ObjectiveTo investigate the clinical and CT findings in patients with coronavirus disease 2019 (COVID-19).MethodsThe epidemiological data and clinical manifestations of 83 COVID-19 patients admitted to Chongqing Public Health Medical Center from January 24, 2020 to February 4, 2020 were analyzed retrospectively. According to the clinical classification, they were divided into four groups: mild group 8 patients, common group 62 patients, severe group 10 patients, and critically severe group 3 patients. The CT characteristics and their relationship with clinical classification were analyzed.ResultsThe average age of 70 mild patients was (43.7±15.0) years, 13 severe patients was (57.4±11.8) years. The average age of mild patients was lower than that of severe patients (Z=–3.185, P=0.001). The average course of mild disease was (5.5±4.2) days, lower than that of severe disease (11.8±5.0) days (Z=–3.978, P=0.000). The clinical manifestations were fever in 72 patients, cough in 60 patients, expectoration in 34 patients, asthenia in 25 patients and shortness of breath in 19 patients. Basic diseases were complicated in 16 patients. CT findings: Both lung lobes were affected in 70 patients (93.3%), pure right lung lobe was affected in 3 patients (4.0%), pure left lung lobe was affected in 2 patients (2.7%), and there was no focus in 8 patients. The total number of affected lung segments was 203 in severe type, with an average of 15.6±5.4 and 530 in the common type, with an average of 9.6±5.3. The number of the severe type was more than that in the common type (Z=–3.456, P=0.001). The focus was mainly in the posterior part, 62 in the dorsal and 65 in the posterior basal segments, 41 in the anterior part of the upper lobe, and less in the common type (P<0.05). The main lesions were ground-glass opacities in 74 patients, patchy shadow in 72 patients, piece shadow in 46 patients, strip shadows in 51 patients and consolidation in 34 patients. Among them, the common CT showed patchy shadow in 34 patients (54.8%), less than severe patients in 12 patients (92.3%) (χ2=4.880, P=0.027). There was no significant difference between the mild CT and the severe patients (P>0.05).ConclusionsThere are some radiographic characteristics in COVID-19. Chest CT is helpful for the diagnosis and the judgement of the disease.
Objective To evaluate the disinfection efficacy of alcohol-based hand disinfectants for medical glove surface in continuous operation, and explore approaches of improving hand hygiene compliance. Methods Between March and July 2015, and between March and July 2016, all the nurses (n=5) in Blood Collection Room of Outpatient Department with many patients and frequent sterile operation needed were included in this study. Nurses wearing gloves for hand hygiene and disinfection between March and July 2016 were regarded as the observation group, and those who used alcohol-based disinfectants for routine hand hygiene without gloves between March and July 2015 were designated into the control group. The hand hygiene compliance was compared between the two groups. From March to July 2016, alcohol-based hand disinfectants were used for disinfection on the glove surface during continuous blood sampling by nurses with gloves on their hands. Fifty samples were collected respectively after the gloves were used for 1, 2, 5, 10, and 15 continuous times for blood sampling. Then, the samples were sent to the bacteriology room for culture. Results All of the 250 samples were qualified, and the bacterial colonies on the surface of gloves were equal to 10 cfu/mL2 or lower. NoStaphylococcus aureus,Escherichiacoli or other pathogens were detected on the glove surface. However, after the gloves were continuously used for 15 times, the gloves of two nurses could not meet the research criteria again because of significant sweating. Conclusions In the process of continuous blood sampling, it is effective to use alcohol-based hand disinfectants to disinfect the surface of medical gloves, which can promote hand hygiene compliance to a certain extent. However, there is a certain limit on the times of usage for medical gloves.