Angelo Naselli

A Randomized Prospective Trial to Assess the Impact of Transurethral Resection in Narrow Band Imaging Modality on Non–Muscle-Invasive Bladder Cancer Recurrence

BACKGROUND Narrow band imaging (NBI) is an optical enhancement technology that filters white light into two bandwidths of illumination centered on 415nm (blue) and 540nm (green). NBI cystoscopy can increase bladder cancer (BCa) visualization and detection at the time of transurethral resection (TUR). NBI may therefore reduce subsequent relapse following TUR. OBJECTIVE Assess the impact of NBI modality on 1-yr non-muscle-invasive BCa (NMIBC) recurrence risk. DESIGN, SETTING, AND PARTICIPANTS Consecutive patients with overt or suspected BCa were included in a prospective study powered to test a 10% difference in 1-yr recurrence risk in favor of cases submitted to NBI TUR. Excluding patients with muscle-invasive BCa, negative pathologic examination, or without follow-up, the study population was composed of 148 subjects randomized from August 2009 to September 2010 to NBI TUR (76 cases) or white light (WL) TUR (72 cases). INTERVENTION TUR was performed in NBI or standard WL modality. MEASUREMENTS The 1-yr recurrence risks in NBI or WL TUR groups were compared using odds ratio (OR) point and interval estimates derived from logistic regression modeling. RESULTS AND LIMITATIONS The 1-yr recurrence-risk was 25 of 76 patients (32.9%) in the NBI and 37 of 72 patients (51.4%) in the WL group (OR=0.62; p=0.0141). Simple and multiple logistic regression analyses provided similar OR points and interval estimates. CONCLUSIONS TUR performed in the NBI modality reduces the recurrence risk of NMIBC by at least 10% at 1 yr.

Narrow band imaging for detecting residual/ recurrent cancerous tissue during second transurethral resection of newly diagnosed non-muscle-invasive high-grade bladder cancer

Study Type – Diagnostic (case series)
Level of Evidence 4

Predictors of Symptomatic Lymphocele After Lymph Node Excision and Radical Prostatectomy

OBJECTIVES To identify the prognostic factors of symptomatic lymphocele. METHODS From January 2004, 359 patients underwent pelvic lymph node excision during radical prostatectomy at our center, of whom, 347 were followed up for > or = 6 months. RESULTS At a median follow-up of 14.5 months (range 6-54), 44 patients had developed a lymphocele (12.6%). In 26 patients (7.4%), it was symptomatic and required treatment. On univariate analysis, lymphocele was associated with the extension of the lymph node dissection, the number of nodes retrieved, and the presence of nodal metastasis. Patient age, year of surgery, surgeon, anticoagulant or antiplatelet oral therapy before and after the period of low-molecular-weight heparin prophylaxis, American Society of Anesthesiologists score, use of neoadjuvant hormonal therapy, preoperative prostate-specific antigen value, Gleason score, and pathologic stage were not influential. After adjusting for covariates, logistic regression analysis revealed that only the number of nodes was significantly associated with the onset of a symptomatic lymphocele. The risk of lymphocele seemed to increase linearly with the number of nodes retrieved, and the incidence of positive nodes reached a plateau when >10-13 nodes were harvested. CONCLUSIONS The benefit of more extensive nodal excision during radical prostatectomy should be weighed against the increased risk of lymphocele and its sequelae, including reintervention. In our series, no other factor, including previous anticoagulant or antiplatelet therapy, neoadjuvant hormonal therapy, and surgeon experience, influenced the incidence of symptomatic lymphocele.

Observational Multicentric Trial Performed with Doxazosin: Evaluation of Sexual Effects on Patients with Diagnosed Benign Prostatic Hyperplasia

Introduction: The aim of our study is to verify the effects of doxazosin on sexual function in patients with benign prostatic hyperplasia (BPH). Materials and Methods: We enrolled 102 patients with BPH, selected by nine Italian Urology Departments. Patients were evaluated with the International Prostatic Symptom Score (I-PSS) and divided into two groups: those with intact sexual activity and those with erectile dysfunction. According to the International Index of Erectile Function (IIEF), the second cohort was divided into three subgroups on the basis of the degree of erectile dysfunction degree (severe, moderate or mild). All patients underwent 3 months of therapy with doxazosin. The effects of doxazosin on sexual activity and on voiding symptoms were monitored at 1, 2 and 3 months with IIEF and I-PSS scales. Results: Eighty-six of the 102 initial patients (84%) were monitored until follow-up was completed. The follow-up at 1 month showed a significant decrease in the I-PSS (p < 0.0001) from 20.2 ± 2.01 (base visit) to 13.1 ± 2.21. The mean IIEF was 19.24 ± 6.59 at baseline and 1 month later the score reached 21.44 ± 5.40, thus showing a statistically significant increase (p = 0.0177). This is more evident in the group presenting with severe to moderate erectile dysfunction. I-PSS and IIEF do not significantly change at the 2- and 3-month follow-ups. Conclusions: The use of doxazosin improved sexual function in patients with BPH.

Potency preserving cystectomy with intrafascial prostatectomy for high risk superficial bladder cancer.

PURPOSE We report the oncological and functional results of potency sparing cystectomy with intrafascial prostatectomy for high risk, superficial bladder cancer. MATERIALS AND METHODS A total of 37 patients underwent potency sparing cystectomy and orthotopic urinary substitution from 2001 to 2005. Inclusion criteria were age younger than 70 years, Charlson comorbidity index less than 2, high risk superficial bladder cancer, prostate specific antigen less than 4 ng/ml, free-to-total PSA ratio greater than 20% and normal digital rectal examination. RESULTS Median patient age was 58 years (range 52 to 66). Median followup was 35 months (range 24 to 71). One patient died of disease progression and 1 died of an unrelated cause. Of the 37 patients 35 (95%) were free of tumor. Daily continence was achieved in 36 patients (97.2%) and nighttime continence was achieved in 35 (95%). Two patients (5%) needed clean intermittent catheterization. A total of 35 patients (95%) stated that they maintained erectile function, including 28 (76%) without oral drugs. A significant decrease in the median International Index of Erectile Function score from baseline was noted 2 years after surgery (25 vs 21). A total of 32 patients (86%) had an International Index of Erectile Function score of greater than 17 at 2 years after cystectomy. Median scores on the International Continence Society male short form questionnaires did not show any significant difference before and after surgery. Prostate specific antigen was lower than 0.2 ng/ml in all cases. CONCLUSIONS The main criticism about so-called sexuality sparing cystectomy has been the presence of consistent prostatic remnants. Performing intrafascial prostatectomy together with supra-ampullar cystectomy seems to warrant good functional results with while better preserving oncological safety.

En bloc transurethral resection of bladder lesions: a trick to retrieve specimens up to 4.5 cm

The present technique maintains the integrity of voluminous lesions during extraction. Pathological analysis is consequently improved and a proper evaluation of the surgical margins is also possible. Papillary lesions of up to 4.5 cm are amenable to en bloc resection and extraction, while solid lesions comply less well with the urethra and sometimes are very difficult to extract. Nevertheless, the main limitation of the technique remains that lesions originating from the bladder neck are not amenable to en bloc resection,while particular attention should be paid during resection of lesions involving the ureteric orifice to avoid ureteric stripping.

Feasibility of Transurethral Resection of Bladder Lesion Performed Entirely by Means of Narrow-Band Imaging

PURPOSE To assess the feasibility of transurethral resection (TUR) of bladder lesions performed entirely by means of a narrowband imaging (NBI) modality. PATIENTS AND METHODS Data from an ongoing prospective randomized trial (NCT01004211) were extracted. Quality outcomes of standard TUR and NBI TUR were compared. Complications were graded according to the Clavien-Dindo system. RESULTS To date, 33 and 29 subjects were randomized to standard and NBI TUR. No significant differences regarding age, sex, American Society of Anesthesiologists score, rate of multiple lesions, or lesions larger than 3 cm in the two groups were found, whereas rate of TUR for recurrent bladder cancer was greater in the NBI group. All procedures ended with complete clearance of the suspected or overt bladder tumor in the modality assigned. No death or major surgical or medical complications were registered. Overall grade I to II complications rate in the NBI and standard groups was, respectively, 8/29 (27%) and 11/33 (33%) (P = 0.831). Median surgery time was, respectively, 20 and 30 minutes in the NBI and standard group (P = 0.381). Median time to catheter removal was, respectively, 2 and 3 days in the NBI and standard groups (P = 0.288). Median time to discharge was 2 and 3 days (P = 0.173). No patient was readmitted after discharge. Muscle tissue was absent in the specimen of one patient who underwent standard TUR. CONCLUSION NBI TUR appears to be feasible. The results of the ongoing randomized trial will show whether NBI TUR is able to reduce significantly the 1-year recurrence rate of bladder tumors.

Prognostic factors of persistently detectable PSA after radical prostatectomy

Objectives:  To determine predictive factors of detectable prostate‐specific antigen (PSA) in patients submitted to radical prostatectomy (RP) and to define the prognostic role of this event.

Genetic polymorphisms of CYP17A1, vitamin D receptor and androgen receptor in Italian heredo-familial and sporadic prostate cancers.

BACKGROUND Searching for genetic and environmental factors predisposing to prostate cancer, common single-nucleotide polymorphisms in CYP17A1, CYP19A1, VDR genes, and the number of CAG repeats from AR were investigated in Italian heredo-familial prostate cancer (HFPC) patients controlled for dietary intake and life style habits. METHODS We evaluated differences between HFPC and sporadic cancers, in the pattern of common single-nucleotide polymorphisms in CYP17A1, CYP19A1, VDR genes, and the CAG repeat from AR, controlling for dietary intake and lifestyle habits in a regionwide population. Ninety-five patients with HFPC were identified and 378 sporadic prostate cancers were randomly selected as controls. Dietary intake and lifestyle habits were determined through self-administered questionnaires in all patients. Genotyping of polymorphisms for CYP17A1, CYP19A1, VDR, and the CAG repeat from AR was carried out using pyrosequencing. RESULTS HFPC cases were significantly younger than controls, whereas similar proportions of localized tumours, favourable histology, and abnormal prostate serum antigen levels (4-19 ng/ml) were detected in the two groups. A statistically evident gene-gene interaction was found: a 5-fold higher probability [odds ratio (OR)=4.83; 95% confidence interval (CI): 1.37-17.02] of HFPC was observed in the subgroup profiling VDR1 T/T genotypes coupled with VDR2 T/T genotype. Among nutrients, an increase in HFPC risk (OR=3.14; 95% CI: 1.12-8.81) was found only for zinc, when associated with the VDR2 T/T genotype. CONCLUSIONS Significant evidence for positive interactions between VDR1 and VDR2 genotypes was demonstrated, suggesting that high-risk multigenic polymorphism profiles could variously sustain HFPC tumorigenesis.

Surgery insight: advantages and disadvantages of laparoscopic radical cystectomy to treat invasive bladder cancer.

Laparoscopic radical cystectomy (LRC) is a challenging technique, but it has been proposed as an alternative to open radical cystectomy (ORC), which is currently the gold standard treatment for muscle-invasive or high-risk superficial bladder cancer. So far, approximately 200 cases treated with LRC have been reported in the peer-reviewed literature, but follow-up has generally been short (all <48 months). A shorter hospital stay and a quicker recovery of the patient seem to be the main advantages of LRC over ORC. Functional outcomes, cancer control obtained, and safety of the technique need to be confirmed by studies with larger cohorts of patients and longer follow-up than those previously reported, but an initial analysis suggests that LRC is not equivalent to ORC. Given that the majority of patients selected for LRC had lower American Society of Anesthesiologists scores and lower pathological stages than those in ORC studies, the proportion of patients with orthotopic neobladders (47%) and the proportion of disease-free patients (80%) seem to be suboptimal and, actually, those might represent the major disadvantages of LRC.