Serum Prevalence in the Disposal of Blood Bags in a Hemotherapy Nucleus in Três Lagoas MS Brazil

Abstract

Current research analyzes the prevalence of ineptitude of blood donor candidates in a Hemotherapy Nucleus in Três Lagoas MS Brazil between 2007 and 2010. Prevalence in blood bag disposal was determined by positive serology and self-exclusion, coupled to the serumepidemiological characterization of disposals. During the period, some 12,303 people intended to donate blood but only 9,989 were successful, an ineptness prevalence between 15.6% and 22.3%. The main ineptitude causes were risk behavior for STDs (between 13.3% and 19.0%) in the case of male candidates; anemia (between 29.7% and 42.0%) and hypotension (between 17.7% and 43.6%) in female candidates. Within a total of 9.989 blood bags, disposal prevalence during the period ranged between 4.0% and 5.4%. In positive serology, disposal rate lay between 2.9% and 4.2%, whereas by self-exclusion it ranged between 0.9 and 1.3%. The main serological markers which caused disposals of blood bags comprised hepatitis B (anti-HBc – between 36.7% and 46.5%; HBsAg – between 3.8% and 17.8%); hepatitis C (between 7.9% and 26.9%), syphilis (between 5.4% and 22.8%), Chagas´s disease (between 5.1% and 12.1%) and HIV (4.3% and 10.1%). Results show a high ineptitude rate for blood donation, even though disposal rates of blood bags tended towards a decrease which was probably due to campaigns in hemotherapy centers to increase the amount of repeated donors.