RESUMEN
Torsade de pointes is an unusual complication seen in dogs during pacemaker implantation, although ventricular fibrillation has been previously reported. This case report describes torsade de pointes in a dog during pacemaker implantation that degenerated into ventricular fibrillation and discusses the possible contributory factors. It also illustrates the relevance of a pre-emptive resuscitation plan and how this might have affected the outcome in the patient.
Asunto(s)
Enfermedades de los Perros/terapia , Marcapaso Artificial/veterinaria , Torsades de Pointes/veterinaria , Fibrilación Ventricular/veterinaria , Animales , Diagnóstico Diferencial , Perros , Electrocardiografía/veterinaria , Femenino , Marcapaso Artificial/efectos adversos , Torsades de Pointes/diagnóstico , Torsades de Pointes/etiología , Fibrilación Ventricular/diagnóstico , Fibrilación Ventricular/etiologíaRESUMEN
High fractional concentrations of inspired oxygen (FiO(2)) delivered over prolonged periods produce characteristic histological changes in the lungs and airway of exposed animals. Modern medical anaesthetic machines are adapted to deliver medical air (FiO(2)=0.21) for the purpose of reducing FiO(2); anaesthetic machines designed for the veterinary market have not been so adapted. Two inexpensive modifications that allow medical air to be added to the gas flow from veterinary anaesthetic machines are described. The advantages and disadvantages of each modification are discussed.