RESUMO
If, when using a circle system, the flow of all inhaled gases exactly equals the uptake of all these gases by the patient, the circle system is called a closed circle system. If the fresh gas flows are higher than the uptake of the gases by the body, the circle system is a semiclosed circle system. The mechanical status of the pop-off valve; i.e., open or closed, has nothing to do with the definition of whether the circle is closed or semiclosed.
Assuntos
Anestesia por Inalação/veterinária , Cães/fisiologia , Nebulizadores e Vaporizadores/veterinária , Anestesia por Inalação/métodos , Animais , Reologia/veterináriaRESUMO
High gas flows provide a higher margin of safety and fewer physiologic complications for extended anesthetic periods. The veterinarian should consider personnel, anesthetic, and monitoring equipment and the surgical procedure requiring anesthesia before making a final decision on which flow rates are appropriate.
Assuntos
Anestesia por Inalação/veterinária , Nebulizadores e Vaporizadores/veterinária , Animais , Reologia/veterináriaRESUMO
The advantages of using modern nonrebreathing systems in very small patients far outweighs the few disadvantages. Their use results in more precise control of anesthetic depth, better ventilation and gas exchange, and a lower incidence of mechanical problems.
Assuntos
Anestesia por Inalação/veterinária , Aves/fisiologia , Gatos/fisiologia , Cães/fisiologia , Nebulizadores e Vaporizadores/veterinária , Anestesia por Inalação/métodos , Animais , Reologia/veterináriaRESUMO
The cardiovascular function of horses was less depressed during anaesthesia with isoflurane than during anaesthesia with halothane. Muscular microcirculation measured by laser Doppler flowmetry was significantly greater in horses anaesthetised with isoflurane.
Assuntos
Halotano , Cavalos/fisiologia , Isoflurano , Músculos/irrigação sanguínea , Reologia/veterinária , Anestesia por Inalação/veterinária , Animais , Velocidade do Fluxo Sanguíneo/veterinária , Pressão Sanguínea/efeitos dos fármacos , Débito Cardíaco/efeitos dos fármacos , Frequência Cardíaca/efeitos dos fármacos , Lasers , Microcirculação , Volume Sistólico/efeitos dos fármacos , Resistência Vascular/efeitos dos fármacosRESUMO
Muscular microcirculation was studied in seven halothane anaesthetised horses in lateral recumbency using a laser Doppler flowmeter. A significant difference between the dependent and the uppermost triceps brachii was recorded. In the dependent muscles, microflow at first decreased and then increased up to the starting value. In the uppermost muscles, a significant rise of the microflow was measured.
Assuntos
Cavalos/fisiologia , Lasers , Músculos/irrigação sanguínea , Reologia/veterinária , Anestesia Geral/veterinária , Animais , Halotano , Microcirculação/fisiologia , PosturaAssuntos
Bovinos/fisiologia , Fenômenos Eletromagnéticos/métodos , Lactação , Glândulas Mamárias Animais/irrigação sanguínea , Reologia/veterinária , Aminoácidos Essenciais/metabolismo , Animais , Bovinos/metabolismo , Feminino , Glucose/metabolismo , Lactose/metabolismo , Glândulas Mamárias Animais/metabolismo , Gravidez , Proteínas/metabolismo , Reologia/métodos , Triglicerídeos/metabolismoAssuntos
Velocidade do Fluxo Sanguíneo/veterinária , Fenômenos Eletromagnéticos , Cavalos/fisiologia , Metacarpo/irrigação sanguínea , Reologia/veterinária , Dedos do Pé/irrigação sanguínea , Animais , Artérias/fisiologia , Pressão Sanguínea , Membro Anterior/irrigação sanguínea , Reologia/instrumentação , Resistência VascularRESUMO
A simple and inexpensive apparatus, requiring minimum labor to operate, was designed to measure flow and sample duodenal contents in young dairy calves. This apparatus simulated normal physiological conditions and was used satisfactorily under varied experimental conditions.
Assuntos
Bovinos/fisiologia , Duodeno/fisiologia , Reologia/veterinária , Manejo de Espécimes/veterinária , Abomaso/fisiologia , Animais , Reologia/instrumentação , Manejo de Espécimes/instrumentaçãoRESUMO
The small size of a new thermistor flowmeter facilitated implantation in ureters in anesthetized dogs. It consisted of a self-heating thermistor bead which was suspended centrally within an open catheter and dissipated heat as a function of fluid velocity. A continuous record of instantaneous flow rate was obtained, since the flowmeter catheter maintained a constant cross-sectional area around the thermistor bead. A continuous record of volume output was obtained simultaneously with an additional measurement technique. Spurt volumes of urine delivered in concert with ureter peristalsis were directly correlated to peak flow rates delineated by the flowmeter.
