Objective To investigate the effects of group teaching in rehabilitation nursing. Methods 55 nursing students were dividedinto control group and experiment group. The control group received traditional teaching and the experiment group received group teaching.Questionnaire and examination performance were used to evaluate the effects of group teaching in the teaching of rehabilitation nursing. ResultsThe scores were significantly higher in the experiment group than in the control group (P<0.01). The questionnaire showed that groupteaching can stimulate their interest and intrinsic motivation for learning, enhance their understanding and application of knowledge, cultivatetheir self-learning ability, analysis and problem-solving abilities, interpersonal communication skills and spirit of collaboration. At thesame time, the implementation of group teaching helps both teaching and learning. Conclusion Group teaching can improve the teaching effectivenessof rehabilitation nursing.

ObjectiveTo study the effect of pre-arrest and post-arrest mild hypothermia after restoration of spontaneous circulation (ROSC) on myocardial function, ultrastructure, apoptosis of myocardial cells in rabbits with ventricular fibrillation.Methods Sixty-two male New Zealand rabbits were randomly allocated into five groups: namely normothermic control group (NTC group,n = 10), hypothermia control group (HTC group,n = 10), normothermic resuscitation group (NTR group,n = 14), hypothermia pre-arrest group (HPRA group,n = 14), and hypothermia post-arrest group (HPOA group,n = 14). The normal temperature was controlled at (39.0±0.5)℃, and the hypothermia (33.5±0.5)℃. Ventricular fibrillation cardiac arrest (CA) was reproduced in rabbits by transcutaneous epicardium electrical stimulation. The parameters of hemodynamics were monitored dynamically for 4 hours in all the groups, including heart rate (HR), left ventricular end diastolic and systolic pressure (LVEDP/LVESP), maximal rate of increase/decrease in left ventricular pressure (±dp/dt max), and mean arterial pressure (MAP). The body temperature of rabbits in hypothermia groups was maintained by surface cooling for 4 hours followed by rewarming. The survived rabbits were sacrificed at 48 hours after resuscitation, and myocardial apical tissue was harvested for observation of ultrastructure with electronic microscope, and to observe apoptosis by terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining.Results① Resuscitation investigation: there was no significant difference in rate of ROSC, time of CPR and energy of defibrillation among HPRA, HPOA, and NTR groups [rate of ROSC: 85.71%, 71.43%, 71.43%; time of CPR (seconds): 45.3±30.2, 61.2±41.3, 82.3±63.8;energy of defibrillation (J): 14.3±8.9, 22.0±15.5, 25.0±15.8, allP> 0.05].② Hemodynamics: compared with normal temperature groups, animals in hypothermia groups exhibited lower levels of HR (allP< 0.05). Compared with NTR group, HPRA group exhibited higher levels of LVESP (mmHg, 1 mmHg = 0.133 kPa) at 0.5, 1, 2 and 3 hours post ROSC (0.5 hour: 103.8±14.3 vs. 91.6±13.3, 1 hour: 107.2±14.1 vs. 82.7±8.5, 2 hours: 109.0±16.9 vs. 88.8±12.9, 3 hours: 109.1±14.6 vs. 89.3±14.3, allP< 0.05). Compared with NTR group and HPOA group, HPRA group exhibited lower levels of LVEDP (mmHg) at 0.5 hour post ROSC (3.70±0.85 vs. 7.61±2.73, 7.02±3.12, both P< 0.05). Compared with NTR group, HPRA group exhibited lower levels of LVEDP at 1 hour post ROSC (4.34±1.44 vs. 6.99±1.96,P< 0.05). In HPRA group, the level of+dp/dt max (mmHg/s) was higher than that of NTR group and HPOA group at 1 hour and 2 hours post ROSC (1 hour: 2 759.5±321.6 vs. 2 123.0±304.5, 2 283.7±234.2, 2 hours:2 730.6±425.1 vs. 2 221.5±392.9, 2 252.6±476.0, allP< 0.05). There were no significant differences in -dp/dt max and MAP levels among three CPR groups.③ The survival rate at 48 hours post ROSC of NTR, HPRA and HPOA groups was 60%, 75%, and 100%, respectively. Compared with NTR group, higher survival rate was found in HPOA group at 48 hour post ROSC (P< 0.05).④ Compared with NTR group, less damage to myocardial ultrastructure was found in HPRA and HPOA groups. Apoptosis index (AI) was lower in HPRA and HPOA groups than that in NTR group [(28.05±9.82) %, (26.39±8.98) % vs. (42.02±13.36) %, bothP< 0.05].Conclusions Our study shows that mild hypothermia has no effect on ROSC rate. Pre-arrest hypothermia can ameliorate myocardial systolic function of rabbit in early stage after ROSC, and it has no negative influence on diastolic function. Post-arrest mild hypothermia produces no negative influence on myocardial function of rabbit, but it improves 48 hours survival rate in ROSC rabbits. Both pre-arrest and post-arrest mild hypothermia therapy can attenuate myocardial injury in CA model of rabbits by ameliorating mitochondrial injuries and suppressing apoptosis of myocardial cells.

It analyzed the definition, mechanism, characteristics of Mirror Visual Feedback and summarized the application of mirror visual feedback in recovering upper limb function after stroke patients at home and abroad, so as to provide evidences for the further research in China.

Purpose: The aim of this study was to assess carotid stiffening in a pre-hypertensive (PHT) population using ultrafast pulse wave velocity (ufPWV). Methods: This study retrospectively enrolled 626 individuals who underwent clinical interviews, serum tests, and assessments of the systolic blood pressure (SBP), diastolic blood pressure (DBP), carotid intima-media thickness (cIMT), pulse wave velocity-beginning of systole (PWV-BS), and pulse wave velocity-end of systole (PWV-ES) between January 2017 and December 2021. The patients were divided into three groups according to their blood pressure (BP)—normal BP (NBP): SBP <130 mmHg and DBP <80 mmHg (n=215); PHT: 130 mmHg≤SBP<140 mmHg and/or 80 mmHg≤DBP<90 mmHg (n=119); hypertensive (HT): SBP ≥140 mmHg and/or DBP ≥90 mmHg (n=292). Correlation analyses and comparisons were performed among the groups and in the cIMT subgroups (cIMT ≥0.050 cm and <0.050 cm). Results: cIMT and PWV-ES significantly differed among the BP groups (P<0.05). The BP groups had similar PWV-BS when cIMT <0.050 cm or cIMT ≥0.050 cm (all P>0.05). However, the NBP group had a notably lower PWV-ES than the PHT (P<0.001 and P=0.024) and HT (all P<0.001) groups in both cIMT categories, while the PWV-ES in the PHT group were not significantly lower than in the HT group (all P>0.05). Conclusion Carotid morphological and biomechanical properties in the PHT group differed from those in the NBP group. ufPWV could be used for an early evaluation of carotid stiffening linked to pre-hypertension.

Objective To investigate the nutritional status of vitamin D (Vit D) in newborns in Xi'an, and to provide a theoretical basis for timely and targeted formulation of regional and individualized Vit D nutrition intervention strategies. Methods A cross sectional survey was performed in newborns within 24 hours life age at the neonatal department of China Xidian Group Hospital. Serum 25-hydroxyvitamin D (25(OH)D) levels were detected and compared for the mean among groups in accordance with gestational age, birth weight and gender. Multiple linear regression analysis was used to analyze the effect of each factor on serum 25 (OH) D levels. A P-value of P <0.05 was considered significant. Results A total of 582 newborns were recruited in this study. The average serum 25 (OH) D level within 24 hours after birth was 11.2±3.2ng/ml, which was a deficiency. The overall prevalence of Vit D level abnormality (insufficiency + deficiency + severe deficiency) was 96.70% (563/582 cases). The gestational age and birth weight had a significant effect on Vit D levels (β=2.94, P<0.001 and β=7.71, P<0.001, respectively), while the gender had no effect (β=-0.003, P>0.05). Conclusion Vit D nutritional deficiency existed in some newborns in Xi'an. Measures need to be taken to improve the status of newborn Vit D deficiency.

Chinese National Standards GBZ 98-2020 Health Requirements and Surveillance Specifications for Radiation Worker was published and will replace the current standards GBZ 98-2017 Health Requirements for Radiation Workers and GBZ 235-2011 Specifications for Occupational Health Surveillance for Radiation Workers from May 1 in 2021. The significance of this new National Standards, the background, basic principles, basis of revision of important indicators and the matters needing attention in the application of the standard are described in detail, especially for the medical institutions carrying out occupational health examination requirements, the determination of occupational health examination items, examination method and examination reports, so as to avoid the possible misunderstandings and doubts in using the standards.

ObjectiveTo explore the effect of mindfulness-based childbirth on pregnant women's anxiety and depression， and to provide references for related psychological intervention. MethodsA total of 80 pregnant women who attended the obstetrics department of the Third People's Hospital of Mianyang from October 2018 to March 2019 and met the diagnostic criteria of mild to moderate anxiety and depression in the Diagnostic and Statistical Manual of Mental Disorders， fifth edition （DSM-5） were selected， and they were divided into two groups by random number table method， each with 40 cases. Both groups received regular mental health education. On this basis， experimental group received mindfulness-based childbirth training for 8 times， once a week. Meantime， all pregnant women were assessed using Patient Health Questionnaire-9 item （PHQ-9） and Generalized Anxiety Disorder Scale （GAD-7） at the baseline and after intervention. ResultsAt the baseline and after intervention， the scores of PHQ-9 ［（6.95±1.40） vs. （2.10±1.34）， P<0.05］ and GAD-7 ［（7.23±1.29） vs. （2.08±1.51）， P<0.05］ in the experimental group had statistical significance， and the scores of PHQ-9 ［（7.00±1.43） vs. （3.65±1.35）， P<0.05］ and GAD-7 ［（7.18±1.57） vs. （3.38±1.66）， P<0.05］ in the control group had statistical significance. Moreover， the post-intervention scores of PHQ-9 and GAD-7 were significantly lower in experimental group than in control group （t=5.161， 3.666， P<0.01）. ConclusionCompared with mental health education alone， its combination with mindfulness-based childbirth achieves better effect in alleviating the anxiety and depression status of pregnant women.