RESUMEN
An experimental acoustical re-injection system based on a wideband single-sideband generator has been developed. This has been used to present a clinical Doppler system with a simulated Doppler shift, as would be obtained from a unidirectional moving reflector. Development of this approach should permit independent electronic testing of forward and reverse channels, including mean and peak frequency calculations and measurement of channel separation. Sideband suppression of 28 dB minimum has been obtained for a range of ultrasound frequencies from 2.5 MHz to 10 MHz and audio frequency shifts up to 10 kHz.
Asunto(s)
Equipos y Suministros/normas , Ultrasonido , Humanos , Ciencia del Laboratorio ClínicoAsunto(s)
Contaminantes Ocupacionales del Aire/efectos adversos , Exposición a Riesgos Ambientales , Hipersensibilidad/etiología , Enfermedades Profesionales/etiología , Hipersensibilidad Respiratoria/etiología , Actitud Frente a la Salud , Humanos , Hipersensibilidad/prevención & control , Enfermedades Profesionales/prevención & control , Hipersensibilidad Respiratoria/prevención & control , Encuestas y Cuestionarios , VentilaciónRESUMEN
Mitochondrial diseases, or encephalomyopathies, are an uncommon, heterogeneous group of disorders with variable clinical course and presentation. Many of these patients present for surgery, or undergo anaesthesia in the course of investigation of their illness. Unfortunately, little information exists on their management in anaesthetic texts and the literature. We report on the anaesthetic management of a paediatric patient with mitochondrial disease, and briefly discuss the pathophysiology and anaesthetic implications of these disorders.
Asunto(s)
Anestesia por Inhalación , Encefalomiopatías Mitocondriales/fisiopatología , Trastornos de Deglución/terapia , Nutrición Enteral , Femenino , Fundoplicación , Reflujo Gastroesofágico/cirugía , Gastrostomía/efectos adversos , Humanos , Lactante , Imagen por Resonancia Magnética , Encefalomiopatías Mitocondriales/diagnóstico , Espasticidad Muscular/diagnóstico , Reflejo Anormal/fisiología , Infección de la Herida Quirúrgica/cirugía , Trastornos de la Visión/diagnósticoRESUMEN
Within the context of a post-acute rehabilitation setting, association and agreement between results from the Neurobehavioural Cognitive Status Examination (NCSE) and from the neuropsychological (NP) evaluation are examined. All participants (n = 48) had sustained a severe traumatic brain injury and NCSE testing preceded NP testing by an average of 1 month. A significant relationship and fair classification agreement (i.e. presence or absence of cognitive impairment) was found between the overall results from NCSE and NP evaluation. Significant relationships were also observed between most NCSE subtests and paired NP tests thought to be assessing the same cognitive domains. However, the classification agreement (i.e. the presence or absence of deficient performance) between most NCSE subtests and paired NP tests was poor. The findings are discussed from the standpoint of individual treatment planning.