Influencia de la concentración de calcio en el líquido de hemodiálisis sobre el control de la tensión arterial

Background

Hypertension is a highly prevalent disorder among patients undergoing haemodialysis. It contributes to greater cardiovascular risk and must be controlled. However, despite dietary measures, haemodialysis regimen optimisation and pharmacological treatment, some patients in our units continue to maintain high blood pressure levels. The objective of the study is to demonstrate that reducing calcium in dialysis fluid can help treat hypertension patients undergoing haemodialysis.

Correction to: Acetyl-L-carnitine confers neuroprotection against lipopolysaccharide (LPS) -induced neuroinflammation by targeting TLR4/NFκB,autophagy, inflammation and oxidative stress

Metabolic Brain Disease - A Correction to this paper has been published: 10.1007/s11011-021-00721-8     

Effectiveness of teaching methods for toothbrushing in preschool children

Three different methods of instruction and motivation were used to assess the learning process and ability of preschool children in performing toothbrushing. Forty children from a private nursery of Brasília, DF, Brazil, were divided into 2 groups according to age (3-4 years old and 5-6 years old). The following methods of instruction and reinforcement were applied: I--audiovisual; II--child as a model; III--individual instruction. Professional prophylaxis was then performed and the children remained 48 hours without any kind of oral hygiene. Plaque disclosing and plaque index were carried out and recorded. The children subsequently brushed their teeth according to each method of instruction and a new plaque index was recorded. The data were analyzed statistically using the Student t-test and the comparison of two proportions. The results showed that the children of both groups reduced plaque index and that the individual instruction method was superior (p<0.05) to the others at all ages. Children older than 5 years of age were able to learn and accomplish toothbrushing better than younger children.     

The Caries Assessment Spectrum and Treatment (CAST) index: rational and development

Serious difficulties in reporting results were encountered when using ICDAS II and PUFA separately in an epidemiological survey in a child population in Brazil. That necessitated the development of a comprehensive but pragmatic caries assessment index. This publication describes the rationale, development and content of a novel caries assessment index. Strengths and weaknesses of ICDAS II, PUFA and other indices were analysed. The novel caries index developed for use in epidemiological surveys is termed 'Caries Assessment Spectrum and Treatment' (CAST). 'Spectrum' indicates what is considered the main strength of the new index - its usefulness in describing the complete range of stages of carious lesion progression: from no carious lesion, through caries protection (sealant) and caries cure (restoration) to lesions in enamel and dentine, and the advanced stages of carious lesion progression in pulpal and tooth-surrounding tissue. CAST combines elements of the ICDAS II and PUFA indices, and the M- and F-components of the DMF index. A DMF score can easily be calculated from the CAST score, thereby enabling retention of the use of existing DMF scores. The CAST index for use in epidemiological surveys is very promising. It should be validated and its reliability and usefulness be tested in different age groups in different countries and cultures.