Masas renales pequeñas: predictores de malignidad en una serie de 10 años / Small renal masses: analysis of 152 cases

Background: Small renal masses (SRM) are defined as complex organ-confined solid or cystic lesions < 4 cm. Up to 20% of these can be benign. A conservative management with active surveillance can be done in some patients. However, it is difficult to identify patients with a higher risk of malignancy. Aim: To characterize the clinical, radiological and histopathological aspects of patients with SRM, analyzing predictive factors for tumor aggressiveness. Material and Methods: Retrospective analysis of a cohort of patients undergoing partial or total nephrectomy for renal tumors between 2006 and 2016. All tumors of 4 cm or less were included. Four histological groups were defined: benign, favorable, intermediate and unfavorable. Two categories of risk were also defined: low and high. Preoperative clinical and radiological variables of these patients were analyzed. Results: Data of 152 patients were analyzed. Six percent had a benign histology, and the majority was of intermediate risk (74%). According to histological type, clear cell carcinoma was the most common type (74%). Three percent were benign angiomyolipomas. No malignancy predictive variable was identified. Conclusions: In these patients, the percentage of benign SRM was low. No variable that could predict the presence of a benign or malignant lesion in the definitive biopsy was identified.

Patología oculoplástica: experiencia de 7 años en Hospital del Sistema de Salud Público de Chile / Oculoplastic Pathology: experience of 7 years in Hospital of the Public Health System of Chile

INTRODUCCIÓN: La cirugía oculoplástica estudia y trata los trastornos de párpados, órbita y vías lagrimales. Entre las patologías más importantes por frecuencia e impacto tenemos: ptosis palpebral, blefarochalasis, ectropión y entropión. OBJETIVO: Analizar la experiencia del Hospital El Pino en cuanto al manejo de patología oculoplástica en manos de un cirujano plástico. MATERIALES Y MÉTODO: Estudio descriptivo y retrospectivo. Se revisaron fichas de pacientes operados con diagnóstico de blefarochalasis, ptosis palpebral, ectropión y entropión entre los años 2010 y 2017. Se analizaron datos como edad, sexo, comorbilidades, causa del defecto, cirugía oculoplástica, tipo de anestesia, complicación posoperatoria, tiempo de seguimiento y resultados. RESULTADOS: Entre los años 2010 y 2017 se operaron 79 pacientes con patología oculoplástica, 17 por ptosis palpebral, 42 por blefarochalasis, 14 por ectropión y 6 por entropión, siendo la principal causa senil (93,7%). Las cirugías realizadas fueron: pexia del elevador para Ptosis palpebral, blefaroplastía para blefarochalasis y para ectropión-entropión tarsal strip. La principal técnica anestésica utilizada fue anestesia local + sedación (54,4%). Entre el total de complicaciones posoperatorias tenemos: lagoftalmo (2 casos), ectropión residual (3 casos), conjuntivitis (3 casos), dehiscencia de herida (2 casos) y hematoma palpebral (1 caso). Se reintervinieron 6 pacientes por complicaciones. Los resultados obtenidos según la evaluación subjetiva del cirujano plástico y pacientes fueron regular (5 casos), bueno (20 casos) y muy bueno (54 casos). CONCLUSIÓN: El manejo de la patología oculoplástica requiere en su mayoría de cirugías ambulatorias con buenos resultados y poca morbilidad, lo cual es factible de realizar en un hospital público. Creemos necesario el uso de algún instrumento objetivo para evaluar de mejor manera los defectos palpebrales y su corrección.

INTRODUCTION: The oculoplastic surgery studies and treats disorders of the eyelids, orbit and lacrimal ways. Among the most important pathologies by frequency and impact are: palpebral ptosis, blepharochalasis, ectropion and entropion. AIM: Analyze the experience of El Pino Hospital regarding the management of oculoplastic pathology in the hands of a plastic surgeon. MATERIALS AND METHOD: Descriptive and retrospective study. We reviewed files of patients operated with diagnosis of blepharochalasis, palpebral ptosis, ectropion and entropion between the years 2010 and 2017. Data were analyzed as age, sex, comorbidities, cause of the defect, oculoplastic surgery, type of anesthesia, postoperative complication, follow-up time and results. RESULTS: Between the years 2010 and 2017, 79 patients with oculoplastic pathology operated, 17 for palpebral ptosis, 42 for blefarochalasis, 14 for ectropion and 6 for entropion, being the main senile cause (93,7%). The surgeries performed were: elevator pexis for palpebral ptosis, blepharoplasty for blefarochalasis and for ectropion-entropion tarsal strip. The main anesthetic technique used was local anesthesia + sedation (54,4%). Among the total postoperative complications, we have: lagophthalmos (2 cases), residual ectropion (3 cases), conjunctivitis (3 cases), wound dehiscence (2 cases) and palpebral hematoma (1 case). Six patients were reoperated due to complications. The results obtained according to the subjective evaluation of the plastic surgeon were regular (5 cases), good (20 cases) and very good (54 cases). CONCLUSION: Management of oculoplastic pathology requires mostly ambulatory surgeries with good results and low morbidity, which is feasible to perform in a public hospital. We believe it is necessary to use some objective instrument to better evaluate the palpebral defects and their correction.