Ultrasonographic diagnosis and prognosis of transposition of the great arteries at 11-13 + 6 weeks gestation / 中华超声影像学杂志

Objective:To investigate the value of ultrasonography in diagnosis of transposition of great arteries of the fetus at 11-13 + 6 weeks gestation. Methods:A prospective study was conducted on fetuses screened by ultrasound in the first trimester in Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region between January 2015 and March 2022. Fetal heart structure was screened by three-section screening method. Fetuses with suspected transposition of the great arteries at 11-13 + 6 weeks gestation underwent followed-up ultrasound examination, chromosome and gene test results. The ultrasound characteristics and prognosis pregnancy outcomes were summarized. Results:Twenty-one cases of transposition of the great arteries were detected by ultrasonography, including complete transposition of great arteries (20 cases) and congenitaly corrected transposition of the great arteries (1 case). Two cases were miss diagnosed. Twenty-one cases showed parallel signs of two major arteries on grayscale outflow section at 11-13 + 6 weeks gestation. There were 6 cases with aneuploid ultrasonographic soft markers abnormality, 2 cases with extracardiac malformation. Chromosome and microarray analysis were performed in 13 cases. 4 cases with chromosomal abnormality. Four cases of chromosomal abnormalities were associated with ultrasonographic soft markers abnormality, and 1 case with extracardiac malformation.In the 23 cases, 20 cases were induced, 1 miscarried, and 2 delivered to term. Among the fetuses delivered at term, 1 case died before neonatal operation and 1 case survived. Conclusions:Standardized ultrasound scan at 11-13 + 6 weeks has high accuracy in diagnosis of transposition of the great arteries. And the incidence of chromosomal abnormality is high with ultrasonographic soft markers abnormality or extracardiac malformation.

Preparation of an online teaching readiness scale for higher education teachers / 中华医学教育探索杂志

This study summarizes related studies on readiness for online teaching in China and globally and constructs an online teaching readiness scale for higher education teachers with reference to related studies on online teaching competency, blended teaching readiness, and influencing factors for online teaching. This scale includes five dimensions, i.e., belief, teaching readiness, technical readiness, online communication readiness, and institutional support. A questionnaire survey and statistical analyses were performed to investigate the rationality of the scale, and then the scale was modified. The results show that the indicators of the scale have a good degree of fitting, and this study provides a necessary standard for examining the online teaching readiness of higher education teachers and new ideas for online teaching in colleges and universities.

Survey on use demands of wise classroom for medical students based on learning experience / 中华医学教育探索杂志

The objectives of the paper is to more accurate understand the use demands of wise classrooms for medical students, and provide scientific basis for wise classroom managers when formulating wise classroom environment optimization strategies. In the paper, the questionnaire survey method was used to investigate 23 indicators in 4 dimensions of hardware facilities, information technology, teaching methods and medical wise classroom features. And the data of 1 074 questionnaires were analyzed using KANO model analysis technology and satisfaction importance quadrant chart. Among the 23 demand indicators, there are 6 required attributes, 7 expected attributes, 9 charm attributes and 1 non-differential attribute. According to the theoretical importance ranking of the KANO model, wise classroom managers should first improve the quality of indicators related to necessary attributes, give priority to the quality of indicators related to expected attributes, and finally meet the requirements of indicators related to charm attributes. Relevant policies and construction suggestions for smart classrooms are put forward from the three levels of school top-level design, teachers and managers in the paper.

Research on the quality certification standard of medical MOOC in universities / 中华医学教育探索杂志

The medical massive open online course (MOOC) quality certification standard is the reference for the implementation of medical MOOC quality monitoring. This thesis utilizes data mining, quantitative analysis, qualitative analysis and other methods, taking the comment text of the Chinese medicine courses on the Ai Course (MOOC of China Universities) platform as the data source out of which to extract certain potential indicators for the medical MOOC quality certification standard. Based on the analysis of the existing research results on MOOC quality evaluation domestic and abroad as well as the relevant policies of the Ministry of Education, a medical MOOC quality accreditation standard including 6 first-level indicators are formed, including course content, teaching design and so on. Expert scores and AHP method were used to calculate the weight coefficient of the quality certification standard. Finally, this paper explains the procedure of medical MOOC quality certification in college. This certification system can be used to conduct self-assessment and quality monitoring of medical MOOC in colleges and universities.

Value of atrioventricular valve regurgitation in screening for atrioventricular septal defect in the first trimester / 中华超声影像学杂志

Objective:To investigate the value of atrioventricular valve regurgitation in predicting atrioventricular septal defect (AVSD) in the first trimester.Methods:Fetuses were examined prospectively by ultrasound at 11-13 + 6 weeks in Maternity & Child Healthcare Hospital of Guangxi Zhuang Autonomous Region between February 2016 and February 2021. Congenital heart disease was screened and atrioventricular valve regurgitation was observed in fetuses of gestational age 11 to 13 + 6 weeks using color Doppler in four-chamber view and three vessels and trachea view. Results:Totally 43 549 fetuses of gestational age 11 to 13 + 6 weeks were screened by echocardiography, of whom 37 cases were screened out with AVSD, including complete atrioventricular septal defect (31 cases), partial atrioventricular septal defect(3 cases) and intermediate atrioventricular septal defect(1 cases), 2 cases were misdiagnosed, and ultrasonic scanning in the second trimester found 2 missed cases of intermediate atrioventricular septal defect. Atrioventricular valve regurgitation was observed in 91.89% of atrioventricular septal defects (34/37) in the first trimester, 59.46% (22/37) nuchal translucency greater than 95th percentile, 29.73% (11/37) absence of nasal bone, 32.43% (12/37) ductus venosus A wave inversion, and 40.54% (15/37) had tricuspid regurgitation. The sensitivity of common atrioventricular valve regurgitation in predicting atrioventricular septal defect is better than other ultrasonic indexes. Conclusions:Atrioventricular regurgitation can be used as a clue to predict atrioventricular septal defect in the first trimester, which is beneficial to detect atrioventricular septal defect in the first trimester.

Association of non-suicidal self-injury with Internet addictive behavior among adolescents / 中国学校卫生

Objective@#To explore the relationship between non-suicidal self-injury and Internet addictive behavior in adolescents.@*Methods@#A cross-sectional survey of 15 538 middle school students across 5 provinces in China. Participants reported self- injury behavior during the past year and the Internet addition behaviors were assessed through Young’s Internet Addiction Test(IAT).@*Results@#The prevalence of self-reported 1-year NSSI, Internet addictive behavior and pre-addictive behaviors was 28.7%, 3.3% and 29.9%, respectively. After controlling for potential confounders, the Internet addition was positively correlated with NSSI, and the risk of all types of NSSI was higher in adolescent with Internet addition than those with mild suspected Internet addictive behavior(OR=1.3-2.8).@*Conclusion@#These findings indicate that Internet addition is associated with the incidence of NSSI in adolescents.