Objective To evaluate the clinical effects of percutaneous kyphoplasty ( PKP ) for osteoporosis vertebral compression fractures . Methods From January 2011 to June 2013, 65 patients underwent PKP .The evaluation was based on the visual analogue scale (VAS), vertebral height, and Cobb’s angle recorded at 3 days and 6 moths postoperatively.The duration of follow-up after operation was 6-12 months. Results The PKP operation was successfully completed in all the 65 cases.The VAS reduced from 6.62 ±0.63 before operation to 3.22 ±1.20 at 3 days (P =0.000) and 2.12 ±1.15 (P =0.000) at 6 months postoperatively.The vertebral height was increased from (15.26 ±1.19) mm before operation to (18.14 ±1.29) mm at 3 days (P=0.000) and (17.65 ±1.37) mm (P=0.000) at 6 months postoperatively.The Cobb’s angle was decreased from 16.25°±2.66° before operation to 6.34°±1.68°at 3 days (P=0.000) and 7.13°±1.82°(P=0.000) at 6 months postoperatively. Conclusion Percutaneous kyphoplasty can relieve pain and improve the functions .

[Objective] To evaluate the clinical efficacy of treatment of humeral shaft fracture with revolving intramedullary nails.[Method]Sixty-two cases with fracture of hume ral shaft were treated by revolving intramedullary nails between January 2000 and February 2006.Their were 38 male cases and 24 female cases.Their average age was 36.9(ranged 20～58).Fifty-fous cases were closed fractures,and eight cases were opened.Sixty-two cases with fracture of humeral shaft according to AO classification,41 cases were type A,15 cases were type B,6 cases were type C.Sixty-two patients with the humeral shaft fracture were treated with limited open reduction and minimally invasive internal fixation with revolving intramedullary nails.Scientific and rational rehabilitative treatment was carried out in each case after the operation.All patients were follow-up between 14 months and 30 months.The average follow-up period was 24 months.[Result]The fracture union occurred in sixty-two patients.The average healing time was 15 weeks.According to Rodriquez-Merchang shoulder functional score system,the excellent result was achieved in 36 patients,good in 20 and fair in 6.The excellent and good rate was 90.3%.All cases got good function recovery.The effects were satisfactory.There were no complications in all cases,such as infection,iatrogenic fracture,shortening,break of nail,fat embolism syndrome and peripheral nerve injury.[Conclusion]Revolving intramedullary nails for treatment of humeral shaft fracture is effective with litter interference with the blood supply of the bone fracture and with stable immobilization.Due to the abutment of the longitudinal bars along the entire length of the medullary canal wall,highly resistant to the rotational strength was achieved.The advances of revolving intramedullary nails are convenient in operative procedure with little invasive of operation,early function exercise,high raito of fracture healing and safety compared with the normal operative therapy.The operation indication and timing should be controlled strictly.The manipulation should be familiar.This kind of treatment is worth to be recommended.

Objective To study the reproductive health status in adolescents underwent repeated abortion and their psychosocial behavioral status and to understand their demanding on the knowledge of contraception, so as to provide suggestions on post abortion care. Methods From July ,2007 to May,2008,400 unmarried adolescents who visited doctors and met the following criteria were recruited in the study:①Younger than 24 years old;②Had artificial abortion at least once;③Have been pregnant for 5-10 weeks and asked for artificial abortion. Data were collected through symptom checklist 90 (SCL-90)and anonymous reproductive health questionnaire. The situation of reproductive tract infections (RTIs) were detected through gynecological examination and laboratory tests.The data was analyzed by SPSS 11.5 statistical software. Results The mean age of the subjects was 21. 18 ±2. 46 years. The mean time of previous artificial abortion was 1.96 ± 1.44,with 52% of ≥2 times. Aged less than 20 years old at the first abortion,having sex more than 3 times per week,more than 2 sex partners,and history of painless abortion were associated with repeated abortion in unmarried adolescents. The SCL-90 scores showed that the subjects had higher score of depression, terror, psychiatric symptoms, somatization, interpersonal sensitivity,anxiety and hostility factors than normal population (P < 0. 05). Of the subjects ,34. 5% had history of RTIs, and the current prevalence of RTI was 59. 5% ,and 58. 5% with one kind of RTI and 36. 0% with two kinds of RTI. Of these RTI patients,33. 5% did not present any clinical symptoms. Abortion for more than twice,first sex intercourse occurred at age younger than 18,history of RTI,sex intercourse of more than 3 time per week,multiple sex partners,especially18,history of RTI,sex intercourse of more than 3 time per week,multiple sex partners,especiallyhaving multi sex partner at the same, and poor sex sanitation were risk factors of RTI. Conclusions There are various reproductive health problems among repeated abortion adolescents in mental and physical aspects, lack of knowledge on reproductive health and contraception is the main reason. Improving post-abortion services will be helpful to prevent repeated abortion in adolescents and protect their physical and mental health.

Objective To investigate deficient inhibitory control in individuals with IAD using a visual go/no-go task by ERPs. Methods 26 individuals met YDQ criteria for IAD were enrolled as research group and marched sexual and age 26 healthy person enrolled as control group. BIS-11 was used for measures of impulsivity.A go/no-go task involved eight different two-digit numerical stimuli. The response window was 1000 ms and the ITIwas 1500 ms. EEG was recorded during participants performed the task. BESA 5.2.0 was used to perform data analysis and the no-go N2 amplitude was analyzed for investigation of inhibitory control. Results BIS-11 total scores, attentional key scores and motor key in IAD group were higher than that of control group. In the go/no-go task, false alarm rate of IAD group was higher and hit rate was lower than that of control group. A repeated measure ANOVA revealed a significant group, frontal electrode sites and group × frontal electrode sites main effect for N2amplitudes of no-go conditions ( for group: F= 3953, df= 1, P= 0.000;for frontal electrode sites: F= 541, df= 9, P= 0.000;for group × frontal electrode sites: F = 306, df = 9, P = 0. 000 ), and a significant group, central electrode sites and group × central electrode sites main effect for N2 amplitudes of no-go conditions ( for group: F=9074, df= 1, P = 0. 000;for central electrode sites: F = 163, df= 2, P = 0.000;for group × central electrode sites: F = 73, df= 2, P = 0.000). N2 amplitudes of no-go conditions were lower than those at control group. Conclusions Individuals with IAD were more impulsive than controls and shared neuropsychological and ERPs characteristics of compulsive-impulsive spectrum disorder, which supports that IAD is an impulse disorder or at leastrelated to impulse control disorder.

Objective: To study the clinical therapeutic characteristics of myasthenia gravis (MG) with hyperthyroidism and the effects of surgical procedures for the patients. Methods:Subtotal thyroidectomy,thymectomy,and simultaneous subtotal thyroidectomy and thymectomywere performed on eleven patients with MG and hyperthyroidism. These patients were followedup after the operation. Results :The neck incisions were infected in two of seven type Ⅱ b patientsdue to trachestomy and the infected incisions were surgically healed. The MG symptoms of threecases (1 cases in type Ⅱ. and 2 cases in type Ⅱ b) relapsed in 3 to 6 months after subtotal thy-roidectomy. The MG symptoms of 2 cases (1 case in type Ⅱa and 1 case in type Ⅱ b) relapsed in 8to 12 months after thymectomy. Among six patients treated by simultaneous subtotal thyroidecto-my and thymectomy,the MG symptoms relapsed in a type I case 3 months after the operation,remitted in three case (1 case in type Ⅱ, and 2 cases in type Ⅱb) and improved in two type Ⅱ bcases since the operations. Conclusion:The simultaneous subtotal thymectomy and thyroidectomyfor patients with MG and hyperthyroidism might have better effects,although infective opportuni-ty of the neck incisions increased owing to trachestomy. However,the prognostic effects were notvery satisfactory whether simple subtotal thyroidectomy or thymectomy for the patients with MGand hyperthyroidism was performed.

Objective To investigate the prognostic value of maximum diameter in axial plane of primary tumor (MDAPPT) on MRI in nasopharyngeal carcinoma (NPC).Methods From 2005 to 2007,333 patients with newly diagnosed and biopsy-proven NPC without distant metastasis,who underwent MRI scans of the nasopharynx and neck,were included in our study.MDAPPT was measured on MRI.The univariate analysis with the log-rank test and multivariate analysis with the Cox proportional hazards model were used to analyze the relationship between MDAPPT and prognosis.Results The median values of MDAPPT in patients with T1,T2,T3,and T4 NPC were 21.2,30.0,38.0,and 52.3 mm,respectively.For all patients with a MDAPPT of ≤30 mm,＞ 30-50 mm,and ＞ 50 mm,the 5-year overall survival (OS) rates were 81.3％,70.1％,and 51.5％,respectively (P =0.000) ; the 5-year progression-free survival (PFS) rates were 81.3％,70.0％,and 48.9％,respectively (P =0.000) ;the 5-year distant metastasisfree survival (DMFS) rates were 85.5 ％,86.5 ％,and 67.2 ％,respectively (P =0.000) ; the 5-year local relapse-free survival (LRFS) rates were 97.7％,91.5％,and 83.3％,respectively (P =0.013).The multivariate analysis showed that MDAPPT was a prognostic factor for PFS and DMFS.For the T3-T4 patients with a MDAPPT of ≤50 mm and ＞50 mm,the 5-year OS rates were 69.4％ and 52.2％ (P =0.004),the 5-year PFS rates were 68.0％ and 49.6％ (P =0.001),and the 5-year DMFS rates were 84.0％ and 66.8％ (P=0.001).In the patients with a MDAPPT ≤30 mm,the 5-year LRFS rates for those with T1,T2,T3,and T4 NPC were 10 0 ％,9 5.8 ％,9 6.3 ％,and 10 0 ％,respectively (P =0.6 4 3).Conclusions MDAPPT is a prognostic factor for PFS and DMFS in NPC,and it is an important prognostic factor in patients with T3-T4 NPC.In the NPC patients with a small MDAPPT,local control rate varies little in different T stages.

Objective:To study the causes that resulted in delayed surgery for bronchial ruptures and the results.Methods:The cases with the bronchial ruptures by the delayed surgery last decade were retrospectively reviewed.The causes and unsatisfactory results were analysed.Results:The severe complications usually occurred after the delayed surgery and the results were not as satisfactory as those by early surgery.Conclusion:The bronchial ruptures ought to be operated in the early stage after being wounded.

Objective To evaluate the prognostic impact of MRI-detected prevertebral space involvement in nasopharyngeal carcinoma (NPC) treated with radiotherapy and chemotherapy.Methods A retrospective analysis was performed on the clinical data of 333 patients who had newly diagnosed biopsyproven NPC without distant metastasis from 2005 to 2007.All patients underwent MRI scans of the nasopharynx and neck and were treated with two-and three-dimensional radiotherapy without or without chemotherapy.The Kaplan-Meier method was used to calculate overall survival (OS),distant metastasis-free survival (DMFS),and locoregional relapse-free survival (LRFS),and the log-rank test was used for survival difference analysis;the Cox proportional hazards regression analysis was used to assess the prognostic value of prevertebral space involvement.Results The follow-up rate was 95.2％.Prevertebral space involvement was seen in 139(41.7％) of these patients.The patients with prevertebral space involvement had significantly higher T stage and clinical stage than those without prevertebral space involvement (x2 =90.41,P =0.000;x2 =54.03,P =0.000).The 5-year OS,DMFS,and LRFS for NPC patients with and without prevertebral space involvement were 58.8％ vs.77.5％ (x2 =11.95,P =0.000),77.8％ vs.85.0％(x2=2.56,P=0.110),and 88.3％ vs.91.8％ (x2=1.51,P=0.220),respectively.After adjusting for N stage,a significant difference was still seen between the two groups with regard to 5-year OS (x2 =9.93,P =0.002).The multivariate analysis showed that prevertebral space involvement was not the independent prognostic factor for OS,DMFS,and LRFS (x2 =0.43,P =0.512 ; x2 =0.08,P =0.783 ; x2 =0.00,P =0.971).Conclusions The frequency of prevertebral space involvement is very high in NPC.The OS for the patients with prevertebral space involvement is significantly lower than those without prevertebral space involvement.But prevertebral space involvement is not the independent prognostic factor in NPC patients.

Objective To explore the influence of high flux hemodialysis (HFHD) and hemodialysis filtration (HDF) on the dialysis effect and patients mortality in the patients with end-stage renal disease(ESRD).Methods One hundred and twenty-two patients with ESRD in our hospitals were selected and respectively adopted HFHD (HFHD group,62 cases) and HDF (HDF group,60 cases) for conducting the dialysis therapy.The serum indexes before and after treatment were detected and compared between the two groups.Results Compared with before treatment,the level of blood urea nitrogen (BUN),blood uric acid (BUA),serum creatinine (Scr),blood phosphorus (P),parathyroid hormone (PTH),β2 microglobulin (β2-MG) and cysteine protease inhibitors (Cys-C) after treatment in the two groups were significantly decreased(P＜0.05).The clearance rates of P,PTH and Cys-C in the HFHD group were significantly higher than those in the HDF group(t=2.479,t=1.834,t=1.512,P＜0.05).The mortality after an average follow-up of (12.2 ± 3.7) months had statistical difference between the two groups,the mortality rate in the HDF group was significantly higher than that in the HFHD group (P＜ 0.05).The multivariate Cox regression analysis results showed that the HFHD was an important factor affecting death in ESRD patient (HR =0.50,95 ％ CI:0.33-0.84,P =0.009).Conclusion HFHD has more significant effect for clearing P,PTH,β2-MG and Cys-C than HDF in ESRD patients,moreover can reduces their mortality.