Publications by authors named "Joao Orvalho"

Echocardiography is one of the most important diagnostic tools in veterinary cardiology, and one of the greatest recent developments is real-time three-dimensional imaging. Real-time three-dimensional echocardiography is a new ultrasonography modality that provides comprehensive views of the cardiac valves and congenital heart defects. The main advantages of this technique, particularly real-time three-dimensional transesophageal echocardiography, are the ability to visualize the catheters, and balloons or other devices, and the ability to image the structure that is undergoing intervention with unprecedented quality.

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Cardiorenal Syndrome: Diagnosis and Management.

Vet Clin North Am Small Anim Pract

September 2017

Cardiorenal syndrome (CRS) has not been well characterized in veterinary medicine, yet an accurate appreciation of the kidney and the cardiovascular system and their interactions may have practical clinical implications. A consensus for cardiovascular-renal axis disorders of dogs and cats was recently attempted. The outcome of patients with CRS is likely to improve with the increasing awareness and ability to identify and understand the pathophysiologic characteristics of CRS.

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Aortopulmonary window is a rare congenital anomaly, resulting from incomplete septation of the truncus arteriosus into the aorta and the pulmonary artery during embryogenesis. The utility of three-dimensional (3D) echocardiogram has not been previously reported in dogs with aortopulmonary windows. The authors demonstrate the diagnostic potentials of 3D echocardiogram and its ability to more completely define the anatomical features of aortopulmonary window in a dog when compared to two-dimensional imaging.

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A 2.6-year-old duck was evaluated for respiratory difficulty. On the basis of physical, radiographic and echocardiographic findings, a diagnosis of congestive heart failure secondary to congenital mitral stenosis and subvalvular aortic stenosis was made.

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Objective: To evaluate serum cardiac troponin I (cTnI) concentrations in Boxers with arrhythmogenic right ventricular cardiomyopathy (ARVC), unaffected (control) Boxers, and control non-Boxers.

Animals: 10 Boxers with a clinical diagnosis of ARVC defined by > or = 1,000 ventricular premature complexes (VPCs)/24 h on an ambulatory ECG, 10 control Boxers assessed as normal by the presence of < 5 VPCs/24h, and 10 control non-Boxers.

Procedures: Serum was extracted from a blood sample from each dog.

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