Continuous intraoperative neural monitoring in thyroid surgery: a Mexican experience.

Intraoperative continuous neural monitoring (C-IONM) during thyroid surgery has been recognized as a useful tool to identify and confirm recurrent laryngeal nerve integrity. The aim of the present study is to analyze electromyographic features and thresholds for normal vocal fold function in our initial experience with C-IONM in thyroid surgery. C-IONM was utilized in 57 patients who underwent thyroid surgery between July 2012 and December 2015. EMG parameters were analyzed looking for potential predictors of postoperative vocal fold dismotility. There were 54 females (94.7%) and 3 males (5.3%) with a mean age of 46.7 ± 11.6 years. C-IONM was successfully registered in 89 of 107 nerves at risk (83.1%). Mean basal amplitude was 727.31 ± 471.25 µV and mean final amplitude was 650.27 ± 526.87 µV (P = 0.095, CI 95% 13.83-167.91). Mean basal latency was 5.23 ± 1.42 mS and mean final latency was 5.18 ± 1.50 mS (P = 0.594, CI 95% 0.39-0.24). Four patients had transient postoperative vocal fold paresis. None of these four patients had loss of signal (LOS), three had transient decrease in amplitude, and one had a normal registry throughout the operation. C-IONM is a useful tool to identify patients in whom intraoperative RLN is at risk during surgery. Final amplitude above 500 µV and no LOS is associated with RLN integrity and normal postoperative vocal fold function.

Contaminación de suelos con huevos de Toxocara sp. en ambientes internos de Instituciones Educativas Estatales de los distritos del cono Norte de Lima / Soil contamination with Toxocara eggs in indoor environments of Educational Instutions from North Lima

Determinar la presencia de huevos de T. canis en el suelo de Instituciones Educativas del Norte de Lima. Metodología: Se recolectó una muestra de suelo en 30 instituciones estatales educativas (IEE) de los siguientes distritos de Lima norte: Comas (n=17), Puente Piedra (n=8), Ancón (n=3) y Carabayllo (n=2). Todas las muestras se procesaron mediante la técnica de concentración por flotación. Resultados y Conclusiones: Se obtuvieron dos muestras positivas lo que representa una frecuencia 6.7%. Las IEE que resultaron positivas correspondían al distrito de Comas y Puente Piedra...

To determine the presence of Toxocara canis eggs on the ground of some Public Schools in North Lima. Methods: Thirty ground samples were collected from Public Schools in the following North Lima districts: Comas (n=17), Puente Piedra (n=8), Ancón (n= 3) and Carabayllo (n=2). Samples were processed using the Concentration by Flotation Technique. Results: Two samples positive, which represents a frequency of 6.7%. The positive samples belong to to the districts of Comas and Puente Piedra...