Objective To investigate the clinical effect of vitapex paste in the treatment of deciduous teeth with periapical inflammation.Methods 112 children with chronic apicitis of deciduous teeth were divided into two groups randomly and averagely.The research group used vitapex paste,while the control group used zinc oxide eugenol paste.The clinical effects of the 2 groups were compared.Results Compared to the control group,the response to root canal filling of the research group was much weaker ( 10.7％ to 25.0％ ),which had statistical difference ( x2 =3.02,P =0.0 1 1 ).There wasalso significant difference betweenthe success rateofthetwogroups after 1 year followed up( x2 =5.16,P =0.004).Conclusion sing vitapex paste for root canal filling had a higher success rate and a weaker respose to root canal filling.

Objective To study the clinic features and risk factors of bladder cancer occurrence after radical nephroureterectomy of urothelial carcinoma of the upper tract.Methods 61 cases of urothelial carcinoma of the upper tract from March 2013 to December 2013 in Beijing Friendship Hospital are retrospectively studied.31 patients are male,while the other 30 patients are female.Age of them ranges from 43 to 90 years old,and the average age is 69 years old.17 patients are accompanied with diabetes.32 patients are accompanied with hypertension.12 patients have the history of chronic nephrosis.7 patients have the history of renal transplation operation.47 patients have the symptom of hematuresis.16 patients have the symptom of lumbago.Body mass index ＜ 18.5 kg/m2 2 cases,18.5 ～ 22.9 kg/m2 25 cases,23.0 ～ 24.9 kg/m2 10 cases,25.0 ～ 29.9 kg/m2 20 cases,≥ 30.0 kg/m2 4 cases.25 patients' serum creatinine is abnormal,while the other 36 patients'is normal.36 patients have left tumors,while the other 25 patients have right tumors.39 patients have hydronephrosis before operation.25 patients go through ureteroscopy.11 patients have the concurrence of bladder cancer preoperatively.25 patients have renal pelvic carcinoma,while the other 36 patients have carcinoma of ureter.14 patients have multiple tumors,while the other 47 patients just have single tumors.The size of tumor ranges from 0.5cm to 8.0cm,and the average size is 2.9cm.27 patients have the cauliflower-like tumors,while the other 34 patients have other shaped tumors.28 cases have the positive results of cytology,while the other 33 cases donl have.6 patients go through cystoscopic operation of ureterovesical junction,while the other 55 patients go through open operation of ureterovesical junction.Kaplan Meier analysis is used to find univariate risk factors of the bladder cancer occurrence postoperatively,and Log-rank test is used after that.Cox regression analysis is used to identify the independent risk factor from all the univariate risk factors.Results Time of surgery ranges from 2.0 hours to 7.5 hours,and the average time is (4.9 ± 1.2) hours.39 patients' tumors are equal or greater than T2 stage,while the other 22 patients'tumors are less than T2 stage.2 patients have Ⅰ grade tumors,40 patients have Ⅱ grade tumors,and the other 19 patients have Ⅲ grade tumors.12 patients go through systematic chemotherapy,while the other 49 patients don l.23 patients go through intravesical instillation postoperatively,while the other 38 donl.Follow-up time of 61 cases ranges from 22 months to 31 months,and the average time is (27.3 ± 2.7) months.3 to 30 months after radical nephroureterectomy,21 cases(34.4％) have bladder cancer occurrence.4 of patients who have concurrence of bladder cancer preoperatively go through the occurrence of bladder cancer(57.1％,4/7),and 17 of patients who dont have concurrence of bladder cancer preoperatively go through the occurrence of bladder cancer(3 1.5％,17/54).8 of patients with multiple tumors go through the occurrence of bladder cancer(57.1％,4/7),while 13 of patients with a single tumor go through the occurrence of bladder cancer(27.7％,13/47).18 of patients who have tumors equal or greater than T2 stage have the occurrence of bladder cancer(46.2％,18/39),while 3 of patients who have tumors less than T2 stage have the occurrence of bladder cancer(13.6％,3/ 22).3 of patients with postoperative intravesical instillation have the occurrence of bladder cancer(13.0％,3/23),while 18 of patients without postoperative intravesical instillation have the occurrence of bladder cancer(47.4％,18/38).Single factor analysis shows that preoperative concurrence of bladder cancer(P =0.003),multiple tumors (P =0.044),T stage (P =0.023) and postoperative intravesical instillation (P =0.002) have significant influence on the occurrence of bladder cancer.And Cox proportional hazards regression model analysis shows that the preoperative concurrence of bladder cancer (RR =2.860,P =0.024,regression coefficient =1.051) and postoperative intravesical instillation (RR =0.201,P =0.011,regression coefficient =-1.065) are significantly related to the occurrence of bladder cancer after radical nephroureterectomy.Conclusions The preoperative concurrence of bladder cancer and postoperative intravesical instillation are the independent risk factors of the bladder cancer occurrence after radical nephroureterectomy.And the preoperative concurrence of bladder cancer is a risk factor,while the postoperative intravesical instillation is a protective factor.

Objective To investigate the feasibility of laparoscopic surgery for hydronephrosis caused by retroper-itoneal fibrosis.Methods Reported the diagnosis and treatment procedure and result of 1 case of hydronephrosis caused by retroperitoneal fibrosis on left side,who underwent laparoscopie surgery.Investigated the feasibility of hydronephrosis caused by retroperitoneal fibrosis with literature review.A 55-year-old female patient had interrupt-able left lower extremity swollen with nausea and vomiting for five months.The blood test showed progressive eleva-ting of creatinine and urea nitrogen.The highest creatinine value was 503 μmol/L.The computerized tomography showed renal atrophy on right side and there was a stenosis on crossing place between inferior segment on left ureter and iliac blood vessels,also there is a soft tissue image in front of aorta and around iliac blood vessels,the superior ureter was dilated.We set double J tube into left ureter before surgery with semi-reclining position toward right side,set trocar cannula through 1 era,4 em below the umbilicus as well as the same two points on lateral external oblique muscle of abdomen,set laparoscope from 1 cm below the umbilicus.We found the abdominal membrane pale and touch as tabular.There was serious eonglutination between middle segment ureter and around iliac blood vessels after we cut open retroperitoneal membrane.We carefully dissected the ureter for 9 cm and soluted the eonglutination a-round the ureter,then set the ureter into abdominal cavity and closed retroperitoneal membrane.Results The pa-tient recover well after surgery and sutured out after 5 days,pulled out the double J tube after I month.The patient had low back pain ,fever and oliguria after the double J tube was pulled out and recovered with spasmolysis,analge-sia and antibiosis treatment after 2 days.The voiding volume and renal function became normal.The B-type ultra-sound test showed hydronephrosis on left side was lessened.The ultrasound test after 3 months result showed hydro-nephrosis was significantly lessened than before surgery and renal function was normal.Conclusions The laparo-scopic ureterolysis surgery for retroperitoneal fibrosis is minimally invasive,less suffering and quick recovery.Be-cause of few case report and short follow-up time is more eases and long-term follow-up are needed to elucidate the therapeutic efficacy of this treatment.

Objective To investigate the curative effect of RevoLix 2 micron continuous wave laser va-poresection for treatment of elderly and high risk benign prostatic hyperplasia patients. Methods Clinical data of 36 benign prostatic hyperplasia patients with medical complications aging 70 -82 years were retro-spectively analyzed. Operations were done after their complications were controlled. The RevoLix 2 μm laser system with output power of 70 W was used, and normal saline was used as rinse solution. Operations were started after positions of seminal colliculns and distances to neck of bladder were confirmed. Results Oper-ation time varied from 65 to 135 rain with a mean time of (83.6±10. 6) rain. Occasional venous hemor-rhage occurred during operation but no arterial hemorrhage was observed. No blood transfusion necessitated and no TURP syndrome was observed. Catheter was removed 2-4 days after operation. All the patients could urinate freely. No urinary incontinence was found during follow-up except 2 patients with temporary urinary incontinence. A 3-6 months follow-up showed that IPSS decreased from 24. 26 ±2. 70 to 8.47±4. 32, QOL dropped from 4. 51±0. 56 to 1.34 ± 0. 53, and Qmax increased from (6. 37 ± 1.31) mL/s to (17.24± 2. 32) mL/s. Conclusions RevoLix 2 micron continuous wave laser vaporesection is a safe and effective method with less trauma and fast recovery for treating elderly and high risk benign prostatic hyperplasia pa-tients.

OBJECTIVE: To study the pharmacological activities and toxicity of the crude alkaloids of Toddalia asiatica and to provide pharmacological data for the further development of this herbal medicine. METHODS: We observed the anti-inflammatory effects of the crude alkaloids of Toddalia asiatica, using xylol and agra to induce the turgidness and sodium carboxymethyl cellulose (CMC-Na) to induce leucocyte strolling in the rats. The analgesic effects were observed by body-distortion methods. The effects of alkaloids of Toddalia asiatica on hepatic function were observed by testing the contents of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) in serum and calculating the liver index. The LD 50 and 95% creditability were calculated with developed Karber Method. RESULTS: The administration of alkaloids of Toddalia asiatica had the function of inhibiting the auricle swelling caused by xylol and joint swelling caused by agar and leucocyte migration caused by CMC-Na, decreasing the body-distortion of the rats. After two weeks administration, the contents of ALT and AST showed that there was no obvious difference between administered group and control group. The LD50 of the crude alkaloids of Toddalia asiatica was 1.622 g/kg and the 95% creditability was 1.29-2.03 g/kg. CONCLUSION: Toddalia asiatica has anti-inflammatory and analgesic effects, and there is no injury to the liver after long-term administration in rats.

Seven cases of renal tumor treated at our hospital from May 2009 to November 2011 were assigned to undergo laparoscopic ultrasonography assisted laparoscopic partial nephreetomy.The mean operative duration was 109 minutes (range:102-121).And the mean volume of blood loss was 82 ml (range:60-120).All patients had confirmed negative margins.Renal clear cell carcinoma was definitely diagnosed in all cases.Laparoscopic ultrasonography could provide more precise information of renal tumor within renal capsule.Thus it may be used to guide the operation so that tumors are excised more completely,residual tumor tissues avoided and normal renal tissues protected.

Objective To evaluate mini-percutaneous nephrolithotomy in treating superior segmental ureteral calculi. Methods Two Hundred and thirty-six patients underwent mini-percutaneous nephrolithotomy with holmium laser for superior segmental ureteral calculi from May 2005 to May 2008, 133 male and 103 female. Their age ranged from 17 to 76 years old with a mean of 47. 2 years. Of the 236 patients,141 compli-cated with calculi in the left side and 88 cases in the right side,7 in the both sides. The calculi diameter ranged from 0. 7 cm to 2.2 cm and the mean diameter was 1.4 cm. One hundred and ninety-three patients had undergone ESWL from 1～6 times. Results Of the 236 patients,217 were rendered stone-free at 1 pro-cedure. Residual calculi were found in 12 cases after operation and drugs were used for treatment. The resid-ual calculi were removed after 1 month. Seven cases with residual calculi were treated by ESWL and the cal-culi were removed. The total stone clearance was 91.9%. The mean operation time was 31.3 min(rang from 19～52 min), and the mean hospital stay was 9.5 days(rang from 6 to 12 days). The main complications following operation included: durative hematuria in 25 cases relieved by haemostasis and diuresis treatment within 24 to 48 hours,pnstoperative fever in 141 cases within 24 hours of which 103 were relieved by antiin-flammatory and fluid replacement treatment within 24 to 48 hours. Thirty-eight cases were relieved by anti-inflammatory treatwent depending on urine culture results within 3 to 7 days. The postoperative pain in all patients was light. Conclusion Minimally invasive percutaneous nephrolithotomy with holmium laser under ultrasound guidance is simple,safe and effective in treating proximal ureteral calculi.

Objective To study the growth suppressive effect of demethylation drug 5-aza-2'-deoxycytidine on bladder tumor cells. Methods The growth suppressive effect of DAC on 4 transitional cell carcinoma (TCC) cell lines was measured using the Cell Proliferation Reagent WST-1 assay.The effects of DAC on apoptosis induction and cell cycle arrest were analyzed by flow cytometric analysis. Caspase 3, 9 activities were analyzed by APOPCYTO Caspase Colorimetric Assay Kit and PCNA expression was also investigated by Western blot to clarify the mechanism of DAC against TCC. Results DAC inhibited the growth of all TCC cell lines tested in a dose-dependant manner, however,growth suppressive effect of DAC was independent of p53 status in TCC. DAC inhibited proliferation via inducing G2/M cell cycle arrest but not via inducing apoptosis. After treated with 0, 1 and 8 μmol/L DAC, cells of RTl 12 in G2/M phase was (36.3 ± 3.4) %, (46.2 ± 4.6) % and (56.5 ±6.2) %, TCCsup was (37.5 ± 3.8) %, (48.4 ±4.9) % and (60.1 ± 6.7) %, respectively. The expression of PCNA was decreased by DAC, but caspase3, 9 activities were not activated. Conclusion DAC could suppress the growth of TCC cells and might be a new strategy to treat bladder malignancy in the future.

Objective To summarize the author' s clinical experiences in the diagnosis and treatment of urachal carcinoma.Methods Thirteen cases with urachal carcinoma from 1990-2011 at Beijing Friendship Hospital affiliated to Capital Medical University were retrospectively reviewed and analyzed.Results The most common complaint was hematuria;B ultrasonic or CT scan demonstrated a parenchyma or vesica between the bladder dome and abdominal wall.Nine patients underwent extensive pattical excision of the bladder,3 paitents underwent radical resection,and 4 patients received comprihensive chemotherapy.The five-year survival rate was 30.7％.Conclusion Extensive partial excision of the bladder is recommended for urachal carcinoma.

Objective To investigate the therapeutic and adverse effects of short-term continuous subcutaneous insulin infusion (CSII) in patients with newly-diagnosed type 2 diabetes mellitus. Methods By way of follow-up and retrospective study, 256 patients with newly-diagnosed type 2 diabetes mellitus receiving two weeks of CSII therapy were analyzed in our diabetes center. The parameters, such as blood glucose level after two-week CSII therapy, time needed to control hyperglycemia, insulin dosage and the rate of hypoglycemic episodes were observed and recorded. Results The optimal glycemic control rates after 3 days, 7 days, 2 weeks were 46.7%, 78.4%, 92.2% respectively. The remission rates of patients who maintained optimal glycemic control at the third, sixth, twelfth, twenty-fourth and thirty-sixth months and more than 48 months after withdrawal of insulin were 75%, 64.8%, 53.5%, 30.9%, 10.2% and 0%, respectively. In patients with a period of remission over 3 months,the daily total insulin requirement on the day of withdrawal of CSII was less than that in patients with remission less than 3 months (P＜0.01). The duration of remission was negatively correlated to daily insulin requirement on the day of CSII withdrawal(r=-0.63, P＜0.01). Conclusion Patients with newly-diagnosed type 2 diabetes mellitus can quickly achieve optimal glycemic control by CSII. CSII may decrease glucotoxicity to pancreatic β cells and delay the deterioration of β-cell function .