Objective To investigate the safety and effectiveness of transurethral bipolar plasmakinefic resection in treating urethral stricture. Methods Totally 46 patients with urethral stricture were treated with transurethral bipolar plasmakinetic resection, and they were followed up for 3～12 months to observe the clinical effects. Results The segments of urethral scar were accurately incised and resected in all the 46 cases,24～26F bougies could pass through the urethra smoothly, and miction should be kept unobstructed. Totally 41 cases were followed up postoperatively, the maximal flow rate(Qmax) was ( 18.6±4.1 ) ml/s, which was obviously ameliorated as compared with that before operation(t=14.25, P＜0.05);sexual function had no obvious changes before and after operation;no serious complications of urethral massive bleeding, urinary incontinence, fistula of urethral diverticulum,urethral perforation, rectal injury, etc. was observed. Conclusion Transurethral bipolar plasmakinetic resection is an effective method for treating urethral stricture, because it has fewer complications, faster postoperative recovery and lower recurrence.

Objective To explore the clinical effect of inlay labial mucosa graft urethroplasty (LMGU) forⅠperiod in the complexity hypospadias.Methods According to the digital table,30 patients with complexity hypospadias were randomly divided into control group and observation group,15 cases in each group.The control group took Ⅰ period operation.The observation group received surgery by stages to complete.Routine urinary diversion during operation was performed after bladder puncture and ostomy,and in the control group,the urethra was placed with self-made 10-14F lateral hole silica gel stent,which was extracted out in the middle of the perineum,left or right.After 12-14d removal postoperative,the urination was observed.The catheter in the observation group was removed after 10 d,the urethroplasty is performed 6 months later.The clinical effects of the two groups were compared.Results In the control group,postoperative urinary fistula in 2 cases(13.3%),urethral orifice in 1 case(6.7%).In the observation group,postoperative urinary fistula in 2 cases(13.3%),6 months postoperatively in patients with urinary fistula to repair fistula was successful,urethral mouth narrow pure line incision.The incidence rate of complication of the control group was 20.0%,which of the observation group was 13.3%,the difference was not significant between the two groups(P>0.05).All cases were followed up for 1 to 2 years,did not occur urinary tract stones,hair growth,oral ulcers,such as the limited mouth complications.The penis was straight,beautiful shape.Conclusion Inlay LMGU Ⅰperiod is suitable for multiple surgery led to the lack of local incidence,urethral plate dysplasia and with severe penis abnormalities such as complexity in patients with hypospadias.The postoperative complications,micturition,penile appearance have no obvious differences compared with the stage,it is worthy of clinical popularization and application.

Objective To evaluate the clinical efficacy and security of retroperitoneal laparoscopic ureterolithotomy(RLUL) for impacted ureteral calculi after radical cystectomy and ileal conduit.Methods 5 patients with unilateral impacted ureteral calculi after radical cystectomy and ileal conduit received RLUL were selected,and a retrospective study was performed for manner,duration of surgery,complications and length of stay and other indicators,and the treatment effect was evaluated.Results All procedures were successful and the mean operation time was (82.0±27.7)min,the extubation time was (5.4±1.1)d,hospitalization time was (10.0±2.9)d.Postoperative follow up for 6-48 months,there were no obvious complications.Conclusion The RLUL showed satisfactory availability and security for management ureteral calculi after radical cystectomy and ileal conduit.

Objective:To study the influence of “Warming Yang and Nourishing Qi”Acupuncture in the expression levels of acetylcholine receptor protein (AchR)in gastrocnemius neuromuscular junction (NMJ)of the rats with experimental autoimmune myasthenia gravis (EAMG),and to clarify the mechanism of “Warming Yang and Nourishing Qi”Acupucture in the treatment myasthenia gravis (MG).Methods:The female Lewis rats were used to establish the EAMG rat models immuned with AchRα1 129-145 polypeptide fragments.30 EAMG rats were selected randomly and divided into model control group, drug control group, and acupuncture treatment group (n=10),and another 10 rats purchased at the same period were used as blank control group.The rats in drug control group were treated with 1 8.5 mg · kg-1 · d-1 pyridostigmine by gavage. And the rats in acupuncture treatment group were treated with irritating by“Warming Yang and Nourishing Qi”Acupuncture.The rats in blank control group and model control group were not treated .The Lennon symptom scores of the rats in various groups were recorded.After treatment,the tissues of gastrocnemius NMJ of the rats were taken,and the AchR protein expression levels in NMJ of the rats in various groups were detected by Western blotting method. Results:Compared with blank control group,after successfully modelling,the Lennon symptom scores of the rats in model control group, drug control group and acupuncture treatment group before treatment were significantly increased (P<0.01).Compared with model control group,the Lennon symptom scores of the rats in drug control group and acupuncture treatment group after two treatment course were significantly increased (P<0.01 ). Compared with blank control group, the AchR protein expression level in gastronemus NMJ of the rats in model control group was significantly decreased (P<0.01). Compared with model control group, the AchR protein expression levels in gastronemus NMJ of the rats in acupuncture treatment group and drug control group after treatment were significantly increased (P<0.01).Conclusion:“Warming Yang and Nourishing Qi”Acupuncture has good therapeutic effect on the EAMG through increasing the NMJ AchR protein expression level of the EAMG rats.

Objective To assess the clinical application value of vector flow mapping (VFM) in evaluating the left ventricular diastolic function in hypertensive patients with different left ventricular geometric patterns.Methods One hundred and sixty-nine patients with hypertension and 50 healthy volunteers were enrolled.Hypertensive patients were divided into four groups with different ventricular configurations according to ASE guide line in 2005:normal geometry group,concentric remodeling group,concentric hypertrophy group and eccentric hypertrophy group.The quantitative parameters,including average energy loss(aEL) and circulation were measured.Difference was evaluated among five groups at apical,mid and basal segments and at different periods.The correlationship was analyzed between aEL,circulation and E/e',respectively.Results ① Compared to control group,aEL was higher in four hypertension groups at three segments of atrial systole(P ＜0.05).aEL in eccentric hypertrophy group was higher than those in control group,normal geometry group or concentric remodeling group at apical and mid segments of atrial systole,and higher than those in other hypertensive groups at basal segment (P ＜ 0.05).In four hypertension groups,circulations in rapid filling phase of anterior mitral valve were lower than that in control group,but circulations in slow filling phase of posterior mitral valve were higher than that in control group(P ＜0.05).The circulation in slow filling phase of posterior mitral valve in concentric remodeling group was higher than that in normal geometry group,and that in eccentric hypertrophy group was higher than those in normal geometry group and concentric remodeling group(P ＜0.05).②When intra-group comparison,aEL were different in different segments of same phase or at different phases of same segment(P ＜0.05).③aEL had a good correlation with E/e'at basal segment of atrial systole in four hypertension groups(r =0.66,P ＜0.01).Conclusions VFM can be utilized to analyze left ventricular hemodynamics features of hypertensive patients with different left ventricular geometric patterns,it may be a good supplement for assessing cardiac diastolic function and reflect the extent of damage.

To explore the clinical ,pathological and immunohistochemical features of carcinoma with multi-directional differentiation derived from junction of bladder and prostate .We collected clinical data and tissue samples of three typical cases of carcinoma from our hospital .Routine preparation of slides and immunohistochem-ical methods combined with clinical data and pathological changes analysis were adopted .We found that all 3 ca-ses occurred in the elderly lesions involving the bladder and prostate .Dysuria was the main common symptom .All the cases had a history of chronic inflammation in urethral and prostate gland .The following up data showed that survival time in two of them were no more than 15 months.The third patient without chemotherapy who took drugs of bicalutamide,enantone and pamidronate still was alive after 28 months.The pathological changes of these cases had the common features with diversity .They all showed the structure with nests ,papillary,solid,adenoid,single or syncytial cells .The nuclear of cancer cell was enlarged with hyperchromatic feature .The mitotic figures were easily found.The metaplasia and atypical hyperplasia of prostate were all found .The immunohistochemistry results showed positive results for HCK,LCK,p53,p63,PSA,P504S and negative for vimentin and S -100.The average proliferation index of Ki-67 was 77%.

Objective To evaluate clinical efficacy of retroperitoneal laparoscopic adrenalectomy in patients with adrenal disease.Methods 21 cases of adrenal disease undergoing retroperitoneal laparoscopic adrenalectomy from Jun.2006 to Oct.2010 were retrospectively reviewed.Results All operations were performed successfully except 2 cases were converted to open surgery due to peritoneal rupture,which resulted in difficult exposure of retroperitoneal cavity.The operation time ranged from 55 to 300 minutes,with 90 minutes as the medium.Blood loss volume ranged from 10 to 100 ml during operation (30 ml as the medium ).No blood transfusion was given.No complication such as massive hemorrhage,infection,abdominal visceral injury etc.occurred.19 patients were treated successfully and followed up from 3 to 55 months with 12.3 months as the medium.No tumor recurrence and metastasis was found in the 19 cases.Conclusion Retroperitoneal laparoscopic adrenalectomy has advantages of high safety,less complications and satisfactory efficacy in patients with adrenal diseases.

Objective To explore the clinical effect of laparoscopic radical nephrectomy by retroperitoneal in 65 cases.Methods 65 patients who received retroperitoneal laparoscopic radical nephrectomy were selected as the observation group,and their clinical data were analyzed.At the same period,S0 patients treated by open operation were selected as the control group.The clinical effect was compared between the two groups.Results The operation time,intraoperative blood loss,hospital stay,incision infection,pulmonary infection,hypercapnia,intestinal injury of observation group were lower than those of control group (t =7.60,8.38,8.83,x2 =8.33,6.19,4.08,4.08,all P ＜0.05).The positive margin rate,local recurrence rate,distant metastasis rate of two groups were not significantly different (P ＞ 0.05).Conclusion Laparoscopic radical nephrectomy by retroperitoneal has advantages of small wound,quicker recovery,less complications and good prognosis,which is worthy of clinical application.

Objective To approach the clinical curative effect of retroperitoneal laparoscopic adrenalectomy.Methods 120 adrenal tumors patients clinical data of urinary surgery in our hospital were analyzed,who was divided into detection group(80 cases) and control group(40 cases).Results The operation time,bleeding volume,postoperative exhaust time,hospitalization time,incision infection,pulmonary infection,intestinal injury of detection group were lower than those of control group (t =5.59,21.17,26.32,6.01,x2 =7.79,7.79,5.13,all P ＜ 0.05).Conclusion Retroperitoneal laparoscopic adrenalectomy has some advantages:the small incision,less trauma,faster postoperative recovery,less complication,,which was worth of applying.

Objective To investigate the optimum dose of dexmedetomidine when combined with propofol for induction of anesthesia.Methods One hundred and twenty ASA physical status Ⅰ or 1Ⅱ patients of beth sexes,aged 18-60 yr,with body mass index of 18.5-30.0 kg/m2,scheduled for elective ophthalmologic operation under general anesthesia,were randomly divided into 6 groups (n =20 each) using a random number table:normal saline group (NS group) and different doses of dexmedetomidine groups (D1-D5 groups).Different loading doses of dexmedetomidine 0.2,0.4,0.6,0.8 and 1.0 μg/kg (in normal saline 50 ml) were infused intravenously in D1-D5 groups,respectively.The equal volume of normal saline was infused over 15 min in group NS.After 10 min observation,target-controlled infusion (TCI) of propofol was started.The initial target plasma concentration was set at 3.2 μg/ml.Loss of consciousness was considered to be positive response.The median effective concentration (EC50) and 95％ confidence interval of propofol TCI required for loss of consciousness were calculated.After administration of dexmedetomidine,the development of adverse effects was recorded before propofol TCI.Results Compared with NS group,the EC50 of propofol TCI required for loss of consciousness was significantly decreased in D2-D5 groups,and no significant change was found in the EC50 of propofol TCI required for loss of consciousness in D1 group.The EC50 of propofol TCI was decreased gradually with the increasing doses of dexmedetomidine between D1 and D2 groups,between D2 and D3 groups,and between D4 and D5 groups,while there was no significant difference in the EC50 of propofol TCI required for loss of consciousness between D3 and D4 groups.The incidence of hypotension was 5％ (D3 group),11％ (D4 group) and 31％ (D5 group),and the incidence of bradycardia was 0 (D3 group),11％ (D4 group),and 19 ％ (D5 group).No hypotension and bradycardia developed in D1 and D2 groups.The incidence of hypotension and bradycardia was significant increased in D4 and D5 groups as compared with NS,D1,D2 and D3 groups.Conclusion The optimum dose of dexmedetomidine is 0.4μg/kg when combined with propofol for induction of anesthesia.