439 research outputs found
CPR and ECC
This practical workshop will demonstrate the following Emergency and Critaickl Care techiques:
Cardioplumonary Resuscitation.
Thoracocentesis.
Intermittent Positive Pressure Ventilation.
Delegates will then be provided with the opportunity to practice the techniques themeselves on professional mannequins
Oromaxillofacial Cancer in Children: Part I Hard Tissue Malignant Tumors
Indexación: Web of Science; Scielo.RESUMEN: Las enfermedades malignas de cabeza y cuello en la población pediátrica son poco frecuentes. Considerando todos los tumores de cabeza y cuello, tanto benignos como malignos, éstos están representados por una frecuencia entre un 2% a 5% de todos los tumores pediátricos. A nivel de los maxilares, los tumores malignos en niños está representado por un rango que varía entre un 7% a 51%. En Chile, se estiman menos de 500 casos nuevos por año y en el rango entre los 5 y 15 años constituyen la segunda causa de muerte, precedida por los accidentes, traumatismos y violencias. Es importante considerar, al estudiar este grupo de enfermedades, que existen diferencias con los tumores de adultos, tanto en su incidencia, biología, comportamiento, histología y manejo. Es por esta razón que nos parece necesario realizar una revisión de la literatura científica para obtener un perfil del cáncer bucomaxilofacial infantil, que aporte en el entendimiento y aplicación de programas adecuados en el contexto de la salud bucomaxilofacial. Adicionalmente, buscamos actualizar el conocimiento de estas patologías, caracterizándolas en relación a su epidemiología, etiopatogenia y tratamiento, de manera que contribuya a los cirujanos dentistas para realizar diagnósticos y la pronta derivación a un centro especializado de patología oral. Para un estudio preciso, esta revisión constará de tres partes: la primera es sobre "tumores malignos de tejido óseo", mencionando, entre ellos, al osteosarcoma, sarcoma de Ewing, linfomas tanto Hodgkin como No Hodgkin, fibrosarcoma e histiocitosis de células de Langerhans.SUMMARY: Malignant head and neck disease in the pediatric population are rare. Considering all head and neck tumors, both benign and malignant, they represent between 2% to 5% of all pediatric tumors. At the level of the jaws, malignant tumors in children present in a range that varies from 7% to 51%. In Chile, fewer than 500 new cases are reported each year and in the 5 to 15 year-range are estimated to constitute the second cause of death, preceded by accidents, injuries and violence. When studying this group of diseases it is important to consider the differences with adult tumors, both in incidence, biology, behavior, histology and management. Therefore we believe it necessary to conduct a review of scientific literature to obtain a profile of child oral maxillofacial cancer, contributing to the understanding and implementation of appropriate programs in the context of maxillofacial health. In addition, we seek to update knowledge of these pathologies, characterizing their epidemiology, pathogenesis and treatment, so as to contribute to dental surgeons for diagnosis and early referrals to specialized centers for oral pathology. For a detailed study, this review will consist of three parts: the first is on "malignant bone tumors", included among these are: osteosarcoma, Ewing's sarcoma, Hodgkin's lymphoma, non-Hodgkin's lymphoma, Langerhans cell histiocytosis and fibrosarcoma.http://ref.scielo.org/4j5qv
Incidence and prevalence of salivary gland tumours in Valparaiso, Chile
Background
: To determine the incidence and prevalence of salivary gland tumours in the province of Valparaíso,
Chile.
Material and Methods
: Retrospective review of salivary gland tumours diagnosed between the years 2000 and
2011 from four local pathology services. Information on demographics and histopathology were retrieved from
the medical records.
Results
: The study sample consisted of 279 salivary gland tumours. Prevalence and incidence rates per 100.000
persons were 15.4 and 2.51, respectively. Most of the neoplasms corresponded to benign tumours (70.3%). The
most affected gland was the parotid gland. Pleomorphic adenoma was the most common benign tumour (53.8%)
and mucoepidermoid carcinoma was the most common malignant tumour (7.2%).
Conclusions
: Salivary gland tumours are uncommon neoplasms that usually arise in the parotid gland. Pleomor-
: Salivary gland tumours are uncommon neoplasms that usually arise in the parotid gland. Pleomorphic adenoma and mucoepidermoid carcinoma were the most common benign and malignant tumours reported
in this series
Proliferative Verrucous Leukoplakia: AClinical Case
Indexación: Web of Science; Scielo.RESUMEN: La Leucoplasia Verrucosa Proliferativa (LVP) es una placa blanca, verrucosa, exofítica, de crecimiento lento, que no se desprende al raspado y que tiende a comprometer diversos sitios de la mucosa oral. Es resistente al tratamiento independiente de la terapia adoptada y presenta una alta tasa de recidiva posterior al tratamiento quirúrgico. Desde 1985, cuando fue descrita por primera vez por Hansen, hasta le fecha, se ha mantenido como una entidad patológica compleja. Reportamos un caso de una paciente de sexo femenino de 72 años de edad que consulta por una lesión blanca, verrucosa, asintomática, que no se desprende al raspado, en el borde y vientre lingual y piso de boca. Se realizaron 2 biopsias incisionales del borde lateral de la lengua. Al examen microscópico se observó en ambas biopsias un grueso revestimiento epitelial acantósico, con marcada hiperparaqueratosis, una membrana basal nítida y cambios displásicos mínimos. Al mes de realizadas las biopsias la lesión presentó recidiva, manteniendo las mismas características clínicas encontradas inicialmente. Considerando la evolución, comportamiento biológico y las características histopatológicas, la lesión se diagnosticó como una LVP. Hasta la fecha, no hay protocolo de tratamiento establecido para estas lesiones. En este caso en particular, tomando en cuenta la extensión de la lesión, los sitios comprometidos, las escasas atipias presentes al examen histopatológico, la edad y escaso nivel socioeconómico de la paciente, se decidió no realizar la remoción quirúrgica de la lesión y mantenerla en control clínico cada 3 meses. Después de varios controles realizados durante un periodo de 3 años, se observó que la lesión mantuvo sus características clínicas iniciales. Esto confirma que haber optado por un tratamiento conservador, en este caso en particular de LVP, fue la decisión correcta. Sin embargo, es importante considerar que, según lo reportado en la literatura, la tasa de transformación maligna es alta e impredecible, por lo que los controles clínicos periódicos son de vital importancia para diagnosticar precozmente su evolución a carcinoma espino celular o carcinoma verrucoso.
PALABRAS CLAVE: Leucoplasia Verrucosa Proliferativa, leucoplasia oral, patología oral.
--------------------------------------------------------------------------------
ABSTRACT: The proliferative verrucous leukoplakia (PVL) is a white plate, wart-like, exophytic , slow growth , which does not follow the scaling that tends to compromise various oral mucosal sites . It is resistent to independent therapy and has a high rate of recurrence after surgical treatment. Since 1985, when it was first described by Hansen, and to date it has remained a complex pathological disorder. We report a case of a 72-year-old female patient who complains of a white, verrucous and asymptomatic lesion. The lesion does not detach by scraping the edge, lingual belly or mouth floor. Two Incisional biopsies were performed on lateral border of the tongue. Upon microscopic examination of both biopsies, thick epithelial lining, with marked hyperparakeratosis, a basement membrane, and minimal dysplasia alterations were observed. One month following biopsies of the lesion were performed, lesion relapsed and maintained the same clinical features found initially. Considering the evolution, biological behavior and histopathological features, the lesion is diagnosed as an PVL. To date, there is no established treatment protocol for these injuries. In this particular case, taking into account the extent of the injury, compromised sites, the few atypia present histopathological examination, age and low socioeconomic level of the patient, it was decided not to perform surgical removal of the lesion and maintain clinical monitoring every 3 months. Following several examinations carried out over a three-year period, it was observed that the injury kept initial clinical features. This confirms that having opted for conservative treatment, in this particular case of PVL, was the right decision. However, it is important to consider that, as reported in the literature, there is a high and unpredictable rate of malignant transformation. Therefore periodic clinical controls are vital for early diagnosis of cell carcinoma or verrucous carcinoma.
KEY WORDS: proliferative verrucous leukoplakia, oral leukoplakia, oral pathology.http://ref.scielo.org/zvg3s
Solitary intraosseous neurofibroma of the mandible. Apropos of a case
Neurofibroma is a benign neoplasm derived from peripheral nerves. Most of these are associated with Neurofibromatosis but may also occur as solitary lesions. When found on the head and neck they are generally located in the soft tissue. Intraosseous location is very rare. The following report describes a case of an intraosseous neurofibroma located in the left mandibular ramus of a 14-year-old child. The patient did not had clinical evidence of the lesion and it was found on a routine radiographic examination. Surgical excision of the lesion was scheduled and the sample was submitted to histopathological study. Representative sample cuts were studied using conventional techniques of hematoxylin-eosin and immunohistochemistry using primary antibodies anti S-100 protein, vimentin, and neuroespecific enolase. A review of clinical, radiographic, histologic and immunohistochemical features of other cases of intraosseuos neurofibromas located in the jaws together with the possible differential diagnosis of the lesion are discussed. Our case corresponds to a intraosseous neurofibroma of controveltial diagnosis because even though it presents typical neurofibroma histomorphological features it has immunophenotype different from usual. © Medicina Oral S. L
Patterns and correlates of use of evidence-based interventions to control diabetes by local health departments across the USA
Probiotics: Prevention of Severe Pneumonia and Endotracheal Colonization Trial—PROSPECT: protocol for a feasibility randomized pilot trial
CPR and ECC
This practical workshop will demonstrate the following Emergency and Critaickl Care techiques:
Cardioplumonary Resuscitation.
Thoracocentesis.
Intermittent Positive Pressure Ventilation.
Delegates will then be provided with the opportunity to practice the techniques themeselves on professional mannequins
Human Papilloma Virus and oral cancer: Narrative review of the literature
The Human Papilloma Virus (HPV) infection is now more common sexually transmitted diseases, with an incidence of 5.5 million worldwide, with 85% of the carrier of this virus adult population. Their oncogenic potential and increased oral lesions associated with oral HPV infection have led us to make a narrative of the literature on the role of HPV in oral cancer, especially types 16 and 18. Here we refer to the possible routes of infection, oncogenic mechanisms, both benign and potentially malignant oral lesions associated with the infection, different methods used for detection, prediction and prevention of infection. We stress the importance of the role of the dentist to identify individuals considered high risk and ease of performing detection in the oral cavity, through a quick and easy method as exfoliative cytology. Keywords: oral cavity, squamous cell carcinoma, HPV 16, HPV 18Virus Papiloma Humano y cáncer oral: Revisión narrativa de la literaturaEl Virus Papiloma Humano (VPH) en la actualidad constituye la infección por transmisión sexual más frecuente, presentando una incidencia de 5,5 millones en el mundo, siendo un 85% de la población adulta portadora de este virus. Su potencial oncogénico y el aumento de lesiones orales asociadas a infección oral por VPH nos han llevado a realizar una narración de la literatura referente al rol del VPH en el cáncer oral, especialmente de los subtipos 16 y 18. Nos referiremos a sus posibles vías de contagio, mecanismos oncogénicos, lesiones orales tanto benignas como potencialmente malignas asociadas a su infección, diferentes métodos utilizados para su detección, pronóstico y prevención de contagio. Destacamos la importancia del rol del odontólogo para identificar individuos considerados de alto riesgo y la facilidad de realizar su detección en la cavidad oral, a través de un método rápido y sencillo como es la citología exfoliativa. Palabras clave: cavidad bucal, carcinoma espinocelular, VPH 16, VPH 18
Individual Moral Development and Ethical Climate: The Influence of Person-Organization Fit on Job Attitudes
This research examines how the fit between employees’ moral development and the ethical work climate of their organization affects employee attitudes. Person–organization fit was assessed by matching individuals’ level of cognitive moral development with the ethical climate of their organization. The influence of P–O fit on employee attitudes was assessed using a sample of 304 individuals from 73 organizations. In general, the findings support our predictions that fit between personal and organizational ethics is related to higher levels of commitment and job satisfaction and lower levels of turnover intent. Ethical P–O fit was related to higher levels of affective commitment across all three ethical climate types. Job satisfaction was only associated with ethical P–O fit for one of the three P–O fit variables and turnover intentions were significantly associated with two of the ethical P–O fit variables. The most consistent effect was found for the Conventional –Caring fit variable, which was significantly related to all three attitudes assessed. The weakest effect was found for the Preconventional – Instrumental fit variable, which was only predictive of affective commitment. The pattern of findings and implications for practice and future research are discussed
- …
