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1.
Acta Odontol Latinoam ; 32(2): 97-102, 2019 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-31664300

RESUMO

The aim of the present study was to validate and establish a cut off point and the predictive value of an adhesion test (AA-MSMG), as a microbiological method for evaluating cariogenic risk. The study is based on a variant (20% sucrose) of a selective medium descripted by Gold et al. (MSMG). This method differentiates mutans group streptococci (MGS) by exacerbating the production of insoluble extracellular polysaccharide which gives adhesion to surfaces such as glass, plastic and dental enamel. Caries assessment according to ICDAS was conducted in 154 patients (aged >21 years) who were attended at Preventive and Community Dentistry Department, School of Dentistry, University of Buenos Aires, Argentina, between August 2017 to August 2018. The study population was assigned to groups according to the presence/ absence of caries lesions: Group A: ICDAS lesion code = 0 (L=0) on all dental surfaces (n=23); and Group B: L>1 (n=131). After mouth-rinsing with distilled water, saliva samples were collected with fasting and hygiene protocol, and sent immediately to the Microbiological Diagnosis Laboratory, Microbiology Department, School of Dentistry, University of Buenos Aires. Samples were homogenized and serially diluted to the tenth. 100 pl of the dilutions were cultured in 25 cm2 sterile plastic flasks containing 9.9 ml of modified selective medium described by Gold (MSMG-selective and differential medium). Cultures were incubated in an anaerobic atmosphere at 36 ± 1°C for 48 hours. The supernatants were eluted and the samples washed with sterile distilled water. Colony forming unit counts were performed by calibrated researchers (Kappa >0.75) using a stereoscopic microscope at 50X. Mutans group streptococci (MGS) counts ranged from 1x104 to 1x105 CFU/ml in group A, and were higher than 1x106 CFU/ml in Group B. Statically analysis of results (ROC) showed that the AAMSMG has a satisfactory predictive value (91%) and established a cutoff point in 1.68x105 UFC / ml. This would indicate that individuals whose MGS saliva counts are higher than the cutoff value would be 5 times more likely to develop dental caries. Adherence assay could be a useful microbiological predictor of caries risk.


Assuntos
Cárie Dentária , Saliva/microbiologia , Streptococcus mutans/isolamento & purificação , Adulto , Argentina , Contagem de Colônia Microbiana , Cárie Dentária/microbiologia , Humanos , Antissépticos Bucais , Valor Preditivo dos Testes , Dente/microbiologia , Adulto Jovem
2.
Acta Odontol Latinoam ; 32(2): 111-110, 2019 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-31664302

RESUMO

Learning strategies are a set of organized, conscious, intentional tasks performed by a student to achieve a learning objective effectively in a given social context. The aim of the present study was to determine the type and frequency of use of different learning strategies among students taking the subject "Comprehensive Clinic II ", which corresponds to the 3rd year of the 6-year general syllabus of the undergraduate course at the School of Dentistry, Buenos Aires University, and to analyze the use of these learning strategies according to the number of years elapsed between each students admission to dental school and the time he/she took that subject. Dental students (n=189) filled in the Learning and Study Strategies Inventory (LASSI). Seventy-five percent were female. The tool includes 10 dimensions, organized in 77 items. Responses to each question were recorded using a Likert type scale (5 choices). Total scores were obtained by assigning values to the responses. The students were grouped according to time elapsed from year of admission to dental school to the year in which they took the subject (Institutional Persistence, TI). Statistical analysis included mean and confidence intervals for scores (total and for each domain) and comparisons among TI groups using one-way ANOVA and Tukeys post hoc test. Total score for the sample was 275.3 (71.5% of maximum possible score). There were differences in the use of learning strategies reported by dental students in the tool. Students with shorter institutional persistence times scored higher in the following dimensions: attitude and interest, motivation, selfdiscipline, willingness, self-testing and reviewing.


Assuntos
Educação em Odontologia , Avaliação Educacional , Estudantes de Odontologia/psicologia , Adulto , Odontologia , Feminino , Humanos , Masculino , Faculdades de Odontologia , Inquéritos e Questionários
3.
Acta odontol. latinoam ; 32(2): 97-102, Aug. 2019. ilus, graf, tab
Artigo em Inglês | LILACS-Express | ID: biblio-1038165

RESUMO

The aim of the present study was to validate and establish a cut off point and the predictive value of an adhesion test (AA-MSMG), as a microbiological method for evaluating cariogenic risk. The study is based on a variant (20% sucrose) of a selective medium descripted by Gold et al. (MSMG). This method differentiates mutans group streptococci (MGS) by exacerbating the production of insoluble extracellular polysaccharide which gives adhesion to surfaces such as glass, plastic and dental enamel. Caries assessment according to ICDAS was conducted in 154 patients (aged >21 years) who were attended at Preventive and Community Dentistry Department, School of Dentistry, University of Buenos Aires, Argentina, between August 2017 to August 2018. The study population was assigned to groups according to the presence/ absence of caries lesions: Group A: ICDAS lesion code = 0 (L=0) on all dental surfaces (n=23); and Group B: L>1 (n=131). After mouth-rinsing with distilled water, saliva samples were collected with fasting and hygiene protocol, and sent immediately to the Microbiological Diagnosis Laboratory, Microbiology Department, School of Dentistry, University of Buenos Aires. Samples were homogenized and serially diluted to the tenth. 100 pl of the dilutions were cultured in 25 cm² sterile plastic flasks containing 9.9 ml of modified selective medium described by Gold (MSMG-selective and differential medium). Cultures were incubated in an anaerobic atmosphere at 36 ± 1°C for 48 hours. The supernatants were eluted and the samples washed with sterile distilled water. Colony forming unit counts were performed by calibrated researchers (Kappa >0.75) using a stereoscopic microscope at 50X. Mutans group streptococci (MGS) counts ranged from 1x10(4) to 1x10(5) CFU/ml in group A, and were higher than 1x10(6) CFU/ml in Group B. Statically analysis of results (ROC) showed that the AAMSMG has a satisfactory predictive value (91%) and established a cutoff point in 1.68x10(5) UFC / ml. This would indicate that individuals whose MGS saliva counts are higher than the cutoff value would be 5 times more likely to develop dental caries. Adherence assay could be a useful microbiological predictor of caries risk.


El objetivo del presente estudio fue validar, establecer el punto de corte y valor predictivo de una técnica microbiológica para evaluar el nivel de estreptococos del grupo mutans en saliva. La técnica consiste en un test de adherencia que emplea un medio selectivo modificado (20% sacarosa) descripto por Gold et al. (TA-MSMG). Este método permite diferenciar a los estreptococos del grupo mutans (SGM) exacerbando la producción del polisacárido extracelular insoluble que le confiere adhesión a superficies como vidrio, plástico y esmalte dental. De acuerdo con los criterios de ICDAS se sembraron 154 salivas de pacientes mayores de edad, que asistieron al Servicio de Odontología Preventiva y Comunitaria de la Facultad de Odontología de la Universidad de Buenos Aires entre los meses de agosto de los años 2017 y 2018. La población estudiada fue asignada a dos grupos según la presencia / ausencia de lesiones de caries: Grupo A: código de lesión ICDAS = 0 (L = 0) en todas las superficies dentales (n = 23); y Grupo B: L> 1 (n = 131). Después de realizar un enjuague bucal con agua destilada, las muestras de saliva se recogieron según protocolo (ayuno de 4 horas y suspensión de higiene dental de 12 hs). Las muestras se remitieron de inmediato al Laboratorio de Diagnóstico Microbiológico, Departamento de Microbiología de la Facultad de Odontología, Universidad de Buenos Aires. Para su procesamiento, las muestras fueron homogeneizadas y diluidas al décimo. Se cultivaron 100 pl de las diluciones en botellas de plástico estériles de 25 cm² que contenían 9,9 ml de medio de Gold modificado (MSMG-20% sacarosa). Los cultivos se incubaron en atmósfera anaeróbica a 36 ± 1°C durante 48 horas. El sobrenadante se eluyó y las muestras se lavaron con agua destilada estéril. Los recuentos de unidades formadoras de colonias SGMfueron realizados por investigadores calibrados (Kappa >0.75) utilizando un microscopio estereoscópico a 50X. Los recuentos de SGM presentaron una variación entre 1x10(4)y 1x10(5) UFC/ml en el grupo A, mientras que en el Grupo B fueron superiores a 1x10(6) UFC/ml. El análisis estadístico de los resultados determinó una curva ROC que establece para el TA-MSMG un valor predictivo del 91% y un punto de corte en 1.68x10(5) UFC SGM / ml. Esto indicaría que los individuos cuyos recuentos en saliva de SGM sean superiores al valor de corte, tendrían 5 veces más posibilidades de desarrollar caries (5:1). Este método podría ser un instrumento útil al momento de evaluar (indicador microbiológico) el riesgo cariogénico del paciente.

4.
Acta odontol. latinoam ; 32(2): 111-110, Aug. 2019. graf, tab
Artigo em Inglês | LILACS-Express | ID: biblio-1038167

RESUMO

Learning strategies are a set of organized, conscious, intentional tasks performed by a student to achieve a learning objective effectively in a given social context. The aim of the present study was to determine the type and frequency of use of different learning strategies among students taking the subject "Comprehensive Clinic II ", which corresponds to the 3rd year of the 6-year general syllabus of the undergraduate course at the School of Dentistry, Buenos Aires University, and to analyze the use of these learning strategies according to the number of years elapsed between each student's admission to dental school and the time he/she took that subject. Dental students (n=189) filled in the Learning and Study Strategies Inventory (LASSI). Seventy-five percent were female. The tool includes 10 dimensions, organized in 77 items. Responses to each question were recorded using a Likert type scale (5 choices). Total scores were obtained by assigning values to the responses. The students were grouped according to time elapsed from year of admission to dental school to the year in which they took the subject (Institutional Persistence, TI). Statistical analysis included mean and confidence intervals for scores (total and for each domain) and comparisons among TI groups using one-way ANOVA and Tukey's post hoc test. Total score for the sample was 275.3 (71.5% of maximum possible score). There were differences in the use of learning strategies reported by dental students in the tool. Students with shorter institutional persistence times scored higher in the following dimensions: attitude and interest, motivation, selfdiscipline, willingness, self-testing and reviewing.


Las estrategias de aprendizaje son un conjunto organizado, consciente e intencional de lo que hace el estudiante para lograr con eficacia un objetivo de aprendizaje en un contexto social dado. El objetivo de este trabajo fue determinar el tipo y frecuencia de uso de estrategias de aprendizaje en estudiantes del curso de Clínica Integrada II, que corresponde al 3er año del programa general de 6 años de la Carrera de Odontología, y analizar su utilización en función del tiempo de permanencia en la Facultad. Los alumnos (n=189) respondieron el cuestionario "Inventario de Estrategias de Aprendizaje y Estudio" (LASSI). Este instrumento consta de 10 dimensiones organizadas en 77 reactivos. Las respuestas a cada reactivo fueron registradas mediante una escala de Likert (5 opciones). El puntaje total se obtuvo mediante asignación de valores a las respuestas elegidas. Los estudiantes fueron agrupados de acuerdo con el tiempo transcurrido entre el ingreso a la carrera y el la fecha en que cursaron la asignatura elegida. (Permanencia institucional, TI). Procesamiento estadístico: cálculo de media e intervalo de confianza para puntajes (total y por dominio) y comparación entre grupos (PI) mediante ANOVA de un factor y post hoc Tukey. El componente femenino fue 75%. El puntaje total para la muestra fue 275,3 (71,5% del máximo posible). Se comprobaron diferencias en el uso de estrategias de aprendizaje. Los alumnos con menor tiempo de permanencia institucional mostraron puntajes mas altos en las siguientes dimensiones: actitud e interés, motivación, autodisciplina, disponibilidad y autoevaluación / repaso.

5.
J Cardiovasc Surg (Torino) ; 59(1): 115-120, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28548476

RESUMO

BACKGROUND: Experimental evidence suggests that blood cardioplegia (BCP) may be superior to cold crystalloid cardioplegia (CCP) for myocardial protection. However, robust clinical data are lacking. We compared postoperative outcome of patients undergoing aortic valve replacement (AVR) using cold anterograde-retrograde intermittent BCP versus anterograde (CCP). METHODS: Adult consecutive isolated AVR performed between April 2006 and February 2011 at the Royal Infirmary Hospital of Edinburgh were retrospectively analyzed. The use of anterograde CCP was compared with that of intermittent anterograde-retrograde cold BCP. End points were intra-operative mortality, 30-day hospital re-admission, need for RBC or platelet transfusion, mechanical ventilation time and renal failure. RESULTS: Of total 774 cases analyzed, 592 cases of BCP and 182 cases of CCP were identified. Demographics did not differ between groups (mean age: 67±12 years in CCP and 69±12 years in BCP). Groups (BCP vs. CCP) were indistinguishable (P>0.05, not significant) based on: average aortic cross clamp time 77.01±14.47 vs. 75.78±18.78 minutes, cardiopulmonary bypass time 104.07±43.70 vs. 100.34±25.90 minutes, surgery time 190.53±61.80 vs. 204.04±51.09 minutes and postoperative total blood consumption 1.38±2.11 vs. 1.61±2.4 units. The percentage of patients who required platelets' transfusion was similar: 12.8% BCP and 18.7% CCP (Fisher's exact test, P=0.053). Prevalence of respiratory failure was lower in BCP than in CCP: 2.6% vs. 6.3% (P=0.028). Admission time (days) at ICU was 3.63± 21.90 in BCP and 3.07±8.04 in CCP (not significant). Intra-hospital mortality, 30-day hospital re-admission, renal failure, sepsis, wound healing and stroke did not differ between groups. CONCLUSIONS: BCP was strictly not superior to CCP in every aspect. In particular it was definitely not superior in terms of postoperative ventricular function. Our results question the absolute superiority of BCP over CCP in terms of hard outcomes. Likelihood of serious complications should be considered to improve risk profile of patients before choosing a cardioplegic solution.


Assuntos
Valva Aórtica/cirurgia , Soluções Cardioplégicas/uso terapêutico , Parada Cardíaca Induzida/métodos , Implante de Prótese de Valva Cardíaca/métodos , Soluções Isotônicas/uso terapêutico , Traumatismo por Reperfusão Miocárdica/prevenção & controle , Idoso , Transfusão de Componentes Sanguíneos/estatística & dados numéricos , Ponte Cardiopulmonar , Soluções Cristaloides , Feminino , Implante de Prótese de Valva Cardíaca/mortalidade , Mortalidade Hospitalar , Humanos , Masculino , Readmissão do Paciente/estatística & dados numéricos , Complicações Pós-Operatórias/mortalidade , Estudos Retrospectivos , Resultado do Tratamento
6.
Acta Odontol Latinoam ; 29(1): 82-89, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27701503

RESUMO

The aim of this study was to establish the association between features regarding brushing procedure performed by schoolchildren without previous formal training and the effectiveness of biofilm removal. Out of a population of 8900 6- and 7-year-old schoolchildren in Buenos Aires City, 600 children were selected from schools located in homogeneous risk areas. Informed consent was requested from parents or guardians and formal assent was obtained from children themselves. The final sample consisted of 316 subjects. The following tooth brushing variables were analyzed: toothbrush-gripping, orientation of active part of bristles with respect to the tooth, type of movement applied, brushing both jaws together or separately, including all 6 sextants and duration of brushing. The level of dental biofilm after brushing was determined by O'Leary's index, acceptable cut-off point = 20%. Four calibrated dentists performed observations and clinical examinations. Frequency distribution, central tendency and dispersion measures were calculated. Cluster analyses were performed; proportions of variables for each cluster were compared with Bonferroni's correction and OR was obtained. The most frequent categories were: palm gripping (71.51%); perpendicular orientation (85.8%); horizontal movement (95.6%); separate addressing of jaws (68%) and inclusion of all 6 sextants (50.6%). Mean duration of brushing was 48.78 ± 27.36 seconds. 42.7% of the children achieved an acceptable biofilm level. The cluster with the highest proportion of subjects with acceptable post-brushing biofilm levels (p<0.05) differed significantly from the rest for the variable "inclusion of all 6 sextants in brushing procedure". OR was 2.538 (CI 95% 1.603 - 4.017). Inclusion of all six sextants could be a determinant variable for the removal of biofilm by brushing in schoolchildren, and should be systematized as a component in oral hygiene education.


Assuntos
Biofilmes , Placa Dentária/microbiologia , Placa Dentária/prevenção & controle , Dente/microbiologia , Escovação Dentária/métodos , Criança , Humanos , Registros
7.
Rev. Fac. Odontol. (B.Aires) ; 31(70): 40-44, ene.-jun. 2016. tab
Artigo em Espanhol | LILACS | ID: biblio-835576

RESUMO

Objetivo: Estimar la concordancia para la detección de biofilm dental entre recursos humanos que participan de programas de educación para la salud con diferente nivel de formación profesional. Métodos: Se seleccionó en forma intencionada un grupo deestudiantes de los primeros años de la carrera de odontología que participan como ayudantes en el curso Educación para la Salud (n= 8) (Grupo A). Los examinadores de referencia fueron odontólogos/docentes universitarios que desarrollan acciones sistemáticas de educación para la salud en escuelas públicas de Ciudad Autónoma de Buenos Aires (C.A.B.A.) (n= 2) (Grupo B). Se examinaron 67 escolares (edades 7 a 9 años) previo consentimiento informado de los responsables legales y el asentimiento de los niños/as. Los diagnósticos se realizaron bajo condiciones estandarizadas en la sede escolar. Los pares de examinadores determinaron en cada escolar la presencia de biofilm dental, primero a simple vista y luego con solución reveladora (Índice de O`Leary, 1970). La concordancia se valoró utilizando el coeficiente de correlación intraclase para valores absolutos. La fuerza del grado de acuerdo se valoró según Landis y Koch, 1977. Resultados: El coeficiente de correlación intraclase fue: 1) para el índice de placa visible: medidas individuales = 0,71 IC95 por ciento [0,56-0,81]; promedios = 0,83 IC95 por ciento [0,71-0,90] b) para el índice de O´Leary: medidas individuales = 0,62 IC95 por ciento [0,44-0,75]; promedios = 0,77 IC95 por ciento [0,61-0,86]. Conclusión: los examinadores del Grupo A (recursos humanos pre-reprofesionales) respecto del Grupo B (recursos humanos profesionales) alcanzaron un grado considerable de concordancia para la detección de placa a simple vista y un grado moderado de concordancia para la detección de placa con solución reveladora.


Objective: The aim of this study was to measure inter-observer agreement in the assessment of dental biofilm between subjectsparticipating in health education programs with different levels of professional training. METHODS: In order to perform thisvalidation procedure, a group of undergraduate students in the initial years of the career of dentistry engaged as teaching assistants for aHealth Education Course (n=8) was intentionally recruited (GROUP A). Freshmen dental graduates / teaching assistants whodevelop systematic health educational activities in public schools (n=2). 67 children (ages 7 to 9) were considered reference examiners(GROUP B). Clinical examinations were performed among 67 schoolchildren (ages 7 to 9 years old). Informed consent of children´slegal guardians and assent of children themselves as for participation in the study were obtained. At first, examiners set into pairs,assessed dental biofilm presence/absence in each child visually (Visual Plaque Index). The same procedure was repeated after applyingdisclosing solution (O´Leary Index). The intraclass correlation index (ICI) was used to establish interobserver agreement whereas theLandis-Koch criteria was used to interpret the results. RESULTS: The intraclass correlation index was 1) Visual Plaque Index:individual measures = 0,71 IC95% [0,56-0,81]; average measures = 0,83 IC95% [0,71-0,90] b) O´Leary Index: individualmeasures = 0,62 IC95% [0,44-0,75]; average measures = 0,77 IC95% [0,61-0,86]. CONCLUSION: examiners fromGROUP A (undergraduate students) respect to those from GROUP B (graduates) reached a substantial agreement in the assessment ofdental biofilm visually and a moderate degree of agreement in the assessment of dental biofilm using disclosing solution.


Assuntos
Humanos , Masculino , Feminino , Biofilmes , Índice de Placa Dentária , Educação Pré-Odontológica , Estudantes de Odontologia , Argentina , Educação em Saúde Bucal , Planos e Programas de Saúde , Variações Dependentes do Observador , Serviços de Odontologia Escolar , Análise Estatística , Estudos de Validação
8.
Bol. Asoc. Argent. Odontol. Niños ; 44(3): 2-6, ene.-abr. 2016. tab, ilus
Artigo em Espanhol | LILACS | ID: lil-794305

RESUMO

El asma es una enfermedad inflamatoria crónica que provoca que las vías respiratorias se estrechen y dificulta la respiración. La medicación para el asma incluye broncodilatadores y fármacos anticolinérgicos. Objetivo: determinar la prevalencia de erosión dental en los niños que reciben salbutamol cmo medicación broncodilatadora y establecer diferencias con aquellos sin afecciones respiratorias. Métodos: la muestra incluyó 100 niños, 50 de ellos medicados usaqndo un inhalador de salbutamol a lo largo de los 9 meses anteriores al estudio (Md 5 años 6m) y 50 sin patología respiratoria. Los padres de los niños completaron un cuestionario del consumo de bebidas. Se llevaron a cabo exámenes dentales y se determinó la pérdida de tejido dental según índice de SyK y CDHS. Procesamiento estadístico: se utilizaron media, mediana, DS, distribución de frecuencias y chi cuadrado. Resultados: se observó erosión dental en el 52 por ciento de los niños medicados y en el 42 por ciento de los no medicados. Los niños con medicación y consumo de bebidas diarias presentaron erosión en un 64,7 por ciento y consumo fines de semana 50 por ciento. Los niños sin medicación y consumo de bebidas diarias presentaron erosión enb un 34,8 por ciento y consumo fines de semana 31,2 por ciento. No se observó asociación entre medicación y erosión dental. No ser observaron diferencias estadísticas entre grupos ni en la frecuencia de consumo de bebidas ácidas. Conclusión: en ambos grupos existe una alta prevalencia de erosión dental, no mostrando asociación entre la medicación y la erosión dental...


Assuntos
Humanos , Masculino , Feminino , Pré-Escolar , Criança , Asma/complicações , Asma/epidemiologia , Broncodilatadores/efeitos adversos , Erosão Dentária/epidemiologia , Erosão Dentária/etiologia , Esmalte Dentário/lesões , Albuterol/efeitos adversos , Bebidas Gaseificadas/efeitos adversos , Distribuição de Qui-Quadrado , Epidemiologia Descritiva , Análise Estatística , Bebidas Gaseificadas/estatística & dados numéricos
9.
Acta odontol. latinoam ; 29(1): 82-89, 2016. ilus, graf, tab
Artigo em Inglês | LILACS | ID: lil-790212

RESUMO

The aim of this study was to establish the association betweenfeatures regarding brushing procedure performed by school-children without previous formal training and the effectivenessof biofilm removal. Out of a population of 8900 6- and 7-year-old schoolchildrenin Buenos Aires City, 600 children were selected from schoolslocated in homogeneous risk areas. Informed consent wasrequested from parents or guardians and formal assent wasobtained from children themselves. The final sample consistedof 316 subjects. The following tooth brushing variables wereanalyzed: toothbrush-gripping, orientation of active part ofbristles with respect to the tooth, type of movement applied,brushing both jaws together or separately, including all 6sextants and duration of brushing. The level of dental biofilmafter brushing was determined by O’Leary’s index, acceptablecut-off point = 20%. Four calibrated dentists performedobservations and clinical examinations. Frequency distribution,central tendency and dispersion measures were calculated.Cluster analyses were performed; proportions of variables foreach cluster were compared with Bonferroni’s correction andOR was obtained. The most frequent categories were: palm gripping (71.51%);perpendicular orientation (85.8%); horizontal movement(95.6%); separate addressing of jaws (68%) and inclusion ofall 6 sextants (50.6%). Mean duration of brushing was 48.78 ±27.36 seconds. 42.7% of the children achieved an acceptablebiofilm level. The cluster with the highest proportion of subjectswith acceptable post-brushing biofilm levels (p<0.05) differedsignificantly from the rest for the variable “inclusion of all 6 sextants in brushing procedure”. OR was 2.538 (CI 95%1.603 – 4.017). Inclusion of all six sextants could be a determinant variable forthe removal of biofilm by brushing in schoolchildren, and shouldbe systematized as a component in oral hygiene education.


El objetivo del trabajo fue establecer la asociación entre las características del procedimiento de cepillado en escolares sin previo entrenamiento formal con la efectividad para el barrido del biofilm dental. Sobre una población de 8900 escolares de Ciudad Autónoma deBuenos Aires de 6 y 7 años de edad, se seleccionaron 600 niños concurrentes a escuelas situadas en áreas de riesgo homogéneo. Sobre esta muestra se solicito consentimiento informado a losresponsables legales y el asentimiento formal, conformando una muestra final de 316 individuos. Se analizaron las siguientes variables del procedimiento de cepillado: tipo de toma del cepillo dental, orientación de la parte activa respecto del diente, tipo de movimiento aplicado, abordaje simultaneo o no de ambos maxilares, inclusión de los 6 sextantes y duración de cepillado.El nivel de biofilm dental posterior al cepillado se determinó con el índice de O’Leary-punto de corte aceptable=20 por ciento. Cuatro odontólogos calibrados realizaron las observaciones y exámenes clínicos. Se calculó: distribución de frecuencias, medidas detendencia central y su dispersión. Se realizó un análisis de clúster y comparación de proporciones de las variables de cada conglomerado con corrección de Bonferroni y OR. Las categorías más frecuentes fueron: toma palmar (71,51 por ciento); orientación perpendicular (85,8 por ciento); movimiento horizontal (95,6 por ciento); cepillado de ambos maxilares por separado (68 por ciento) einclusión de los 6 sextantes (50,6 por ciento). La media de duración delcepillado fue de 48.78 ± 27.36 segundos. El42,7 por ciento de losescolares alcanzaron un nivel de biofilm aceptable. El clúster que mostró la mayor proporción de individuos con niveles de biofilm postcepillado aceptables (p<0,05) mostró diferenciasestadísticamente significativas con los demás respecto de la variable “inclusión de 6 sextantes en el cepillado”. El OR fueigual a 2,538 (IC 95 por ciento 1,603 – 4,017)


Assuntos
Humanos , Masculino , Feminino , Criança , Escovação Dentária/métodos , Placa Dentária/terapia , Argentina , Doenças da Gengiva/prevenção & controle , Educação em Saúde Bucal , Higiene Bucal/educação , Serviços de Odontologia Escolar , Análise Estatística
10.
Bol. Asoc. Argent. Odontol. Niños ; 44(2): 2-7, sept.-dic. 2015. tab, graf
Artigo em Espanhol | LILACS | ID: lil-786703

RESUMO

Objetivos: describir la supervivencia y estado post-1 año de restauraciones con ionómero vítreo (IV) realizadas por recurso humano preprofesional y analizar la asociación entre el estado de las mismas y variables intervinientes. Métodos: se evaluaron 129 restauraciones (en 54 escolares; edad: 6 y 7 años) con IV (Ketac Molar Easymix), realizadas por estudiantes del último año de la carrera de odontología en un programa escolar con un a técnica sistematizada basada en los criterios de la restauración atraumática. Para la evaluación, cuatro examinadores basaron sus observaciones en el criterio de Franken que establece 7 categorías: 0= presente en buenas condiciones, 1= ligero defecto marginal, 2= ligero desgaste, 3= defecto marginal >0,5 mm, 4= desgaste >0,5 mm, 5= restauración partida o parcialmente perdida y 6= no presente. Para su análisis descriptivo, fueron reagrupadas en 3 categorías en términos de necesidad de reintervención: N1 (0 y 2) no necesita reintervención, N2 (1 y 3) necesita mínima intervención y N3 (4, 5 y 6) requiere reemplazo. Se consideran variables intervinientes: dentición, extensión de la cavidad y presencia de lesiones activas de caries en la cavidad bucal post-1 año clínica. Se calcularon las distribuciones de frecuencia y se estudió asociación con la prueba de Chi cuadrado. Resultados: la tasa de supervivencia post -1 año fue de 94,6 por ciento. El estado de las restauraciones mostró asociación significativa con la presencia de actividad de caries en boca en el momento de la evaluación. Conclusiones: la tasa de supervivencia de las restauraciones con IV post-1 año realizadas por recursos humano preprofesional supervisado, fue alta. La presencia de actividad de caries en boca podría ser una variable del estado de las restauraciones


Assuntos
Humanos , Masculino , Feminino , Criança , Cimentos de Ionômeros de Vidro/uso terapêutico , Restauração Dentária Permanente/estatística & dados numéricos , Restauração Dentária Permanente/métodos , Estudantes de Odontologia , Argentina , Desgaste de Restauração Dentária , Educação Pré-Odontológica/métodos , Serviços de Odontologia Escolar , Análise Estatística , Serviços de Integração Docente-Assistencial
11.
Acta Odontol Latinoam ; 28(2): 185-91, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26355891

RESUMO

Modeer T. et al.(2011) claim that there is association between decreased salivary flow rate and caries in obese adolescents. The aim of this study was to determine the association among nutritional status, salivary flow rate and caries risk in preschoolers. The study comprised 60 children aged 3 to 6 years attending kindergartens in areas immediately adjacent to Buenos Aires City, Argentina. Body weight and height of the children were determined. Body mass index was calculated and the population was classified anthropometrically according to the WHO 2007 (WHO Anthro. Program). Caries risk was determined. Saliva was collected in sterile graduated widemouth containers, without stimulation and without food restrictions. Salivary flow rate (SFR) was determined. Statistical analysis was performed using Pearson's test. It was found that 56.7% (IC95%: 37.7-74.0) of anthropometrically adequate children (Ad) and 37.0% (IC95%: 20.1-57.5) of overweight and obese children (OW/Ob) had caries. The odds ratio for caries (OR=3.78; IC95%: 1.2-11.8, p=0.02) was almost 4 times higher in adequate children than in the others. SFR was 0.534 0.318 ml/min in Ad and 0.439 } 0.234 ml/min in OW/Ob. Pearson's test showed no correlation between SFR and nutritional status (r= 0.004592, p= 0.5977). Although the presence of caries was lower in overweight and obese children, no correlation was found between nutritional status and salivary flow rate.


Assuntos
Saliva , Argentina , Peso Corporal , Criança , Pré-Escolar , Cárie Dentária/epidemiologia , Humanos , Estado Nutricional , Obesidade/epidemiologia , Sobrepeso/epidemiologia
12.
Acta odontol. latinoam ; 28(2): 185-191, 2015. tab, graf
Artigo em Inglês | LILACS | ID: lil-768624

RESUMO

Modéer T. et al. (2011) afirman que en las poblaciones de adolescentes obesos existe asociación entre reducción de tasa de flujo salival y caries. El objetivo del presente estudio fue determinar la asociación entre el estado nutricional, la tasa de flujo salival y el riesgo de caries en preescolares. Se estudiaron 60 niños de 3 a 6 años de edad, que concurrían a Jardines de Infantes del conurbano de la ciudad de Buenos Aires, Argentina. En este grupo de niños se midió el peso corporal y la talla. Se calculó el índice de masa corporal y se categorizó antropométricamente a la población según OMS 2007. (Programa WHO Anthro). Se determinó el riesgo de caries. La saliva se recolectó en frascos estériles, graduados, de boca ancha sin estimulación y sin restricciones alimentarias. Se determinó la tasa de flujo salival (TFS). El análisis estadísticos e realizó con el Test de Pearson. Presentaron caries el 56.7 por ciento (IC95 por ciento: 37.7-74.0) de los niños adecuados (Ad) antropométricamente y el 37.0 por ciento (IC95 por ciento: 20.1-57.5) de los niños con sobrepeso y obesidad (SP/O). El odds ratio para caries (OR=3.78; IC95 por ciento: 1.2–11.8, p=0.02) fue casi 4 veces mayor en los niños Ad, comparados con los SP/O. La TFS fue 0.534 ± 0.318 ml/min en Ad y 0.439 ± 0.234 ml/min en SP/O. El test de Pearson no evidenció correlación entre la TFS y el estado nutricional (r=0.004592, p=0.5977). A pesar que los niños con sobrepeso y obesidad tienen menor presencia de caries no se encontró correlación entre el estado nutricional y tasa de flujo salival.


Modéer T. et al. (2011) afirman que en las poblaciones deadolescentes obesos existe asociación entre reducción de tasade flujo salival y caries. El objetivo del presente estudio fuedeterminar la asociación entre el estado nutricional, la tasa deflujo salival y el riesgo de caries en preescolares. Se estudiaron60 niños de 3 a 6 años de edad, que concurrían a Jardines deInfantes del conurbano de la ciudad de Buenos Aires,Argentina. En este grupo de niños se midió el peso corporal yla talla. Se calculó el índice de masa corporal y se categorizó antropométricamente a la población según OMS 2007. (Programa WHO Anthro). Se determinó el riesgo de caries. La saliva se recolectó en frascos estériles, graduados, de bocaancha sin estimulación y sin restricciones alimentarias. Se determinó la tasa de flujo salival (TFS). El análisis estadísticos e realizó con el Test de Pearson. Presentaron caries el 56.7% (IC95%: 37.7-74.0) de los niños adecuados (Ad) antropométricamente y el 37.0% (IC95%: 20.1-57.5) de los niños con sobrepeso y obesidad (SP/O). El odds ratio paracaries (OR=3.78; IC95%: 1.2–11.8, p=0.02) fue casi 4 veces mayor en los niños Ad, comparados con los SP/O. La TFS fue 0.534 ± 0.318 ml/min en Ad y 0.439 ± 0.234 ml/min en SP/O.El test de Pearson no evidenció correlación entre la TFS y el estado nutricional (r=0.004592, p=0.5977). A pesar que los niños con sobrepeso y obesidad tienen menor presencia de caries no se encontró correlación entre el estado nutricional y tasa de flujo salival.


Assuntos
Humanos , Masculino , Feminino , Pré-Escolar , Cárie Dentária/diagnóstico , Cárie Dentária/epidemiologia , Suscetibilidade à Cárie Dentária , Salivação/fisiologia , Transtornos da Nutrição Infantil/complicações , Distribuição por Idade e Sexo , Argentina , Peso Corporal , Dieta Cariogênica , Epidemiologia Descritiva , Obesidade/complicações , Fatores de Risco , Serviços de Odontologia Escolar , Análise Estatística
13.
Medicina (B Aires) ; 66(2): 101-7, 2006.
Artigo em Inglês | MEDLINE | ID: mdl-16715756

RESUMO

Developmental malformations are brain abnormalities that occur during embryogenesis. Neuronal migration disorders, including heterotopic lesions, constitute one type of such abnormalities. The aim of the study was to compare the epileptic clinical patterns of patients with periventricular nodular heterotopia (PNH) (G1) with those affected by subcortical heterotopia (SCH) (G2) looking for differences between both groups which, eventually, might suggest the type of the underlying malformation. The variables studied in both groups were: type of the heterotopia depicted on MRI studies, sex, age, age at seizure onset, annual seizure frequency, localization of the ictal symptomatogenic zone, characteristics of the EEG, other associated anomalies on the magnetic resonance images (MRI) besides the heterotopia, and response to treatment. The only difference found between both groups was the type of heterotopia as shown by MRI studies. The other assessed variables did not significantly (p>0.05) differ between groups. No differences in the clinical features characterizing epilepsy could be found in patients with PNH or SCH, being the images the only tool able to differentiate them.


Assuntos
Córtex Cerebral/anormalidades , Coristoma/patologia , Epilepsia/patologia , Neurônios , Adolescente , Adulto , Idoso , Análise de Variância , Córtex Cerebral/patologia , Criança , Pré-Escolar , Eletroencefalografia , Epilepsia/etiologia , Feminino , Humanos , Imagem por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Convulsões/diagnóstico , Convulsões/etiologia , Distribuição por Sexo
14.
Medicina (B.Aires) ; 66(2): 101-107, 2006. ilus, tab
Artigo em Inglês | BINACIS | ID: bin-123453

RESUMO

Developmental malformations are brain abnormalities that occur during embryogenesis. Neuronalmigration disorders, including heterotopic lesions, constitute one type of such abnormalities. Theaim of the study was to compare the epileptic clinical patterns of patients with periventricular nodular heterotopia(PNH) (G1) with those affected by subcortical heterotopia (SCH) (G2) looking for differences between bothgroups which, eventually, might suggest the type of the underlying malformation. The variables studied in bothgroups were: type of the heterotopia depicted on MRI studies, sex, age, age at seizure onset, annual seizure frequency,localization of the ictal symptomatogenic zone, characteristics of the EEG, other associated anomalies onthe magnetic resonance images (MRI) besides the heterotopia, and response to treatment. The only differencefound between both groups was the type of heterotopia as shown by MRI studies. The other assessed variablesdid not significantly (p>0.05) differ between groups. No differences in the clinical features characterizing epilepsycould be found in patients with PNH or SCH, being the images the only tool able to differentiate them. (AU)


Heterotopía neuronal nodular y subcortical en pacientes adultos con epilepsia. Las malformacionesde la corteza cerebral son un grupo de entidades que se producen durante las etapasdel desarrollo embrionario y cuya manifestación clínica puede ser la epilepsia. Estas malformaciones puedenser diagnosticadas in vivo a través de las imágenes por resonancia magnética (IRM). Un subtipo particular deéstas lo constituyen los trastornos en la migración neuronal, dentro de los cuales se ubican las heterotopías(HT). El objetivo del estudio fue comparar enfermos portadores de HT periventriculares (G1) con aquellos portadoresde HT subcorticales (G2). Se analizaron las variables sexo, edad y edad de inicio de la epilepsia (EI) enaños, antecedentes familiares (AF) o prenatales (AP), frecuencia anual de crisis (FAC) y característicassemiológicas de las crisis, hallazgos en el EEG e IRM y respuesta al tratamiento farmacológico. G1 (n=13): 8mujeres (61.5%), edad promedio 32.9 ± 11.5 (rango 20-59), EI 13.7 ± 7.6 (rango 2-23), AF 1 caso (7.7%), AP en1 (7.7%), FAC 28.3 ± 31.4 (rango 0-120), crisis multifocales en 5 (38.5%), crisis temporales en 5 pacientes (38.5%),EEG epileptiforme (EEGE) en 7 casos (53.8%), anomalías asociadas en las IRM (AAIRM) en 8 sujetos (61.5%) y4 casos refractarios al tratamiento (30.7%). G2 (n=8): 6 mujeres (75%), edad promedio 30 ± 9.7 (rango 13-43), EI11.1 ± 6.3 (rango 1-19), AP 2 (25%), FAC 30 ± 39.5 (rango 0-120), crisis multifocales en 4 sujetos (50%), crisistemporales en 5 pacientes (62.5%), EEGE en 7 casos (87.5%), AAIRM en 3 casos (37.5%) y 1 caso refractario altratamiento (12.5%). El análisis de las diferentes variables clínicas analizadas no mostró diferencias significativasentre ambos grupos, siendo las imágenes el único elemento que permitió su diferenciación. (AU)


Assuntos
Estudo Comparativo , Humanos , Masculino , Feminino , Pré-Escolar , Criança , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Córtex Cerebral/anormalidades , Coristoma/patologia , Epilepsia/diagnóstico , Neurônios , Córtex Cerebral/patologia , Epilepsia/etiologia , Neurônios/metabolismo , Neurônios/patologia , Eletroencefalografia , Imagem por Ressonância Magnética , Estudos Retrospectivos , Análise de Variância , Convulsões/diagnóstico , Distribuição por Sexo
15.
Medicina (B.Aires) ; 66(2): 101-107, 2006. ilus, tab
Artigo em Inglês | BINACIS | ID: bin-119586

RESUMO

Developmental malformations are brain abnormalities that occur during embryogenesis. Neuronalmigration disorders, including heterotopic lesions, constitute one type of such abnormalities. Theaim of the study was to compare the epileptic clinical patterns of patients with periventricular nodular heterotopia(PNH) (G1) with those affected by subcortical heterotopia (SCH) (G2) looking for differences between bothgroups which, eventually, might suggest the type of the underlying malformation. The variables studied in bothgroups were: type of the heterotopia depicted on MRI studies, sex, age, age at seizure onset, annual seizure frequency,localization of the ictal symptomatogenic zone, characteristics of the EEG, other associated anomalies onthe magnetic resonance images (MRI) besides the heterotopia, and response to treatment. The only differencefound between both groups was the type of heterotopia as shown by MRI studies. The other assessed variablesdid not significantly (p>0.05) differ between groups. No differences in the clinical features characterizing epilepsycould be found in patients with PNH or SCH, being the images the only tool able to differentiate them. (AU)


Heterotopía neuronal nodular y subcortical en pacientes adultos con epilepsia. Las malformacionesde la corteza cerebral son un grupo de entidades que se producen durante las etapasdel desarrollo embrionario y cuya manifestación clínica puede ser la epilepsia. Estas malformaciones puedenser diagnosticadas in vivo a través de las imágenes por resonancia magnética (IRM). Un subtipo particular deéstas lo constituyen los trastornos en la migración neuronal, dentro de los cuales se ubican las heterotopías(HT). El objetivo del estudio fue comparar enfermos portadores de HT periventriculares (G1) con aquellos portadoresde HT subcorticales (G2). Se analizaron las variables sexo, edad y edad de inicio de la epilepsia (EI) enaños, antecedentes familiares (AF) o prenatales (AP), frecuencia anual de crisis (FAC) y característicassemiológicas de las crisis, hallazgos en el EEG e IRM y respuesta al tratamiento farmacológico. G1 (n=13): 8mujeres (61.5%), edad promedio 32.9 ± 11.5 (rango 20-59), EI 13.7 ± 7.6 (rango 2-23), AF 1 caso (7.7%), AP en1 (7.7%), FAC 28.3 ± 31.4 (rango 0-120), crisis multifocales en 5 (38.5%), crisis temporales en 5 pacientes (38.5%),EEG epileptiforme (EEGE) en 7 casos (53.8%), anomalías asociadas en las IRM (AAIRM) en 8 sujetos (61.5%) y4 casos refractarios al tratamiento (30.7%). G2 (n=8): 6 mujeres (75%), edad promedio 30 ± 9.7 (rango 13-43), EI11.1 ± 6.3 (rango 1-19), AP 2 (25%), FAC 30 ± 39.5 (rango 0-120), crisis multifocales en 4 sujetos (50%), crisistemporales en 5 pacientes (62.5%), EEGE en 7 casos (87.5%), AAIRM en 3 casos (37.5%) y 1 caso refractario altratamiento (12.5%). El análisis de las diferentes variables clínicas analizadas no mostró diferencias significativasentre ambos grupos, siendo las imágenes el único elemento que permitió su diferenciación. (AU)


Assuntos
Estudo Comparativo , Humanos , Masculino , Feminino , Pré-Escolar , Criança , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Córtex Cerebral/anormalidades , Coristoma/patologia , Epilepsia/diagnóstico , Neurônios , Córtex Cerebral/patologia , Epilepsia/etiologia , Neurônios/metabolismo , Neurônios/patologia , Eletroencefalografia , Imagem por Ressonância Magnética , Estudos Retrospectivos , Análise de Variância , Convulsões/diagnóstico , Distribuição por Sexo
16.
Medicina (B.Aires) ; 66(2): 101-107, 2006. ilus, tab
Artigo em Inglês | LILACS | ID: lil-440396

RESUMO

Developmental malformations are brain abnormalities that occur during embryogenesis. Neuronalmigration disorders, including heterotopic lesions, constitute one type of such abnormalities. Theaim of the study was to compare the epileptic clinical patterns of patients with periventricular nodular heterotopia(PNH) (G1) with those affected by subcortical heterotopia (SCH) (G2) looking for differences between bothgroups which, eventually, might suggest the type of the underlying malformation. The variables studied in bothgroups were: type of the heterotopia depicted on MRI studies, sex, age, age at seizure onset, annual seizure frequency,localization of the ictal symptomatogenic zone, characteristics of the EEG, other associated anomalies onthe magnetic resonance images (MRI) besides the heterotopia, and response to treatment. The only differencefound between both groups was the type of heterotopia as shown by MRI studies. The other assessed variablesdid not significantly (p>0.05) differ between groups. No differences in the clinical features characterizing epilepsycould be found in patients with PNH or SCH, being the images the only tool able to differentiate them.


Heterotopía neuronal nodular y subcortical en pacientes adultos con epilepsia. Las malformacionesde la corteza cerebral son un grupo de entidades que se producen durante las etapasdel desarrollo embrionario y cuya manifestación clínica puede ser la epilepsia. Estas malformaciones puedenser diagnosticadas in vivo a través de las imágenes por resonancia magnética (IRM). Un subtipo particular deéstas lo constituyen los trastornos en la migración neuronal, dentro de los cuales se ubican las heterotopías(HT). El objetivo del estudio fue comparar enfermos portadores de HT periventriculares (G1) con aquellos portadoresde HT subcorticales (G2). Se analizaron las variables sexo, edad y edad de inicio de la epilepsia (EI) enaños, antecedentes familiares (AF) o prenatales (AP), frecuencia anual de crisis (FAC) y característicassemiológicas de las crisis, hallazgos en el EEG e IRM y respuesta al tratamiento farmacológico. G1 (n=13): 8mujeres (61.5%), edad promedio 32.9 ± 11.5 (rango 20-59), EI 13.7 ± 7.6 (rango 2-23), AF 1 caso (7.7%), AP en1 (7.7%), FAC 28.3 ± 31.4 (rango 0-120), crisis multifocales en 5 (38.5%), crisis temporales en 5 pacientes (38.5%),EEG epileptiforme (EEGE) en 7 casos (53.8%), anomalías asociadas en las IRM (AAIRM) en 8 sujetos (61.5%) y4 casos refractarios al tratamiento (30.7%). G2 (n=8): 6 mujeres (75%), edad promedio 30 ± 9.7 (rango 13-43), EI11.1 ± 6.3 (rango 1-19), AP 2 (25%), FAC 30 ± 39.5 (rango 0-120), crisis multifocales en 4 sujetos (50%), crisistemporales en 5 pacientes (62.5%), EEGE en 7 casos (87.5%), AAIRM en 3 casos (37.5%) y 1 caso refractario altratamiento (12.5%). El análisis de las diferentes variables clínicas analizadas no mostró diferencias significativasentre ambos grupos, siendo las imágenes el único elemento que permitió su diferenciación.


Assuntos
Humanos , Masculino , Feminino , Pré-Escolar , Criança , Adolescente , Adulto , Pessoa de Meia-Idade , Córtex Cerebral/anormalidades , Coristoma/patologia , Epilepsia/diagnóstico , Neurônios , Análise de Variância , Córtex Cerebral/patologia , Eletroencefalografia , Epilepsia/etiologia , Imagem por Ressonância Magnética , Neurônios/metabolismo , Neurônios/patologia , Estudos Retrospectivos , Distribuição por Sexo , Convulsões/diagnóstico
17.
Medicina [B.Aires] ; 61(1): 53-6, 2001. tab
Artigo em Espanhol | BINACIS | ID: bin-10516

RESUMO

Magnetic Resonance Imaging (MRI) is the method of choice to search for epileptogenic lesions. We correlated MRI findings with the epileptogenic zone (EZ) depicted by clinical and electroencephalographic (EEG) data. We studied 400 clinical records of patients who had been submitted to MRI studies and we analyzed, retrospectively, their ictal semiology, EEG characteristics and response to treatment. They were classified into 3 groups: A) temporal lobe epilepsy, B) frontal lobe epilepsy and C) parieto-occipital epilepsy. We included 155 patients: Group A) 68 cases (43.9 per cent), 28 men (41.1 per cent), mean age 32 +/- 11 years old, abnormal IMR in 44 (64.7 per cent), refractory to treatment 48 (70.5 per cent). Group B) 68 cases (43.9 per cent), 38 men (55.8 per cent), mean age 30 +/- 15 years old, abnormal IMR in 26 (38.2 per cent), refractory to treatment 30 (44.1 per cent). Group C) 19 cases (12.2 per cent), 13 men (68.4 per cent), mean age 27 +/- 11 years old, abnormal IMR in 11 (57.8 per cent), refractory to treatment 12 (63.1 per cent). Results showed that there were higher possibilities of detecting lesions which correlate with EZ in temporal than in frontal or parieto-occipital lobes epilepsy. The chances to find abnormalities on the MRI were 5 times higher in refractory patients than in those who were non-refractory. (Au)


Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Adulto , Pessoa de Meia-Idade , Idoso , Imagem por Ressonância Magnética/métodos , Eletroencefalografia/métodos , Epilepsias Parciais/fisiopatologia , Epilepsias Parciais/diagnóstico , Epilepsias Parciais/tratamento farmacológico , Estudos Retrospectivos
18.
Medicina (B.Aires) ; 61(1): 53-6, 2001. tab
Artigo em Espanhol | LILACS | ID: lil-286379

RESUMO

Magnetic Resonance Imaging (MRI) is the method of choice to search for epileptogenic lesions. We correlated MRI findings with the epileptogenic zone (EZ) depicted by clinical and electroencephalographic (EEG) data. We studied 400 clinical records of patients who had been submitted to MRI studies and we analyzed, retrospectively, their ictal semiology, EEG characteristics and response to treatment. They were classified into 3 groups: A) temporal lobe epilepsy, B) frontal lobe epilepsy and C) parieto-occipital epilepsy. We included 155 patients: Group A) 68 cases (43.9 per cent), 28 men (41.1 per cent), mean age 32 +/- 11 years old, abnormal IMR in 44 (64.7 per cent), refractory to treatment 48 (70.5 per cent). Group B) 68 cases (43.9 per cent), 38 men (55.8 per cent), mean age 30 +/- 15 years old, abnormal IMR in 26 (38.2 per cent), refractory to treatment 30 (44.1 per cent). Group C) 19 cases (12.2 per cent), 13 men (68.4 per cent), mean age 27 +/- 11 years old, abnormal IMR in 11 (57.8 per cent), refractory to treatment 12 (63.1 per cent). Results showed that there were higher possibilities of detecting lesions which correlate with EZ in temporal than in frontal or parieto-occipital lobes epilepsy. The chances to find abnormalities on the MRI were 5 times higher in refractory patients than in those who were non-refractory.


Assuntos
Humanos , Masculino , Feminino , Criança , Adolescente , Adulto , Pessoa de Meia-Idade , Eletroencefalografia/métodos , Epilepsias Parciais/fisiopatologia , Imagem por Ressonância Magnética/métodos , Epilepsias Parciais/diagnóstico , Epilepsias Parciais/tratamento farmacológico , Estudos Retrospectivos
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