[Organizational appropriateness evaluation of hospital discharges related to DRGs at high risk of inappropriateness in a pediatric observation ward from 2000 to 2004]. / Valutazione della appropriatezza organizzativa dei ricoveri ordinari attribuiti ai DRG ad alto rischio di inappropriatezza effettuati in un Reparto di Osservazione Pediatrica nel periodo 2000-2004.

The aim of the study is to measure and to describe organizational appropriateness of a Paediatric Temporary Observation Ward in the Emergency Department. We selected hospital discharges related to 43 DRGs at high risk of inappropriateness (DPCM 29/11/2001); we studied the relationship between appropriateness and patient's or discharge characteristics. We also investigated the inappropriateness to find tools for improving ward's efficiency. Assessment of selected paediatric clinical records was performed using PRUO protocol and showed that 41.5% of hospital discharges are completely appropriated and only 13.8% are completely not appropriated and, consequently, could be provided in a different organizational setting. Inappropriateness in our study is lower than the expected one; this finding shows that the ward under investigation is able to provide health assistance with good level of appropriateness. The used tool to evaluate appropriateness is a modified PRUO version, specific for pediatric hospital stays. Pediatric PRUO protocol is easy to be applied even if reasonable and shared evaluation criteria do not seem able to recognise some peculiar characteristics of Pediatric Temporary Observation Ward in the Emergency Department.

The "Telefono Rosso": a service for the prevention of birth defects and for the evaluation of teratogenic risk.

The "Telefono Rosso" ("Red telephone") is a specialized service for preconceptional counselling and teratogenic risk evaluation. In both cases the choice of telephone communication allows to reach a wide basin of users with personalized information. The service finds one of its main reasons in the marked disinformation which exists in this field and in the wrong risk perception shown by a high proportion of users. In addition to serving the community to prevent birth defects and to prevent some induced abortions, the "Telefono Rosso" represents a unique opportunity to add to the current body of knowledge by documenting the outcomes of pregnancies exposed to a variety of agents. In this respect the "Telefono Rosso" may be considered an additional source of post-marketing surveillance.

Interleukin 2 proliferative response by cord blood mononuclear cells of term and preterm neonates.

The results of previous studies on the proliferative response of resting cord blood mononuclear cells (CBMC) of term neonates to human recombinant interleukin 2 (hrIL-2) are contrasting. Some authors have reported a good and others a poor response. In our study we have obtained a significant reactivity, compared with the response of resting peripheral blood mononuclear cells (PBMC) of adult subjects, of resting CBMC to varying quantities of hrIL-2 in the absence of any known mitogenic or antigenic stimuli. Most responding cells was CD3 positive. Both CD4-positive and CD8-positive cells responded. However, we observed a more marked increase of the percentage of the CD4-positive T cells and a clear reduction of the percentage of the CD21-positive cells (B-lymphocytes) testing CBMC rather than PBMC of the adult subjects. The percentage of the NK cells was reduced in both the categories of subjects. Moreover, we have examined the reactivity to hrIL-2 of CBMC of preterm neonates. The results showed that this response is low. The peculiar level and kinetic of CBMC proliferative response to hrIL-2 are discussed.

Immunodeficiency and plasma zinc levels in children with Down's syndrome: a long-term follow-up of oral zinc supplementation.

To evaluate the possible effect of zinc treatment on immune disorders in children with Down's syndrome (DS), 38 noninstitutionalized DS children were investigated. Twenty-four patients (63.2%) had plasmatic zinc levels lower than 0.70 microgram/dl ("hypozinkemic," LZn) and 14 patients (36.8%) had levels higher than 0.75 microgram/dl ("normozinkemic," NZn). No correlation was found between the zinc deficiency and recurrence and/or intensity of infections. The absolute numbers of peripheral lymphocytes, the percentages of B lymphocytes, total T cells, and serum IgG, IgA, and IgM levels did not differ between the DS children and the controls. Eight (21%) patients had CD4+ T cell counts below the lowest value for the controls. Seventeen (44%) DS patients had increased levels of CD8+ T cells. The mean percentage of Leu 7+ cells in DS subjects (22.8 +/- 12.9%) was significantly higher than that in controls (15.8 +/- 4.8%) (P less than 0.01). Notably, Ig levels and numbers of lymphocytes in each subset did not show any significant difference in NZn and LZn trisomic subjects. On the contrary the peripheral blood mononuclear cells (PBMCs) from LZn DS children showed a significantly lower proliferative response to phytohemagglutinin (PHA) (S.I. = 23.4 +/- 22.4) than that of PBMCs from NZn DS children (S.I. = 46.1 +/- 21.5, P less than 0.01). A significant increase in DNA synthesis was obtained after oral administration of zinc sulfate (20 mg/kg/day, for 2 months). The lymphocyte response to PHA appeared to be normal in all patients up to 6 months after the end of the zinc treatment and it became low in half of the patients 22 months after therapy.