Objective To explore the effect of quality control circle (QCC) in reducing the radiation dose during chest CT scan. Methods QCC was founded, activity themes were selected, activity schedule was planned, the reasons of high radiation dose was analyzed, countermeasures were planned and implemented jointly by circle members, and then per capita radiation dose and image quality before and after improving was compared to confirm the effect of QCC activities. The subjects of chest CT scan before and after improvement in our center were selected, included totally 218 cases, their average age was (47.05 ± 8.58) years, 162 were male, 56 were female, 44 cases had CT scan before improvement, 174 cases after improvement, and the data were analyzed by T-test and Chi-square test. Results The radiation dose per capita has declined from 13.75 mGy to 3.45 mGy, The rate of standard was 102.08%, progress rate was 74.91%. The rate of high-quality image was 92.52%. Compared with per capita radiation dose before and after the activities, the differences were statistically significant(P<0.001). The rate of high-quality image was 93.18% before activities, the percentage remained steady at 92.52% after the activities, there was no statistically significant differences in image quality(P>0.05). Conclusions Application of QCC not only reduced the radiation dose of the client without image quality changes, but also improved thinking and learning capacity, cooperative consciousness of the circle members.

Objective To investigate the correlation between developmental function and pathological behavior in children with autism. Methods A total of 154 children with autism were tested with Revised Chinese Version Psycho-Educational Profile (C-PEP) during 2011 to 2014. Results The scores of fine movement, hand-eye coordination, and oral language of developmental function were lower in the girls than in the boys (t>2.120, P<0.05). Among the children with autism aged 2-7 years, the developmental function was better in the older group than in the younger group (P<0.05);however, it was not better in the children aged 8-10 years and>10 years than in those aged 6-7 years. There was no difference in the scores of pathological behavior between the girls and the boys (P>0.05). Some pathological behaviors were milder in the older group than in the younger group (P<0.05). The scores ofP(pass) in developmental function were positively correlated with the scores ofA(absence) in pathological behavior (P<0.01), and negatively correlated with the scores ofS(severe) in pathological behavior (P<0.01). The scores ofF(fail) in developmental function were negatively correlated with the scores ofA(absence) in patho-logical behavior (P<0.01), and positively correlated with the scores ofS(severe) in pathological behavior (P<0.01). Conclusion Develop-mental function of children with autism is highly correlated with pathological behavior, and the rehabilitation and education of children with autism aged above 7 years should be concerned.

Objective To follow up the rehabilitation, education, and assistive devices utilization of school age children with cerebral palsy. Methods From 2012 to 2015, 80 children with cerebral palsy were called their parents with telephone and filled in the questionnaires. Results 69 children (85.25%) continued to receive rehabilitation, 11 children (13.75%) stopped rehabilitation. 42 children (56.25%) received education in ordinary schools, 15 children (18.75%) received education in special schools, 4 children (5.00%) were nursed in nursing institu-tion, 16 children (20.00%) stayed at home and did not receive any education. The main problem and needing at present were receiving reha-bilitation, receiving school education, relief the rehabilitation cost of more than one institution, etc. 61 children (76.25%) ever applied for as-sistive devices, 19 children (23.75%) did not. The feedback of application process in order were smoothly;applied, but didn't get;the assis-tive devices that received was inappropriate. 29 children (73.75%) needed assistive devices currently, 21 children (26.25%) did not. When asked the category of needed assistive devices at present, 19 parents (20%) answered that they did not know the category of assistive devices well or they did not know which kind of assistive devices they needed. Conclusion It is important to provide quality and quantity rehabilita-tion and education service, popularize the knowledge of assistive devices and their clinical application for cerebral palsy children. Assistive devices providing departments should do more communication with cerebral palsy children and their parents, in order to reduce the waste of resources, and increase the rational use of resources, and provide more benefits for children with disabilities.

Objective To explore the application of PBL in dermatology and venereology teaching. Method According to random principle, 120 students were divided into experimental group and control group (60 students per group). The experimental group received PBL, and the control group received tradi-tional teaching. The teaching contents included systemic lupus erythematosus, pemphigus, psoriasis, syphilis. The course needed 16 periods totally . the traditional teaching group applied 8 classes extensive class teaching and 8 classes clinical trainee, and the PBL teaching group implemented case-based teaching 4 hours each time. Teaching satisfaction evaluation and test scores would be analyzed at the end of the semester. SPSS 17.0 was used for t test. Results The teaching satisfaction (contains professional values and ethics, communication skills, clinical skills, community health and health systems, information management, critical mind and research, etc.) of experimental group was higher than control group (P<0.05); The test scores of experimental group was higher than control group (P<0.05), especially in total score of theoretical examina-tion, comprehension and application. The difference mainly came from PBL teaching (P<0.05). Conclusion PBL is conductive not only to the comprehension and application of knowledge but to training the students' abilities of independent learning.

OBJECTIVE:To reduce the error rate of homing the withdrawn drugs in pharmacy intravenous admixture service (PIVAS). METHODS:Using risk priority(RPN),the potential failure modes for links of homing the withdrawn drugs in PIVAS were evaluated by using failure mode and effects analysis (FMEA) method. Combining with the links of homing the withdrawn drugs,the reasons for errors were investigated,the feasible scheme to reduce error rates was proposed and the intervention effect was evaluated after 3 months. RESULTS:In the PIVAS links of homing the withdrawn drugs,8 high-risk failure modes had been found in total,such as poor double check system(RPN was 100),unfamiliarity of seemingly drugs(RPN was 36),a large num-ber of the withdrawn drugs(RPN was 20),etc. Thus,risk control measures had been formulated,including reinforcing the double check system,optimizing the management system of PIVAS and so on. After 3 months of intervention management,RPN of the first 3 items were reduced to 20,16,8;error rate of homing the withdrawn drugs was reduced from 1.98% to 0.62%(P<0.05). CONCLUSIONS:The application of FMEA management method in PIVAS of our hospital has reduced the error rate of homing the withdrawn drugs.

ObjectiveTo study the outcome of 3 kinds of disabled children. Methods269 disabled children found in 2004 Beijing Disabled Children Sampling, which including 237 children with mental retarded disability, 57 with physical disability and 26 with psychological disability, were followed up in 2007. Results52.32% of mental disabled children, 8.77% of physical disabled, and 15.38% of psychological disabled children would not be seen as "disability" any longer. ConclusionThe disability before 6 years old is a kind of developmental disability, which may be recovery as development.

BACKGROUNDLow molecular weight heparin (LMWH), as one of anticoagulant drugs, has been used for the treatment of chronic obstructive pulmonary disease (COPD) with prethrombotic state, but the specific use time is unclear. The aim of the study is to observe the effect of LMWH at two different periods of prethrombotic state in COPD in rats and to find the optimal time to use LMWH.

METHODSForty Wistar rats were randomly divided into 4 groups: normal control, raised for 55 days without any treatment; COPD control without LMWH, cigarette inhalation plus intratracheal instillation of lipopolysaccharide and hypodermic injection of normal saline once a day for 10 days; COPD control given LMWH 150 U/kg subcutaneous injection, once a day for 10 days starting day 15 (LMWH-d15); COPD control given LMWH 150 U/kg subcutaneous injection, once a day for 10 days starting day 29 (LMWH-d29).

RESULTSComparing LMWH-d15 with LMWH-d29, plasma viscosity, whole blood viscosity, von Willebrand factor, serum fibrinogen, plasminogen activator inhibitor-1 and fibrin D-dimer were each significantly reduced; but thrombin plasminogen activator increased significantly whilst arterial PO2 and PCO2 improved significantly.

CONCLUSIONThe better time to use LMWH is the time when coagulation and fibrinolytic indices begin to change in COPD.

Animals ; Anticoagulants ; therapeutic use ; Heparin, Low-Molecular-Weight ; therapeutic use ; Male ; Pulmonary Disease, Chronic Obstructive ; drug therapy ; Random Allocation ; Rats ; Rats, Wistar ; Time Factors

OBJECTIVES: Idiopathic intracranial hypertension (IIH) is a syndrome that excludes secondary causes such as intracranial space-occupying lesion, hydrocephalus, cerebrovascular disease, and hypoxic ischemic encephalopathy. If not be treated promptly and effectively, IIH can cause severe, permanent vision disability and intractable, disabling headache. This study aims to explore the clinical and image features for IIH, to help clinicians to understand this disease, increase the diagnose rate, and improve the outcomes of patients. METHODS: We retrospectively analyzed 15 cases of IIH that were admitted to Xiangya Hospital, Central South University, during January 2015 to September 2020. The diagnosis of IIH was based on the updated modified Dandy criteria. We analyzed clinical data of patients and did statistical analysis, including age, gender, height, weight, medical history, physical examination, auxiliary examination, treatment and outcome. RESULTS: There were 10 females and 5 males. Female patients were 22 to 42 years old with median age of 39.5. Male patients were 27 to 52 years old with the median age of 44.0. The BMI was 24.14-34.17 (28.71±2.97) kg/m CONCLUSIONS IIH primarily affects women of childbearing age who are overweight. The major hazard of IIH is the severe and permanent visual loss. Typical image signs have high specificity in IIH diagnosis. Prompt diagnosis and effective treatment are significantly important to improve the outcomes of patients.
Adult ; Anemia, Iron-Deficiency ; Female ; Humans ; Intracranial Hypertension ; Male ; Middle Aged ; Pseudotumor Cerebri/diagnostic imaging* ; Retrospective Studies ; Ventriculoperitoneal Shunt ; Young Adult

PD-1 and PD-L1 antibodies have brought about extraordinary clinical benefits for cancer patients, and their indications are expanding incessantly. Currently, most PD-1/PD-L1 agents are administered intravenously, which may be uncomfortable for some cancer patients. Herein, we develop a novel oral-delivered small molecular, YPD-29B, which specifically targets human PD-L1. Our data suggested that YPD-29B could potently and selectively block the interaction between PD-L1 and PD-1, but did not inhibit any other immune checkpoints. Mechanistically, YPD-29B induced human PD-L1 dimerization and internalization, which subsequently activated T lymphocytes and therefore overcomes immunity tolerance in vitro. YDP-29B was modified as the YPD-30 prodrug to improve druggability. Using humanized mice with human PD-1 xenografts of human PD-L1 knock-in mouse MC38 cancer cells, we demonstrated that YPD-30 exhibited significant antitumor activity and was well tolerated in vivo. Taken together, our results indicate that YPD-30 serves as a promising therapeutic candidate for anti-human PD-L1 cancer immunotherapy.

[This corrects the article DOI: 10.1016/j.apsb.2022.02.031.].