RESUMO
@#Introduction: In 2019, according to the World Health Organization (WHO), pneumonia is the leading infectious cause of death in children under the age of five. In 2017, pneumonia killed 808,694 children under five, accounting for 15% of all fatalities among children under the age of five. Methods: An observational analytic survey with a case control design was used as the study approach. The research samples were collected using a simple random sampling procedure with 48 children under the age of five separated into two groups, 24 samples for the case group and 24 samples for the control group. The research was carried out between February and July of 2020. This study tools used were observation sheets and rollmeters.The data was analyzed using univariate and bivariate analysis using the Chi-Square test at a significance level of 0.05. Results: The results showed that there was a relationship between incidence of pneumonia in children under five with different variables, respectively, ventilation area, floor type, wall type, presence of smoke hole. Conclusion: It implies that the community should pay attention to the overall condition of the house, one of which is by improving home ventilation, adjusting the room area to the number of occupants, quitting smoking in the house, and cleaning the floor more often.
RESUMO
Objective To investigate the contrast enhanced ultrasound (CEUS) characteristics of thickened wall type of gallbladder carcinoma and to evaluate their diagnostic value. Methods The CEUS images, clinical information and pathological results of 26 patients with thickened wall type of gallbladder carcinoma and 37 patients having benign gallbladder disease with thickened wall were retrospectively analyzed. CEUS characteristics of thickened wall type of gallbladder carcinoma were investigated and their diagnostic value was evaluated. The age, length of gallbladder, width and thickness of gallbladder wall were analyzed by t test. The CEUS characteristics of gallbladder wall (intensity of gallbladder wall, mucosal morphology and submucosal hypo-enhancement area)were analyzed by χ2 test.The diagnostic test used ROC (receiver operating characteristic) curve to calculate sensitivity, specificity, positive predictive value, negative predictive value and accuracy. Results The gallbladder wall thickness and patient age in malignant group were all larger than those in benign group[(1.63±0.68)cm vs(0.96±0.55)cm,(63.7±10.1)years old vs (53.2±11.8) years old], with statistically significant difference (t=3.70, 4.32, all P<0.001). In the malignant group, CEUS showed irregular mucosal, hyper-enhancement and sub-mucosal hypo-enhancement area, with statistically significant difference(χ2=48.7,42.9,23.8,OR=9.25,6.17,2.47,all P < 0.001).The sensitivity of irregular mucosa, hyper-enhancement and sub-mucosal hypo-enhancement area were all 100.0%, and their accuracy were 93.7%, 90.5% and 76.2% respectively. If lesions with both irregular mucosa and hyper-enhancement were diagnosed as thickened wall type of gallbladder carcinoma, the diagnostic accuracy could be further improved to 98.4%. Conclusion CEUS can facilitate the differential diagnosis of benign and malignant gallbladder diseases with thickened wall in a high diagnostic value.