ObjectiveTo compare the difference of X ray projection volume and operative time when using two different positioning methods in percutaneous kyphoplasty to treat elderly osteoporotic vertebral compression fracture(OVCF) patients.MethodsSixty-eight(75 vertebraes) patients who underwent percutaneous kyphoplasty were divided into two groups,34 cases(39 vertebraes) underwent self-made fluoremeter (group A) comparing with the other 34 patients (36 vertebraes ) without using locator (group B).X ray projection volume,operation time and recovery of exterior edge height were compared.ResultsDuring locating the puncture point,the X ray projection volume in group A [( 196.92 ± 10.93)mA·s]was significantly less than that in group B [(826.67 ± 25.89 ) mA·s](P ＜ 0.05 ).The operation time in group A[(30.82 ±0.56) min]was significantly less than that in group B [(56.08 ±0.93) min](P＜ 0.05).The recovery of exterior edge height at 3 months after operation had no significant difference between two groups [(2.47 ± 0.18 ) mm vs.(2.09 ± 0.21 ) mm](P ＞ 0.05 ).ConclusionsThe self-made fluoremeter can save operation time and reduce the X ray projection volume.It is an effective way to treat OVCF patients undergoing percutaneous kyphoplasty.

Objective To explore the expression of and its clinical significance of plasma omentin-1 in coronary heart disease in central obesity. Methods Plasma omentin-1 levels were measured by enzyme linked immunosorbent assay( ELISA)in 49 central obesity participants without coronary heart disease and 67 central obesity participants with coronary heart disease,as well as 56 normal healthy individuals as control group. In addition,glucose and lipid metabolism parameter and morphological characters were assessed. Finally multivariate logistic regression analysis was used to explore the risk fact for coronary heart disease in central obesity. Results The serum plasma omentin-1 level of central obesity participants without coronary heart disease group was (45. 63 ± 9. 66)μg/L,much higher than those of people in and central obesity participants with coronary group ((30. 67 ± 6. 78 )μg/L,P ﹤0. 01 ),while lower than control group(( 53. 12 ± 7. 97 )μg/L,P ﹤ 0. 01 ) . Multivariate logistic regression analysis revealed that,age was independent risk factor of coronary heart disease in central obesity(OR=1. 176,95%CI:1. 012-1. 330,P=0. 041),while plasma omentin-1 and high density lipoprotein cholesterol were independent protective factors(OR=0. 576,95%CI:0. 254-0. 898,P=0. 000;OR=0. 466,95%CI:0. 242 -0. 690,P =000). Conclusion Detection of plasma omentin-1 level may play an important role in early diagnosis and prevention of coronary heart disease in central obesity.

Objective To study the protein fingerprinting of carbapenems resistant and susceptible Acinetobacter baumannii (Ab) strains ,investigate the clinical value of affinity distance in carbapenems resistant strains .Methods A total of 22 carbapenems resistant Ab strains and 18 carbapenems susceptible Ab strains were collected ,and bacterial protein fingerprinting was detected by surface-enhanced laser desorption ionization time of flight mass spectrometry (SELDI-TOF-MS) ,differentially expressed proteins was analyzed by Biomarker Wizard 3 .1 .Cluster analysis of differential expressed proteins was conducted on SPSS 19 .0 .Results The protein expression pattern of carbapenems resistant and sensitive Ab strains had significant difference (P< 0 .05) .Cluster anal-ysis showed carbapenems resistance Ab was given priority to with type A ,followed by type B .Conclusion The results of cluster a-nalysis carbapenems resistance of Ab protein fingerprinting could determine the distance of affinity relationship of Ab .It could pro-vide a theoretical basis for the infection and clinical epidemiology of Ab .

Objective To investigate the efficacy of microsurgery treatment with small craniotomy lateral fissure approach for hyperten-sive basal ganglia intracranial hemorrhage. Methods From December 2013 to February 2015, 30 patients with hypertensive basal ganglia intracranial hemorrhage ( blood loss within 30~60 mL) were analyzed respectively. Summarized the methods and techniques of this microsur-gery treatment and analyzed its advantages and disadvantages compared with the traditional operation. Results The hematomas were excluded more than 90% which were proved by reexamination after opreation. There was one case of temporal lobe infarction,but there was no re-bleed case and death case. The recovery of consciousness is good, and the limb function and language function were improved by early rehabilitation treatment. Conclusion Microsurgery treatment with small craniotomy lateral fissure approach for hypertensive basal ganglia intracerebral hemorrhage has the advantages of minimal invasion,complete hematoma removal and low complication and disability rates, which is worthy of promotion and application.

Objective To study the drug resistance of multiple‐drug‐resistant Acinetobacter baumannii(MDR‐Ab) and its rela‐tive carbapenemases genes ,in order to provide references for rational use of antibacterial agents .Methods A total of 98 strains of Acinetobacter baumannii(Ab) were identified by using the MicroScan WalkAway96 automated microbial identification susceptibility testing system ,and the resistance genes ,including OXA‐23 ,OXA‐24 ,IMP ,VIM ,TEM and SHV ,were detected by using the poly‐merase chain reaction .DNA sequences of positive amplification products of the resistance gene were analysed .Results The drug re‐sistance rates of 98 strains of MDR‐Ab to penicillin class and cephalosporin class both were 100 .0% ,to imipenem and meropenem were 55 .1% and 54 .1% respectively ,to gentamicin ,amikacin and tobramycin were 100 .0% ,100 .0% and 87 .8% respectively ,to ciprofloxacin ,levofloxacin and gatifloxacin were 89 .8% ,91 .8% and 77 .6% respectively ,to sulfamethoxazole and rifampicin were 91 .8% and 100 .0% respectively ,to polymyxin B and polymyxin were 14 .3% and 11 .2% respectively ,to tetracycline ,minocycline and tigecycline were 100 .0% ,6 .1% and 4 .1% respectively .The results of resistance genes detection in 98 strains of MDR‐Ab showed that 70 strains carried TEM and OXA‐23 gene ,53 strains carried VIM gene ,41 strains carried IMP gene ,while OXA‐24 and SHV genes were not detected .DNA sequence analysis showed that the homology of OXA‐23 ,TEM ,IMP and VIM genes were 98% ,98% ,99% and 99% .Conclusion The condition of antibacterial resistance of MDR‐Ab in this area is very serious ,and TEM and OXA‐23 are the main drug resistance genes .Carrying multiple resistance genes is an important cause of MDR‐Ab resistance . The treatment of patients with Ab infection should be based on the results of drug sensitivity test for rational use of antibacterial a‐gents .

Objective The drug resistance and risk factors of methicillin resistant Staphylococcus aureus (MRSA) infected in the pediatric ward of the hospital were analyzed to provide a scientific basis for the con-trol of MRSA paediatric infection .Methods Totally 306 strains of Staphylococcus aureus were isolated from the pediatric wards in the Affiliated Hospital of Southwest Medical University from July 2015 to June 2016 , the bacterial species identification and drug susceptibility tests were performed by MicroScan WalkAway 96SI and the statistical analysis was carried out by WHONET 5 .4 softwate .The clinical data of 306 children were infected with staphylococcus aureus collected by retrospective survey ,the risk factors of MRSA infection were analyzed by the method of χ2 test and non-condition Logistic regression .Results A total of 90 strains of M R-SA were detected ,with a detection rate of 29 .41％ .MRSA was mainly isolated from sputum ,accounting for 74 .44％ ,followed by blood ,accounting for 10 .0％ .MRSA was mainly resistant to amikacin ,ampicillin ,eryth-romycin ,clindamycin and other antimicrobial agents (P< 0 .05) .Age< 1 years ,venous catheterization ,me-chanical ventilation ,tracheal intubation ,ventilator ,stay in ICU ,hospitalization time >7 d ,use of corticoste-roids ,low albumin ,and antibiotic use time >7 d were the main risk factors of MRSA in children (P<0 .05) . Admission to NICU ,venous catheterization ,mechanical ventilation and tracheal intubation were independent risk factors .Conclusion MRSA isolated from pediatric wards is resistant to many kinds of antibiotics .Infec-tion with MRSA is related to many factors .Hospitals should take corresponding measures to reduce the inci-dence of M RSA infection .

Artificial intelligence (AI), a branch of computer science, is an emerging science used to develop theories, methods, technologies and application systems that can simulate human intelligence. The goal is to enable machines to solve some complex tasks that require human intelligence. With the era of big data coming, AI has been widely used in multitudinous professional fields, including machine vision, speech recognition, image understanding, genetic programming, intelligent factory and expert systems. As the most common three-dimensional deformity of the spine, scoliosis not only changes patients' appearance and body shape but also affects their mental health. Some challenges have to be solved in diagnosis and treatment of scoliosis, such as the complexity of the anatomical structure of the spine, the importance of maintaining the posture, and the long learning-curve of spine specialty. Additionally, some aspects, such as heavy workload, fatigue, high misdiagnosis rate and missed diagnosis rate, are prone to occur in large-scale scoliosis screening and diagnosis. Researchers have discovered that AI can learn inherent laws and representation of sample data in recent years. AI technology has been used in clinical practice, such as screening, diagnosis, surgical decision-making, intraoperative operation, prognosis prediction and conservative interventions. However, AI technology has serious limitations currently. There are many disadvantages in diagnosis and treatment of scoliosis, including irregular data collection, technical difficulty, inherent defects of AI, overdependency on AI, legal and ethics issues. Thus, summarizing the relevant trends and application of AI in the diagnosis and treatment of scoliosis is still required by using the literature database and data-sharing network. The aim of the present review is to provide a glimpse into the future applications of AI.

Multisystem inflammatory syndrome in children is a disease related with severe acute respiratory syndrome corona-virus 2 infection,which can involve multiple system damage.Most cases included features of shock,cardiac dysfunction,gastrointestinal symptoms,significantly elevated markers of inflammation and cardiac damage,and positive test results for SARS-CoV-2 by serology.Although its clinical features overlap with Kawasaki disease,it is more likely to occur in older children and adolescents,and most of them need to be treated with intensive care and a variety of immunomodulators.At present,the pathogenesis and long-term prognosis of the disease need to be further studied.

Scoliosis is characterized by one or several segments of the spine bending sideways, accompanied by vertebral rotation and sagittal imbalance with complex etiology. Scoliosis can be caused by congenital vertebral abnormalities, asymmetry of the paraspinal muscles due to neurological lesions, and malnutrition or metabolic disorders of bone tissue. Growth hormone is a peptide hormone that plays a key role in promoting human growth and development, especially in bone growth. When the secretion of growth hormone in children or adolescents in the rapid growth stage is insufficient, it may lead to the occurrence of idiopathic short stature (ISS) and growth hormone deficiency (GHD). In clinic, ISS and GHD are mainly treated by recombinant human growth hormone (rhGH). According to some early clinical reports, in the process of rhGH treatment, many patients occur scoliosis or the original scoliosis progression is aggravated. Therefore, many scholars conclude that rhGH treatment of ISS or GHD will lead to the occurrence or development of scoliosis. However, with the increase of clinical statistics and the further progress of research, many scholars found that rhGH treatment of ISS or GHD will only increase the Cobb angle of patients with scoliosis, but will not lead to the occurrence of scoliosis, that is, rhGH treatment of ISS or GHD will not increase the prevalence of scoliosis. At present, whether rhGH treatment of ISS and GHD can lead to scoliosis and aggravation of scoliosis remains controversial. Therefore, this paper summarizes and analyzes the correlation research on the risk of scoliosis complications in children treated with rhGH, and concludes that age, gender, body mass index, and growth potential are risk factors for the development or progression of scoliosis during treatment, and discusses the balance of advantages and disadvantages of using rhGH for ISS or GHD to provide a direction for future clinical guidance.

Objective:To investigate the whole genome of SARS-CoV-2 causing COVID-19 in Rongcheng city of Shandong Province in May 2022 and to further analyze the nucleotide and amino acid variations for source tracing.Methods:High-throughput sequencing was used to sequence the SARS-CoV-2 genome in 15 nasopharyngeal swab samples from COVID-19 cluster infections and three environmental samples related to an aquatic product import company. Whole-genome sequence splicing, variant site analysis and sequence typing were performed on the raw sequencing data using virus sequence and variant analysis software. A phylogenetic tree was constructed by evolutionary analysis software. Epidemiological investigation was used to trace the potential source of infection.Results:Thirteen whole genome sequences of SARS-CoV-2 with the length ranging from 29 653 bp to 29 780 bp were successfully obtained from the nasopharyngeal swab samples. The average sequencing depth was 1 756-6 565 X and the genome coverage was 99.20%-99.63%. The results of Pangolin typing showed that the 13 genomes belonged to the VOC/Gamma (P.1.15) evolutionary branch. Compared with the Wuhan reference strain (NC_045512.2), the 13 genome sequences had 40-41 nucleotide mutation sites. There were 23-24 amino acid variation sites in seven protein domains (ORF1a, ORF1b, S, ORF3a, ORF8, ORF9b and N proteins). Evolutionary analysis showed that the viral sequence was grouped to the same subclade as the reference strain from Argentina (EPI_ISL_4082233).Conclusions:In this study, the whole genome sequences of 13 Gamma variant strains were obtained from COVID-19 cluster infections associated with imported cold-chain aquatic products in Rongcheng city, and the imported seafood from South America in 2021 was found to be the source of the virus in a timely manner. This study provided reference for the SARS-CoV-2 variant analysis and case tracing and also suggested that the survival and transmission ability of SARS-CoV-2 on the surface of cold-chain products should not be underestimated and needed further investigation.