Neonatology
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Newborn babies, even if extremely preterm, show responses to pain. The major stress responses seen with surgical pain are associated with serious adverse medical outcomes. There is an ethical imperative to consider pain relief in babies, despite the fact that they cannot verbalise their experience. ⋯ Topical anaesthetic creams reduce the pain response when used in anticipation of phlebotomy or vascular cannulation. Intra-oral sucrose is effective cover for procedures associated with mild to moderate distress, but its role in preterm infants is uncertain. Nursing interventions to reduce environmental stress, although commonly used, have not consistently been shown to be of benefit.
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Invasive ventilation via the endotracheal tube is one of the most common therapeutic interventions performed in preterm infants with respiratory failure. Respiratory distress syndrome (RDS) occurs in about 50% of preterm infants born at less than 30 weeks of gestational age. Mechanical ventilation using conventional or high-frequency ventilation and surfactant therapy have become the standard of care in management of preterm infants with RDS. ⋯ Randomized controlled trials comparing conventional mechanical ventilation and high-frequency ventilation, using 'optimal ventilatory strategies', have shown no significant difference in rates of BPD. Use of noninvasive ventilation, such as nasal continuous positive airway pressure and nasal intermittent positive pressure ventilation has shown a significant decrease in postextubation failure as well as reduced incidence of BPD. Optimal ventilatory strategy in preterm infants with RDS may begin in the delivery room with application of sustained inflation to establish functional residual capacity, followed by surfactant therapy and rapid extubation to noninvasive ventilation to decrease the incidence of BPD and improve overall outcome.
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Since ancient times, various methods have been used to revive apparently stillborn infants; many were of dubious efficacy and had the potential to cause harm. Based largely on studies of acutely asphyxiated term animal models, clinical assessment and positive pressure ventilation have become the cornerstones of neonatal resuscitation over the last 40 years. Over the last 25 years, care of extremely preterm infants in the delivery room has evolved from a policy of indifference to one of increasingly aggressive support. ⋯ Therefore, concerning neonatal 'resuscitation', it is time to 'call it' something else. This will allow us to dispassionately distinguish preterm infants who are dead, or nearly dead, from those who are merely at high risk of parenchymal lung disease. We may then be able to refine our interventions and determine what methods of support benefit these infants most.
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Perinatal hypoxia-ischemia or birth asphyxia is a serious complication with a high mortality and morbidity. For decades, neuroprotective options have been explored to reduce reperfusion and reoxygenation injury to the brain, which accounts for a substantial part of birth asphyxia-related brain damage. ⋯ Since hypothermia has been proven to be beneficial for a selected group of asphyxiated neonates, we assume that a combination of this treatment option with a pharmacological means of neuroprotection will be the appropriate approach in the future. Finally, it is important to consider possible gender effects in view of the discussed pharmacological strategies.
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Respiratory distress syndrome (RDS) is a severe form of neonatal respiratory distress which occurs almost exclusively in premature infants. At present, the diagnosis is based on radiological findings and clinical course. Lung ultrasound in RDS has not yet been fully assessed. ⋯ We found that lung ultrasound is a reliable tool in the diagnosis of RDS. We speculate that it may be considered as a screening method for the diagnosis of RDS, and for early administration of surfactant in preterm infants with respiratory distress.