Objective To investigate the value of expressed prostatic secretion (EPS) leukocyte count in the diagnosis of chronic prostatitis. Methods EPS was obtained from 75 out patients with chronic prostatitis,pH and WBC per high power microscopic field being studied.Transabdominal prostatic ultrasonography was performed. Results Mean pH of the EPS was 6.9?0.4.pH of the EPS and the frequency of ultrasound abnomalities were significanly correlated to the leukocyte count in EPS.There was no correlation between age of symptom duration and the pH of EPS, frequency of ultrasound abnormalities or white blood cell counts in EPS. Conclusions In chronic prostatitis,the leukocyte count in EPS was positively correlated with the ultrasound abnomalities and the pH elevation of EPS.There was no correlation between age or symptom duration and pH of the EPS,frequency of ultrasound abnormalities or leukocyte count in the EPS.

Objective To evaluate the diagnosis and treatment of cryptorchidism and its complications,and to emphasize the appropriate surgical treatment age of cryptorchidism. Methods The data of diagnosis and treatment of 230 cases of cryptorchidism (a total of 299 undescended testicles) were reviewed.Their ages varied from 1 to 59 years and the mean age was (9.5?9.0)years.88 cases had cryptorchidism on the left side;73 cases on the right side;and 69 cases on both sides.Cryptorchidism was complicated by hypospadias in 11 cases and by latent penis in 2 cases. Results In these series only 25 cases (10.9%) underwent surgical treatment within 2 years of age.Surgical operations were performed in these cases (289 sides) and the locations of the undescended testicles were determined.Of them 273 ones underwent primary descending and fixation,15 ones underwent resection and histopathological examinations for mahgnant or shrinked tendency 1 was absent during the detection,and they were followed up for 4 months to 5 years with the success rate being 98.9 %.Of these cases 260 ones(90.0%) were external abdominal;25 ones (8.7%) were intra-abdominal;4 ones were missing (1.4%).For external abdominal testicles the positive ratio of detections by B-ultrasonography was 86.3%(126/146) and that of physical examination was 63.0% (92/146),which showed statistically significant difference ( P

Objective To analysis the differences of age, prostate volume, serum PSA and PSAD, IPSS between the BPH and BPH with prostatitis. Methods Clinical data of 100 patients whom received surgical treatments with a pathologic diagnosis of BPH were retrospectively analyzed. The occurrence of prostatitis was determined by pathology. The differences of age, prostate volume, serum PSA and PSAD, IPSS between the BPH cases and BPH with prostatitis cases were analyzed. The capability of B-ultrasound in diagnosis of the prostatitis combined with BPH was evaluated. Re-suits 66% BPH patients were found combined with prostatitis. There was a significant correlation between inflammatory infiltration grade and aggressiveness grade (r= 0. 772, P<0. 001). There was a moderate correlation between prostate volume and patient age(r= 0. 420, P<0. 001). There was a low correlation between serum PSA and patient age (r= 0. 258, P<0. 01) while no significant correla-tion between PSAD and age. The patient age of BPH combined with prostatitis group was significantly higher than BPH group (P<0. 05). Average prostate volume of combined with prostatitis group was significantly higher than BPH group (P<0. 05). There was a significant correlation between prostate volume and inflammatory infiltration grade(r=0. 292, P=0. 003), PSA and aggressiveness grade(r=0. 254, P=0.007). Both average PSA and PSAD of BPH combined with prostatitis group were signif-icantly higher than the BPH group (P<0. 05). When the factor of difference in age distribution was considered, the conclusion were still valid (P<0.05). On α= 0.05 level, relatively low correlations were found between PSA and inflammatory infiltration grade(r=0. 319, P=0. 001), PSA and aggres-siveness grade(r=0. 214, P=0. 032), PSAD and inflammatory infiltration grade ( r=0. 212, P=0. 034). There was no significant correlation between PSAD and aggressiveness grade(r=0.081 ,P=0.425). Average IPSS of combined with prostatitis group were significantly higher than BPH group. On diagnosis of the combined prostatitis in BPH, the sensitivity of ultrasonic was 21.2% with a speci-ficity of 82.4%. Conclusions Prostatitis is often found in more than half BPH samples. The BPH with prostatitis usually has bigger prostate volume, higher PSA, PSAD and may present relatively se-verer clinic syndromes.

Objective To evaluate the therapeutic value of video-assisted thoracoscopy in treating posterior mediastinal benign neurogenic tumors.Methods From May 1994 to May 2006,40 patients received thoracoscopic resection of posterior mediastinal benign neurogenic tumor.Double lumen endotrocheal intubation was applied and 3 trocars were placed according to the location of the tumor.A mini-incision was used if the tumor was too large to be safely resected.Results The complete resections were successfully finished in 34 cases while the remaining 6 cases needed a 6 cm mini-incision to complete the surgery.Pathological examination showed 20 cases of neurilemoma,14 cases of neurofibroma,and 6 cases of paraganglioma.The average diameter of these tumors was 4.7 cm(range:2-12 cm).The average thoracic drainage time was 2.2 days(1-7 days).And the average postoperative hospital stay was 4.8 days(3-13 days).Only 2 cases experienced minor complications.There was no death in this study.The time of follow-up was 9 months to 12 years,in which 16 cases were followed for less than 3 years,12 cases for 3-5 years and 7 cases for over 5 years,5 cases lost contact.Only one patient received re-resection due to local recurrence.Conclusions Video-assisted thoracoscopic resection of posterior mediastinal benign neurogenic tumor is safe,reliable and minimally invasive,and can thus be regarded as the therapy of first choice.

Objective To present experience on the diagnosis and treatment of bladder outlet obstruction (BOO) caused by bladder neck fibrosis. Methods 30 cases of BOO caused by bladder neck fibrosis were studied. All the patients were treated by transurethral partial resection or incision of the cervix vesicae combined with alpha 1 adrenoceptor antagonists such as tamsulosin and terazosin or parazosin. Results Urination has been improved in all.The patients have been followed up for 3 to 30 months.On repeated uroflowmetry,the 30 patients showed the urine flow rates have been more than 15ml/s. IPSS scores was 5.3?1.7(25.4?4.2 preoperative) and quality of life scores was 1.4?0.6(4.1?0.8 preoperative).Fibroblast proliferation was noted in all the 30 and obvious chronic inflammation in 18. Conclusions Clinical symptoms, pressure rate measurement and cystoscopy are the reliable diagnostic methods.Transurethral partial resection or incision of cervix vesicae combined with alpha 1 adrenoceptor antagonists is effective.

Objective To compare the distance of left ventricular along long axis measuring under real-time movement and Doppler tissue imaging.Methods Titanium nips were implanted into anterior wall and anterior septum of left ventricule of 7 open-chest canine models.Quantitative study was made on time velocity integral(TVI) of the implanted myocardium and left ventricular long axis in 7 canine models,and 7 patients with replaced metal mitral valve.Digital subtraction angiography was adopted to record the real-time movement of the titanium nips in 7 canine models and the metal valve in 7 patients.And comparison was made between the results.Results The maximum values of displacement measuring with TVI were close to the distance under real-time movement. Conclusions The displacement measuring with TVI can reflect the character of the myocardial displacement truly.

Objective To evaluate the quality of the examination paper of the theory of Clinical Diagnostics,to explore and reflect on the teaching methods,so as to improve the quality of teaching.Methods Finals results of Clinical Diagnostics including 40 clinical undergraduates of Capital Medical University were analyzed.SPSS 20.0 was used to make analysis of the frequency,means statistics and normality of the examination paper.Kuder Richardson/Cmnbacha formula,percentage unification methods and so on were used to calculate confidence,validity,difficulty and degrees of distinction.Acquisition of relevant knowledge was assessed according to score distribution,while test paper quality was evaluated based on indicators including confidence,validity,difficulty and degrees of distinction.Results Test scores of 40 students were between 61 to 96 (83.64 ± 8.07).The degree of confidence (γ) for choice questions and subjective questions was 0.65 and 0.59 respectively;The validity (V) was 0.27;The overall difficulty (P) of the examination was 0.84;The degrees of distinction (D) were between 0.16 to 0.30.And the total points losing rate was 16.36％.Conclusion The examination is of medium difficulty and good degree of distinction,but the teaching strategies still need further adjustment in order to improve the students' ability of flexible application of the basic knowledge.

Objective To evaluate the basilar artery hemodynamical changes in cervical rotation and ventral flexion by color Doppler flow imaging(CDFI). Methods Basilar artery blood flow were detected during cervical With cervical right lateral,left lateral rotation and ventral flexion, the detection ratio of basilar artery by ultrasound were 89% ,84% ,81% respectively. There were no difference in statistics between the detction ratio of three kinds during cervical flexion,peak systolic velocity(PSV) and end-diastolic velocity(EDV) decreased apparently during left lateral rotation,which did not change during right lateral rotation. No changing was found with resistant index between the three kinds of cervical position. Conclusions The hemodynamic changing of basilar artery during cervical rotation and flexion could be detected by CDFI accurately,which might be useful in clinical study.

Objective To observe the effect of extraeorporeal shock wave lithotripsy (ESWL) on residual stones after different methods of surgery. Methods Clinical resources of 100 patients with residual stones after different methods of surgery treated with extracorporeal shock wave lithotripsy from May 2006 to May 2008 were retrospeetively studied. Of the 100 patients, ureteroscopic laser lithotripsy was used for 15 patients (Group Ⅰ) , ureteroscopic pneumatic lithotripsy was used for 25 (Group Ⅱ), mini-percutaneous nephrolithotomy (MPCNL) with holmium laser for 11 (Group Ⅲ), mini-percutaneous nephrolithotomy (MPCNL) with airpressure path lithotripterfor 12 (Group Ⅳ) , open surgery for the other 37 (Group Ⅴ). Results About 94% of the residual stones were shattered, and 86 % of the residual stones were cleared successfully. The clearance rate of residual stones from Group Ⅰ to Ⅴ was 100% , 100% , 81.8% , 83.3% , and 73.0% , respectively. The clearance rate of residual stones in Group Ⅰ + Ⅱ was higher than that of Group Ⅲ + Ⅳ and Group V (P<0.05). Conclusion Extracorporeal shock wave lithotripsy is good for the treatmentof residual stones after different methods of surgery, especially the management of residual stones after trans-urethral ureteroscope technique.

Objective To investigate the feasibility of non-invasive quantitative evaluation of portal pressure (Pp) by contrast enhanced ultrasonography (CEUS).Methods 18 portal hypertension patients (PTH group) were performed with CEUS within one week before splenectomy and pericardial devascularization,and 20 healthy volunteers as controls were recruited in this study (control group).Hepatic-right kidney sectionwas chosen to calculate the area under curve of portal vein/hepatic artery (Qp/Qa) and the perfusion intensity of portal vein/hepatic artery (Ip/Ia) through time intensity curves (TIC) of liver parenchyma generated from CEUS images.Pp was measured by intra-operative mesenteric vein catheter,and the correlation betweenPp and Qp/Qa,Ip/Ia were analyzed by Pearson correlation test.Results The levels of Qp/Qa and Ip/Ia in the PTH group were 2.28 ± 0.66 and 0.35 ± 0.14 respectively,which were both significantly declined than that in the controlgroup (5.72 ± 3.69 and 1.97 ± 0.17).In the PTH group,the correlation coefficient were-0.747 and-0.617,and the linear regression equations were Y =-83 X + 5.013 andY =-15X + 0.837,which indicated that Qp/Qa and Ip/Ia had significant correlation with Pp.Conclusions CEUS parameters,including Qp/Qa and Ip/Ia,are significantly correlated to Pp in portal hypertension patients,which indicate that CEUS could be a new non-invasive clinical method for evaluating Pp.