Electromyographic preactivation pattern of the gluteus medius during weight-bearing functional tasks in women with and without anterior knee pain

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Acurácia da radiografia de tórax associada a eletrocardiograma no diagnóstico de hipertrofia em hipertensos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Prevalence and predictors of ventricular remodeling after anterior myocardial infarction in the era of modern medical therapy

Background: The consequences of aggressive therapy following a myocardial infarction (MI) on ventricular remodeling are not well established. Thus, the objective of this study was to analyze the prevalence, clinical characteristics, and predictors of left ventricular remodeling in the era of modern medical therapy.Material/Methods: Clinical characteristics and echocardiographic data were analyzed in 66 consecutive patients with anterior infarction at admission and at 6-month follow-up. Ventricular remodeling was defined as an increase of 10% in ventricular end-systolic or end-diastolic diameter.Results: In our study, 58% of patients presented with ventricular remodeling. Patients with remodeling possessed higher total plasma creatine kinase (CPK), MB-fraction (CPK-MB), heart rate, heart failure, shortness of breath, and reperfusion therapy than patients without remodeling. In contrast, patients with remodeling had a smaller ejection fraction, E-Wave deceleration time (EDT), and early (E' Wave) and late (A' Wave) diastolic mitral annulus velocity (average of septal and lateral walls), but a higher E/E' than patients without remodeling. Patients with remodeling used more diuretics, digoxin, oral anticoagulants and aldosterone antagonists than patients without remodeling. In the multivariate analyses, only E' Wave was an independent predictor of ventricular remodeling. Each 1 unit increase in the E' Wave was associated with a 59% increased odds of ventricular remodeling.Conclusions: In patients with anterior MI, despite contemporary treatment, ventricular remodeling is still a common event. In addition, diastolic function can have an important role as a predictor of remodeling in this scenario.

Predictors of Right Ventricle Dysfunction After Anterior Myocardial Infarction

Background: Regardless significant therapeutic advances, mortality and morbidity after myocardial infarction (MI) are still high. For a long time, the importance of right ventricle (RV) function has been neglected. Recently, RV dysfunction has also been associated with poor outcomes in the setting of heart failure. The shape, location, and contraction conditions make the RV chamber assessment technically challenging.Methods: Our study identified clinical characteristics and left ventricle (LV) echocardiographic data performed 3-5 days after MI that could be associated with RV dysfunction (RV fractional area change [FAC] < 35%) 6 months after MI.Results: The RV dysfunction group consisted of 11 patients (RV FAC 29.4% +/- 5.2) and the no RV dysfunction group of 71 patients (RV FAC 43.7% +/- 5.1); (P < 0.001). Both groups presented the same baseline clinical characteristics. Left atrium (LA), interventricular septum (IVS), and left ventricular posterior wall (LVPW) were larger in RV dysfunction than in no RV dysfunction. Conversely, E wave deceleration time (EDT) was lower in RV dysfunction when compared with no RV dysfunction. Left atrium(adj) (adjusted by gender, age, infarct size, and body mass index) (odds ratio [OR], 1.22; confidence interval [CI], 1.016-1.47; P = 0.032), interventricular septum(adj) (OR, 1.49; CI, 1.01-2.23; P = 0.044), and E wave deceleration time(adj) (OR, 0.98; CI, 0.97-0.98; P = 0.029) assessed soon after MI predicted RV failure after 6-months.Conclusions: LV diastolic dysfunction, resulting from anterior MI and assessed 3-5 days after the event, may play an important role in predicting RV dysfunction 6 months later.

Avaliação da contaminação da câmara anterior na cirurgia de facoemulsificação com implante de lente intra-ocular

Objetivo: Avaliar a existência de contaminação da câmara anterior durante a facectomia por facoemulsificação com implante de lente intra-ocular. Método: Foi realizado estudo prospectivo, avaliando-se 30 pacientes submetidos a facectomia por facoemulsificação com implante de lente intra-ocular, colhendo-se duas amostras de humor aquoso, uma obtida no início e outra no final da cirurgia. As amostras foram semeadas em meio de cultura para germes aeróbios, anaeróbios e fungos. Resultado: Todas as amostras avaliadas resultaram negativas. Conclusão: A contaminação da câmara anterior na cirurgia de facoemulsificação com implante de lente intra-ocular, usando os cuidados necessários, é infreqüente.

Corrective eyeglasses and medial canthal basal cell carcinoma: a case-control study

Background Corrective eyeglasses are frequently worn by adults, particularly at older ages. Their lenses and frames provide ultraviolet protection. Medial canthal basal cell carcinomas are infrequent (38%), and their relation with the use of corrective glasses was not yet investigated. Objectives To assess the prevalence of corrective eyeglasses use in individuals with medial canthal basal cell carcinoma. Methods Case-control study using two controls matched by age, gender, and ethnicity for each case. Cases were patients with medial canthal basal cell carcinoma, and controls were patients with basal cell carcinoma elsewhere on the face. The prevalence of major risk variables was estimated and adjusted by conditional multiple logistic regression. Results Fifty cases and 100 controls were assessed. The mean patient age was 69.7 years, and 54% of the subjects were females. No difference regarding the eyeglasses use or use duration was found between groups. However, when visual defects were separately evaluated, eyeglasses for myopia correction were independently associated with lower risk of medial canthal basal cell carcinoma development (OR = 0.26; P = 0.03), what can be related to long term local photoprotection. Conclusion The use of eyeglasses for myopia correction is associated with lower prevalence of medial cantal basal cell carcinoma. Risk-reducing mechanisms should be elucidated.

Prova de Trabalho de Parto Após uma Cesárea Anterior

Objetivo: estudar a validade da prova de trabalho de parto (PTP) em gestantes com uma cesárea anterior. Métodos: estudo retrospectivo, tipo coorte, incluindo 438 gestantes com uma cesárea anterior ao parto em estudo e seus 450 recém-nascidos (RN), divididas em dois grupos - com e sem PTP. O tamanho amostral mínimo foi de 121 gestantes/grupo. Considerou-se variável independente a PTP e as dependentes relacionaram-se à ocorrência de parto vaginal e à freqüência de complicações maternas e perinatais. Foram efetuadas análises uni e multivariada, respectivamente. A comparação entre as freqüências (%) foi analisada pelo teste do qui-quadrado (chi²) com significância de 5% e regressão logística com cálculo do odds ratio (OR) e do intervalo de confiança a 95% (IC95%). Resultados: a PTP associou-se a 59,2% de partos vaginais. Foi menos indicada nas gestantes com mais de 40 anos (2,7% vs 6,5%) e nas portadoras de doenças associadas e complicações da gravidez: síndromes hipertensivas (7,0%) e hemorragias de 3º trimestre (0,3%). A PTP não se relacionou às complicações maternas e perinatais. As gestantes que tiveram o parto por cesárea, independente da PTP, apresentaram maior risco de complicações puerperais (OR = 3,53; IC95% = 1,57-7,93). A taxa de mortalidade perinatal foi dependente do peso do RN e das malformações fetais e não se relacionou à PTP. Ao contrário, as complicações respiratórias foram mais freqüentes nos RN de mães não testadas quanto à PTP (OR = 1,92; IC95% = 1,20-3,07). Conclusões: os resultados comprovaram que a PTP em gestantes com uma cesárea anterior é estratégia segura - favoreceu o parto vaginal em 59,2% dos casos e não interferiu com a morbimortalidade materna e perinatal. Portanto, é recurso que deve ser estimulado.

Electromyographic analysis of the superior belly of the omohyoid muscle and anterior belly of the digastric muscle in tongue and head movements

The participation of the superior belly of the omohyoid muscle and anterior belly of the digastric muscle in tongue and head movements was studied eletromyographically in 20 normal young volunteers. A pair of monopolar electrodes was used in each muscle for simultaneous recording of their actions. The muscles act in the following tongue movements: protrusion, right and left lateral movements, placement of the tip of the tongue on soft and hard palates and on the floor of the mouth. The strongest levels of activity of the superior belly of the omohyoid muscle were observed in the placement of the tip of the tongue on the soft palate, coincidentally with a greater dislocation of hyoid bone. Both of the muscles studied did not participate in the head's kinesiology. (C) 1999 Elsevier B.V. Ltd. All rights reserved.

Estudo da correlação da densitometria óssea e do perímetro diafisário medial do terceiro metacarpiano em equinos

In this study, 14 post mortem equine metacarpal bones were evaluated to correlate the medial III metacarpus perimeter to dorsal bone density of the same region using Computed Tomography and Quantitative Ultrasound (QUS). According to Pearson's test, there were not correlations between these variables. Considering there are few bone densitometry studies in horses and there are many variables that can interfere with bone mineralization, new studies on equine bone density applying standard variables are recommended.

Origin of sensory and autonomic innervation of the rat temporomandibular joint: A retrograde axonal tracing study with the fluorescent dye fast blue

Previous studies that have used retrograde axonal tracers (horseradish peroxidase alone or conjugated with wheat germ agglutinin) have shown that the temporomandibular joint (TMJ) is supplied with nerve fibers originating mainly from the trigeminal ganglion, in addition to other sensory and sympathetic ganglia. The existence of nerve fibers in the TMJ originating from the trigeminal mesencephalic nucleus is unclear, and the possible innervation by parasympathetic nerve fibers has not been determined. In the present work, the retrograde axonal tracer, fast blue, was used to elucidate these questions and re-evaluated the literature data. The tracer was deposited in the supradiscal articular space of the rat TMJ, and an extensive morphometric analysis was performed of the labeled perikaryal profiles located in sensory and autonomic ganglia. This methodology permitted us to observe labeled small perikaryal profiles in the trigeminal ganglion, clustered mainly in the posterior-lateral region of the dorsal, medial and ventral thirds of horizontal sections, with some located in the anterior-lateral region of the ventral third. Sensory perikarya were also labeled in the dorsal root ganglia from C2 to C5. No labeled perikaryal profiles were found in the trigeminal mesencephalic nucleus. on the other hand, autonomic labeled perikaryal profiles were distributed in the sympathetic superior cervical and stellate ganglia, and parasympathetic otic ganglion. Our results confirmed those of previous studies and also demonstrated that: (i) there is a distribution pattern of labeled perikaryal profiles in the trigeminal ganglion; (ii) some perikaryal profiles located in the otic ganglion were labeled; and (iii) the trigeminal mesencephalic nucleus did not show any retrogradely labeled perikaryal profiles.

Actions of angiotensin II and dopamine in the medial preoptic area on prolactin secretion

Dopamine (DA) is known as a primary regulator of prolactin secretion (PRL) and angiotensin II (Ang II) has been recognized as one brain inhibitory factor of this secretion. In this work, estrogen-primed or unprimed ovariectornized rats were submitted to the microinjection of saline or Ang II after previous microinjection of saline or of da antagonist (haloperidol, sulpiride or SCH) both in the medial preoptic area (MPOA). Our study of these interactions has shown that 1) estrogen-induced PRL secretion is mediated by Ang II and da actions in the MPOA, i.e. very high plasma PRL would be prevented by inhibitory action of Ang II, while very low levels would be prevented in part by stimulatory action of da through D-2 receptors, 2) the inhibitory action of Ang II depends on estrogen and is mediated in part by inhibitory action of da through D, receptors and in other part by inhibition of stimulatory action of da through D2 receptors.

Cyto-, myelo- and chemoarchitecture of the prefrontal cortex of the Cebus monkey

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Anterior Tooth Rehabilitation With Frozen Homogenous Bone Graft and Immediately Loaded Titanium Implant Using Computer-Guided Surgery

Computed tomographic scanning is a precise, noinvasive surveying technique that enables the professionals to improve the precision of implant placement by building a prototype that allows the confection of surgical guides. The authors present a clinical case of anterior tooth rehabilitation with frozen homogenous bone graft and immediately loaded titanium implant using computer-guided surgery. A multislice computed tomography was realized, and a prototype was built. All the procedures were previously realized in the prototype before started in the patient. This technique allows a better surgical planning, makes the procedures more accurate, and reduces surgery time.

Effect of implant connection and restoration design (screwed vs. cemented) in reliability and failure modes of anterior crowns

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Avaliação do efeito da expansão rápida da maxila no padrão respiratório, por meio da rinomanometria anterior ativa: descrição da técnica e relato de caso

A finalidade deste artigo é avaliar o efeito da expansão rápida da maxila (ERM) no padrão respiratório. Por intermédio de um caso clínico, será relatado como indivíduos com atresia da maxila e problemas respiratórios podem se beneficiar com a expansão rápida da maxila. Outro aspecto que deve-se salientar é como profissionais da área da saúde, principalmente ortodontistas e otorrinolaringologistas, têm à sua disposição exames complementares para o diagnóstico do paciente com Respiração Bucal