RESUMEN
Hypophosphatemia in malnourished children during nutritional recovery (refeeding hypophosphatemia) is recognized as a cause of morbidity and mortality in adolescents with anorexia nervosa but has been only rarely reported to occur in younger children with other diagnoses. Over a 6-year period, we encountered three cases of refeeding hypophosphatemia in malnourished children admitted to a pediatric rehabilitation hospital. Two children had neurologic dysphagia and one had been starved by an abusive parent. The one patient who was symptomatic had obtundation, hemolytic anemia, rhabdomyolysis, and hepatocellular injury that began during refeeding and resolved with treatment. The signs and symptoms, pathophysiology, and treatment of refeeding hypophosphatemia are reviewed.
Asunto(s)
Nutrición Enteral/métodos , Hipofosfatemia/etiología , Desnutrición Proteico-Calórica/sangre , Niño , Preescolar , Métodos de Alimentación , Femenino , Gastrostomía , Humanos , Hipofosfatemia/terapia , Masculino , Fósforo/sangre , Desnutrición Proteico-Calórica/terapiaRESUMEN
A retrospective study of F-4 ejections from 1967-77 revealed extremity injuries during the ejection sequence in 43 of 399 ejections for an injury rate of 10.8%. Of the 43 ejections, there were 111 extremity injuries. The injuries were divided into two groups: severe and minimal. Severe injuries consisted of fractures, dislocations, ligamentous tears, and nerve palsys. There were 76 severe injuries. Minimal injuries consisted of contusions, lacerations, and minor sprains. There were 35 minimal injuries. The 76 severe injuries were divided into 50 upper-extremity and 26 lower-extremity injuries. The majority of the severe upper-extremity injuries involved the proximal joints and the majority of the severe lower-extremity injuries involved the distal joints. When the windblast/windflail injuries were compared to the various variables, correlation was seen with the knots indicated airspeed (KIAS), aircraft attitude, and aircraft type. The incidence of extremity injury increases with increased airspeed and a nose-down attitude, and decreases in the RF-4C aircraft configuration.
Asunto(s)
Accidentes de Aviación , Medicina Aeroespacial , Traumatismos del Brazo/etiología , Traumatismos de la Pierna/etiología , Humanos , Estudios RetrospectivosAsunto(s)
Alcanosulfonatos/metabolismo , Antipirina/metabolismo , Microsomas Hepáticos/enzimología , Triyodotironina/farmacología , Alcanosulfonatos/administración & dosificación , Alcanosulfonatos/sangre , Alcanosulfonatos/orina , Aminopirina N-Demetilasa/metabolismo , Antipirina/administración & dosificación , Antipirina/sangre , Antipirina/orina , Remoción de Radical Alquila , Humanos , Consentimiento Informado , Cinética , Masculino , Metilaminas/administración & dosificación , Metilaminas/sangre , Metilaminas/orina , Estadística como Asunto , Factores de TiempoAsunto(s)
Antipirina/metabolismo , Hipertiroidismo/metabolismo , Hipotiroidismo/metabolismo , Adulto , Aminopirina N-Demetilasa/metabolismo , Antipirina/administración & dosificación , Electrocardiografía , Femenino , Semivida , Humanos , Hipertiroidismo/radioterapia , Hipotiroidismo/tratamiento farmacológico , Radioisótopos de Yodo/uso terapéutico , Masculino , Mesilatos/administración & dosificación , Mesilatos/metabolismo , Microsomas Hepáticos/enzimología , Persona de Mediana Edad , Factores de Tiempo , Triyodotironina/uso terapéuticoRESUMEN
Barium sulfate additive, in amounts ranging from 5% to 60%, causes a progressive reduction in polymerization temperature of the cement without appreciably altering the polymerization time. Concurrently, the mechanical strength of the cement, as determined in shear, decreases with increasing concentration of barium additive. Although inclusion of barium sulfate in acrylic bone cement is primarily used for radiographic contrast purposes, its possible effects on release of monomer and other local mechanisms seem not to have been measured.