A Self-Adaptive Automatic Incident Detection System for Road Surveillance Based on Deep Learning.

We present an automatic road incident detector characterised by a low computational complexity for easy implementation in affordable devices, automatic adaptability to changes in scenery and road conditions, and automatic detection of the most common incidents (vehicles with abnormal speed, pedestrians or objects falling on the road, vehicles stopped on the shoulder, and detection of kamikaze vehicles). To achieve these goals, different tasks have been addressed: lane segmentation, identification of traffic directions, and elimination of unnecessary objects in the foreground. The proposed system has been tested on a collection of videos recorded in real scenarios with real traffic, including areas with different lighting. Self-adaptability (plug and play) to different scenarios has been tested using videos with significant scene changes. The achieved system can process a minimum of 80 video frames within the camera's field of view, covering a distance of 400 m, all within a span of 12 s. This capability ensures that vehicles travelling at speeds of 120 km/h are seamlessly detected with more than enough margin. Additionally, our analysis has revealed a substantial improvement in incident detection with respect to previous approaches. Specifically, an increase in accuracy of 2-5% in automatic mode and 2-7% in semi-automatic mode. The proposed classifier module only needs 2.3 MBytes of GPU to carry out the inference, thus allowing implementation in low-cost devices.

Umbilical Fascial Defects are Common and Predict Trocar Site Hernias After Laparoscopic Appendectomy.

INTRODUCTION: Investigations have demonstrated that trocar site hernia (TSH) is an under-appreciated complication of laparoscopic surgery, occurring in as many as 31%. We determined the incidence of fascial defects prior to laparoscopic appendectomy and its impact relative to other risk factors upon the development of TSH. METHODS: TSH was defined as a fascial separation of ≥ 1 cm in the abdominal wall umbilical region on abdominal computerized tomography scan (CT) following laparoscopic appendectomy. Patients admitted to our medical center who had both a preoperative CT and postoperative CT for any reason (greater than 30 days after surgery) were reviewed for the presence of TSH from May 2010 to December 2018. CT scans were measured for fascial defects, while investigators were blinded to film timing (preoperative or postoperative) and patient identity. Demographic information was collected. RESULTS: 241 patients undergoing laparoscopic appendectomy had both preoperative and late postoperative CT. TSH was identified in 49 (20.3%) patients. Mean preoperative fascial gap was 3.3 ± 4.3 mm in those not developing a postoperative hernia versus 14.8 ± 7.3 mm in those with a postoperative hernia (P < .0001). Preoperative fascial defect on CT was predictive of TSH (P < .001, OR = 1.44), with an Area Under the Curve (AUC) of .921 (95%CI: .88-.92). Other major risk factors for TSH were: age greater than 59 years (P < .031, OR = 2.48); and obesity, BMI > 30 (P < .012, OR = 2.14). CONCLUSIONS: The incidence of trocar site hernia was one in five following laparoscopic appendectomy. The presence of a pre-existing fascial defect, advanced age, and obesity were strong predictors for the development of trocar site hernia.

Manifestaciones cardiovasculares en pacientes con dengue durante dos brotes epidémicos en Colombia / Cardiovascular manifestations in dengue fever patients during two epidemic breakouts in Colombia

la afección cardiovascular es una presentación atípica del dengue, que abarca desde bradicardia sinusal asintomática hasta miocarditis grave, aunque no hay datos locales de esta presentación. Objetivo: describir las características clínicas de una serie de pacientes con dengue y evidencia de afección cardiovascular. Materiales y métodos: se realizó un estudio observacional, de corte trasversal, de pacientes admitidos con dengue a un centro de referencia cardiovascular en Medellín, Colombia, durante dos epidemias del virus entre junio de 2010 y diciembre de 2016. Se evaluaron variables clínicas y paraclínicas. Resultados: se registraron un total de 60 pacientes, de los cuales el 30% (18/60) tuvieron compromiso cardiovascular y fueron incluidos en este estudio. La edad media de estos pacientes fue de 63 años y el 56% (10/18) eran hombres. La comorbilidad más frecuente fue la hipertensión arterial esencial (61%, 11/18). La alteración del ritmo cardíaco afectó al 72% (13/18) de los pacientes, con presencia de bloqueo auriculoventricular de primer grado (46%), bradicardia sinusal (38%), fibrilación/aleteo/taquicardia atriales (23%) y ritmo de la unión (8%). La miocarditis y la pericarditis se presentaron en el 17% (3/18) y 11% (2/18) de los pacientes, respectivamente. Otros hallazgos menos comunes fueron la disfunción ventricular izquierda y la angina de pecho (11%, 2/18). No hubo muertes durante la realización del estudio. Conclusiones: las alteraciones asintomáticas del ritmo cardiaco fueron las manifestaciones cardiovasculares más frecuentes del dengue y las afecciones cardiovasculares graves fueron infrecuentes. Se recomienda atención a los síntomas leves de disfunción cardiovascular en los pacientes con dengue

cardiovascular involvement is an atypical presentation of dengue infection. There range from asymptomatic sinus bradycardia to severe life-threatening myocarditis. Data are lacking regarding epidemiology on this topic. Objective: To describe clinical characteristics of patient's series with dengue and evidence of cardiovascular involvement. Materials and methods: It was performed a cross-section, observational study of patients admitted with dengue fever in a cardiovascular reference center in Medellín, Colombia during two epidemic viral outbreaks from June 2010 to December 2016. Results: A total of 60 patients were registred, 30% of them with evidence of cardiovascular involvement. Mean age of patients was 63 years old and 55% were male. Most common comorbidity was hypertension (61%, 11/18). Rhythm disturbances affected 72% (13/18) of patients: first grade AV block (46%), sinus bradycardia (38%), atrial fibrillation/flutter/tachycardia (23%) and junctional rhythm (8%). Myocarditis and pericarditis were present in 17% (3/18) and 11% (2/18) of patients, respectively. Other less common findings were left ventricular dysfunction and angor pectoris (11%, 2/18). There were no deaths during the study period. Conclusions: Asymptomatic rhythm disturbances were the most common cardiovascular manifestations of dengue fever and severe forms of cardiovascular dengue were rare. It is recommended to be attentive to the mild symptoms of cardiovascular dysfunction in patients with dengue