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Search Results: 1 - 10 of 488555 matches for " Luiz Oscar Cardoso; Figueir?a "
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Efetividade de três esquemas com sulfato ferroso para tratamento de anemia em gestantes
Souza,Ariani Impieri de; Batista Filho,Malaquias; Ferreira,Luiz Oscar Cardoso; Figueira,José Natal;
Revista Panamericana de Salud Pública , 2004, DOI: 10.1590/S1020-49892004000500005
Abstract: objective: to evaluate the effectiveness of three regimens employing ferrous sulfate to treat pregnant women with anemia. methods: the study was carried out at the women's health center of the pernambuco institute of maternal and child health in the city of recife, pernambuco, brazil, from may 2000 to december 2001. a randomized clinical trial with blinded laboratory analysis was conducted. iron (60 mg) was administered as 300-mg ferrous sulfate tablets. the women were allocated to three treatment groups, according to the frequency of ingesting the tablets: once a week (48 women), twice a week (53 women), and once a day (49 women). the groups were compared for the values for hemoglobin (hb) concentration, mean corpuscular volume, and ferritin before and after the treatment. results: before the intervention, the groups were homogeneous. they had the following mean (± standard deviation) concentrations of hemoglobin: 10.2 ± 0.5 g/dl for the group receiving iron once a week, 10.2 ± 0.6 g/dl for the group receiving iron twice a week, and 10.1 ± 0.6 g/dl for the group receiving iron once a day. the means of corpuscular volume were, respectively: 88.5 ± 5.0 fl, 87.6 ± 5.9 fl, and 88.7 ± 5.1 fl. the respective medians for ferritin were 30.2 ng/ml, 37.1 ng/ml, and 52.9 ng/ml. the cure rate (hb > 11 g/dl) was 27% in the patients treated once a week, 34% in those treated twice a week, and 47% in the women treated daily. treatment failure (hemoglobin < 10 g/dl) was seen in 41.6%, 13.2%, and 2.0% of the patients in the respective groups. interruption of treatment due to diarrhea or epigastric pain occurred only among the patients treated daily. conclusion: the regimen with iron administered daily is still the best option for treating anemia. however, treatment with ferrous sulfate administered twice a week is an alternative for patients who are unable to adhere to daily treatment.
Eficácia da suplementa??o de ferro associado ou n?o à vitamina A no controle da anemia em escolares
Pereira, Rute Candida;Ferreira, Luiz Oscar Cardoso;Diniz, Alcides da Silva;Batista Filho, Malaquias;Figueira, José Natal;
Cadernos de Saúde Pública , 2007, DOI: 10.1590/S0102-311X2007000600016
Abstract: this study aimed to evaluate the efficacy of weekly iron supplementation with or without vitamin a in the treatment of iron deficiency anemia, using an experimental, randomized, non-placebo-controlled design in 1999. 267 schoolchildren 6 to 14 years of age were randomized to two treatment groups: one group (144) received 200mg iron sulfate alone, with 40mg of elemental iron, while the other (123) received the same iron supplementation dose plus 10,000 iu of vitamin a (both groups for 30 weeks). final anemia prevalence was reduced from 48.4% to 17.7% (p < 0.001) in the group receiving iron supplementation alone and 58.1% to 14.3% (p < 0.001) in the group receiving iron plus vitamin a. there was no significant difference between the groups at the end of the study according to mean hb (p = 0.355) and anemia (p = 0.479). there was a significant correction for iron deficiency anemia with weekly iron-alone supplementation, but with no additional advantage of vitamin a. new studies on the synergism between these two micronutrients are recommended.
Clinical and epidemiological features of definitive and presumed loxoscelism in S o Paulo, Brazil
MáLAQUE Ceila Maria Sant'Ana,CASTRO-VALENCIA Jaime Enrique,CARDOSO Jo?o Luiz Costa,FRAN?A Francisco Oscar de Siqueira
Revista do Instituto de Medicina Tropical de S?o Paulo , 2002,
Abstract: A retrospective study analysed 359 proven or presume cases of loxoscelism seen at the Hospital Vital Brazil, Instituto Butantan, S o Paulo, Brazil, between 1985 and 1996. The spider was identified in 14%. The bites occurred predominantly in the urban areas (73%) between September and February. Patients > 14 years were commonest inflicted (92%) and 41% were bitten while getting dressed. Only 11% sought medical care within the first 12 hours post bite. Cutaneous loxoscelism was the commonest form presenting (96%); commonest manifestations were: pain (76%), erythema (72%), edema with enduration (66%), ecchymosis (39%). Skin necrosis occurred in 53% of patients, most frequently seen on trunk, tigh and upper arm, and when patients seek medical care more than 72 hours after bite. Local infection was detected in 12 patients (3%). Hemolysis was confirmed in 4 cases (1.1%). Generalised cutaneous rash, fever and headache were also observed in 48% of the total of patients. None of them had acute renal failure or died. Treatment usually involved antivenom administration (66%), being associated with corticosteroids (47%) or dapsone (30%). Presumptive diagnosis of loxoscelism may be established based on clinical and epidemiological findings. Further investigations are required to prove the value of antivenom and other treatment schedules.
Preven??o e tratamento da anemia nutricional ferropriva: novos enfoques e perspectivas
Batista Filho, Malaquias;Ferreira, Luiz Oscar Cardoso;
Cadernos de Saúde Pública , 1996, DOI: 10.1590/S0102-311X1996000300015
Abstract: the authors briefly describe the epidemiology of anemia, the goals established by the united nations to combat the problem worldwide, and the difficulties encountered in applying proven effective strategies in public health services to prevent and cure anemia in pregnant women and children, both of which are prime high-risk groups. they analyze recent research aimed at four objectives related to prevention and cure: improving treatment efficacy; increasing effectiveness; reducing costs; and decreasing unwanted side effects. the study indicates that ongoing research could improve prospects for treatment through public health services.
Preven o e tratamento da anemia nutricional ferropriva: novos enfoques e perspectivas
Batista Filho Malaquias,Ferreira Luiz Oscar Cardoso
Cadernos de Saúde Pública , 1996,
Abstract: Os autores descrevem sumariamente o quadro epidemiológico das anemias, as propostas programáticas estabelecidas pelas Na es Unidas para a revers o do problema em escala internacional e as dificuldades atuais para a aplica o de estratégias de reconhecida efetividade na área da saúde para a preven o e cura das anemias nos segmentos populacionais mais expostos, as crian as e as gestantes. Analisam o estágio atual das pesquisas dirigidas para quatro objetivos simultaneos: aumento da eficácia e efetividade, redu o de custos e de efeitos colaterais dos esquemas medicamentosos de preven o e tratamento. Consideram que as pesquisas em curso podem melhorar radicalmente as perspectivas de uma interven o bem sucedida no enfrentamento do problema através do setor saúde.
Clinical and epidemiological features of definitive and presumed loxoscelism in S?o Paulo, Brazil
MáLAQUE, Ceila Maria Sant'Ana;CASTRO-VALENCIA, Jaime Enrique;CARDOSO, Jo?o Luiz Costa;FRAN?A, Francisco Oscar de Siqueira;BARBARO, Kátia Cristina;Hui, Wen FAN;
Revista do Instituto de Medicina Tropical de S?o Paulo , 2002, DOI: 10.1590/S0036-46652002000300005
Abstract: a retrospective study analysed 359 proven or presume cases of loxoscelism seen at the hospital vital brazil, instituto butantan, s?o paulo, brazil, between 1985 and 1996. the spider was identified in 14%. the bites occurred predominantly in the urban areas (73%) between september and february. patients > 14 years were commonest inflicted (92%) and 41% were bitten while getting dressed. only 11% sought medical care within the first 12 hours post bite. cutaneous loxoscelism was the commonest form presenting (96%); commonest manifestations were: pain (76%), erythema (72%), edema with enduration (66%), ecchymosis (39%). skin necrosis occurred in 53% of patients, most frequently seen on trunk, tigh and upper arm, and when patients seek medical care more than 72 hours after bite. local infection was detected in 12 patients (3%). hemolysis was confirmed in 4 cases (1.1%). generalised cutaneous rash, fever and headache were also observed in 48% of the total of patients. none of them had acute renal failure or died. treatment usually involved antivenom administration (66%), being associated with corticosteroids (47%) or dapsone (30%). presumptive diagnosis of loxoscelism may be established based on clinical and epidemiological findings. further investigations are required to prove the value of antivenom and other treatment schedules.
Long-Term Trends in Near-Surface Wind Speed over the Southern Hemisphere: A Preliminary Analysis  [PDF]
Luiz Felipe N. Cardoso, Wanderson Luiz Silva, Maria G. A. Justi da Silva
International Journal of Geosciences (IJG) , 2016, DOI: 10.4236/ijg.2016.77070
Abstract: Many studies that discuss observed trends in wind speed focus primarily on regions of the Northern Hemisphere, so there is little research directed to the Southern Hemisphere. This paper pre- sents a preliminary investigation of possible statistically significant trends in wind speed over the Southern Hemisphere, with a detailing on the South American continent, between 1961 and 2008. Thus, data from the 20th Century Reanalysis V2 were examined with statistical tests of Mann- Kendall and Sen’s Bend in order to establish the significance and the magnitude of detected trends. The previous results indicate statistically significant trends of increase in average wind speedover the equatorial region of the planet, as well as in the eastern sector of the South Pacific and South Atlantic Oceans. In South America, the most significant trends of decrease in wind speed were noted in some areas of the southern sector of the continent, even as in the adjacent Atlantic Ocean to Argentina. Further studies should be performed to physically support the occurrence of these trends in wind speed. In addition, other observed and reanalysis data sets should be explored to update and corroborate these primary analyzes.
Eigenvalues of a H-generalized join graph operation constrained by vertex subsets
Domingos M. Cardoso,Enide A. Martins,Maria Robbiano,Oscar Rojo
Mathematics , 2012,
Abstract: Considering a graph $H$ of order $p$, a generalized $H$-join operation of a family of graphs $G_1,..., G_p$, constrained by a family of vertex subsets $S_i \subseteq V(G_i)$, $i=1,..., p,$ is introduced. When each vertex subset $S_i$ is $(k_i,\tau_i)$-regular, it is deduced that all non-main adjacency eigenvalues of $G_i$, different from $k_i-\tau_i$, for $i=1,..., p,$ remain as eigenvalues of the graph $G$ obtained by the above mentioned operation. Furthermore, if each graph $G_i$ of the family is $k_i$-regular, for $i=1,..., p$, and all the vertex subsets are such that $S_i=V(G_i)$, the $H$-generalized join operation constrained by these vertex subsets coincides with the $H$-generalized join operation. Some applications on the spread of graphs are presented. Namely, new lower and upper bounds are deduced and a infinity family of non regular graphs of order $n$ with spread equals $n$ is introduced.
Efetividade da aplica??o do sulfato ferroso em doses semanais no Programa Saúde da Família em Caruaru, Pernambuco, Brasil
Ferreira, Maria Lúcia Matias;Ferreira, Luiz Oscar Cardoso;Silva, Adailton Abreu da;Batista Filho, Malaquias;
Cadernos de Saúde Pública , 2003, DOI: 10.1590/S0102-311X2003000200004
Abstract: this study evaluates the effectiveness of an experimental project for combating anemia in children ages 6-23 months using weekly doses of iron sulfate within the family health program. in 1999, the brazilian ministry of health began an experimental program to combat anemia in 300,000 children from 512 municipalities in the northeast of the country. children received a weekly dose of 50mg of elementary iron for approximately 24 weeks. two hundred and ninety-three children ages 6-23 months from the urban and rural areas of the municipality of caruaru in pernambuco state were evaluated. before the trial, mean hemoglobin was 10.1 (± 0.98) g/dl, and 77.5% of the children were anemic. following treatment, mean hemoglobin rose to 11.1 (± 0.87) g/dl, while the prevalence of anemia fell to 40.3%. this strategy represents a promising tool to reduce prevalence and to control severe forms of anemia in children.
Uso diário e semanal de sulfato ferroso no tratamento de anemia em mulheres no período reprodutivo
Lopes, Maria do Carmo dos Santos;Ferreira, Luiz Oscar Cardoso;Batista Filho, Malaquias;
Cadernos de Saúde Pública , 1999, DOI: 10.1590/S0102-311X1999000400014
Abstract: a blind randomized trial was conducted in a low-income community in the city of recife, pernambuco, brazil, with 193 anemic (hb<12mg/dl) and "menstruating" women (age range: 15-45 years) to compare daily and weekly doses of ferrous sulfate (60 mg elemental iron) and treatment compliance. blood samples were taken from 484 women to determine hemoglobin levels before and after the trial and mean corpuscular volume (mcv) at end of treatment. after 12 weeks' follow-up, 150 women completed the trial, 79 on the alternative weekly regimen and 71 on the conventional daily regimen. mean corpuscular hemoglobin concentrations (mchc) prior to treatment were 10.52 g/dl (dp = 1.13) and 10.72 g/dl (dp = 0.92), respectively, for the alternative and conventional regimens. after the intervention they were 11.83 g/dl (dp = 0.97) for the weekly regimen and 11.62 g/dl (dp = 1.39) for the daily one. the alternative regimen was better accepted than the conventional one. there was no significant difference (p = 0.22) between differences in the mean values of the two regimens, although the cure rate was higher after the alternative treatment. the study concluded that the weekly regimen was no less effective than daily treatment.
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