Láser de baja potencia como coadyuvante en tratamiento endodóntico de pieza con reabsorción interna y lesión apical: reporte de un caso / Use of low level laser as an adjunct in endodontic treatment of teeth with internal resorption and apical lesión

La reabsorción radicular interna es infrecuente en dentición permanente, la mayoría de los casos se observan en dientes anteriores, su etiología no está del todo clara, es por esto que el tratamiento para este tipo de lesiones es la endodoncia. Se presenta el caso de una paciente sexo femenino, 38 años de edad, sin antecedes médicos relevantes, derivada para evaluación de diente 2.2 con mal pronóstico. El diagnóstico es de absceso apical agudo, pieza con reabsorción interna y lesión apical. Se realiza endodoncia con cementos biocerámicos y aplicación de láser terapéutico de 808 nm de longitud de onda, con parámetros específicos para acelerar la reparación del tejido óseo. La terapia de fotobiomodulación con láser de baja potencia parece ser útil como coadyuvante en el proceso de reparación ósea en piezas con lesión apical y reabsorción interna tratadas endodónticamente.

Internal root resorption is infrequent in permanent dentition, most cases are observed in anterior teeth, its etiology is not entirely clear, which is why the treatment for this type of lesion is endodontics.We present the case of a 38-year-old female patient, without relevant medical history, referred for evaluation of tooth 2.2 with a poor prognosis. Diagnosis Acute apical abscess, tooth with internal resorption and apical lesion. Endodontics are performed with bioceramic cements and the application of a 808 nm wavelength therapeutic laser, with specific parameters to accelerate bone tissue repair.Low-level laser photobiomodulation therapy appears to be useful as an adjunct in the bone repair process in endodontically treated teeth with apical lesion and internal resorption.

Calidad de vida en pacientes chilenas sobrevivientes de cáncer de mama / Quality of life in Chilean breast cancer survivors

Background: Quality of Life (QOL) assessment may evaluate the impact of diseases and their treatment on the overall well-being of patients. Aim: To assess QOL in Chilean breast cancer survivors. Patients and Methods: Ninety one female breast cancer patients aged 60 ± 10 years, who finished their oncologic treatment at least a year prior to the assessment, who were disease free and in medical follow-up were included in the study. They completed the European Organization for Research and Treatment of Cancer (EORTC) QLQ-C30 core questionnaire and the breast cancer module QLQ-BR23. Results: Forty eight percent of respondents were long term survivors (more than five years). Global QOL scores were high (73.6 ± 18.2), emotional scale had the lowest scores in QLQ-C30 functional scales (72.1). Symptoms with the highest scores were: Insomnia (= 21.2), pain (= 20.8), and fatigue (= 19.1). Body image, sexual function, and concern about the future were the most relevant problems. Body image was superior in patients with breast-conserving surgery (p = 0.008), and cognitive function was better in patients in early disease stage (p = 0.03) and in those with more than five years of survival (p = 0.04). Conclusions: Even when global QOL scores were high, some symptoms were prevalent. Awareness about these problems and symptoms should improve their diagnosis and treatment.

Calidad de vida en cáncer de mama: validación del cuestionario BR23 en Chile / Validation of BR23 questionnaire for the assessment of quality of life of breast cancer patients in Chile

Background: Quality of Life assessment in oncologic patients evaluates the impact ana sequels of the disease ana the adverse effects of available treatments. Aim: To validate in Chile the breast cáncer specific-questionnaire (BR23) developed by the European Organization for Research and Treatment of Cancer (EORTC). Patients and Methods: After performing a linguistic validation of the BR23 according to EORTC instructions, its psychometric properties were tested in 103 patients with breast cancer whose ages ranged from 34 to 83 years. Infernal consistency ofthe scales was assessed using the Cronbach's alpha coefficient. The test-retest correlations of each scale (n = 83) were evaluated. The correlation ofBR23 scales with SF36 version 2 and C30 version 3.0 scales was also assessed. The sensitivity and specificity of the instrument were analyzed using receiver operating characteristic curves (ROC). Results: Alpha values showed acceptable levels of internal consistency, ranging between 0.702 and 0.917 in all scales of BR23. The statistical analysis revealed significant test-retest correlations in most scales ofBR23. The correlations between BR23 and similar domains of C30 and SF36 questionnaires were also significant. The BR23 questionnaire demonstrated satisfactory levels of sensitivity and specificity when compared with the SF-36 scale. Conclusions: The BR23 questionnaire adapted for use in Chile is linguistically appropriate and psychometrically valid.

Reconstrucción mamaria postmastectomía: revisión de 28 casos / Postmastectomy breast reconstruction: review of 28 cases

El objetivo de este trabajo es evaluar las reconstrucciones mamarias operadas en el Hospital del Salvador y Hospital Luis Tisné, sus complicaciones y grado de satisfacción cosmética de las pacientes. Se analizan en forma retrospectiva 26 pacientes con mastectomía, a las que se les realizó reconstrucción mamaria inmediata o diferida usando colgajo musculocutáneo de recto abdominal (TRAM). Mediante una encuesta se evaluó el grado de satisfacción de las pacientes. En un período de 68 meses se operaron 28 reconstrucciones mamarias en 26 pacientes. Hubo un 14,2 por ciento de complicaciones, una necrosis parcial de colgajo, una necrosis parcial de la piel nativa de la mama, una dehiscencia de la sutura umbilical y una hernia de pared. Veinticinco pacientes evaluaron con nota 7 el resultado cosmético y una con nota 3. Se concluye que el TRAM es una buena técnica de reconstrucción mamaria con escasas complicaciones, buen resultado estético e importante grado de satisfacción de parte de las pacientes.