RESUMO
A 4-month-old intact female Cavalier King Charles spaniel presented for evaluation of a left, basilar continuous murmur. Transthoracic echocardiography suggested anomalous vessels around the main pulmonary artery, and computed tomography angiography revealed two systemic-to-pulmonary artery fistulas. Transcatheter embolization of these fistulas was achieved with a combination of embolization coils and silk suture threads delivered through a microcatheter.
Assuntos
Fístula Artério-Arterial/veterinária , Doenças do Cão/terapia , Embolização Terapêutica/veterinária , Animais , Fístula Artério-Arterial/congênito , Fístula Artério-Arterial/diagnóstico por imagem , Fístula Artério-Arterial/terapia , Angiografia por Tomografia Computadorizada/veterinária , Doenças do Cão/diagnóstico por imagem , Cães , Ecocardiografia/veterinária , Embolização Terapêutica/métodos , Feminino , Artéria Pulmonar/anormalidades , SedaRESUMO
An 8-month-old intact female pug was presented for evaluation and possible balloon valvuloplasty (BV) for severe aortic stenosis. A bicuspid, severely stenotic aortic valve of type 3 morphology with a supravalvar stenosis component was diagnosed, consistent with the diagnosis of atypical Shone's complex. There was severe concentric hypertrophy of the left ventricle, with increased echogenicity of the myocardium nearest to the endocardial border. Mild left atrial enlargement was observed. Selective angiography and transesophageal echocardiography revealed an enlarged and relatively tortuous ascending aorta. The changes to the ascending aorta and the anatomy of the lesion made retrograde access to the left ventricle challenging. Ultimately, BV was successful using a pediatric valvuloplasty balloon catheter and rapid right ventricular pacing, and the pressure gradient across the aortic valve was decreased by more than 50% compared with preoperative measurements. Although valvar aortic stenosis is rare in veterinary medicine, this report highlights the potential challenges and feasibility of BV for this disease.
Assuntos
Estenose Aórtica Supravalvular/veterinária , Valva Aórtica/anormalidades , Valvuloplastia com Balão/veterinária , Doenças do Cão/terapia , Doenças das Valvas Cardíacas/veterinária , Animais , Estenose Aórtica Supravalvular/diagnóstico por imagem , Estenose Aórtica Supravalvular/terapia , Valva Aórtica/diagnóstico por imagem , Doença da Válvula Aórtica Bicúspide , Doenças do Cão/diagnóstico por imagem , Cães , Ecocardiografia/veterinária , Ecocardiografia Transesofagiana/veterinária , Feminino , Doenças das Valvas Cardíacas/diagnóstico por imagem , Doenças das Valvas Cardíacas/terapiaRESUMO
Atrial fibrillation is characterized by uncoordinated electrical activation of the atria that leads to the loss of atrial mechanical function and atrial fibrosis as a substrate promoting maintenance of rhythm abnormality. Transvenous electrical cardioversion has not been previously reported in the dog. The authors demonstrate the use of this technique for successful cardioversion of atrial fibrillation in two dogs with dilated cardiomyopathy.
Assuntos
Fibrilação Atrial/veterinária , Doenças do Cão/terapia , Animais , Fibrilação Atrial/terapia , Diagnóstico Diferencial , Cães , Cardioversão Elétrica/veterinária , Feminino , MasculinoRESUMO
A 3-day-old Hereford heifer calf presented for evaluation of lethargy and dyspnea, with persistent hypoxia despite supplemental oxygen therapy. A grade III/VI right apical systolic murmur was noted during cardiac auscultation. Echocardiography revealed a double-outlet right ventricle with an intact interventricular septum and concurrent hypoplastic left ventricle and tricuspid valve dysplasia. Post-mortem examination revealed additional congenital anomalies of ductus arteriosus, patent foramen ovale, and persistent left cranial vena cava. This report illustrates the use of echocardiographic images to diagnose a double-outlet right ventricle with an intact interventricular septum and a hypoplastic left ventricle in a calf.