Objective To discuss the matching method of irregular device for radiological equipment. Method Related experiences were summed up. Result A set of interventional protective device matching DSA was developed through tripartite corporation. Conclusion The matching method is beneficial to equipment management.

Objective To investigate the difference of two models of respiratory failure in preterm infants with nasal continuous positive airway pressure(nCPAP)and nasal biphasic positive airway pressure (nBiPAP).Methods Comparative analysis of 81cases of premature infants with respiratory failure requi-ring respiratory support was needed.They were applied nCPAP and nBiPAP ventilation mode treatment.The use of breathing machine and total oxygen inhalation time,the number of treatment failures,the PEEP param-eters of the ventilator,the total number of recent complications and secondary infections were compared.Re-sults In the nBiPAP treatment group,the average time of noninvasive ventilation was(96.34±31.5)h,the total time of oxygen inhalation was(10.11 ±9.39)d,3cases of treatment failure,the incidence of severe complications was 5.56%(2/36),PEEP (4.08±0.73)cmH2O (1cmH2O =0.098kPa ).In the nCPAP group,the average time of noninvasive ventilation was(114.14±41.69)h,the total time of oxygen inhalation was(17.53±15.96)d,15cases were failed,the incidence of severe complications was 15.56%(7/45), PEEP(5.11±1.01)cmH2O.There were significant differences between the two groups(P﹤0.05).But there were no significant differences in infection control and patent ductus arteriosus (P ﹥0.05).Conclusion nBiPAP as one of the first choice treatment for premature infants with respiratory failure significantly better than nCPAP,as soon as the proper use can avoid invasive ventilation.

Objective:To investigate the correlation between the high-resolution magnetic resonance imaging (MRI) vessel wall characteristics and risk of ischemic stroke in patients with middle cerebral artery (MCA) atherosclerotic stenosis.Methods:Patients with ischemic cerebrovascular disease treated in the Department of Neurology, Nanjing First Hospital, Nanjing Medical University from January 2016 to January 2020 were enrolled prospectively. The patients presented with transient ischemic attack or acute ischemic stroke (AIS). Magnetic resonance angiography showed that the ipsilateral MCA had stenosis of 50%-99%, and it was identified as the responsible lesion. Routine MRI and the vessel wall imaging at the narrowest part of MCA were performed. The characteristics of vessels and plaques at MCA stenosis were compared between the AIS group and the non-AIS group. Multivariate logistic regression analysis was used to determine the independent risk factors for AIS. Receiver operating characteristic (ROC) curve was used to determine the predictive value of vessel wall characteristics for AIS. Results:A total of 65 patients with ischemic cerebrovascular disease and MCA stenosis were enrolled. The age of patients was 68±14 years, 50 were males (76.9%). There were 30 patients (46.2%) in the AIS group and 35 (53.8%) in the non-AIS group. There were no significant differences in demographic data, vascular risk factors and routine laboratory tests between the two groups. Compared with the non-AIS group, the narrowest lumen area in the AIS group (2.36±1.09 mm 2vs. 2.96±1.01 mm 2; t=2.274, P=0.027) was smaller, the plaque area (4.46 ±2.08 mm 2vs. 2.62±1.32 mm 2; t=4.315, P<0.001) was larger, the remodeling index (1.08±0.11 vs. 0.94±0.10; t=5.573, P<0.001) was higher, and the proportion of obvious enhanced plaque (63.3% vs. 11.4%; χ2=19.034, P<0.001) and positive remodeling plaque (80.0% vs. 20.0%; χ2=23.311, P<0.001) were higher. Multivariate logistic regression analysis showed that plaque area (odds ratio [ OR] 2.01, 95% confidence interval[ CI] 1.35-2.98; P=0.001), remodeling pattern ( OR 16.00, 95% CI 4.73-54.15; P=0.001), the narrowest lumen area ( OR 0.568, 95% CI 0.34-0.96; P=0.033) and degree of enhancement ( OR 21.85, 95% CI 5.13-93.00; P<0.001) were the independent risk factors for AIS. ROC curve analysis showed that the combination of plaque area, the narrowest lumen area and the degree of enhancement had the best prediction effect (area under the curve 0.927, 95% CI 0.84-0.96). Conclusion:AIS is more likely to occur when the plaque area at the narrowest part of the MCA is larger, the lumen area is smaller, and there is obvious plaque enhancement.

Objective:To explore the categories and influencing factors of family caregivers′benefit finding in patients with esophageal cancer based on latent profile analysis.Methods:From May 2020 to February 2021, 255 primary family caregivers of patients with esophageal cancer in the First People′s Hospital of Changzhou and Affiliated Hospital of Jiangnan University were selected for the study using a cross-sectional survey method. Surveys were conducted by the General Information Questionnaire, the Benefit finding Scale, the Hospital Anxiety and Depression Scale, and the Event Related Rumination Inventory.Results:The benefit finding among family caregivers of patients with esophageal cancer was divided into 2 latent profile classifications, low benefit rumination group 33.3% (85/255) and high growth adaptation group 66.7% (170/255), and the results of binary Logistic regression analysis showed that caregivers with high school education or above ( OR=0.053, P<0.05) and higher deliberate rumination scores ( OR=0.778, P<0.01) had a higher degree of benefit finding; caregivers with higher intrusive rumination scores ( OR=1.163, P<0.05) and higher anxiety ( OR=1.323, P<0.01) and depression scores ( OR=1.128, P<0.05) had a lower benefit finding. Conclusions:There is heterogeneity in the caregiver′s benefit finding of patients with esophageal cancer. Health professionals and nursing staff should develop targeted psychological support and interventions to improve the caregiver ′s benefit finding according to the different sub-types of caregivers.