OBJECTIVE:To establish a method for determination of the related substances in Sertaconazole nitrate vaginal tab-let. METHODS: HPLC was performed on the column of Hypersil BDS C18(150 mm×4.6 mm,5 μm)with mobile phase of 0.5%Ammomium acetate solution-acetonitrile-methanol(15∶42.5∶42.5,V/V/V) at a flow rate of 1.0 ml/min,detection wavelength was 220 nm,column temperature was 25℃,and the injection volume was 20μl. RESULTS:The related substances in Sertaconazole ni-trate vaginal tablet can be well separated;the liner range of sertaconazole nitrate was 12.24-28.56 μg/ml (r=0.999 9);RSDs of precision,stability and reproducibility tests were lower than 1%;recovery was 99.38%-99.80%(RSD=0.14%,n=9). CONCLU-SIONS:The method is accurate and reliable with high sensitivity and strong specificity,and can be used for the related substances in Sertaconazole nitrate vaginal tablet.

Objective To improve the awareness of pel vi c lipomatosis in clinical practice. Methods A 51-year- old male patient with pelvic lipomatosis was admitted. Imaging studies showed th at there was mild degree of hydronephrosis on his both sides on IVU and a typica l inverted-pear shape of bladder and extended posterior urethra were also seen on IVU.CT scan showed that low density lipid piled in the pelvic cavity.MRI show ed obvious thickened soft tissue lesion around the bladder,rectum and in the pel vic cavity. The lesions in the pelvic cavity and around the ureters were removed and the lower segments of the ureters were loosened by laparoscopic surgery. Th e clinical characteristics of lipomatosis were reviewed by combination with the literature. Results Intraoperatively,apparently increase d lipid tissue was found in the pelvic cavity and there was large amount of lipi d tissue filling the space around bladder,rectum and sigmoid colon.This finding was consistent with the imaging study findings.About 500g lipid tissue was remov ed in the laparoscopic procedure.Pathologic study showed it was mature lipid tis sue.The patient was discharged 1 week after surgery.Two weeks after surgery,B-u ltrasound showed that there was improvement of hydronephrosis on both sides.The maximum width of right renal fluid sonolucent area decreased from 2.9 cm to 2.0 cm;the width of right upper ureter decreased from 1.2 cm to 1.0 cm;the maximum w idth of left renal pelvis decreased from 1.8 cm to 1.3 cm;and the width of left upper ureter decreased from 0.8 cm to 0.5 cm. Conclusions X-ray,CT scan and MRI are the most valuable examinations in the diagnosis of lipomatosis.Removing the lipid in the pelvis and around the bladder and loosenin g the ureters by laparoscopic surgery are minimally invasive,safe and effective in the treatment of pelvic lipomatosis.

Objective To evaluate the minimally invasive technique of laparoscopy by retroperitoneal access for the treatment of parapelvic cyst. Methods Twelve patients(7 men and 5 women;mean age,52 years;age range,34-75 years) with parapelvic cysts were included.The cyst size ranged from 2.8 cm?3.0 cm to 2.5 cm?11.5 cm.The cysts were on the left side in 6 cases and on the right in another 6 cases.Laparoscopic resection or de-roofing of the parapelvic cysts by retroperitoneal access was performed in them.The relevant parameters of the procedures were summarized.Results The success rate of the operation was 100%.The mean operative time of the first 6 patients was 190 min,while it was 86 min in the rest 6 patients.The mean intraoperative blood loss was 25 ml.No injury to the kidney pedicle or pelvis occurred.The mean hospital stay was 9 d.In 11 patients,no recurrence of the cyst occurred during a follow-up of 7-31 months.Only 1 patient with concomitant renal cyst had recurrence of the cyst found by B-ultrasound 2 years after operation.Conclusions Therapeutic laparoscopy by retroperitoneal access has advantages of minimal trauma,less blood loss,rapid recovery and better effect,therefore it is the ideal treatment choice for parapelvic cyst.

Objective: To report our prelimilary experience of laparoscopic radical prostatectomy (LRP) for clinically localized prostatic cancer.Methods:23 cases with localized prostatic cancer underwent LRP in our institution from October 2000 to August 2003. The median age was 64.5 years old, the median PSA was 13 ng/ml and median Gleason score of biopsy specimens was < 7. The operations were performed according to Montsouris technique. Briefly, operations were carried out transperitonealty, combining posterior and anterior approachs to the prostate, transecting the bladder neck, lateral dissection of the prostate, urcthrovesical anastomosis, completing the operation.Results:No death and no conversion rate were observed in this series of 23 cases of LRP. No re-intervention was needed. The median operating time was 325 minutes (range 270 to 660 min) including the lymphadenectomy phase that was considered necessary in the case whose PSA value was 51ng/ml and pathological reading was negative to thoses lymph nodes; The median intraoperative blood loss was 430 ml(rang 200 to 1100 ml). Postoperative bladder catheterization time was 20 days. Surgical positive margin was found in I case of pathlogical stage of pT2b and Casodex 50 mg had been used on this case for 3 mon after the PSA value was < 0.2 ng/ml. Postoperation follow-up of 3 to 24 mo. showed no signs of complications such as urethral stricture or urine incontinence. The PSA concentrations was < 0.3 ng/ml in all cases.Conclusions: LRP provides a clear and magnified anatomical image to allow a more precise and safer dissection.

Objective To classify patients with pelvic pain and to improve the understanding of etiology and to guide treatment by using a clinical phenotype system (UPOINT) and to examine the relationship between UPOINT and symptoms in patients with interstitial cystitis/painful bladder syndrome. Methods From November 2009 to October 2011,54 IC/PBS patients including 42 female and 12 male patients were treated.The mean age was 41.0 ± 12.4 yrs (range from 21 to 76 yrs).Median symptom duration was 63.0 ± 59.2 months ( range from 6 to 240 months).54 patients with interstitial cystitis/painful bladder syndrome were classified in each domain of UPOINT,that was urinary,psychosocial,organ specific,infection,neurological/systemic and tenderness.Symptoms were assessed using the Interstitial Cystitis Symptom Index,Pain/Urgency/Frequency score and visual analogue scale for pain/urgency/frequency.Clinically relevant associations were calculated. Results In the 54 IC/PBS patients,median ICSI score was 15.0 ± 1.84 points ( range from 9 to 19 points) ; Median PUF was 20.0 ± 2.3 points ( range from 14 to 25 points) ; Median pain associated with bladder score of VAS was 7.0 ± 1.0 points (range from 5 to 10 points).The percent positive for each domain was urinary 100％,psychosocial 44％,organ specific 96％,infection 33％,neurological/systemic 24％ and tenderness 28％,respectively.All patients were included in at least 2 domains,with 2 domains of 11％,3 domains of 38％,4 domains of 36％,5 domains of 13％ and 6 domains of 2％.The number of domains was associated with greater symptom duration ( Spearman r =0.76,P ＜0.01 ) but not age.The number of domains was also associated with poorer general interstitial cystitis and pain symptoms ( Spearman r =0.89,P ＜ 0.01 ) but not with frequency or urgency.The psychosocial domain was associated with increased pain,urgency and frequency,while tenderness was associated with increased ICSI score,PUF score and urgency.The neurological/systemic domain was associated with increased ICSI score while the infection domain was not associated with any increased symptoms. Conclusions The UPOINT phenotyping system can classify patients with interstitial cystitis according to clinically relevant domains.The UPO1NT system can act as the guiding theoretical basis for directing multimodal therapy,it deserves clinical promotion.

Objective To analyze the causes of under-staging in first transurethral resection of bladder tumor (TURBt) and find out solutions. Methods We retrospectively analyzed 118 cases (93 males and 25 females) of non-muscle invasive bladder cancer and compared the grade and stage between the first TURBt with the second transurethral resection (TUR) or partial cystectomy (PC) or radical cystectomy (RC) from January 2006 to March 2011.The mean patient age was 63.0 ±8.6 yrs.The tumors located in lateral,dome and posterior wall were 71,23,24 respectively; 75 of them were with single and 43 were with multifocal lesions; the sizes of tumor ranged from 0.5 -4.0 cm and 39 of them were ≥3.0 cm; The procedures performed by senior and junior urologist were 53 and 65 cases,respectively.In the study,we used the 2004 WHO/ISUP and 2002 TNM classification system for grading and staging.The data were analyzed with x2 and the logistic regression test to find out the causes of under-staging in first TURBt. Results There were 13 and 105 cases with high-grade Ta and T1 (low-grade T1 44 cases,high-grade T1 61 cases) in first TURBt,respectively.The finial stages were low-grade Ta(2),high-grade Ta(6),low-grade T1 (36),highgrade T1 ( 38 ),T2 (36) and 39 cases (33.1 ％ ) were under staged ( P ＜ 0.01 ).There were 17 and 22 under-staged cases compared with the second-TUR group (60 cases) and PC/RC groups (58 cases),respectively.The reasons of under-staging were related to tissue morphology changes (63 cases) and the absence of the detrusor muscle (56 cases) in specimens collected during the first TURBt.Multivariate analyses revealed that large tumors ( ≥3 cm),and lateral/dome/anterior wall tumors were independent risk factors to the absence of the detrusor muscle in the resected specimens with OR (95％ CI):3.766 ( 1.263 -11.225 ),and OR (95 ％ CI):5.951 (2.186 - 16.203 ),respectively.While surgery performed by senior surgeons was the protective factor to the presence of detrusor muscle,OR (95％ CI):0.274 (0.127 -0.593). Conclusions It is difficult for the first TURBt to completely avoid under-staging.The causes were related to tissues morphology changes and the absence of underlying detrusor muscle in specimens collected during the first TURBT procedure.Tissues morphology changes and the absence of detrusor muscle are related to the tumors location and size.A senior urologist and second-TUR can improve the under-staging.

Objective To Investigate the clinical relationship between the interstitial cystitis and female hormone imbalance.Methods A retrospective analysis of 58 cases of IC female patients in our hospital from January 2006 to April 2012.The patients' age ranged from 21 to 76 years,and the average age was 40.2±12.4 years old.The suffering time of disease ranged from 9 to 120 months,and the average duration was 64.3±55.7 months.At the 1st,12th,22th day of the menstrual cycle,the O'Leary-Sant and PUF questionnaires were used to score,in order to analyze the relationship between IC symptoms and the menstrual cycle.The symptoms scores between postmenopausal patients and No menopause patients were compared.At the same time,the medical records and follow-ups were reviewed for all patients.Results 51 cases of IC premenopausal female patients suffered more urinary frequency,urgency,and bladder pain during the menstrual period.The proportion respectively were 54.9 ％ (28/51),60.8％ (31/51).The O'Leary-Sant scores of the 1st day were more significant difference than the12th and the 22th day (P＜0.05),but there was no significant difference between the 12th day and the 22th day (P＞0.05).The PUF scores of the 1st day were significant different than the 12th and the 22th day (P＜0.05),but there was no significant difference between the 12th day and the 22th day (P＞0.05).The average scores of O'Leary-Sant and PUF in 7 postmenopausal patients were statistically significant lower than non-menopausal patients (P＜0.05).The incidence of 58 cases with uterine fibroids,breast hyperplasia,ovarian cysts,endometriosis (48.3％,41.4％,5.2％,13.8％) were higher than the average persons (P=0.001,0.460,0.001,0.048),which were significantly higher than the incidence of the general population (30.0％,40.0％,0.3％,7.0％) excepting breast hyperplasia.Conclusions The symptoms of urinary frequency,urgency,and bladder pain in IC patients were more serious during the menstrual period than the other periods.The symptoms of the non-postmenopausal patients were more serious than the postmenopausal patients.The incidence of IC patients associated with hormone imbalance diseases was higher than the general persons,indicating that the fluctuation of female hormone level was likely to be one cause of IC onset.

Objective To explore the correlation between anxiety,depression and the symptoms of interstitial cystitis/bladder pain syndrome (IC/PBS) patients,improving the psychological knowledge of IC/PBS patients,providing theoretical basis for psychological intervention.Methods During November 2009 to October 2011,54 IC/PBS patients including 42 women and 12 men patients were treated,with mean age of (41.0±12.4) years and mean course of the disease of (63.0±59.2) months.O'Leary-Sant questionnaire was used for IC/PBS symptoms assessment,and Visual Analogue Scale (VAS) was used to evaluate pain associated with bladder,Self-rating Anxiety Scale (SAS) was used for anxiety assessment,and Beck Depression Inventory Ⅱ (BDI-Ⅱ) was used for depression assessment.The relationship between depression,anxiety and the symptoms of IC/PBS patients was evaluated.Results Of the 54 IC/PBS patients,mean ICSI score was (15.0±1.84) points,mean ICPI score was (8.0±2.6) points,mean O'Leary-Sant questionnaire score was (24.0±3.9) points,mean VAS score was (7.0± 1.0) points,mean anxiety score was (52.0± 7.2) points,with 35 cases (64.8％) suffering from anxiety symptoms.Mean depression symptoms score was (16.0±4.5) points,with 41 cases (75.9％) suffering from depressive symptoms.The degree of anxiety and depression were associated with education level,the sleep quality and monthly income of IC/PBS patients.Anxiety and depression had no definite correlation with marital status and working conditions.Anxiety and depression were closely related (proportion) with the symptoms (frequency,urgency,pain or discomfortrelated to bladder) of IC/PBS patients.Conclusions Anxiety and depression are common in patients with IC/PBS,and they are related to symptom severity.In order to improve the quality of life,much attention must be paid to psychological condition assessment and treatment of IC/PBS patients.

Objective To explore the predictive value of microvessel density(MVD)and blood vessel invasion(BVI)in hepatic metastasis from early-stage rectal cancer.Methods MVD and BVI in the tumor tissue from 380 patients with stage I and II rectal cancer was determined by immunohistochemical S-P method with anti-CDIOS antibody and anti-CD34 antibody,respectively.Multinomial logistic regression was performed to analyze the predictive value of MVD and BVI in hepatic metastasis from early-stage rectal cancer.Results CD105 was expressed in newborn blood vessels,not in normal blood veseels.in the rectal cancer tissue.MVD was correlated with histological type and infiltration depth(P＜0.05).Besides histological type and infiltration depth,BVI was also correlated with histological grade.Multivariate analysis revealed that histological type,tumor infiltration depth,BVI,adjuvant therapy,and MDV were independent predictors of hepatic metastasis from rectal cancer.The risk of hepatic metastasis in patients with postive expression of either MVD or BVI or both were significant higher than that in patients with low expression of MVD and those without BVI expression[hazard ratio(95%CI),4.210(2.182-11.214)].Conclusion BVI and MVD are independent predictors of hepatic metastasis from stage I and II rectal cancer.Combined detection of MVD and BVI may help to predict the clinical outcome of patients with early-stage rectal cancer.

Objective To detect the clinical factors related with liver metastasis in young patients with rectal cancer.Methods Three hundred and fifty young patients with rectal cancer were collected to set up the database.Single and multi-factor Logistic regression was applied to indicate the independent factors relating to liver metastasis.The regression equation to predict probability of liver metastasis from rectal cancer was established.Results Liver metastasis was 120 cases (34.3%).Single-factor analysis revealed that patho-organization type,pathologytype,infiltration extent,blood vessel invasion (BVI),TNM stage,operation character,the preoperative level of carcino-embryonic antigen,histology grading were related with liver metastasis.Multi-factor analysis revealed that only BVI (P=0.001),TNM stage (P=0.001),pathoorganization type (P=0.005),the preoperative level of CEA (P=0.008) and operation character (P=0.032) were independent factors to predict probability of liver metastasis.Conclusions Rectal cancer of young patients who being with BVI,advanced phase,high preoperative level of CEA,radical operation or poor differentiation degree,are apt to develop liver metastasis.They should be given further individualized intensive adjuvant treatment.