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1.
Rev. méd. Chile ; 146(2): 141-149, feb. 2018. tab, graf
Article in Spanish | LILACS | ID: biblio-961371

ABSTRACT

Background: Contrast-enhanced spectral mammography or "contrast mammography" has a better cost effectiveness than breast magnetic resonance for confirmation of suspicious lesions detected on breast screening programs. Aim: To report the experience of a single center in Santiago. Material and Methods: All patients referred for contrast mammography between July 2015 and October 2017 were studied. We recorded the patient risk factors for breast cancer. In 85 patients with suspicious lesions, biopsy results were available. Results: We analyzed 465 contrast mammographies. The most common clinical indications were suspicion of cancer and previous inconclusive studies. Mass type lesions were detected in 33% of the studies. Non-mass-type lesions were observed in 10% of cases and findings compatible with papillomatosis in 2%. Fifty five percent of the studies had no visible lesions. In the 85 patients with a pathological study of the biopsy, the sensitivity of the contrast mammography was 100%, with a diagnostic accuracy of 85%, positive and negative predictive values of 82 and 100% respectively. Conclusions: Contrast mammography can be of great use for the assessment of patients with an altered conventional mammography, before indicating a magnetic resonance imaging or a percutaneous biopsy.


Subject(s)
Humans , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Young Adult , Breast Neoplasms/diagnostic imaging , Mammography/methods , Image Enhancement , Contrast Media , Mammography/statistics & numerical data , Reproducibility of Results , Risk Factors , Sensitivity and Specificity , Cost-Benefit Analysis , Early Detection of Cancer
2.
Rev. cuba. estomatol ; 36(3): 181-196, sep.-dic. 1999.
Article in Spanish | LILACS | ID: lil-628321

ABSTRACT

Se evalúa la eficacia del osteocoral como material de implante en el tratamiento de bolsas infraóseas en dientes multirradiculares. Se analizaron 14 pacientes que se dividieron en 2 grupos: el primero incluyó a 6 pacientes con un total de 12 defectos, los cuales se evaluaron hasta los 6 meses. El segundo, con 8 pacientes y 16 defectos, que se reevaluaron a los 12 y 24 meses. En los 2 grupos se incluyeron pacientes de ambos sexos, que fueron implantados con osteocoral (grupo estudio) y con hidroxiapatita (grupo control). Se realizó reparación inicial que incluyó remoción de cálculo y pulido de la superficie dentaria, educación y motivación y evaluación del cepillado, que debía mostrar valores iguales o mayores del 80 % en la remoción de placa dentobacteriana. Posteriormente se realizó el implante mediante operación a colgajo. Se realizaron radiografías de control a los 14 días, 6 meses (para el primer grupo) y 12 y 24 meses (para el segundo grupo). Se controló sistemáticamente la higiene bucal en ambos grupos. Se controlaron nuevamente los indicadores clínicos a los 6 meses para el primer grupo, y a los 12 y 24 meses para el segundo. Se observó una disminución estadísticamente significativa en el índice gingival, profundidad de la bolsa y movilidad dentaria para ambos materiales implantológicos, sin que se reportaran grandes diferencias entre éstos. Radiográficamente se observó la presencia de relleno en el defecto original, y no hubo reacciones locales adversas, por lo que se consideró efectivo el tratamiento.


Effectiveness of osteocoral was assessed as material for implants at infraosseous pockets of multirooted teeth. 14 analised patients were divided into 2 groups: first, included 6 cases and 16 defects, which were evaluated ultil 6 months. Second, included 8 cases and 16 defects, evaluated at 12 and 24 months. In both groups, males and women, were included underwent to implants with osteocoral (study group) and hydroxiapatite (controls). Initial repair was performed including removal of calculus and polishing of denture surface, education, motivation, and assessment of tooth-brushing, which must show values similar or greater than 80 % in removal of dentobacterial plaque. Subsequently, implant was carried out by means of surgery or flap. Control X-rays were obtained within 14 days, 6 months (first group), and 12 and 24 months (second group). Systematically, we made control of oral hygiene in both groups. Again, clinical indicators were controlled within 6 months (first group) and 12 and 24 monts (second group). There was an statistically significant decrease in gingival index, pocket deep, and tooth loosening for both implant material, without large differences each another. Radiographically, we observed presence of filling material in original defect. There weren?t adverse local reactions and treatment was considered as effective.

3.
Rev. cuba. estomatol ; 33(2): 91-5, mayo-ago. 1996. tab
Article in Spanish | LILACS | ID: lil-208286

ABSTRACT

Se estudiaron 30 sitios o áreas periodontales que presentaban gingivitis y 30 con periodontitis, con el objetivo de determinar la relación existente entre el sangramiento gingival y la flora microbiana presente en la gingivitis y la periodontitis. Los pacientes seleccionados no presentaban antecedentes de enfermedad general y no habían recibido medicación antimicrobiana ni tratamiento periodontal en los últimos 6 meses; en el caso de las mujeres, no podían estar embarazadas. En los dientes seleccionados se procedió a tomar la muestra cumpliendo con los requisitos establecidos; luego se examinó inmediatamente en el microscopio de campo oscuro. Los resultados obtenidos indica que no hubo relación entre los morfotipos microbianos y los diferentes valores del índice de sangramiento gingival


Subject(s)
Humans , Gingival Hemorrhage , Gingivitis/microbiology , Periodontal Diseases , Periodontitis/microbiology , Tooth/microbiology
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