RESUMO
BACKGROUND AND OBJECTIVES: The RCM1 leucocyte-reduction filter has been incorporated into two types of blood-donation sets of which one uses back-priming of the leucocyte filter with SAG-M solution. In this study we have compared the leucocyte-reduction efficacy of the RCM1 filter with or without back priming with SAG-M solution. MATERIALS AND METHODS: This study was a retrospective analysis of quality control data of 3529 leucocyte-filtered red cell units. Of these, 1002 whole-blood units were collected in a donation set that was back-primed by letting the SAG-M solution in the final storage bag run backwards through the filter into the bag of concentrated red cells. The remaining 2527 units were collected in a donation set that required no back-priming. Postfiltration leucocyte concentration was assessed using flow cytometry. RESULTS: There was a significant trend towards lower leucocyte concentration in the units in which back-priming of the filter preceded filtration, as compared to units filtered without back-priming [chi2trend= 18.8, degrees of freedom (d.f.) = 1, P < 0.0005]. CONCLUSIONS: Back-priming of the RCM1 filter for red cells with SAG-M solution is superior to no back-priming with regard to leucocyte-reduction efficacy.
Assuntos
Transfusão de Eritrócitos , Leucócitos , Preservação de Sangue/métodos , Eritrócitos , Filtração , Citometria de Fluxo , Humanos , Substitutos do Plasma , Controle de Qualidade , Estudos RetrospectivosRESUMO
In August 1987-July 1988, goiter was diagnosed in 2.3% of neonates in Rzeszów region. It was inactive in the majority of patients. Hypoactive goitre was noted in 10% of examined babies. An increase in goitre incidence in neonates is related to endemic goitre in Rzeszów region.
Assuntos
Bócio Endêmico/epidemiologia , Humanos , Incidência , Recém-Nascido , Polônia/epidemiologiaRESUMO
The theoretical basis of ENG signal analysis in real time was described as well as the equipment and the examination algorithm . 80 ENG examinations were analysed by means of the classical and computer automatic methods. The clinical usefulness of this equipment was presented.
