La malnutrition à l’admission en réanimation pédiatrique est fréquente et associée à une augmentation de la morbi-mortalité. Néanmoins, la plupart des études, limitées à une évaluation statique du statut nutritionnel, ne permettent pas une analyse fine de l’impact de la malnutrition. Une approche systémique associerait en plus d’une évaluation nutritionnelle statique, une analyse dynamique dans le temps, une analyse de la composition corporelle et une analyse physiopathologique et étiologique. Cette approche globale a été appliquée dans 4 études prospectives observationnelles, incluant des enfants sévèrement agressés de plus de 36 semaines d’âge corrigé. Il en ressort que la dénutrition globale à l’admission est fréquente (23,7%) et que la cassure des courbes de croissance avant l’admission est associée à une augmentation de la durée de séjour de 3 jours. L’enfant sévèrement agressé présente à l’admission des taux plasmatiques abaissés de 6 micronutriments impliqués dans le stress oxydant (Sélénium, Zinc, Cuivre, Vitamines C, E et bêta-carotène), proportionnellement au nombre de défaillances d’organe. La dénutrition globale et la fonte musculaire acquises en cours de séjour sont des phénomènes fréquents, précoces et importants, associés à une durée de séjour prolongée. Les changements métaboliques liés à l’agression sévère conduisent à une dénutrition. Ces processus adaptatifs sont parfois dépassés et la dénutrition pourra à son tour aggraver le pronostic. La bonne compréhension de la physiopathologie sous-jacente et un suivi systémique et systématique du statut nutritionnel sont les éléments indispensables à l’évaluation des stratégies nutritionnelles / Malnutrition at pediatric Intensive care unit (PICU) admission is frequent and associated with impaired outcomes. However, most studies have focused solely on a static definition. A holistic approach would improve the description of malnutrition: this would include both a static and dynamic assessment of nutritional status, together with body composition assessment and with malnutrition classified based on its patho-physiology and etiology. This holistic assessment of malnutrition has been applied and examined in four observational studies which included critically ill children older than 36 gestational weeks (corrected age). These found that malnutrition was frequent at PICU admission (27.3%) and faltering growth prior to PICU admission was associated with an increased length of PICU stay (+3 days). Critically ill children present at admission with decreased plasma levels of 6 micro-nutrients (Selenium, Copper, Zinc, Vitamin C, E and beta-carotene) involved in anti-oxidative stress pathways. Nutritional status deterioration during PICU stay, and associated muscle mass loss occurred frequently and were intense. This early phenomenon was associated with extended length of PICU stay. A profound critical illness related metabolic shift leads to malnutrition as an adaptive process. However, malnutrition may also negatively impact on outcomes in this setting. These studies have led to a clearer understanding of the underlying patho-physiology. This, combined with a more systematic and holistic nutritional assessment, will enable implementation and assessment of nutritional strategies aiming to improve the functional outcome of critically ill children

Nowadays the parental presence in the pediatric intensive care units (PICU) is quite common. Building a fellowship between parents and health care staff and high quality parents' integration into the care is a very demanding process. First of all, the success of this process largely depends upon the nurse. It is the very nurse who leads, educates, supports and also professionally integrates parents into their child's care. In addition, critically ill child's care in cooperation with parents is complicated by a high parental stress level, child's serious condition and high professional and technical requirements posed to the nurse. The graduation thesis concentrates on the parents' integration into the care of a critically ill child from the nurse's point of view. The goal of this thesis was to describe the general conditions of parents' integration into the critically ill child's care and to map the actual state of the cooperation within the nurse ? parent ? critically ill child relation from the nurse's point of view. Other goals included the analysis of nurse's feeling of readiness for work with parents of critically ill children, and elaboration of a booklet concerning the initial introduction of an intensive care and resuscitation unit for infants and older children for better parents' awareness. In the research part of the thesis a qualitative research was used. The data collection technique was a semi-standardized interview. A research sample was represented by seven nurses working in the sphere of the critically ill children care in four selected hospitals in the Czech Republic. The study took place in the period starting May 2011 till July 2011. The research results revealed that the parental integration conditions are not quite optimal. First of all, in this sphere the nurses pointed to a limited accommodation capacity for parents, lack of supporting services and unsatisfactory site layout of the intensive care units. The nurses expressed their readiness to the closer cooperation with critically ill children's parents in the basic nursing sphere, mostly, thereafter, in the sphere of hygiene care. The parental cooperation in the special-care sphere was accepted rather negatively by the respondents. As the research results show, most of the nurses consider the work with parents psychologically very demanding and during their school education they had never been prepared for it by anybody. Findings flowing from the research results gave birth to the information booklet that is a basic informational and educational material for parents of children admitted to the intensive and resuscitation care unit for older children and infants in Hradec Králové University Teaching Hospital. It also represents a detailed instruction for a similar material for other facilities of this type and, last but not least, it facilitates the whole process of initial parents' education for nurses. This graduation thesis can also assist in the education of children's nurses, help students and nurses working with critically ill children's parents understand the "Family-centered care" principles and their practical introduction.