526 research outputs found

    Ozonioterapia em pacientes submetidos à exodontia, após irradiação na região de cabeça e pescoço: uma série de casos clínicos

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    Trabalho de Conclusão (Residência). Universidade Federal de Santa Catarina. Comissão de Residência Multiprofissional e Uniprofissional em Saúde. Residência Integrada Multiprofissional em Saúde.Introdução: A osteorradionecrose (ORN) é uma das complicações mais graves dos maxilares após a radioterapia (RT), podendo ocorrer de maneira provocada após extração dentária. O tratamento da ORN é amplamente discutido e terapias coadjuvantes, como a ozonioterapia, estão sendo estudadas. O presente estudo tem como objetivo levantar informações sobre o perfil epidemiológico e dados do protocolo de atendimento odontológico dos pacientes atendidos no Ambulatório de Odontologia Hospitalar: suporte odontológico pré/trans e pós tratamento oncológico, em pacientes com Câncer de Boca (ACB), do Hospital Universitário Polydoro Ernani de Santiago, da Universidade Federal de Santa Catarina (HU/UFSC/EBSERH, com histórico de RT na região de cabeça e pescoço; e observar a progressão e o desfecho do reparo tecidual do alvéolo após exodontia associada ao uso da ozonioterapia em uma série de casos de clínicos. Metodologia: Estudo observacional descritivo, que corresponde ao relato de uma série de casos clínicos de pacientes atendidos no ACB entre os meses de Março de 2019 a Dezembro de 2020, que realizaram extrações dentárias após tratamento radioterápico, e que foram submetidos a ozonioterapia, para prevenção de ORN. Resultados: Os pacientes realizaram RT com dose maior que 50 Gy. As cirurgias ocorreram de maneira atraumática em 87% dos procedimentos. Todos os pacientes realizaram aplicação de Ozonioterapia, em média 3,34 sessões pré-operatórias e 3,65 sessões pós-operatórias. Durante o transoperatório, houve variação dos protocolos de aplicação. Em 39,1% dos procedimentos foi observado fechamento do alvéolo por tecido mole na primeira avaliação clínica; 34,7% dos procedimentos apresentaram retardo no processo de cicatrização na segunda avaliação clínica; 4,34% dos procedimentos não apresentou reparo alveolar na terceira avaliação clínica. Conclusão: A Ozonioterapia apresentou bons resultados como tratamento adjuvante na prevenção de lesões por ORN, e necessita de maiores estudos. O cirurgião-dentista deve atuar na prevenção, redução da gravidade e tratamento das lesões de ORN, garantindo uma melhor qualidade de vida aos pacientes

    A memória na construção identitária em Essa terra e Pelo fundo da agulha, de Antonio Torres

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    The work approaches the memory as rescue of the person´s identity, at a fragmented society, in that the personal relations are more unstable. Through comparative analysis of Essa terra (1976) and Pelo fundo da agulha (2006), by Antonio Torres, it is showed the person that migrates of the native land to get better and after this person divided between two worlds, without dreams and without life´s expectations.O trabalho enfoca a memória como resgate da identidade do sujeito, numa sociedade fragmentada, em que as relações pessoais estão cada vez mais instáveis. A partir da análise comparativa das obras Essa terra (1976) e Pelo fundo da agulha (2006), de Antonio Torres, mostra-se o migrante em busca de melhores condições de vida e mais tarde dividido entre dois mundos, sem sonhos e sem expectativas

    The Attitudes of Iowa Public School Board Members, Administrators and Students Toward Student Rights

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    105 leaves. Advisor: Dr. Robert L. WhittSince the decade of the sixties, the constitutional rights of students have become a major concern of school board members, administrators and students. Because of the rulings of the court, existing school policies may not agree with the decisions the courts have made. In addition, many of the people serving as school board members and administrators were educated in schools that promoted an authoritarian-type atmosphere, with little regard for student rights. Therefore, this study was made to determine the present attitudes toward student rights held by school board members, superintendents, secondary school principals and secondary school students in the public schools of the state of Iowa. The problem. The problems investigated in this study were: 1) Are the attitudes of school board members, superintendents, secondary school principals and secondary school students similar in regard to student rights? 2) Is there a relationship between school district size as determined by K-12 enrollment and attitudes of school board members, superintendents, secondary school principals and secondary school students in regard to student rights? Procedure. A survey instrument containing thirty-two statements pertaining to student rights was sent to school board members, superintendents, secondary school principals and secondary school students in randomly selected Iowa public school districts. These statements were individually ranked according to a scale which measured a positive or negative attitude toward student rights. A two-factor analysis of variance was selected as the most appropriate statistical model for the data. Findings. The findings included: 1} Students have a decidedly more positive attitude toward student rights than school board members, superintendents and secondary school principals. 2) Secondary school principals have a more positive attitude toward student rights than school board members or superintendents. 3) Board members and superintendents are similar in their attitudes toward student rights. 4) In Iowa, respondents in the large school districts (1,500 or more students) have a more positive attitude toward student rights than those in the small (less than 750 students) or medium-sized (750-1,499 students) public school districts. 5) In Iowa, respondents in small and medium-sized school districts were similar in their attitudes toward student rights. Conclusions. The following conclusions were made as a result of the study: 1) There is a significant difference in attitudes toward student rights among students, administrators, and board members. However, the differences in attitudes toward student rights between school board members and superintendents is non-significant. 2) Although respondents in small and medium-sized school districts were similar in their attitudes toward student rights, there is a significant difference between respondents in those districts and the large public school districts. Recommendations. The following recommendations were suggested. 1) For school board members and administrators, there should be held periodically a required in-service day concerning school law and discussion of court decisions relevant to public schools. 2) Pertinent courses of study encompassing the constitutional rights of students should be required for all student teachers and potential administrators. 3) A survey instrument by which each school could test for weak or dissonant areas concerning student rights should be developed. 4) School staff-parent-student representative councils for the review of school policies and the establishment of long-range goals should be formed. 5) The development of a uniform student rights code legally acceptable to all concerned parties is recommended. 6) There should be a longitudinal study to see how, if at all, group attitudes change over time and whether such changes result in larger or smaller differences between groups. 7) An identification and study of other groups, such as parents, should be compared with groups like those included in this study. 8) There should be studies designed to determine why the differences exist between groups as were found in this study and to explore the effectiveness of procedures structured to reduce such differences

    Hospital Infant Formula Discharge PackagesDo They Affect the Duration of Breast-feeding?

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    Objective: To determine whether the duration of breastfeeding is affected by the contents of the hospital discharge package. Design: A randomized clinical trial with 2 experimental interventions (a discharge package containing a manual breast pump only and a discharge package containing a commercially prepared infant formula and a manual breast pump) and a control group who received a commercially prepared infant formula discharge package only. Sociodemographic characteristics and information concerning prior births (including feeding methods) were obtained from each mother within 48 hours of her infant\u27s birth. Sources of influence on the mother\u27s feeding decision, maternal attitudes concerning breastfeeding, and maternal feeding preferences were also assessed. Participants: The sample consisted of 763 women who had given birth who were admitted to the maternal-fetal unit of a midwestern community hospital. Main Outcome Measures: Information concerning current method of infant feeding was obtained from telephone interviews conducted at 2-week intervals until the infant was 16 weeks old. The data were analyzed using descriptive statistics, multivariate analysis of variance, logistic regression analysis, and survival analysis. Results: The content of the hospital discharge package did not affect whether the mother engaged in exclusive or partial breast-feeding during the 16-week follow-up interval. However, there was some evidence that providing formula samples at discharge from the hospital increased the duration of exclusive breast-feeding compared with providing a manual breast pump. Conclusion: This study does not support the assumption that inclusion of infant formula in hospital discharge packages decreases the duration of breastfeedin

    Specific heat and non-linear susceptibility in spin glasses with random fields

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    We study magnetic properties of spin glass SG systems under a random field (RF), beased on the suggestion that RFs can be induced by a weak transverse field in the compound LiHox_xY1x_{1-x}F4_4. We consider a cluster spin model that allows long-range disordered interactions among clusters and short-range interactions inside the clusters, besides a local RF for each spin following a Gaussian distribution with standard deviation Δ\Delta. We adopt the one-step replica symmetry breaking (RSB) approach to get an exactly solvable single-cluster problem. We discuss the behavior of order parameters, specific heat CmC_{m}, nonlinear susceptibility χ3\chi_3 and phase diagrams for different disorder configurations. In the absence of RF, the χ3\chi_3 exhibits a divergence at TfT_f, while the CmC_{m} shows a broad maximum at a temperature TT^{**} around 30%\% above TfT_f, as expected for conventional SG systems. The presence of RF changes this scenario. The CmC_{m} still shows the maximum at TT^{**} that is weakly dependent on Δ\Delta. However, the TfT_f is displaced to lower temperatures, enhancing considerable the ration T/TfT^{**}/T_f. Furthermore, the divergence in χ3\chi_3 is replaced by a rounded maximum at a temperature TT^{*}, which becomes increasingly higher than TfT_f as Δ\Delta enhances. As a consequence, the paramagnetic phase is unfolded in three regions: (i) a conventional paramagnetism (T>TT>T^{**}; (ii) a region with formation of short-range order with frozen spins (T<T<TT^{*}<T<T^{**}); (iii) a region with slow growth of free-energy barriers slowing down the spin dynamics before the SG transition (Tf<T<TT_f<T<T^{*}) suggesting an intermediate Griffiths phase before the SG state. Our results reproduce qualitatively some findings of LiHox_xY1x_{1-x}F4_4 as the rounded maximum of χ3\chi_3 behavior triggered by RF.Comment: 9 pages, 6 figure

    Análise de segregação complexa de 1.792 famílias com fenda lábio-palatina na América do Sul: 1967-1997

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    Although several studies have demonstrated familial aggregation of nonsyndromic cleft lip with or without cleft palate (CL/P), its model of inheritance remains uncertain. We report the results of complex segregation analysis performed in South American families with a newborn affected with CL/P. Families of 1,792 consecutive newborns affected with CL/P and registered during the period 1967 to 1997 were studied. A model that did not include a major locus was the best-fitting model for CL/P families. This result is in agreement with previous studies which showed a significant association of several putative susceptibility loci and CL/P, indicating that the genes involved in CL/P are likely to have only a very modest impact on disease risk.Os estudos sobre fendas lábio-palatinas (FL/P) demonstram existir uma maior incidência do defeito nas famílias de afetados, mas seu modo de herança permanece indefinido. Esse trabalho apresenta os resultados de uma análise de segregação complexa realizada em 1.792 famílias sul-americanas que possuíam um recém-nascido com FL/P. Essas crianças foram registradas entre 1967 e 1997 e os nascimentos foram consecutivos. Um modelo sem um locus principal foi o que melhor se adequou às famílias de FL/P estudadas. Esse resultado está de acordo com estudos anteriores que mostraram uma significativa associação entre vários loci de suscetibilidade e FL/P, indicando que os genes relacionados com FL/P, isoladamente, contribuem pouco para o risco desse defeito

    Complex segregation analysis of 1,792 cleft lip and palate families in South America: 1967-1997

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    Os estudos sobre fendas lábio-palatinas (FL/P) demonstram existir uma maior incidência do defeito nas famílias de afetados, mas seu modo de herança permanece indefinido. Esse trabalho apresenta os resultados de uma análise de segregação complexa realizada em 1.792 famílias sul-americanas que possuíam um recém-nascido com FL/P. Essas crianças foram registradas entre 1967 e 1997 e os nascimentos foram consecutivos. Um modelo sem um locus principal foi o que melhor se adequou às famílias de FL/P estudadas. Esse resultado está de acordo com estudos anteriores que mostraram uma significativa associação entre vários loci de suscetibilidade e FL/P, indicando que os genes relacionados com FL/P, isoladamente, contribuem pouco para o risco desse defeito.Although several studies have demonstrated familial aggregation of nonsyndromic cleft lip with or without cleft palate (CL/P), its model of inheritance remains uncertain. We report the results of complex segregation analysis performed in South American families with a newborn affected with CL/P. Families of 1,792 consecutive newborns affected with CL/P and registered during the period 1967 to 1997 were studied. A model that did not include a major locus was the best-fitting model for CL/P families. This result is in agreement with previous studies which showed a significant association of several putative susceptibility loci and CL/P, indicating that the genes involved in CL/P are likely to have only a very modest impact on disease risk

    Hyperlactatemia during cardiopulmonary bypass: determinants and impact on postoperative outcome

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    INTRODUCTION: Hyperlactatemia during cardiopulmonary bypass is relatively frequent and is associated with an increased postoperative morbidity. The aim of this study was to determine which perfusion-related factors may be responsible for hyperlactatemia, with specific respect to hemodilution and oxygen delivery, and to verify the clinical impact of hyperlactatemia during cardiopulmonary bypass in terms of postoperative morbidity and mortality rate. METHODS: Five hundred consecutive patients undergoing cardiac surgery with cardiopulmonary bypass were admitted to this prospective observational study. During cardiopulmonary bypass, serial arterial blood gas analyses with blood lactate and glucose determinations were obtained. Hyperlactatemia was defined as a peak arterial blood lactate concentration exceeding 3 mmol/l. Pre- and intraoperative factors were tested for independent association with the peak arterial lactate concentration and hyperlactatemia. The postoperative outcome of patients with or without hyperlactatemia was compared. RESULTS: Factors independently associated with hyperlactatemia were the preoperative serum creatinine value, the presence of active endocarditis, the cardiopulmonary bypass duration, the lowest oxygen delivery during cardiopulmonary bypass, and the peak blood glucose level. Once corrected for other explanatory variables, hyperlactatemia during cardiopulmonary bypass remained significantly associated with an increased morbidity, related mainly to a postoperative low cardiac output syndrome, but not to mortality. CONCLUSION: Hyperlactatemia during cardiopulmonary bypass appears to be related mainly to a condition of insufficient oxygen delivery (type A hyperlactatemia). During cardiopulmonary bypass, a careful coupling of pump flow and arterial oxygen content therefore seems mandatory to guarantee a sufficient oxygen supply to the peripheral tissues
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