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Objective To investigate the anxious psychology and cognition of COVID-19 prevention and control in college students during home isolation.Methods The convenience sampling method was used to conduct a questionnaire survey by using the "questionnaire Star", the self-rating Anxiety Scale (SAS) was used to assess the anxiety status, and the self-designed questions were used to evaluate the scores of COVID- 19 prevention and control knowledge.Results The SAS standard score in the college students averaged (39.07±7.16) points, which was higher than (29.78±0.46) point in the adult norm, and the difference was statistically significant (P <0.05).By demarcating with the standard score 50 points, 7.8% of the college students showed the anxiety symptoms.The change of sleep time, perceived poor health status and graduation grade were their risk factors.The prevention and control knowledge in the medical students was (7.92±1.43) points in average, which in the non-medical students was (7.46±1.42) points, which in the grade 1 students were (7.37±1.55) points, which in the grade 2-4 students were (7.77±1.39) points, and which in the grade 5 students were (8.42±1.34) points, and the differences were statistically significant (P <0.001).The multiple linear regression showed that the prevention and control knowledge score of the college students was negatively correlation with the anxiety psychology standard scores (b=-0.96, t=-5.177, P <0.001).Conclusion The factors of sleep time change, perceived poor health and graduation grade are the risk factors of anxiety symptoms in the college students.The college students have a good score on the knowledge of prevention and control of this epidemic, and the higher the score of knowledge of prevention and control, the lower the standard score of anxiety [ABSTRACT FROM AUTHOR]

目的通过分析成人心脏瓣膜病患者体外循环瓣膜置换术后出现肺部感染与体外循环时间、手术时间 的相关性，从而提出预防和减少由此所致肺部感染的相关措施。方法对该院心血管外科2015 年2 月至2018 年5 月 的448 例体外循环下行瓣膜置换手术的成人心脏瓣膜病患者术后出现肺部感染情况进行回顾性分析。结果448 例患 者中，69 例术后出现肺部感染，感染率为15.40%，其中肺部感染发生率与体外循环时间呈正相关（P<0.05），而与手术时 间无显著相关性（P>0.05）。结论体外循环时间是术后肺部感染独立危险因素，缩短体外循环时间可有助于减少术后 肺部感染风险。 [ABSTRACT FROM AUTHOR]

目的 探讨可拆卸固定装置联合系统康复训练治疗老年 Mason Ⅱa 型桡骨头骨折的疗效。方法 通过回顾性分 析 2015 年 2 月至 2018 年1月应用可拆卸固定装置联合系统康复训练治疗的 Mason Ⅱa 型桡骨头骨折 36 例老年患者资料, 术后 随访影像学检查, 并行 Mayo 肘关节功能标准评分。结果 36 例均获随访, 随访时间 6~24 个月,平均 (12.0±4.2) 个月, 骨折愈 合时间6~12周,平均 (8.6±2.1) 周。术后末次随访 Mayo 肘关节功能评分评定, 优 12 例, 良 20 例,可 4 例, 优良率为 88.9%。 结论 对于老年 Mason Ⅱa 型桡骨头骨折, 采取可拆卸固定装置联合系统康复训练治疗取得了很好的临床疗效, 同时避免了手术 的相关风险, 值得临床推广应用。 [ABSTRACT FROM AUTHOR]