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1.
Acta odontol. venez ; 47(4): 167-173, dic. 2009.
Article in Spanish | LILACS | ID: lil-630226

ABSTRACT

De los diversos procesos infecciosos que se suscitan en la cavidad bucal humana, las enfermedades periodontales tienen especial importancia ya que cada día que pasa son más las personas que se ven afectadas por estas patologías. Su etiología y desarrollo se ha relacionado desde muchos años con la presencia de microorganismos periodontopatógenos, destacándose entre estos los pertenecientes a la Familia Bacteroidaeceae, representados por los Géneros Porphyromonas y Prevotella. Constantemente surgen nuevas especies del Género Prevotella, las cuales están implicadas en mayor o menor grado en causar daño al periodonto y es por ello que resulta de vital importancia para el Odontólogo el hecho de conocer las especies de este Género que han sido reclasificadas, así como la detección e identificación de nuevas especies a los fines de aplicar el tratamiento antimicrobiano más adecuado y garantizar resultados exitosos luego de la implementación del mismo.


Periodontal diseases are one of the most important oral pathologies occurred in the human oral cavity. There are more people who have been affected by periodontal pathogens. Some of the microorganisms that are related with periodontal diseases belong to the Family Bacteroidaceae, represented by Genus Porphyromonas and Prevotella. In recient years, it can found new species of the Genus Prevotella and the dentist should know about them like resident microflora of the oral cavity and their implications in periodontal diseases, in order to establish the most convenient antimicrobial treatment for these pathologies.

3.
Rev. Inst. Nac. Hig ; 38(2): 38-42, dic. 2007. ilus, tab
Article in Spanish | LILACS | ID: lil-631746

ABSTRACT

La anemia y la poiquilocitosis son manifestaciones clínicas características de la tripanosomosis por Trypanosoma vivax. No obstante, poco se sabe acerca de la multicausalidad de las alteraciones de forma y tamaño que experimentan los eritrocitos durante la infección. La parasitemia, las dimensiones tripomastigóticas y el área eritrocítica fueron registradas a lo largo de las infecciones. El análisis estadístico reveló cambios significativos en las variables consideradas. El estudio demostró relación entre las dimensiones tripomastigóticas y el área eritrocítica. Además, probó que el patrón de cambio morfométrico experimentado por tripomastigotes de aislados diferentes en distintos hospedadores, pudiera ser un evento hospedador-dependiente.


Anemia and poikilocytosis are clinical manifestations characteristic to tripanosomosis by Trypanosoma vivax. Nevertheless, little is known about the multicausality of the form and size alterations that experience the erythrocytes during the infection. The parasitemia, the trypomastigotic dimensions and the erythrocytic area were registered throughout the infections. The statistical analysis reveals significant changes in the considered variables. The study demonstrated relationship between the trypomastigotic dimensions and the erythrocytic area. In addition, it proved that the pattern of trypomastigote morphometric change of different isolates experienced in different hosts could be a host-dependent event.

4.
Ital Heart J Suppl ; 1(11): 1480-4, 2000 Nov.
Article in Italian | MEDLINE | ID: mdl-11109200

ABSTRACT

This report describes the case of a 60-year-old patient, affected by alcoholic hypokinetic dilated cardiomyopathy, drug refractory, without surgical indication for ischemic and valvular diseases, implanted with a biventricular pacemaker. The implant was followed by a rapid clinical improvement which allowed the patient's discharge in satisfactory conditions and with strongly reduced diuretic therapy. Ventricular pacing became only left due to increased right ventricular threshold. As a consequence a remarkable decrease in cardiocirculatory compensation was observed, with a new hospitalization due to worsening dyspnea and edema. The instrumental evaluation showed a worsening of the parameters linked to interventricular delay, particularly the interventricular septum activation delay and the reduction in its kinesis. An increase in the ventricular stimulation amplitude led again to a complete capture in both ventricles, with an improvement of interventricular synchronization parameters and septal kinesis. This fact turned into a rapid recovery of satisfactory cardiocirculatory compensation with subsequent patient's discharge.


Subject(s)
Cardiac Pacing, Artificial , Electrocardiography , Heart Ventricles/physiopathology , Humans , Male , Middle Aged
5.
G Ital Cardiol ; 29(6): 662-8, 1999 Jun.
Article in Italian | MEDLINE | ID: mdl-10396670

ABSTRACT

BACKGROUND: Free-wall rupture of the heart is the second most common cause of death in acute myocardial infarction (AMI), following pump failure. Acute rupture is more common and rapidly fatal, while subacute rupture, which accounts for about 30% of total cases of mortality in AMI, can be diagnosed early by clinical signs with the support of echocardiography in coronary intensive care units. METHODS: From March 1996 to December 1997, 293 patients diagnosed with acute myocardial infarction were admitted to the coronary intensive care unit of our hospital. Of these patients, 71 (23.8%) were treated with thrombolysis within 6 hours of onset of symptoms. All patients were observed daily with M-2D color Doppler echocardiography and in the event of renewed chest pain, electrocardiogram changes, abrupt hypotension, syncope or clinical signs of low output syndrome. RESULTS: We observed 11 cases (3.8%) of free-wall rupture of the heart in acute myocardial infarction with echocardiography, 6 females and 5 males, with a mean age of 74.2 +/- 7.8 years (min. 56-max 84), none of whom had prior AMI. Six of them received thrombolytic therapy, six were hypertensive (54.5%) and three were diabetics (27.2%). Surgical repair was performed in two patients with subacute rupture, but one died a few days later. The echocardiography data at bedside for diagnosis of cardiac rupture were confirmed in 5 patients with autopsy and intraoperatively in two of them. CONCLUSIONS: Routine use of echocardiography in coronary intensive care units allows prompt diagnosis of cardiac rupture in acute myocardial infarction, and in the event of subacute rupture it can accelerate surgical decision-making.


Subject(s)
Critical Care , Echocardiography, Doppler, Color/methods , Echocardiography/methods , Heart Rupture, Post-Infarction/diagnostic imaging , Aged , Coronary Care Units , Electrocardiography , Female , Fibrinolytic Agents/therapeutic use , Heart Rupture, Post-Infarction/pathology , Heart Rupture, Post-Infarction/therapy , Humans , Male , Middle Aged , Myocardium/pathology , Recombinant Proteins/therapeutic use , Streptokinase/administration & dosage , Thrombolytic Therapy , Tissue Plasminogen Activator/therapeutic use
6.
G Ital Cardiol ; 29(5): 558-61, 1999 May.
Article in Italian | MEDLINE | ID: mdl-10367225

ABSTRACT

This article reports a case of infective endocarditis in a patient with a permanent pacemaker 15 months after the generator had been replaced. The patient had Staphylococcus epidermidis isolated in several blood cultures. No interventional or clinical procedure with any risk of bacteremia was performed, nor was any infective complication of the pocket observed. Thus, the portal of entry of the etiologic agent is unclear. The role of transesophageal echocardiography in detecting pacemaker-induced endocarditis is very important and therapy of choice involves removal of the pacemaker system as soon as possible.


Subject(s)
Endocarditis, Bacterial/diagnostic imaging , Pacemaker, Artificial/adverse effects , Prosthesis-Related Infections/diagnostic imaging , Staphylococcal Infections/diagnostic imaging , Staphylococcus epidermidis , Aged , Aged, 80 and over , Anti-Bacterial Agents , Chronic Disease , Combined Modality Therapy , Drug Therapy, Combination/therapeutic use , Echocardiography , Electrodes/adverse effects , Endocarditis, Bacterial/therapy , Humans , Male , Prosthesis-Related Infections/therapy , Retreatment , Staphylococcal Infections/therapy , Tricuspid Valve/diagnostic imaging
7.
Acta odontol. venez ; 36(2): 85-91, 1998. graf
Article in Spanish | LILACS | ID: lil-258375

ABSTRACT

La diabetes mellitus es considerada un problema epidemiológico en Venezuela, en vista de que afecta aproximadamente a un 7 por ciento de la población. En nuestro país no existen estudios tendientes a determinar sus principales manifestaciones bucales. Por tal motivo, el objetivo de la presente investigación fue estudiar las principales manifestaciones bucales de la diabetes en un grupo de pacientes venezolanos. Para tal fin, fueron seleccionados 20 pacientes diabéticos y 20 pacientes sanos (grupo control), quienes fueron evaluados desde el punto de vista sistémico y odontológico. Los resulados del presente estudio demostraron que el sexo predominantemente afectado por la enfermedad fue el sexo femenino, y el grupo etario el correspondiente a 41-50 años


Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Child, Preschool , Adolescent , Adult , Middle Aged , Dental Care for Chronically Ill/methods , Diabetes Mellitus/complications , Mouth Diseases/etiology , Age Distribution , Diabetes Mellitus, Type 1/epidemiology , Diabetes Mellitus, Type 2/epidemiology , Diabetes Mellitus/epidemiology , Stomatitis, Denture/epidemiology , Patient Selection , Periodontal Diseases/epidemiology , Periodontitis/epidemiology , Risk Factors , Sex Distribution
8.
Acta odontol. venez ; 28(1): 29-35, ene.-abr.1990. tab
Article in Spanish | LILACS | ID: lil-93338

ABSTRACT

En el presente estudio se utilizaron 80 ratas machos de raza Spragley Dawley de 30 a 35 días de nacidas, distribuidas en 4 grupos (uno control y tres experimentales). Tanto al grupo control como a los experimentales se les administró una dieta altamente cariogénica (2.000 de Keyes) durante 55 días, y los agentes anticariogénicos y el agua en los teteros. A los grupos experimentales 1,2 y 3 se les administró en el agua NaF (125 ppm), 0,5% de NK y la mezcla 0,5 de NK + Na, respectivamente. Los resultados obtenidos demostraron que los animales tratados con flúor tenían menos índice de placa dental (0,11) al compararlos con el grupo control (0,83), mientras que los grupos tratados con NK y la mezcla (NK + Na, tenían un índice de placa mayor (0,82 y 0,52, respectivamente). En cuanto al índice de caries pudimos observar que el grupo de animales tratados con NK mostró un índice de caries de 0,23. produciendo este compuesto una reducción de 48 por ciento en este índice al compararlo con el control. Al comparar el efecto de la mezcla (NK + NaF) con el que produjeron sus componentes utilizados individualmente (NK, NaF), se observó que utilizados solos fueron más efectivos que cuando se utilizaron combinados, especialmente en NaF el cual produjo el 100 por ciento de reducción en el índice de caries. Estos resultados nos sugieren que en nuestras condiciones experimentales el NaF es más efectivo como agente antiplaca y anticariogénico


Subject(s)
Rats , Dental Caries/epidemiology , Sodium Fluoride/therapeutic use , Diet, Cariogenic
9.
s.l; s.n; oct. 1987. 130 p. ilus, tab.
Monography in Spanish | LILACS | ID: lil-73867

ABSTRACT

Se hace un estudio de los principales agentes virales asociados a cuadros diarreicos en niños venezolanos, a fin de caracterizarlos y establecer sus patrones epidemiológicos


Subject(s)
Infant , Humans , Male , Female , Gastroenteritis/epidemiology , Gastroenteritis/immunology , Gastroenteritis/transmission , Rotavirus/isolation & purification , Adenoviruses, Human/isolation & purification , Electrophoresis , Gastroenteritis/mortality
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