RESUMO
The development of 50 children relative to the fetal heart rate patterns they demonstrated during labor and delivery was prospectively studied. Normal deceleration patterns were recorded for 12 of the children, while 16 were recorded as moderately severe and 22 as severe variable or late deceleration patterns. The parity and socioeconomic status of the mothers and the sexes of the infants were similar among the groups. A statistically significant developmental difference in favor of children with normal fetal heart rate patterns was seen in the first year of life. However, at 6 to 9 years of age the difference in neurologic and cognitive development was no longer evident. These data do not support the hypothesis that brief abnormal fetal heart rate patterns recorded during labor are indicative of irreversible central nervous system injury.
Assuntos
Desenvolvimento Infantil , Frequência Cardíaca Fetal , Inteligência , Trabalho de Parto , Exame Neurológico , Logro , Criança , Feminino , Seguimentos , Humanos , Gravidez , Estudos Prospectivos , Desempenho PsicomotorRESUMO
Bilateral hearing loss occurred in 9.7% of infants who survived despite very low birth weight (less than or equal to 1500 gm), 16.7% of infants who survived neonatal seizures, and 28.6% of infants who survived both low birth weight and neonatal seizures. All neonates received treatment in a single neonatal intensive care unit between 1976 and 1980. Twenty-two of 36 hearing-impaired children were normal physically and mentally, with IQ scores of greater than or equal to 85. Significant neonatal predictors of hearing loss in high-risk premature infants (less than or equal to 36 weeks gestation), as determined by multivariable testing, were prolonged respirator care, high serum bilirubin concentration, and hyponatremia. Exchange transfusions were associated with a decreased risk of hearing loss.
Assuntos
Perda Auditiva Neurossensorial/etiologia , Recém-Nascido de Baixo Peso , Audiometria de Resposta Evocada , Peso ao Nascer , Desenvolvimento Infantil , Feminino , Seguimentos , Idade Gestacional , Perda Auditiva Neurossensorial/diagnóstico , Humanos , Lactente , Recém-Nascido , Doenças do Prematuro , Unidades de Terapia Intensiva Neonatal , Masculino , Estudos Prospectivos , Risco , Convulsões/complicações , Fatores Sexuais , Estatística como AssuntoRESUMO
The abundance of Aeromonas hydrophila was measured in 147 natural aquatic habitats in 30 states and Puerto Rico. Viable cell counts were used to estimate density at all sites by using Rimler-Shotts medium, a differential presumptive medium for A. hydrophila. Temperature, pH, conductivity, salinity, and turbidity were measured simultaneously with water sample collection. The density of A. hydrophila was higher in lotic than in lentic systems. Saline systems had higher densities of A. hydrophila than did freshwater systems. A. hydrophila could not be isolated from extremely saline, thermal, or polluted waters, even though it was found over wide ranges of salinity, conductivity, temperature, pH, and turbidity. Of the water quality parameters measured, only conductivity was significantly regressed with density of A. hydrophila.