Quality of life following urinary diversion: Orthotopic ileal neobladder versus ileal conduit. A multicentre study among long-term, female bladder cancer survivors.

INTRODUCTION: Women undergoing radical cystectomy (RC) followed by urinary diversion (UD) for bladder cancer experience a substantial reduction in health-related quality of life (HRQOL). At present, studies comparing long-term QOL outcomes for different UD methods, needed to inform evidence-based choices of bladder reconstruction for female patients, are sparse. Our objective was to compare two common UD methods in terms of their HRQOL outcomes in women. MATERIALS AND METHODS: We retrospectively analysed HRQOL in 73 consecutive female bladder cancer patients having undergone orthotopic ileal neobladder (IONB, N = 24) or ileal conduit (IC, N = 49) following RC between 2007 and 2013 in six Italian academic urological centres. Patients had no evidence of tumour recurrence and were actively followed up. Validated Italian versions of the European Organisation for Research and Treatment of Cancer (EORTC) generic (QLQ-C30) and bladder-cancer-specific (QLQ-BLM30) questionnaires were used to evaluate HRQOL. RESULTS: Patients in the IONB group were significantly younger than those in the IC group (median age: 67 and 73 years, respectively, p = 0.02). Barring that, the two groups did not present statistically significant differences in median length of follow-up (43 vs 54 months), pathological stage, grading of the neoplasm, or adjuvant chemo - or radiotherapy. No significant differences in QOL were found between the groups, with the exception of financial difficulties, affecting IONB patients significantly more than IC patients (mean score on a scale of 0-100: 33.3 ±â€¯29.5 vs 18.4 ±â€¯19.3, respectively; p = 0.05). CONCLUSION: Financial difficulties was the only HRQOL item to differ between the two UD groups.

Health-Related Quality of Life after Radical Cystectomy for Bladder Cancer in Elderly Patients with Ileal Orthotopic Neobladder or Ileal Conduit: Results from a Multicentre Cross-Sectional Study Using Validated Questionnaires.

OBJECTIVE: To evaluate health-related quality of life (HR-QoL) outcomes in elderly patients with different type of urinary diversion (UD), ileal conduit (IC) and ileal orthotopic neobladder (IONB), after radical cystectomy (RC) for bladder cancer, by using validated self-reported cancer-specific instruments. PATIENTS AND METHODS: We retrospectively reviewed 77 patients who received an IC or an IONB after RC. HR-QoL was assessed with specific and validated disease questionnaires, administered at last follow-up. RESULT: At univariate analysis, at a mean follow-up of 60.91 ± 5.63 months, IONB results were favourable with regard to the following HR-QoL aspects: nausea and vomiting (p = 0.045), pain (p = 0.049), appetite loss (p = 0.03), constipation (p = 0.000), financial impact (p = 0.012) and cognitive functioning (p = 0.000). This last functional aspect was significantly worse in female patients (p = 0.029). Emotional functioning was significantly better in patients without long-term complications (p = 0.016). At multivariate analysis, male gender and IONB were independent predictors of better cognitive functioning, while long-term complications negatively affected emotional functioning. CONCLUSIONS: Obtained results suggest that an IONB can also be suitable for elderly patients compared with an IC with few and selected advantages in favour of the former UD. Preoperative patient's selection, counselling, education and active participation in the decision-making process lead to a more suitable choice of treatment.

Quality of Life in Patients with Bladder Cancer Undergoing Ileal Conduit: A Comparison of Women Versus Men.

BACKGROUND/AIM: Studies comparing health-related quality of life (HR-QoL) between patients who underwent radical cystectomy (RC) and those who underwent a different form of urinary diversion has not reached yet univocal and reliable conclusions. The aim of our study was to evaluate bladder-specific long-term HR-QoL after radical cystectomy and ileal conduit. PATIENTS AND METHODS: A multicenter study was carried out on 145 consecutive patients (112 males and 33 females) undergoing RC and ileal conduit (IC). HR-QoL assessment was conducted using Italian versions of European Organisation for Research and Treatment of Cancer QLQ-C30 and EORTC BLM-30 questionnaires. RESULTS: Our data showed that women who underwent IC presented greater problems than men in cognitive functioning (mean score±SD: 77.3±27.9 vs. 87.8±18.6) as well in future perspective (score: 42.4±34.4 vs. 21.9±24.6). Nevertheless, men undergoing IC had more problems in sexual functioning than women (score: 23.3±24.5 vs. 7.0±20.3) (all p<0.05). CONCLUSION: In our series, female patients presented a greater burden than male patients in cognitive functioning as well in future perspective, but lower concerns with regard to sexual function.

Is Health-Related Quality of Life after Radical Cystectomy Using Validated Questionnaires Really Better in Patients with Ileal Orthotopic Neobladder Compared to Ileal Conduit: A Meta-Analysis of Retrospective Comparative Studies.

INTRODUCTION: From the most recent systematic revision of the literature, an orthotopic neobladder would seem to show marginally better health related quality of life (HR-QoL) scores compared with an ileal conduit. The aim of this study was to review all relevant published studies about the comparison between ileal orthotopic neobladder (IONB) and ileal conduit using validated HR-QoL questionnaires. MATERIALS AND METHODS: Studies were identified by searching multiple literature databases. Data were synthesized using meta-analytic methods conformed to the PRISMA statement. RESULTS: The literature search identified 10 papers; pooled effect sizes of combined quality of life outcomes for ileal conduit versus IONB showed a significantly better HR-QoL in patients with IONB (Hedges' g = 0.278; p = 0.000);. The present study has an important limitation due to the type of the analyzed comparative studies, all retrospective and not randomized. CONCLUSION: This meta-analysis of not-randomized, retrospective comparative studies on the impact of ileal conduit versus IONB on HR-QoL showed a significant advantage of IONB subgroups.

Health-related Quality of Life After Radical Cystectomy: A Cross-sectional Study With Matched-pair Analysis on Ileal Conduit vs Ileal Orthotopic Neobladder Diversion.

OBJECTIVE: To examine the different and health-related quality of life (HR-QoL) outcomes between ileal conduit (IC) and ileal orthotopic neobladder (IONB) in patients who underwent radical cystectomy (RC), by using validated self-reported cancer-specific instruments. PATIENTS AND METHODS: This retrospective, cross-sectional, multicenter cohort study included 148 and 171 patients with either IC or IONB. HR-QoL was evaluated with Quality of Life Core Questionnaire and bladder module (BLM)-30 European Organisation for Research and Treatment of Cancer questionnaires. Baseline HR-QoL scores were dichotomized at the median to give "good" or "poor" score profiles. A matched-pair analysis compared HR-QoL aspects between 79 IC patients and 79 IONB patients. RESULTS: At univariate analysis IONB resulted favorable for physical functioning, emotional functioning, cognitive functioning (CF), fatigue, dyspnea, appetite loss, constipation (CO), and abdominal bloating flatulence (AB). At multivariate analyses, IONB showed better scores for emotional functioning (85 vs 79, P = .023), CF (93 vs 85, P <.001), CO (16 vs 31, P <.001), and AB (12 vs 25, P <.001). A significant worsening of sexual and urinary function was observed for IONB patients in the long-term. At matched-pair analysis, global health status was similar (65 vs 62, P = .385). Significantly better scores were observed in the IONB group for the following items: CF (P = .007), fatigue (P = .003), pain (P = .019), dyspnea (P = .016), CO (P = .001), and AB (P = .00). CONCLUSION: IONB and IC after RC were similar in terms of global health status. IONB provides better results in some aspects of HR-QoL related to bowel function, but a worsening of urinary and sexual functions. Further randomized controlled trials are needed to confirm these data.

Desmopressin in adult urological disease: clinical evidences.

Desmopressin is a synthetic analogue of arginine vasopressin, commercially available since 1974. Desmopressin is proven effective for the treatment primary nocturnal enuresis and polyuria. It has been considered by several investigators for the treatment of nocturia with positive results and is now an established treatment for this indication. In this review, we assessed the available clinical data on desmopressin in adult urological disease.

Quality of Life Assessment With Orthotopic Ileal Neobladder Reconstruction After Radical Cystectomy: Results From a Prospective Italian Multicenter Observational Study.

OBJECTIVE: To assess health-related quality of life (HRQoL) parameters in patients who received radical cystectomy (RC) with ileal orthotopic neobladder (IONB) reconstruction and to identify clinic-pathologic predictors of HRQoL. PATIENTS AND METHODS: From January 2010 to December 2013, a multicenter, retrospective on 174 RC-IONB patients was carried out. All patients completed the following questionnaires: the European Organization for Research and Treatment of Cancer (EORTC) generic (QLQ-C30) and bladder cancer-specific instruments (QLQ-BLM30) and the IONB-Patient Reported Outcome (IONB-PRO). Univariate and multivariate analyses were computed to identify clinic-pathologic predictors of HRQoL. RESULTS: Median age was 66 years (range, 31-83), and 91.4% of patients were men. Median follow-up period was 37 months (range, 3-247). The EORTC QLQ-C30 revealed that age >65 years, absence of urinary incontinence, and absence of peripheral vascular disease were independent predictors of deteriorated body image. A follow-up > 36 months and the presence of urinary incontinence were independent predictors of worsened urinary symptoms, whereas the absence of urinary incontinence was an independent predictor of a worsened body image according to EORTC QLQ-BLM30 results. A follow-up >36 months and the absence of urinary incontinence were independent predictors of better functioning in terms of relational life, emotional life, and fatigue as revealed by the IONB-PRO. CONCLUSION: Age, presence of urinary incontinence, length of follow-up, and comorbidity status may influence postoperative HRQoL and should all be taken into account when counseling RC-IONB patients.

Development of a questionnaire specifically for patients with Ileal Orthotopic Neobladder (IONB).

BACKGROUND: The ileal orthotopic neobladder (IONB) is often used in patients undergoing radical cystectomy. The IONB allows to void avoiding the disadvantages of the external urinary diversion.In IONB patients the quality of life (QoL) appears compromised by the need to urinate voluntarily. The patients need to wake up at night interrupting the sleep-wake rhythm with consequences on social and emotional life.At present the QoL in IONB patients is evaluated by generic questionnaires. These are useful when IONB patients are compared with patients with different urinary diversions but they are less effective when only IONB patients are evaluated. To address this problem a specific questionnaire-the IONB-PRO-was developed. METHODS: A) Based on a conceptual framework, narrative-based interviews were conducted on 35 IONB patients. A basic pool of 43 items was produced and organized throughout two clinical and four QoL dimensions. An additional 15 IONB patients were interviewed for face validity testing.B) Psychometric testing was conducted on 145 IONB patients. Both classic test strategy and Rasch analysis were applied. Psychometric properties of the resulting scales were comparatively tested against other QoL-validated scales. RESULTS: The IONB-PRO questionnaire includes two sections: one on the QoL and a second section on the capability of the patient to manage the IONB. For evaluation of the QoL, three versions were delivered: 1) a basic 23-item QoL version (3 domains 23-items; alpha 0.86÷ 9.69), 2) a short-form 12-item QoL scale (alpha = 0.947), and 3) a short-form 15-item Rasch QoL scale (alpha = 0.967). Correlations of the long version scales with the corresponding dimensions of the EORTC-QLQ C30 and the EORTC-BLM30 were significant. The short forms exhibited significant correlations with the global health dimension of the EORTC-QLQ and with the urinary subscales of the EORTC-BLM30. The effect size was approximately 1.00 between patients at the 1-year follow-up period and those with 3, 5, and > 5-year follow-up periods for all scales. No relevant differences were observed between the 12-item short-form and the Rasch scale. CONCLUSIONS: The IONB-PRO long and short-forms demonstrated a high level of internal consistency and reliability with an excellent discriminanting validity.

Behavioural profile and human adaptation of survivors after radical cystectomy and ileal conduit.

BACKGROUND: There is a lack of good data in the literature evaluating the Health-Related Quality of Life (HR- QoL) in patients with urinary diversions. The aim of this study was to examine the changes in expectation and needs in terms of human adaptation and behavioural profiles in patients with ileal conduit (IC) after radical cystectomy (RC) for bladder cancer (BC). MATERIALS AND METHODS: A qualitative, multicenter cross-sectional study using a "narrative based" approach was planned. We proceed with a sampling reasoned choice (purposive), selecting groups of patients with follow-up from one up to more than 7 years after surgery. Data were collected through individual interviews. RESULTS: Thirty patients participated in the study. The processing of the interviews allowed us to identify 2 major profiles: positive and negative. Patients with a positive profile resumed normal daily activities with no or limited restrictions both on the personal and the social level. This profile reflects a good HR-QoL. The negative profile reflects the patients for whom the ostomy has meant a worsening of HR-QoL. A positive profile was statistically more frequent in older patients (p = 0.023), with a longer follow-up (p = 0.042) and less complications rates (p = 0.0002). According to the length of follow-up and the occurrence of complitations, we identified further 5 intermediate profiles. CONCLUSIONS: Patients' satisfaction is related to the degree of adaptation to their new life with an urinary stoma and its correct management. Live "with urinary diversion" represents a new phase of life and not a deterioration.

Prognostic role of tumour multifocality in renal cell carcinoma.

UNLABELLED: What's known on the subject? and What does the study add? In RCC about 5% of the patients presented multifocal disease. Prevalence of tumour multifocality was associated with a higher percentage of symptomatic RCC, higher pathological TNM stages, higher tumour grade and higher prevalence of tumour necrosis. Although in univariable analysis multifocal tumours had lower probability of CSS, tumour multifocality did not retain an independent predictive role in multivariable analysis. Patient age at surgery, gender, mode of presentation, pathological N stage and presence of metastases were independent predictors of CSS in multivariable analyses. OBJECTIVE: • To evaluate the prevalence and the prognostic role of multifocality in a large multi-institutional series of patients who underwent radical or partial nephrectomy for renal cell carcinoma (RCC). METHODS: • We retrospectively collected the data of 5378 patients who were surgically treated for RCC in 16 academic centres involved in the Surveillance and Treatment Update Renal Neoplasms (SATURN) project. • Univariable and multivariable Cox regression models addressed time to cancer-specific survival (CSS) after surgery. RESULTS: • Tumour multifocality was identified in 249 patients (5%). The median follow-up of the whole cohort was 42 months. At last follow-up, 786 (14.6%) were dead of cancer and 336 (6.2%) had experienced non-cancer-related death. • The 5- and 10-year CSS estimates were 84.1% and 77.3%, respectively, in patients with monofocal RCC, compared with 71.1% and 63.6%, respectively, in patients with multifocal disease (P < 0.001). • In univariable Cox regression analysis, tumour multifocality was significantly associated with CSS (hazard ratio [HR]= 1.83; P < 0.001). • On multivariate Cox regression analysis adjusted for the effects of other covariates, tumour multifocality did not retain an independent predictive value (HR = 1.24; P= 0.291). CONCLUSIONS: • In the present multi-institutional collaboration, about 5% of the patients presented multifocal RCC. • The presence of multifocal cancer was associated with some unfavourable clinical and pathological features. • Although in univariable analysis multifocal tumours had lower CSS probabilities, tumour multifocality did not retain an independent predictive role in multivariable analysis, once adjusted for the effect of the other clinical and pathological covariates.

Porcine small intestinal submucosa implant in pubovaginal sling procedure on 48 consecutive patients: long-term results.

OBJECTIVE: The long-term efficacy of pubovaginal sling (PVS) procedure with porcine small intestinal submucosa (SIS) implant was retrospectively assessed. STUDY DESIGN: Forty-eight patients with SUI underwent a pubovaginal sling with SIS. Patient evaluation included history, physical examination with stress test and prolapse assessment by Baden-Walker classification, routine laboratory tests, 24h-pad test, and multichannel urodynamic measurement. Postoperatively the patients were classified as cured, improved and unchanged or failed. A King's Health Questionnaire (KHQ) was performed to verify post-operatively the quality of life of these patients. RESULTS: At median follow-up of 76 months 33/48 (69%) were cured, 6/48 (12%) were improved while 9/48 (19%) were failed or unchanged. No urinary retention or dyspareunia was reported and no vaginal erosion or adverse tissue reaction was detected. The descriptive statistics of KHQ scores by dimensions was done in 32/48 patients (67%). Failed or unchanged patients showed worse scores than cured and improved patients in all KHQ dimensions showing an overall overlapping between objective and subjective results although these findings are weakened due to the lack of a preoperative evaluation of QoL. CONCLUSIONS: PVS procedure using SIS cannot offer a durable option for the treatment of SUI as reported by the current mininvasive techniques.

The current role of contrast-enhanced ultrasound (CEUS) imaging in the evaluation of renal pathology.

BACKGROUND: By using a microbubble contrast agent and contrast-specific imaging software, the contrast-enhanced ultrasound (CEUS) is able to depict the micro and macrocirculation of the target organ. METHODS: A review of the peer reviewed literature was done regarding the current role of ultrasound CEUS imaging in the evaluation of renal pathology with reference to the diagnosis of renal ischaemia, in the characterization of complex cystic lesions and in those with equivocal enhancement at CT. RESULTS: CEUS provides information on tissue perfusion and may play a role in kidney mass characterization similar to the role of contrast-enhanced CT and MRI. In this context, the characterization of cystic lesions is probably the most consolidated field of application of contrast agents on kidney ultrasound imaging. Finally, CEUS provides a good alternative to CT, especially in patients with contraindications to iodinated contrast agents. CONCLUSIONS: The usefulness of CEUS in these applications is confirmed by extensive literature production and this article focuses on the potential clinical applications of recent advances in CEUS technology in urology.

BCG prophylaxis in bladder cancer produces activation of recruited neutrophils.

INTRODUCTION: Bacillus Calmette-Guerin (BCG) is used to treat high risk superficial bladder cancer, but its anti-tumor effect remains incompletely defined. Recently a role for polymophonuclear (PMN) neutrophils has been suggested. To investigate the role of granulocytes, we monitored the activation state of these cells in the urine of BCG-treated patients. MATERIALS AND METHODS: Ten patients with stage T1, grade 3 (T1G3) transitional cell carcinoma received an 8 week course of BCG after undergoing transurethral resection of the bladder. Cytological and enzymatic analyses of urine samples collected before and 2 hours after the physiological expulsion of BCG were performed. The activation state of urine granulocytes and the presence of activating factors within the urine samples were monitored. RESULTS: BCG immunotherapy stimulated, through soluble factors, the activation of PMN neutrophils, which transmigrated into the bladder, and the degree of activation of the PMN neutrophils was related directly to the number of epithelial cells detached from the urothelial layer. CONCLUSIONS: This study suggests that PMN neutrophils can participate in reducing the recurrence of bladder cancer by promoting urothelial cell turnover proportionally to their degree of activation. Our results provide further evidence to support the role of PMN neutrophils in BCG immunotherapy.

Urinary levels of glycosaminoglycans in patients with idiopathic detrusor overactivity.

INTRODUCTION AND HYPOTHESIS: We assessed whether urinary excretion of glycosaminoglycans (GAGs) may be affected by a condition of detrusor overactivity (DO). MATERIALS AND METHODS: We evaluated 24-h urinary excretion of GAGs in 25 patients (mean age 63.81 years) with DO and in 14 healthy controls (mean age 65.75 years). No patients or controls had urinary tract infection. The excretion of GAGs was measured on the basis of total urine volume and normalized to creatinine concentration. Student's test was employed to check between the urinary excretion of GAGs in the two groups. RESULTS: The urinary content of GAGs discovered in control group was significantly higher than that in pathological group for the ratio GAGs/creatinine concentration. CONCLUSIONS: The low content of GAGs might be due to relative ischemia of the bladder wall epithelial layer following a chronically increased contractile activity of the detrusor even if further studies are needed to confirm this finding.

Transvaginal bone-anchored sling procedure: 4 years of follow-up on more than 200 consecutive patients.

OBJECTIVES: To report intermediate-term results with reference to quality of life (QoL) and complications in 232 consecutive patients with stress urinary incontinence (SUI) treated with a transvaginal pubic bone-anchored sling (BAS). METHODS: We retrospectively reviewed 232 consecutive patients affected by SUI who underwent BAS using biologic and synthetic materials, with a mean follow-up of 50 months. Stress urinary incontinence was due to a defect of anatomic support and to intrinsic sphincteric deficiency in 220 patients and 12 patients, respectively. In all cases QoL was evaluated by Korman questionnaire. RESULTS: The questionnaire outcomes of 232 patients were evaluated. One hundred seventy-three patients (74.5%) reported being cured, 21 patients (9.0%) were unchanged, and 38 patients (16.5%) failed. One hundred seventy-seven patients (76.2%) were satisfied with the BAS procedure, and 38 (16.3%) would perhaps still choose BAS implantation, whereas 17 patients (7.5%) would not repeat this choice again. Sixty patients (25.8%) reported pelvic pain that was occasional in 47 patients (20.2%) and recurrent in 13 patients (5.6%). Twenty-five patients (14.1%) reported dyspareunia that was occasional in 17 patients (10.7%) and recurrent in 8 patients (3.4%). CONCLUSIONS: The BAS procedure shows an overall acceptable subjective cure rate, even if in the presence of a high percentage of complications. In this setting the BAS procedure cannot be proposed for correction of SUI.

The role of granulocytes following intravesical BCG prophylaxis.

OBJECTIVES: The antitumour effect of bacillus Calmette-Guérin (BCG) still remains relatively undefined. Most investigations on its mechanism of action have focused on mononuclear cells; little consideration has been given to granulocytes. We analysed urine of patients with bladder cancer during 8 wk of intravesical BCG prophylaxis. The number of polymorphonuclear neutrophils (PMNs) and urothelial cells (UCs) was evaluated. We examined the in vitro response of the T24 UC line to human PMNs after BCG treatment. METHODS: Seventeen patients were enrolled in the study. Cytologic analyses were performed on urine samples collected before each BCG instillation and after 2 h from the first voided urine after BCG instillation. Elastase activity was determined on these samples to evaluate PMN activation. PMN-induced damage was measured on the T24 cell line treated with BCG. RESULTS: After BCG treatment, a large number of PMNs transmigrated through the urothelium and PMNs adherent to detached UCs were found. One patient, who did not respond with significant PMN transmigration, experienced recurrent disease. The number of eosinophils that transmigrated was low, with the exception of three patients with recurrent disease. In vitro, PMNs adhered to BCG-primed T24 cells and damaged the monolayer. CONCLUSIONS: The results agree with recent evidence that PMNs may play an important role in the antitumour action of BCG during the BCG induction period. This role is probably nonspecific because both normal UCs in vivo and tumour cells in vitro appeared to be injured. As suggested by results obtained from a limited number of patients, a high number of eosinophils in the urine may indicate therapy failure.

Application of ultrasound contrast agents for the characterization of female urethral vascularization in healthy pre- and postmenopausal volunteers: preliminary report.

OBJECTIVES: Vascularization of the female urethra is an important factor contributing to the sealing effect responsible for the normal urethral closing system. The aim of this study was to assess whether contrast enhanced ultrasonography can be used to evaluate changes in urethral vascularization between pre- and postmenopausal women. METHODS: We studied the vascularization of female urethra in 11 healthy premenopausal females during the midfollicular phase of the menstrual cycle and 10 healthy postmenopausal volunteers using ultrasound contrast agents with a 2-5 MHz curved-array transducer by a translabial approach. Reperfusion curves were analyzed by a blinded investigator. Ultrasound contrast agents were measured with specifically designed software, and results were evaluated using the Mann-Whitney U-test. RESULTS: The data suggest that the enhancement characteristics of the urethra were different in pre- and postmenopausal women and that the percent of blood volume and blood flow decreased with age. No changes were observed between pre- and postmenopausal women regarding the velocity of blood flow. CONCLUSIONS: The study of female urethra vascularization by ultrasound contrast agents is safe, feasible, and noninvasive.

Detection of focal renal perfusion defects in rabbits after sulphur hexafluoride-filled microbubble injection at low transmission power ultrasound insonation.

The aim of this study was to assess the feasibility of contrast-enhanced ultrasound (US) at low transmission power insonation for diagnosis of focal renal perfusion defects (RPDs) in rabbits. In seven adult New Zealand White rabbits focal RPDs were induced by polyvinyl alcohol embolizing particles (150-250 microm in diameter) injected into the abdominal aorta. Three other rabbits that were not subjected to embolization were considered as controls. Both kidneys were insonated at baseline and after injection of sulphur hexafluoride-filled microbubbles at low transmission power (mechanical index 0.09-0.12). One sonologist assessed on-site RPD dimensions and conspicuity (visual score 0-4). Digital cine-clips were also reviewed off-site by two other independent readers, blinded, who assigned a confidence level (grades 1-5) for the RPD diagnosis. At on-site analysis RPDs appeared as focal areas of absent or diminished enhancement with a median visual conspicuity score=4. At off-site analysis RPDs >6 mm in diameter were identified at contrast-enhanced US, and the confidence in RPD diagnosis improved significantly (P<0.05) after microbubble injection (area under receiver operating characteristic curve 0.615 vs 0.972 by reader 1; 0.720 vs 0.953 by reader 2). Contrast-enhanced US at low transmission power insonation effectively identified RPDs with diameters >6 mm in rabbits.

The simultaneous use of telomerase, cytokeratin 20 and CD4 for bladder cancer detection in urine.

OBJECTIVE: Because of the low sensitivity of urinary cytological diagnosis of urinary bladder carcinoma, new molecular diagnostic methods have been proposed. We decided to verify the expression of telomerase mRNA coding for the catalytic component (hTRT), cytokeratin 20 (CK20) and CD4 antigen mRNAs in urine as possible diagnostic tool. METHODS: Evaluation of hTRT, CK20, CD4 mRNAs was performed in 50 ml of naturally voided urine of 205 patients of which 153 with bladder cancer (Tis, n = 11; TaGx, n = 4; TaG1, n = 25; TaG2, n = 26; TaG3, n = 8; T1G1, n = 16; T1G2, n = 17; T1G3, n = 20; T2G2, n = 6; T2G3, n = 13; T3G3, n = 7) and 52 controls. A quantitative expression of hTRT at mRNA level versus TRAP (telomeric repeat amplification protocol) assay was performed in 20 patients and 14 controls. The expression of RT-PCR for hTRT, CK20, CD4 versus urinary cytology was analysed in 44 patients with bladder cancer. Evaluating the three molecular markers together, the result was considered correct when at least two of the markers were positive, suspected when only one marker was positive and negative for diagnosis of tumour when all markers were negative. The performance of the diagnostic model resulted from the logistic analysis evaluated with receiver operating characteristics (ROC) curve analysis. RESULTS: The sensitivity detected for each tumour marker was as follows: for hTRT 90.8%, for CK20 84.3% and for CD4 was 64.7%, while the specificity was 94.2% for CD4 and 78.8% for both hTRT and CK20. When a simultaneous evaluation of the three tumour markers was considered, 88.2% of the diagnoses were correct, 11.8% were suspected for tumour and none were mistaken. When compared with cytology, the simultaneous use of the three markers allowed reaching a correct diagnosis in 88% of the cases in comparison to 25% by urinary cytology. The sensitivity in the detection of bladder cancer was higher for hTRT at mRNA level in comparison with the enzymatic activity detection with TRAP (90% vs. 35%) while the specificity for both markers resulted very high (100%). CONCLUSIONS: These data show that in the future the diagnostic improvement of urine based molecular markers for the detection of bladder cancer in the urine could improve the sensitivity of urinary cytology reducing the need of a cystoscopy.

The application of ultrasound contrast agents in the characterization of renal tumors.

The aim of this article is to describe the current ultrasound (US) contrast agents employed in the characterization of renal tumors and to report our experience in the use of a contrast-specific ultrasound technique pulse inversion harmonic imaging (PIHI).A total of 23 renal masses were prospectively evaluated by conventional US, CDUS, PIHI and finally by helical-CT (HCT). The study was performed using a wideband convex array 2-5 MHz transducer and a US digital apparatus . PIHI scanning of each renal mass was performed before and after the injection of Levovist. To reach a definitive diagnosis HCT and/or histological findings were considered as the reference procedures. Eleven solid renal cell carcinomas (RCCs), one embryonal metanephric adenoma (EMA), seven angiomyolipomas (AMLs), and four cystic RCCs were analyzed. Solid RCCs revealed a higher contrast enhancement than AMLs with a typical pattern on conventional US. The EMA and AML with an atypical pattern revealed intense contrast enhancement during the arterial phase, progressively decreasing during the delayed phase. Cystic RCCs showed intense contrast enhancement on the peripheral thick wall during the arterial phase decreasing during the delayed phase. PIHI with Levovist may differentiate solid RCCs from AMLs with no hypervascular pattern while solid RCCs show a higher intensity of contrast enhancement than hypervascular AML.