RESUMO
Difficulty in managing the airway is a major contributor to the morbidity and mortality of the trauma patient. The video laryngoscope, with its camera at the distal tip of the intubation blade, allows the practitioner an improved view of the glottic opening during intubation. The image from this viewer is transmitted to a monitor, allowing the intubating practitioner to "see around the corner" of a patient's airway. The purpose of the present study was to assess and compare the video quality of commercially available video laryngoscopy systems. It was found that between the STORZ C-MAC and the Verathon GlideScope® there was little difference between the video quality; the difference came down to user preference.
Assuntos
Intubação Intratraqueal/instrumentação , Laringoscópios , Gravação em Vídeo/instrumentação , Biotecnologia/instrumentação , Desenho de Equipamento , Análise de Falha de EquipamentoRESUMO
Though dedicated videoteleconference (VTC) systems deliver high quality, low-latency audio and video for telemedical applications, they require expensive hardware and extensive infrastructure. The purpose of this study was to investigate free commercially available Voice over Internet Protocol (VoIP) software as a low cost alternative for telemedicine.
Assuntos
Internet , Intubação Intratraqueal/métodos , Telecomunicações , Telemedicina/métodos , Terapia Assistida por Computador/métodos , Interface Usuário-Computador , Gravação em Vídeo/métodos , Simulação por Computador , Instrução por Computador/métodos , Humanos , Modelos BiológicosRESUMO
Cerebral osmoreceptors mediate thirst and neurohypophyseal secretion stimulated by increases in the effective osmolality of plasma (P(osmol)). The present experiments determined whether an intragastric load of hypertonic saline (ig HS; 0.5 M NaCl, 4 ml) would potentiate these responses before induced increases in P(osmol) in the general circulation could be detected by cerebral osmoreceptors. Adult rats deprived of water overnight and then given intragastric HS consumed much more water in 15-30 min than rats given either pretreatment alone, even though systemic P(osmol) had not yet increased significantly because of the gastric load. In other rats pretreated with an intravenous infusion of 1 M NaCl (2 ml/h for 2 h), plasma levels of vasopressin and oxytocin were considerably elevated 15 and 25 min after intragastric HS treatment, whereas systemic P(osmol) was not increased further. These and other findings are consistent with previous reports that hepatic portal osmoreceptors (or Na(+) receptors) stimulate thirst and neurohypophyseal hormone secretion in euhydrated rats given gastric NaCl loads and indicate that these effects are potentiated when animals are dehydrated.
