Biomedical subjects
Publications and source records attributed to E Côté.
Severe heart disease may cause hypotension and hypoperfusion, and ultimately circulation may cease altogether. These two clinical syndromes are cardiogenic shock and cardiac arrest, respectively. This review summarizes the causes and clinical features of each, and describes the treatment options available to clinicians managing patients in cardiogenic shock.
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Transvenous pacing therapy is a life-saving technique for patients with clinically significant bradyarrhythmias. For most symptomatic bradyarrhythmias in small animals, there is no effective substitute for cardiac pacing. The methods employed for pacemaker placement, although potentially time-consuming, are not technically difficult. This article discusses the indications, techniques, clinical decision-making, and potential complications associated with temporary and permanent transvenous cardiac pacing.
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Blastomycosis was diagnosed in 6 dogs living in New York state. To our knowledge, blastomycosis has not been previously reported in dogs in this area, and maps that indicate the prevalence of blastomycosis in North America often partially or completely exclude the state of New York. Environmental characteristics implicated in previous blastomycosis outbreaks in people can be found in New York state, and this may explain how these dogs became infected. Blastomycosis develops in people as well as in dogs, and an understanding of the ecologic and clinical features of blastomycosis can help veterinarians counsel their clients in matters of public health.
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A small number of dogs with patent ductus arteriosus (PDA) have right-to-left flow of blood through the ductus, leading to polycythemia and clinical signs associated with hyperviscosity. Three dogs with right-to-left-shunting PDA are described. Treatment consisted solely of phlebotomy, performed on an outpatient basis when indicated by exacerbation of clinical signs, for a total of 11-68 times on each dog. Each treatment entailed the removal of a mean of 19% (maximum 28%) of circulating blood volume, divided into 2 phlebotomies several hours apart, without intravenous fluid replacement. Subjectively, marked clinical improvement was noted. Intermittent clinical signs decreased in frequency and severity in all dogs. Adverse effects were rare (1 for 98 phlebotomies) and reversible. Dogs lived > 2 to > 8 years during treatment. Outpatient phlebotomy without fluid replacement was safe, and was associated with subjective improvement and prolonged survival in these dogs.
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