Termo de consentimento livre e esclarecido aos usuários de clínicas odontológicas brasileiras: aspectos éticos e legais

O consentimento do paciente antes do início de qualquer procedimento é uma condição a ser respeitada pelos profissionais da odontologia, sem nenhuma exceção. É necessário que o paciente esteja ciente de seu status de saúde, de suas necessidades específicas, do propósito de cada tratamento, conheça os planejamentos alternativos (incluindo o não tratamento), saiba do seu prognóstico, riscos, consequências, limitações e se conscientize das suas responsabilidades e as do seu cirurgião-dentista, proporcionando o sucesso do tratamento. O termo de consentimento livre e esclarecido (TCLE) visa fortalecer e esclarecer a posição do paciente, estabelecendo os direitos e deveres de ambas as partes paciente e profissional. O conhecimento integral do tratamento diminuirá a ansiedade do paciente e as complicações de tratamento, promoverá maior qualidade dos serviços odontológicos e maior satisfação do dentista e do paciente. Entretanto, no Brasil, poucos artigos são encontrados e existem alguns problemas éticos envolvendo as clínicas odontológicas, no que diz respeito a este documento de esclarecimento para o paciente. Diante disso, este trabalho tem por objetivo realizar uma revisão crítica sobre o tema abordado, demonstrando a importância do TCLE na clínica odontológica brasileira e na vida profissional dos cirurgiões-dentistas.

A comparative study of speed expressed by the number of throws between heavier and lighter categories in judo

Objective. - The objective of this work was to verify if there was a difference in throwing speed performance between heavier and lighter weight categories in judo. Methods and subjects. - Sixteen (16) judoists 18 +/- 3 years old, eight considered in the lightweight category (< 66 kg) and eight considered in the heavyweight (> 73 kg) category, participated in the study after signing a term of informed consent. A force-velocity test was used to determine the anaerobic power, strength, and pedal speed for each subject. In addition, three trials of Nage-komi exercise, each comprised of a set of Osoto-gari (15s), Uchi-mata (15s) and Seoi-nage (15s) throws were performed by each subject to ascertain throwing speed. Throws within the sets were intersected by one period of three minutes passive rest, while the trials were separated by one period of 10 minutes passive rest. Heart rate and the greatest number of throws within each set were measured for three trials. One-way analysis of variance (Anova) was used to compare the number of throws between the two weight categories and a ""Student"" test when the difference was significant. A correlation was used to examine the link between the different parameters. Results. - The force-velocity test did not show a significant difference in pedal speed between the two categories. However, there was a significant difference between the two categories when throwing speed was measured by the number of throws (p < 0.05) executed during the Seoi-nage (p < 0.01) and Uchi-mata (p <0.05) techniques. There was however, no significant difference between the two categories in Osoto-gari technique. Conclusion. - The throwing speed of judoists represented by the number of throws is significantly different between the two categories. The lighter category has more speed than the heavier category using the arm technique (Seoi-nage), while the heavier category has more speed using the leg technique with half turn of the attacker`s body (Uchi-mata). As a result, throwing speed is related to the type of technique used and not weight category. (C) 2007 Elsevier Masson SAS. All rights reserved.

Coronary Artery Stenoses: Accuracy of 64-Detector Row CT Angiography in Segments with Mild, Moderate, or Severe Calcification-A Subanalysis of the CORE-64 Trial

Purpose: To evaluate the influence of cross-sectional arc calcification on the diagnostic accuracy of computed tomography (CT) angiography compared with conventional coronary angiography for the detection of obstructive coronary artery disease (CAD). Materials and Methods: Institutional Review Board approval and written informed consent were obtained from all centers and participants for this HIPAA-compliant study. Overall, 4511 segments from 371 symptomatic patients (279 men, 92 women; median age, 61 years [interquartile range, 53-67 years]) with clinical suspicion of CAD from the CORE-64 multi-center study were included in the analysis. Two independent blinded observers evaluated the percentage of diameter stenosis and the circumferential extent of calcium (arc calcium). The accuracy of quantitative multidetector CT angiography to depict substantial (>50%) stenoses was assessed by using quantitative coronary angiography (QCA). Cross-sectional arc calcium was rated on a segment level as follows: noncalcified or mild (<90 degrees), moderate (90 degrees-180 degrees), or severe (>180 degrees) calcification. Univariable and multivariable logistic regression, receiver operation characteristic curve, and clustering methods were used for statistical analyses. Results: A total of 1099 segments had mild calcification, 503 had moderate calcification, 338 had severe calcification, and 2571 segments were noncalcified. Calcified segments were highly associated (P < .001) with disagreement between CTA and QCA in multivariable analysis after controlling for sex, age, heart rate, and image quality. The prevalence of CAD was 5.4% in noncalcified segments, 15.0% in mildly calcified segments, 27.0% in moderately calcified segments, and 43.0% in severely calcified segments. A significant difference was found in area under the receiver operating characteristic curves (noncalcified: 0.86, mildly calcified: 0.85, moderately calcified: 0.82, severely calcified: 0.81; P < .05). Conclusion: In a symptomatic patient population, segment-based coronary artery calcification significantly decreased agreement between multidetector CT angiography and QCA to detect a coronary stenosis of at least 50%.

Frequency of 22q11.2 microdeletion in sporadic non-syndromic tetralogy of Fallot cases

Background: Tetralogy of Fallot (TOF) is a congenital conotruncal heart defect commonly found in DiGeorge (DGS) and velocardiofacial (VCFS) syndromes. The deletion of chromosome 22q11 has also been demonstrated in sporadic or familial cases of TOF. The aim of the present study was to investigate the frequency of del22q11 in patients with non-syndromic TOF seen at a tertiary Pediatric Cardiology care center. Method: One hundred and twenty three non-syndromic TOF patients were selected and evaluated by history, physical examination and review of medical records. Venous blood was drawn for genomic DNA extraction after informed consent 22q11 microdeletion diagnosis was conducted through a standardized SNP genotyping assay and consecutive homozygosity mapping. Phenotype-genotype correlations regarding cardiac anatomy were conducted. Results: We evaluated 123 non-syndromic TOF patients for a 22q11 deletion. 105 (85.4%) patients presented pulmonary stenosis and 18 (14.6%) had pulmonary atresia. Eight patients (6.5%) were found to have a deletion. Of the deleted patients, three (37.5%) presented pulmonary atresia. We have verified a tendency towards a higher prevalence of pulmonary atresia when comparing TOF patients with and without 22q11 microdeletion. Conclusions: 22q11.2 deletion in non-syndromic TOF patients is present in approximately 6% of patients. We suggest a tendency towards a higher prevalence of pulmonary atresia in non-syndromic TOF patients with 22q11 microdeletion. Molecular genetic screening of non-syndromic TOF patient may be important for the correct care of these patients and a more specific genetic diagnostic and counseling. (C) 2007 Elsevier Ireland Ltd. All rights reserved.

Ten-year Retrospective Study of Treatment of Malignant Colonic Obstructions with Self-expandable Stents

Purpose: To describe the use of self-expandable metallic stents to manage malignant colorectal obstructions and to compare the radiation dose between fluoroscopic guidance of stent placement and combined endoscopic and fluoroscopic guidance. Materials and Methods: From January 1998 to December 2007, 467 oncology patients undergoing colorectal stent placement in a single center were included in the study. Informed consent was obtained in all cases. All procedures were performed with fluoroscopic or combined fluoroscopic and endoscopic guidance. Inclusion criteria were total or partial colorectal obstruction of neoplastic origin. Exclusion criteria were life expectancy shorter than I month, suspicion of perforation, and/or severe colonic neoplastic bleeding. Procedure time and radiation dose were recorded, and technical and clinical success were evaluated. Follow-up was performed by clinical examination and simple abdominal radiographs at 1 day and at I, 3, 6, and 12 months. Results: Of 467 procedures, technical success was achieved in 432 (92.5%). Thirty-five treatments (7.5%) were technical failures, and the patients were advised to undergo surgery. Significant differences in radiation dose and clinical success were found between the fluoroscopy and combined-technique groups (P < .001). Total decompression was achieved in 372 cases, 29 patients showed remarkable improvement, 11 showed slight improvement, and 20 showed clinical failure. Complications were recorded in 89 patients (19%), the most significant were perforation (2.3%) and stent migration (6.9%). Mean interventional time and radiation dose were 67 minutes and 3,378 dGy.cm(2), respectively. Conclusions: Treatment of colonic obstruction with stents requires a long time in the interventional room and considerable radiation dose. Nevertheless, the clinical benefits and improvement in quality of life justify the radiation risk.

Ultrasound features of carpal tunnel syndrome: a prospective case-control study

Purpose The purpose of the study was to examine the most adequate cut-off point for median nerve cross-sectional area and additional ultrasound features supporting the diagnosis of carpal tunnel syndrome (CTS). Material and methods Forty wrists from 31 CTS patients and 63 wrists from 37 asymptomatic volunteers were evaluated by ultrasound. All patients were women. The mean age was 49.1 years (range: 29-78) in the symptomatic and 45.1 years (range 24-82) in the asymptomatic group. Median nerve cross-sectional area was obtained using direct (DT) and indirect (IT) techniques. Median nerve echogenicity, mobility, flexor retinaculum measurement and the anteroposterior (AP) carpal tunnel distance were assessed. This study was IRB-approved and all patients gave informed consent prior to examination. Results In CTS the median nerve cross-sectional area was increased compared with the control group. Median nerve cross-sectional area of 10 mm(2) (DT) and 9 mm(2) (IT) had high sensitivity (85% and 88.5%, respectively), specificity (92.1% and 82.5%) and accuracy (89.3% and 82.5%) in the diagnosis of CTS. CTS patients had an increased carpal tunnel AP diameter, flexor retinaculum thickening, reduced median nerve mobility and decreased median nerve echogenicity. Conclusion Ultrasound assists in the diagnosis of CTS using the median nerve diameter cut-off point of 10 mm(2) (DT) and 9 mm(2) (IT) and several additional findings.

Subchondral Cystlike Lesions Develop Longitudinally in Areas of Bone Marrow Edema-like Lesions in Patients with or at Risk for Knee Osteoarthritis: Detection with MR Imaging-The MOST Study

Purpose: To assess the association of prevalent bone marrow edema-like lesions (BMLs) and full-thickness cartilage loss with incident subchondral cyst-like lesions (SCs) in the knee to evaluate the bone contusion versus synovial fluid intrusion theories of SC formation. Materials and Methods: The Multicenter Osteoarthritis study is a longitudinal study of individuals who have or are at risk for knee osteoarthritis. The HIPAA-compliant protocol was approved by the institutional review boards of all participating centers, and written informed consent was obtained from all participants. Magnetic resonance images were acquired at baseline and 30-month follow-up and read semiquantitatively by using the Whole-Organ Magnetic Resonance Imaging Score system. The tibiofemoral and patellofemoral joints were subdivided into 14 subregions. BMLs and SCs were scored from 0 to 3. Cartilage morphology was scored from 0 to 6. The association of prevalent BMLs and full-thickness cartilage loss with incident SCs in the same subregion was assessed by using logistic regression with mutual adjustment for both predictors. Results: A total of 1283 knees were included. After adjustment for full-thickness cartilage loss, prevalent BMLs showed a strong and significant association with incident SCs in the same subregion, with an odds ratio of 12.9 (95% confidence interval [CI]: 8.9, 18.6). After adjustment for BMLs, prevalent full-thickness cartilage loss showed a significant but much less important association with incident SCs in the same subregion (odds ratio, 1.4; 95% CI: 1.0, 2.0). There was no apparent relationship between severity of full-thickness cartilage loss at baseline and incident SCs. Conclusion: Prevalent BMLs strongly predict incident SCs in the same subregion, even after adjustment for full-thickness cartilage loss, which supports the bone contusion theory of SC formation. (C) RSNA, 2010

Update in Gynecology and Obstetrics: reviews and databases

There is a considerable body of new information on Gynecology and Obstetrics. To aid in keeping gynecologists updated, renowned periodicals publish review articles. Review articles enable the reader to obtain the best evidence for clinical or research issues from several individual articles. This enables the professional to make clinical decisions in the light of current knowledge. The different types of reviews and database that may be used for the elaboration of reviews are discussed in the present article. It is suggested that future reviews on Gynecology and Obstetrics include articles published in other idioms apart from English and that a larger number of database is researched. Thus, reviews will be not only more inclusive but more representative of the international literature.

T-Bar clasp-retained removable partial denture as an alternative to implant-based prosthetic treatment

This article reports the case of a 55-year-old female patient who presented with unsatisfactory temporary crowns in the right mandibular premolars and molars, and a premolar-to-molar fixed partial denture in the left side. The clinical and radiographic examinations revealed a fracture of the left first premolar that was a retainer of the fixed partial denture and required extraction. Initially, the acrylic resin crowns were replaced by new ones, and a provisional RPD was made using acrylic resin and orthodontic wire clasps to resolve the problem arising from the loss of the fixed partial denture. Considering the patient's high esthetic demands, the treatment options for the definitive prosthetic treatment were discussed with her and rehabilitation with implant-supported dentures was proposed because the clinical conditions of the residual alveolar ridge were suitable for implant installation, and the patient's general health was excellent. However, the patient did not agree because she knew of a failed case of implant-retained denture in a diabetic individual and was concerned. The patient was fully informed that implant installation was the best indication for her case, but the arguments were not sufficient to change her decision. The treatment possibilities were presented and the patient opted for a clasp-retained removable partial denture (RPD) associated with the placement of crowns in the pillar teeth. The temporary RPD was replaced by the definitive RPD constructed subsequently. Although RPD was not the first choice, satisfactory esthetic and functional outcomes were achieved, overcaming the patient's expectations. This case report illustrates that the dentist must be prepared to deal with situations where, for reasons that cannot be managed, the patient does not accept the treatment considered as the most indicated for his/her case. Alternatives must be proposed and the functional and esthetic requirements must be fulfilled in the best possible manner.

Diagnostic agreement between panoramic radiographs and color doppler images of carotid atheroma

The aim of this study was to investigate the agreement between diagnoses of calcified atheroma seen on panoramic radiographs and color Doppler images. Our interest stems from the fact that panoramic images can show the presence of atheroma regardless of the level of obstruction detected by color Doppler images. Panoramic and color Doppler images of 16 patients obtained from the archives of the Health Department of the city of Valença, RJ, Brazil, were analyzed in this study. Both sides of each patient were observed on the images, with a total of 32 analyzed cervical regions. The level of agreement between diagnoses was analyzed using the Kappa statistics. There was a high level of agreement, with a Kappa value of 0.78. In conclusion, panoramic radiographs can help detecting calcifications in the cervical region of patients susceptible to vascular diseases predisposing to myocardial infarction and cerebrovascular accidents. If properly trained and informed, dentists can refer their patients to a physician for a cardiovascular evaluation in order to receive proper and timely medical treatment.

Avaliação de solventes de extração por ultrassom usando-se cromatografia líquida de alta eficiência para a determinação de hidrocarbonetos policíclicos aromáticos em solos contaminados

A method using ultrasonication extraction for the determination of 17 polycyclic aromatic hydrocarbons (PAHs), selected by the USEPA and NIOSH as "consent decree" priority pollutants, in soil by High Performance Liquid Chromatography (HPLC) was studied. Separation and detection were completed in 20 min with a C18 columm, acetonitrile-water gradient elution and ultraviolet absorption and fluorescence detections. The detection limits, for a 10 µL of solution injection, were less than 9,917 ng/g in UV detection and less than 1,866 ng/g in fluorescence detection. Several organic solvents were tested for extraction of the 17 PAHs from soils. Acetone was the best solvent among the three solvents tested, and the order of the extraction efficiencies was: acetone>methanol>acetonitrile. Ultrasonication using acetone as solvent extraction was used to evaluate the biodegradation of those compounds in contaminated soil during a vermicomposting process.

Qualidade da água para consumo humano e concentração de fluoreto

O artigo visa analisar a concentração de fluoreto na água para consumo humano, considerando o balanço entre benefícios e riscos à saúde, e produzir subsídios para atualização da legislação brasileira. Estudos de revisão sistemática, documentos oficiais e dados meteorológicos foram examinados. As temperaturas nas capitais brasileiras indicam que o fluoreto deveria variar de 0,6 a 0,9 mg/L para prevenir cárie dentária. Concentração de fluoreto natural de 1,5 mg/L é tolerável para consumo no Brasil se não houver tecnologia de custo-benefício aceitável para ajuste/remoção do seu excesso. A ingestão diária de água com fluoreto em concentração > 0,9 mg/L representa risco à dentição em menores de oito anos de idade e os consumidores deveriam ser expressamente informados desse risco. Considerando a expansão do programa nacional de fluoretação da água para regiões de clima tipicamente tropical, deve-se revisar a Portaria 635/75, relacionada ao fluoreto adicionado às águas de abastecimento público.

Consumo alimentar e doença macrovascular em nipo-brasileiros: um estudo transversal

OBJETIVO: Descrever o hábito alimentar de nipo-brasileiros com e sem doença macrovascular (DMV). MÉTODOS: Definiu-se DMV, para 1.165 nipo-brasileiros, a partir de escores atribuídos ao histórico de saúde, eletrocardiograma e valores do índice tornozelo-braquial. Determinou-se o consumo alimentar habitual por meio de Questionário de Frequência do Consumo de Alimentos. RESULTADOS: A porcentagem de casos confirmados com DMV foi de 3,2%, sendo semelhante entre os sexos. Observou-se, de forma estatisticamente significante, maior frequência de indivíduos com DMV (confirmados ou suspeitos) entre aqueles de primeira geração, com idade > 60 anos, tabagistas, com hipertensão arterial, hipertrigliceridemia e diabetes. Nipo-brasileiros com DMV (confirmados ou suspeitos) apresentaram menor perímetro do quadril e maior idade, pressão arterial sistólica, triglicérides, glicemia, consumo de alimentos fonte de ferro e menor fonte de fibras de grãos. Encontrou-se diferença estatisticamente significante apenas para o consumo de gordura saturada (análise bruta: segundo terço versus primeiro terço). CONCLUSÕES: programas de educação nutricional devem ser incentivados neste grupo com alta prevalência de doenças crônicas não transmissíveis.

Prevalência de fatores de risco para doenças crônicas: inquérito populacional mediante entrevistas telefônicas em Botucatu, São Paulo, 2004

OBJETIVO: Descrever resultados da aplicação de um sistema de monitoramento de fatores de risco para doenças crônicas não transmissíveis (DCNT) por meio de entrevistas telefônicas (SIMTEL) no município de Botucatu/SP. MÉTODOS: Entrevistou-se amostra probabilística (n = 1.410) da população de indivíduos com 18 ou mais anos de idade residente em domicílios do município de Botucatu/SP, conectados à rede de telefonia fixa. A amostragem foi realizada em três etapas: sorteio de linhas do cadastro da companhia telefônica; seleção de linhas residenciais ativas; sorteio para entrevista de um morador com 18 ou mais anos de idade por linha elegível. A taxa de sucesso (entrevistas realizadas: linhas elegíveis sorteadas) foi de 86,9%, sendo de 5,8% a proporção de recusas. Foi aplicado um questionário com 74 questões sobre consumo alimentar, atividade física, tabagismo, consumo de bebidas alcoólicas, peso e estatura recordados e auto-referência a diagnósticos médicos de hipertensão arterial e diabetes. Apresentam-se estimativas brutas da prevalência de fatores de risco/proteção para DCNT e estimativas ajustadas que levam em conta a distribuição segundo idade, sexo e escolaridade da população adulta total do município no Censo Demográfico de 2000. RESULTADOS: Foram observadas altas prevalências de excesso de peso (46.7%) e sedentarismo (57.9%). Houve desvantagem para os homens quanto ao consumo excessivo de bebidas alcoólicas e vantagem no que se refere à prática de atividade física em 1 ou mais dias da semana. Nas mulheres, observou-se associação inversa entre escolaridade e os seguintes fatores de risco: obesidade, excesso de peso, sedentarismo, consumo de carnes com gordura e hábito de fumar. Resultado semelhante foi observado para homens, exceto com relação a obesidade e excesso de peso. CONCLUSÕES: A segunda experiência de aplicação do SIMTEL confirmou o desempenho satisfatório e a utilidade do sistema em nosso meio.

Perfil de utilização de medicamentos em usuários da rede básica de saúde de Lorena, SP

Estudo transversal desenvolvido com a clientela da clínica médica das Unidades Básicas de Saúde de Lorena (SP) com o objetivo de descrever o perfil de utilização de medicamentos em adultos e idosos. Foram coletados dados sobre características sociodemográficas, razões de procura do serviço, prescrição medicamentosa, identificação do(s) medicamento(s) utilizado(s) no último mês, local de aquisição do(s) mesmo(s), automedicação e uso de medicamento(s) homeopático(s). Foram entrevistados 766 indivíduos, sendo 66% do sexo feminino. Mais de 46% dos entrevistados referiram existência de doença crônica e a maioria se considerava em bom estado de saúde. A prescrição de medicamentos alcançou cerca de 70% da população, com média de 1,5 medicamento por pessoa, a maioria anti-hipertensivos. Este número aumentou com o aumento da idade, foi maior nas situações de manutenção do estado de saúde e casos de doença, na existência de doença crônica, nos casos auto-referidos como estado de saúde ruim para os homens e regular para as mulheres. Para as mulheres, também foi maior para as não inscritas em alguma UBS e para aquelas em consulta de retorno. A automedicação e o uso de medicamentos homeopáticos foram baixos.