Benzene ; adverse effects ; Hearing ; Humans ; Noise, Occupational ; adverse effects

Objective To investigate the distribution of blood pressure and incidence of hypertension in children and adolescents from the urban area of Guiyang city aged 8-17 years old,in order to provide scientific evidence for preventing hypertension.Methods Seven thousand nine hundred and sixty-three primary and secondary students were sampled and standardized in blood pressure,height and weight.In accordance with the Working Group on Obesity in China(WGOC)recommendations,the subjects were divided into overweight,obesity and normal weight group,then the relationship between blood pressure and body mass index(BMI)and the prevalence of hypertension in different BMI groups were analyzed.Results 1.Compared with the USA and Shanghai city,the distribution of blood pressure in children and adolescents from the urban area of Guiyang city were different(Pa

Objective To analyze stenting and dual catheter technique in protection of posterior inferior cerebellar artery and its imaging and clinical follow-up results in the endovascular treatment of vertebral artery dissecting aneurysms. Methods From January 2012 to December 2014,the clinical data of 4 patients with vertebral artery dissecting aneurysm involving posterior inferior cerebellar artery treated with endovascular method and admitted to the Department of Neurosurgery,Xuanwu Hospital,Capital Medical University were enrolled retrospectively. The whole brain DSA examinations were performed at 6 months after procedure. The clinical follow-up period ranged from 12 to 24 months. Results Three of the 4 patients were treated with posterior inferior cerebellar artery-vertebral artery stenting,one patient was treated by using bidirectional dual catheter technique to protect posterior inferior cerebellar artery. The interventional therapy of 4 patients were all successful. Immediately after procedure,angiography revealed that the posterior inferior cerebellar arteries were patent,no ischemic symptoms were observed. The angiography at 6 months after procedure revealed no recurrence of aneurysms;the posterior inferior cerebellar arteries were patent without in-stent stenosis. No new symptoms of neurological deficit were observed during 12 to 24-month follow-up. Conclusion In the interventional treatment of vertebral artery dissecting aneurysms of posterior inferior cerebellar artery,using the posterior inferior cerebellar artery-vertebral artery stenting technique and bidirectional dual catheter technique may safely and effectively protect the posterior inferior cerebellar artery.

Objective To study the significance of antikeratin antibodies(AKA) in rheumatoid arthritis(RA). Method Serum samples of 98 patients with RA and 70 rheumatic disease controls were tested by indirect immunofluorescence assay.The diagnostic specificity and sensitivity of AKA were compared with rheumatoid factor(RF). The features of clinical manifestation and lab findings were compared in patients with RA who were positive for AKA with ones who were negative.Results The positive rate of AKA in RA patients was significantly higher than that in rheumatic disease controls.AKA showed a diagnostic specificity of 97.1%, higher than RF.RA patients who were positive for AKA had more active disease as assessed based on clinical, laboratory tests,and radiological variables, as compared with AKA negative patients. Conclusion AKA showes high disease specificity and has prognostic significance in patients with RA.

Adult ; Female ; Hemangioma, Cavernous ; surgery ; Humans ; Nose ; surgery ; Orbit ; surgery ; Orbital Neoplasms ; surgery

Objective To investigate the prevalence of serum Anti-sperm antibodies(AsAb) in group of prepubertal boys with cryptor-chidism before and after surgery,and explore whether it may be influenced by testicular location,orchiopexy,unilateral or bilateral cryptorchi-dism and deferens and(or) epididymis abnormality.Methods Serum AsAb was examined in 50 prepubertal boys with cryptorchidism and 50 boys with oblique inguinal hernia before and 6 months after surgery.Fifty boys who were normal were served as controls.IgG and IgM AsAb were determined by the immunodotting method.Results The preoperative and post-orchiopexy serum AsAb positive rates in cryptorchid boys were significantly higher than the preoperative and post-high ligation of hernial sac ones respectively in boys with oblique inguinal hernia(Pa0.05).Conclusion Cryptorchidism may induce an autoimmune response against sperm antigen in prepuberty independent of testicular location,orchiopexy,unilateral or bilateral cryptorchidism and deferens and(or) epididymis abnormality.

Neuromyelitis optica (NMO) is a rare disorder in children with variable presentation. We report a 7-year-old boy who presented with bilateral retrobulbar optic neuritis and responded very well to treatment. He was also positive for aquaporin 4 (AQP4) antibodies, which is part of an emerging endophenotype within autoimmune neurological disorders in childhood.
Neuromyelitis Optica

Objective To evaluate the effect of ultrasound-guided interscalene brachial plexus block and nerve stimulator on operation around shoulder joints. Methods Sixty cases of patients scheduled for operation around shouler joints were randomly divided into group A and B , with 30 cases in each group. Patients in group A underwent interscalend brachial plexus block guided by nerve stimulator with 0.5% ropivacaine and those in group B interscalend brachial plexus block guided by ultrasound and nerve stimulator with 0.5% ropivacaine 30 mL. The number of puncture, the effect of anesthesia and complication of anesthesia in both groups were recorded. Results The number of puncture of group B was less than that of group A (P﹤0.05) while the effect of anesthesia and the duration of anesthesia of group B were similar to those of group A (P﹥0.05). There was no serious complications in two groups. Conclusion With definite anesthesia effect and less pain , ultrasound-guided interscalene brachial plexus block and nerve stimulator is simple and safe for operation around shouler joints.