da derme, oclusão de sua luz por trombos de fibrina, associados a um mínimo infiltrado inflamatório. Pode se apresentar isoladamente ou em associação a trombofilias, desordens do colágeno ou doenças neoplásicas. Por ser uma entidade rara, não há consenso sobre seu tratamento. Relatamos o caso de um paciente de 41 anos, do sexo masculino, com úlceras dolorosas de membros inferiores. Nenhum fator associado foi encontrado. Houve dramática regressão do quadro após instituição de terapia anticoagulante concomitante à aplicação de sessões de câmara hiperbárica. Concluímos que a terapia anticoagulante associada a sessões de câmara hiperbárica parece ser benéfica na vasculopatia livedoide; entretanto, sua aplicação em maior número de pacientes faz-se necessária para confirmarmos nossos resultados.