Objective To assess the clinical features and treatment of children with long QT syndrome (LQTS)and syncope.Methods Eleven cases of children with LQTS and syncope between January 2009 and July 2014 in Hunan Children′s Hospital were retrospectively analyzed for clinical features,treatment and long term follow -up.Results There were 11 cases of children with LQTS aged 4.0 -14.5(9.16 ±2.71)years,8 male and 3 female, with syncope more than once.The range of QTc was 460 -521(483.72 ±22.90)ms.For 3 cases of acquired LQTS,1 case was parathyroid hypothyroidism causing hypocalcemia,1 case was myocarditis complicated with third degree atrio-ventricular block,and 1 case showed atrial flutter receiving amiodarone post congenital cardiac surgery.All patients re-covered after the inducement removed and primary illness cured.For 8 cases of congenital LQTS,3 cases of LQTS un-derwent genetic test (1 case of KCNQ1 gene mutation,2 cases of KCNH2 gene mutation).One case died after frequent torsade de pointes (Tdp)and ventricular fibrillation during hospitalization,the remaining 7 patients were given oral pro-pranolol,potassium chloride sustained -release tablets after discharge.Follow -up time was 8 to 75 months,an average of (45.73 ±24.42)months.One case died suddenly at home after 25 months of follow -up.The remaining 6 cases of children with congenital LQTS could withstand general activities without syncope,in which 4 cases had normal QTc by electrocardiography(ECG),and the findings in 2 cases did not change compared with those previously.The QTc re-turned to normal in children with acquired LQTS in the follow -up review.Conclusions Children with congenital LQTS should receive early genetic screening and genotyping for rational use of drugs.For children with higher risk of sudden death,drug therapy combined with implantable cardioverter defibrillator should be considered.For acquired LQTS,it should be better to remove the inducement and treat primary disease actively.

Objective To evaluate CT findings of urinary obstruction caused by ureteral diseases.Methods CT findings in 157 cases with ureteral disease, proven surgically and pathologically were retrospectively reviewed.Results 27 cases of ureteral neoplasms, 12 casesof ureteritis, 10 of ureteral tuberculosis, 90 of ureteral stones, 3 of ureteral polyps, 3 of retroperitonium fibrosis and 12 cases ofretroperitonium or pelvic neoplasms involving ureter were included. Conclusion Spiral CT is of high accuracy in determining the natures and localizations of ureteral diseases.

Objective:To localize the impacted maxillary canine and to observe the root resorption of adjacent incisor in 3 dimen-sions using cone beam computed tomography(CBCT).Methods:92 impacted maxillary canines in 63 patients were scanned by CBCT.The three-dimensional images were obtained by multiplanar reconstructions(MPR).The cusp tip of each impacted canine was localized and set to the X,Y and Z planes after the observation of sagittal,coronal and axial views.The root resorption of adjacent in-cisors was observed.Results:In the X-axis,92% of impactions were mesial by 1 0.4 to 1 5.1 mm,8% distal by 2 to 5 mm;in the Z-axis,60% of impactions were palatal by 1 to 4 mm,40% buccal by 0 to 4 mm.41 .3% of the impacted canines were without root resorption of adjacent incisor,36.5% with slight,1 4.3% with moderate and 7.9% with severe root resorption of the adjacent inci-sor.Conclusion:The most frequent location of impacted maxillary canine is palatal and mesial with high incidence of root resorption of adjacent incisor.

OBJECTIVE:To analysis the distribution and antibiotic resistance of common isolated pathogenic bacteria in urinary-tract infection cases in our hospital so as to provide scientific basis for the rational clinical use of antibacterials.MET-HODS:625 urine samples were collected from urinary-tract infection cases in our hospital in 2006,from which,344 strains of bacteria were isolated,which were cultured and subjected to drug sensitivity test.RESULTS:Of the 344 strains of bacteria,Gram-negative bacilli took the lead,accounting for 60.2% of the total,followed by Gram-positive cocci(33.4%) and fungi(6.4%).The detection rates of ESBLs-producing Escherichia coli.and Klebsiella pneumoniae were 49.2% and 27.3%,respectively.The bacteria had different resistant rate to different antibiotics and were multidrug resistant.CONCLUSION:Bacterial culture of urine and drug-sensitivity test should be performed promptly and drugs should be used with prudence for urinary infection cases to reduce drug-resistance bacteria.

This study introduced the development, qualification requirements, training contents and methods, practice authority and field, practice management and safety of specialist nurses' multi-sitepractice, elaborated the development status of multi-site practice of nurses in foreign countries, summarized international experience, combined with the national conditions, explored the development mode of multi-point practice of specialist nurses in China, with a view to providing domestic specialized nurses with multi-site practice. It also provides suggestions for managers to formulate relevant policies and develop localized multi-site practice.

Objective To explore the relationship among job satisfaction,work engagement and organizational citizenship behavior (OCB) of nurses.MethodsA total of 497 nurses in 5 tertiary level general hospitals in Zhengzhou selected by convenience sampling,were investigated by Minnesota satisfaction questionnaire,nurses' OCB scale and the Utrecht Work Engagement Scale.ResultsThe scores of job satisfaction,work engagement,OCB were (78.63±11.34),(38.31±7.78),(106.33±10.26) respectively.Nurses' job satisfaction was positively correlated with work engagement and OCB(r=0.529,0.481,P<0.01),and work engagement was positively correlated with OCB(r=0.456,P<0.01).The job satisfaction and work engagement had a positive prediction effect on OCB(changed R2=34.8%),and work engagement played a partial moderation effect between job satisfaction and OCB,the mediating effect accounted for 30.77% of the total effect.ConclusionManagers should take measures to improve job satisfaction and work engagement to promote OCB of nurses.

Objective To investigate the efficiency of autologous transplantation of bone-marrow mononuclear cells for treatment of patients with diabetic lower limb ischemia. Methods Twenty patients of type 2 diabetes (22 legs) with diabetic lower limb ischemia were treated by autologous transplantation of bone-marrow mononuclear cells. Results All ischemic legs were preserved except three feet, which were amputated due to the previously existed foot gangrene in one and unsolved pain in two. The pain-alleviated rate was 85.0%. The amputation rate was 13.6%. The skin turned warm in all legs(100.0%). TcPO2 of the ischemic legs was elevated in 17 patients with 19 legs. Angiography showed a noticeable increase of visible collateral vessels in 7 patients with 8 limbs who had angiographic follow-up. Conclusion Autologous transplantation of bone-marrow mononuclear cells could be a simple, safe, and effective method to treat patients with diabetic lower limb ischemia.

Objective To investigate the effect and safety of autologons bone margow-mononuclear cell (BM-MNC)transplantation after the bone marrow stimulation in patients with thromboangiitis obliterans (TAO).Methods The bone marrows of 12 patients were stimulated by an injection of the recombinant human granuloeyte-macmphage colony-stimulatory factor(GCSF)for 3-5 days.150-200 ml bone marrow was drown from the iliac spine and the autologous BM-MNC were obtained in each patients.Fifteen lower limbs of 12 patients received implantation of the autologous BM-MNC by an intramuscular iniecdon.A series of subjective indexes(including improvement of pain and cold sensation)and objeetive indexes [including increase of ankle braehial index(ABI),transcutaneons oxygen pressure(TcPO2)and improvement of foot skin ulcer] were used to evaluate the effects.Results The outcomes were evaluated after 2 months of transplantation.The pain-relief rate and the cold feeling improvement rate were 86.7%(13/15)and 93.3%(14/15)respectively.The ABI were 0.38 ±0.05 vs.0.61 ±0.14(P<0.05)before transplantation and 2 months after transplantation respectively.increased in 66.7%(10/15)limbs.The TcPO2 of the ischemic legs increased from(27.47±2.85)mm Hg to(43.53 ±8.38)mm Hg(t=-7.03,P<0.05)after the transplantation,and the improvement rate of TcPO2 was 93.3%(14/15).Skin ulcers in improved in 8/9 limbs.Twelve patients were followed up for all average period of 10 months.The patients'symptoms improved in 80.0%(12/15)limbs,as to the objective index the ABI was0.57±0.13,TcPO2 was(42.07 ±7.81)mm Hg,which improved significandy compared to before treatment(t=-5.33,-7.80,Ps<0.05).skin ulcer healing rate was 66.7%(6/9).The ischemic symptoms in 2 patients were not relieved.There WBS no mortality and high level amputation in all subjects.The complications,such as proliferative retinopathy,malitpmnt tumor,myocardial infarction,stroke or hemangioma were not found in any patients.Conclusion In patients with TAO,intramuscular transplantation of autologous BM-MNC after the bone marrow stimulation has advantages of less bone marrow aspiration,more mononuclear cell content and relatively high safety.It may be a new and effective method to alleviate symptoms and accelerate the healing of skin ulcer.

Objective:To explore the relationship between dysphagia and the lesion site after an ischemic stroke.Methods:The records of 178 cerebral infarction patients were divided into a supratentorial group of 111 and an infratentorial group of 67, according to the site of their lesions. The supratentorial group was further divided into left, right and bilateral groups of 59, 34 and 18, respectively. Fluoroscopic videos of the patients′ swallowing were used to measure lip closure, bolus formation, apraxia, tongue-to-palate contact, premature bolus loss, oral transit time, triggering of pharyngeal swallowing, vallecular residue, larynx elevation, pyriform sinus residue, pharynx wall coating, pharynx transit time, aspiration, and leakage.Results:There were significant differences between the supratentorial and infratentorial groups in bolus formation, apraxia, oral transit time, triggering of pharyngeal swallowing, larynx elevation, and aspiration. Moreover, significant differences were found in the incidence of aspiration among the left, right and bilateral supratentorial groups.Conclusions:Patients with supratentorial infarction are more likely than those with infratentorial infarction to develop oral dysphagia, including poor bolus formation, apraxia and prolonged oral transit time. Those with infratentorial infarction are more likely to have pharyngeal dysphagia, including poor triggering of pharyngeal swallowing, obstructed larynx elevation, and aspiration. Those with bilateral cerebral hemisphere infarction are more likely to aspirate than those with an infarct in the left cerebral hemisphere.

Objective: To explore the relationship between cyberbullying and depression in college students, and to provide a scientific basis for the prevention of cyberbullying. Methods: A total of 3 914 college students from 6 universities in Shanxi Province were selected as research objects. The students’ cyberbullying behavior scale and depression self-rating scale were used to investigate the students. Results: The overall reported rate of cyberbullying among college students was 17.4%. Boys who suffered from online verbal bullying and online fraud scored higher than girls. Students whose parents divorced scored higher than those whose parents did not divorce in all dimensions of cyber-bullying. There was a statistically significant difference in the overall scores of students with different degrees of education and time spent online( P <0.05). Depression was reported in 15.6% of participants. The depression scores of female students were higher than that of male students.College students whose parents were divorced had higher depression scores than those whose parents were not divorced.There were statistically significant differences in depression scores among college students with different fathers’ education levels and different time spent online every day( t / F =2.05, 6.64, 3.91 , 19.52, P <0.05). Pearson correlation analysis showed that online speech bullying, online fraud and identity concealment bullying were positively correlated with depression scores( r s =0.40, 0.36, 0.46, P <0.01). Multiple linear regression analysis showed that three forms of cyberbullying were risk factors for the increase of depression in college students( β =0.89, 0.38, 0.38, P <0.01). Conclusion Cyber-bullying is one of the risk factors for increasing the severity of depression among college students.Strengthening the management of Internet use, promotion college students’ interpersonal conununication and active cooperating between society, school and family are great significance to reduce the occurrence of cyberbullying.