We evaluated coproporphyrin in the first urine passed by newborn infants with and without meconium aspiration, by spectrophotometric analysis and thin-layer and "high-performance" liquid chromatography. Urines of newborn infants without meconium aspiration contained only very small quantities of coproporphyrin, detected, after partial purification, by "high-performance" liquid chromatography. U...

INTRODUCTION Pertussis is a highly contagious disease caused by Bordetella pertussis. It poses a high morbidity and mortality rate, especially among infants younger than 6 months old. In Argentina, pertussis incidence and mortality have increased over the past three decades. OBJETIVE To establish Bordetella pertussisantibody titers among pregnant women in their third trimester and among newbo...

Healthcare-associated infections are a major problem in newborn infants, considering their high morbidity, mortality, and long-term sequelae. In preterm infants, it has been shown that skin and gastrointestinal tract colonization undergoes variations compared to healthy term infants, and that preterm infants are more exposed to nosocomial microorganisms given their higher probability of being a...

meningitis, pneumonia, and sepsis in newborns and young infants (age < 60 days) are the main causes of childhood mortality in developing countries. even though streptococcus pneumonia is the most commonly detected microorganism in pediatric bacterial meningitis, it is rare in newborn infants. the following article reports a case of pneumococcal meningitis that was detected early in a newborn in...

There is a need to explore novel methods of assessing bone health in sick preterm infants. This study of the speed of sound in the long bones of newborn term and preterm infants shows that, in this population, this technique is not site specific and has a high degree of interobserver and intraobserver precision. The speed of sound in newborn infants is primarily dependent on gestation rather th...

Since 1979, the State Department of Health Laboratory of Utah has screened 108,256 newborn infants for hypothyroidism. The incidence of diagnosed hypothyroid children during this period was 1 per 3,800 live births. Utilizing a normal range of serum thyroid hormone levels in newborn infants of 8.0 to 26.0 micrograms per dl, the incidence of normal infants initially considered hypothyroid was les...

Clinical and CSF studies in newborn infants with neurological abnormalities. Thirty-four infants with abnormal neurological signs of no specific aetiology and 49 infants without abnormal neurological signs were selected in the newborn period. After a detailed neurological examination, the hyperexcitability syndrome was diagnosed in 18 and the apathy syndrome in 16 infants. The apathy syndrome w...