Among the staff of Beijing Chao-Yang Hospital, Capital Medical University, who received the inactivated SARS-CoV-2 vaccine on January 30 in 2021, 28 recipients were selected for this research. Samples for nucleic acid tests were collected from the surface of the recipients′ both hands before and after vaccination. The hemostatic stickers used after the inoculation were also collected for nucleic acid tests. The nucleic acid tests of the samples collected from the surface of both hands of the 28 recipients before vaccination were all negative. After vaccination, the nucleic acid tests of the samples collected from the surface of both hands of recipients were positive in 3 cases, and suspicious in 8 cases, with a positive rate of 10.7%. A total of 25 hemostatic stickers used were collected, 24 of them had positive nucleic acid tests, and the rest one had suspicious nucleic acid test result, with a positive rate of 96%. The hemostatic stickers used after the inoculation have the risk of nucleic acid contamination.

Among the staff of Beijing Chao-Yang Hospital, Capital Medical University, who received the inactivated SARS-CoV-2 vaccine on January 30 in 2021, 28 recipients were selected for this research. Samples for nucleic acid tests were collected from the surface of the recipients′ both hands before and after vaccination. The hemostatic stickers used after the inoculation were also collected for nucleic acid tests. The nucleic acid tests of the samples collected from the surface of both hands of the 28 recipients before vaccination were all negative. After vaccination, the nucleic acid tests of the samples collected from the surface of both hands of recipients were positive in 3 cases, and suspicious in 8 cases, with a positive rate of 10.7%. A total of 25 hemostatic stickers used were collected, 24 of them had positive nucleic acid tests, and the rest one had suspicious nucleic acid test result, with a positive rate of 96%. The hemostatic stickers used after the inoculation have the risk of nucleic acid contamination.

Objective:To study the classification of persistent fifth aortic arch (PFAA) and the value of echocardiography in the diagnosis of PFAA.Methods:A total of 16 cases (male 6, female 10, at ages from 7 days to 4 years and 2 months old, the median age was 3 months) diagnosed with PFAA in Beijing Children′s Hospital Affiliated to Capital Medical University from January 2013 to June 2019 were studied retrospectively. The diagnosis standard, differential methods and misdiagnosed analysis of different subtypes of PFAA by echocardiography were summarized and analyzed.Results:The 16 cases included 1 case of type A1 double lumen aortic arch, 8 cases of type A2 single-lumen aortic arch, 3 cases of type B1 with pulmonary atresia and 4 cases of type B3 pulmonary artery branch arising from the distal end of ascending aorta. Only one patient of double lumen aortic arch missed diagnosis by echocardiography, and the rest were accurately diagnosed by echocardiography. CTA was performed in 13 cases, including 9 cases of type A, 1 case of type B1 and 3 cases of type B3, which confirmed the echocardiography diagnosis. Seven cases of Type A2 were operated.Conclusions:PFAA is a rare and complicated aortic arch malformation, which is divided into four major classification and multiple subtypes. Echocardiography can diagnose the PFAA and its classification, it is of great clinical significance for the early diagnosis, treatment and prognosis of children.

Objective The blending instructional teaching mode was used in the obstetrical resi-dent standardization training course and the effect was evaluated. Methods 36 resident physicians who attended obstetrical resident standardization training were chosen as blending instructional teaching group and traditional teaching group, 18 physicians per group. The physicians of blending instructional teaching group received blending instructional teaching mode, which included the obstetrical MOOC and Flipped Class, while the traditional teaching group only took part in the clinical management ruled by the hospital. Staging examination was performed according to the resident physician culture curriculum. Descriptive statistics, t test and chi-square test were performed by SPSS 21.0 lines. Results The average score of theory examination [(93.21±5.40) vs. (81.32±7.10)], practical skill [(89.75±4.70) vs. (68.96±8.20)] and clinical intellectual [(88.64±9.30) vs. (75.88±9.70)] in the blending instructional teaching group was significantly higher than that in the traditional teaching group (P<0.05). The physicians' satisfaction rate of manipulative ability in the blending instructional teaching group was significantly higher than that in the traditional teaching group (72.22% vs. 16.76%), which had statistical significance ( χ2=16.74, P=0.003); The physi- cians' satisfaction rate for the tutor in the blending instructional teaching group was significantly higher than that in the traditional teaching group (83.30% vs. 11.11%), which had statistical significance ( χ2=21.67, P=0.000). Conclusion The blending instructional teaching mode adapts to the development trend of teaching , and improves the effect of obstetrical resident standardization training course.

Objective To investigate the clinical significance of PRL-3 expression in sinonasal squamous cell cancer(SNSCC).Meth-ods The immunohistochemical method and RT-PCR were adopted to detect the PRL-3 protein expression level in 62 cases of SNSCC tissue (SNSCC group),30 cases of nasal polyps(NP group)tissue and 25 cases of normal nasal mucosa tissue(control group).The obtained results were compared.Results Both in the protein level and gene level detection,the expression of PRL-3 in the SNSCC group was higher than that in the NP group and control group,the difference was statistically significant (P <0.05).The expression of PRL-3 had no significant differences among different ages and between different genders(P >0.05),but with TNM stage increasing,differentiation degree decreasing and complicating lymph node metastasis,the expression of PRL-3 was significantly increased(P <0.05).Conclusion The PRL-3 expression can serve as good reference for the proliferation activity of SNSCC,its expressing intensity can obviously reflect the SNSCC cell proliferation activity,PRL-3 probably is an independent prognostic index of SNSCC,indicating poor prognosis.

Objective To detect the expression levels of adipose-specific phospholipase A2 (AdPLA) mRNA in orbital adipose tissue of thepatients with thyroid associated ophthalmopathy and the normals.Methods Sixteen patients with TAO of m level and stationary phase underwent orbital decompression,and 29 normals underwent ocular plastic surgery in Shenzhen Eye Hospital between August,2015 and October,2016.Orbital fat samples were collected from one eyes of these patients during surgery.The age,gender,height,weight,body mass index (BMI),exophthalmos degree,orbital fat of the patients with TAO and the normals were recorded and calculated.Using real time PCR,the AdPLA mRNA were detected from these orbital fat samples.Results There was no significant difference between the patients with TAO and the normals in age,gender,and BMI (all P ＞ 0.05).TAO group had more exophthalmos degree (20.406 ± 1.369)mm than the normals (14.207 ± 1.146) mm.TAO group had more orbital fat (32.162 ± 1.923) mL than the normals (24.279 ± 1.070) mL.The average expression level of AdPLA in patients with TAO was 0.039 42 ± 0.009 85,and 0.004 42 ± 0.001 36 in the normal.There was significant difference between two groups (P ＜ 0.05).Conclusion The patients with TAO of Ⅲ level and stationary phase have more exophthalmos degree and orbital fat than the normals.AdPLA mRNA is higher expressed in orbital adipose tissue of the patients with TAO of Ⅲ level and stationary phase than the normals.The high expression of AdPLA may reduce lipolysis in the orbital adipose tissue,lead to fat accumulation in orbits,and aggravate exophthalmos of patients with TAO.

Objective To investigate clinical value of high sensitive-cardiac troponin T(hs-cTnT) combined with creatine kinase isoenzyme MB(CK-MB) in the diagnosis of children with myocarditis.Methods From Nov.2014 to Nov.2015,a total of 102 cases of myocarditis,suspected with myocardial damage and without myocardial damage(pneumonia and capillary bronchitis),and 50 healthy children were enrolled.Plasma levels of hs-cTnT and CK-MB were detected and compared.Results The levels of plasma hs-cTnT and CK-MB in children with myocarditis were significantly higher than those without myocarditis and healthy subjects(P<0.05).Hs-cTnT and CK-MB levels in children with myocarditis,less than one month old,were significantly higher than those with age of 1 month to 3 years old(P<0.05).Conclusion Combined detection of hs-cTnT and CK-MB could be with high sensitive and specificity in diagnosis of children with myocarditis,accurately assess the disease condition and improve the therapeutic effect and prognosis,which might be worthy of clinical application.

Objective To study the relationship between the severity of Mycoplasma pneumoniae pneumonia(MPP) and interleukin(IL)-6,IL-10,tumor necrosis factor(TNF)-α level.Methods From Jan.to Jul.2012,according to clinical pulmonary infection score(CPIS),30 children with severe MPP(severe MPP group) and 32 children with mild MPP(mild MPP group) were enrolled,and 30 healthy children were enrolled as control group).Subjects of all groups were detected for the levels of IL-6,IL-10,TNF-α,IgA,IgM and IgG.Besides,children with MPP were also detected for the levels of IL-6,IL-10 and TNF-α after treatment.Results The levels of IL-6,IL-10 and TNF-α in bronchoalveolar lavage fluid(BALF) and serum in severe MPP group were higher than those in mild MPP group and control group(P<0.05).The levels of IL-6,IL-10 and TNF-α in BALF and serum were significantly higher in mild MPP group than those in control group(P<0.05).In all children,the levels of IL-6,IL-10 and TNF-α in BALF were higher than those in serum.After treatment,the levels of IL-6 and TNF-α in BALF in children with severe MPP were significantly decreased,while that of IL-10 were increased(P<0.05).Compared with control group,the IgM level in children with MPP was increased significantly,and the IgG level was decreased notablely(P<0.05).Conclusion There might be significant correlation between levels of cytokines IL-6,IL-10,TNF-α and the disease severity of MPP in children patients,which could be used as the basis for the clinical diagnosis and treatment.

Objective To summarize the echocardiographic findings and clinical characteristics of Kawasaki disease(KD) complicated with coronary artery thrombosis (CAT).Methods Thirty-five patients with KD combined with CAT were enrolled,who were admitted to Beijing Children's Hospital,Capital Medical University between July 2005 and August 2016.The clinical characteristics and echocardiographic findings during follow-ups were retrospectively studied.According to whether the childrenhad been complicated with myocardial ischemia,the patients were divided into 2 groups:ischemic group and non-ischemic group.The duration of fever,the time when the intravenous immunoglobulin(IVIG) was first injected,the time when coronary artery aneurysms (CAA) was formed,the maximum diameter of CAA and inflammatory index inthe acute phase were compared between 2 groups.Results All of the 35 children diagnosed as KD combined with CAT suffered firom CAA,and the coronary thrombosis was detected in all the cases with aneurysms.Thirty-five patients had 99 branches of CAA,of which the maximum diameter of CAA was (9.6 ± 3.1) mm(4.0-19.0 mm).Fifty-four plots of CAT were detected in the aneurysms.The diameter of CAA that thrombosis located was larger than that of which the thrombosis was not located[(10.9 ± 2.8) mm vs.(7.9 ± 2.6) mm],and the difference was significant(P ＜0.01).During 4 months to 10 years and 8 months [(39.2 ±29.5) months] follow-ups,CAA regressed in 32 branches [32.3％ (32/99 branches)],of which 4 branches [4.0％ (4/99 branches)] completely regressed to the normal diameter.The maximum diameter of CAA regressed was smaller than the maximum diameter of CAA consistence [(7.3 ± 1.9) mm vs.(10.6 ± 3.0) mm],and the difference was significant (P ＜ 0.01).Out of 35 patients,15 cases [42.9％ (15/35 cases) had myocardial ischemia,while the other 20 cases[57.2％ (20/35 cases)] didn't have.Among 15 cases with myocardial ischemia,6 cases[17.1％ (6/35 cases)] had myocardial infarction,4 cases [11.4％ (4/35 cases)] had heart failure,and 1 case[2.9％ (1/35 cases)] died of acute heart failure complicated with severe ventricular arrhythmia.Compared with non-ischemic group,the children in the ischemic group had longer duration of fever[(19.1 ± 7.8) d vs.(12.1 ± 3.3) d],higher white blood cell account in the acute phase[(24.8 ± 13.5) × 1012/L vs.(19.7 ±4.0) × 1012/L],later treatment of IVIG [(13.9 ± 5.5) d vs.(9.8 ±3.8) d],and earlier CAA formation [(16.0 ±4.9) d vs.(20.9 ± 14.5) d],and the differences were statistically significant (all P ＜ 0.05).Conclusions CAT of children with KD commonly originates from CAA.Patients who have more serious inflammatory reaction in the acute phase,earlier formation,heavy severity and longer consistence of CAA are prone to have myocardial ischemia.Echocardiographic study plays an important role in monitoring CAA,detecting the CAT and finding the early left ventricle dysfunction,which is of clinical significance.

Objective]Observe clinical efficacy of herpes zoster treated by the compound radix scutellariae solution wet application. [Method]50 patients were randomly divided into 25 cases of the compound radix scutellariae group and 25 cases of the nitrofurazone group, respectively given wet application of the compound radix scute-llariae solution and nitrofurazone solution, at the same time given intravenousganciclovir 0.3g/time,1 time/d, oral vitamin B1 20mg/time, 3 times/d, oral cobalt amine 0.5mg/time, 3 times/d, one week as a period. Record all patients' pain, skin lesion scores before the treatment and in the course of the third, fifth, seventh day and record the time of herpes stopping hair, blister drying up, blister beginning to scab and the scabby area not less than 50%.[Result] Pain, skin lesion scores of the compound radix scutellariae group were signifycantly lower than those of nitrofurazone group, the time of herpes stopping hair, blister drying up, blister beginning to scab and the scabby area not less than 50% of the compound radix scutellariae group compared with nitrofurazone group in advance, the difference was statistically significant(P<0.05). [Conclusion]Treatment of the compound radix scutellariae solution to herpes zoster had distinct clinical efficacy, having significant advantages in terms of alleviating pain and promoting skin lesions subsided.