[Nurse's role in the processes of hospital humanization and procedural pain relief in children]. / L'umanizzazione dell'ospedale: il ruolo dell'infermiere nella riduzione della paura e dello stress nel bambino, con particolare riferimento alla procedura del prelievo venoso periferico.

In childhood, hospital admission is frequently seen as something unexplanable and close to a "punishment". Involving parents/caretakers in the process of care is critical for the child to cope with the distress arising from hospital contacts and medical procedures. However, some grey zone remains for common procedures as venipuncture in hospital and ambulatory settings. We have conducted a literature review, searching for articles focused on procedural distress reduction/control in children. Several studies show that communication play a critical role and that children as young as 5 are able to "read" the way nurses and doctors interact with them and their approach is very important in reducing procedural distress. However, children attitude toward communication of health information may not be so linear, because they tend to continuously shift from a position of "passive bystander" to a "active participant" one, and viceversa. Nurse's role is crucial for the reduction of procedural distress because of her/his frequent contact with the young patients, but often she/he does not have the skills to help children to cope with procedural distress. Several approaches to this issue are discussed.

Sleep and delirium in the intensive care unit.

Intensive Care Unit (ICU) patients almost uniformly suffer from sleep disruption. Even though the role of sleep disturbances is not still adequately understood, they may be related to metabolic, immune, neurological and respiratory dysfunction and could worsen the quality of life after discharge. A harsh ICU environment, underlying disease, mechanical ventilation, pain and drugs are the main reasons that underlie sleep disruption in the critically ill. Polysomnography is the gold standard in evaluating sleep, but it is not feasible in clinical practice; therefore, other objective (bispectral index score [BIS] and actigraphy) and subjective (nurse and patient assessment) methods have been proposed, but their adequacy in ICU patients is not clear. Frequent evaluation of neurological status with validated tools is necessary to avoid excessive or prolonged sedation in order to better titrate patient-focused therapy. Hypnotic agents like benzodiazepines can increase total sleep time, but they alter the physiological progression of sleep phases, and decrease the time spent in the most restorative phases compared to the phases normally mediated by melatonin; melatonin production is decreased in critically ill patients, and as such, exogenous melatonin supplementation may improve sleep quality. Sleep disruption and the development of delirium are frequently related, both because of sleep scarcity and inappropriate dosing with sedatives. Delirium is strongly related to increased ICU morbidity and mortality, thus the resolution of sleep disruption could significantly contribute to improved ICU outcomes. An early evaluation of delirium is strongly recommended because of the potential to resolve the underlying causes or to begin an appropriate therapy. Further studies are needed on the effects of strategies to promote sleep and on the evaluation of better sleep in clinical outcomes, particularly on the development of delirium.