101 research outputs found
Second-look turbt: Evaluation of anatomopatological and oncologic results in a single center
Introduction: T1 bladder cancer is associated with a high risk of recurrence and progression; concomitant carcinoma in situ and/or multifocality are negative prognostic factors. Persistent disease after resection of T1 tumours has been observed in 33-55% of patients, and after resection of High-grade (HG) Ta tumour in 41,4%. It has been demonstrated that a second TURB can increase recurrence-free survival and it can make a restaging of the cancer. Patients and methods: From January 2011 to December 2016, 87 patients with superficial bladder tumor (Ta-T1), undergoing TURB and routine repeat TURB (Re-TURB) 4-6 weeks after the initial resection, were included in the study. Re-TURB was applied to the scar of the first resection and other suspicious lesions in the bladder. After the second-look, we studied the follow-up of each patient. Results: Specimens obtained during the second TURBT showed no tumor in 47 (54,02%) patients; 40 (45,98%) patients had residual cancer: 34 of them had cancer of the same stage, 6 patients of pT1 had a lower stage, and 3 had a higher stage. 5 patient underwent radical cistectomy immediatly after re-TURBT. During the first year of follow up, 15 patients had a recurrent bladder cancer; 2 of them underwent radical cistectomy. Conclusions: T1 bladder cancer is an high risk tumor, so that second-look TURBT is a valuable procedure for accurate staging of nonmuscle-invasive bladder cancer and it can guarantee a better eradicationof the neoplasm
Segmental ureterectomy vs. radical nephroureterectomy for ureteral carcinoma in patients with a preoperative glomerular filtration rate less than 90 ml/min/1.73 m2: A multicenter study
Objectives: To compare segmental ureterectomy (SU) and radical nephroureterectomy (RNU) in terms of overall survival (OS) and impact on postoperative renal function in patients treated for upper tract urothelial carcinoma (UTUC) of the ureter with preoperatively reduced estimated glomerular filtration rate (eGFR). Materials and methods: We retrospectively collected the data of consecutive patients treated for UTUC, in 6 Italian tertiary referral centers, from 2003 to 2013, and analyzed those treated with RNU or SU for ureteral cancer and with a preoperative eGFR <90 ml/min/1.73m2. The primary outcome was to compare the postoperative eGFR variation and the OS according to the surgical technique chosen. Results: Out of 521 patients with UTUC, 228 patients had preoperative reduced eGFR. Out of these patients, 93 had ureteral cancer and were included in the primary analyses \u2013 67 (72.0%) treated with RNU and 26 (28.0%) with SU. Preoperative characteristics were similar in the 2 groups. The overall median follow-up period was 26.5 months. A nonsignificant postoperative eGFR decrease of 3.0 ml/min/1.73m2 was found overall (P = 0.094), with nonsignificant difference between the 2 groups (P = 0.735). A comparable 5-year OS was calculated for RNU and SU patients (P = 0.99). Conclusions: The type of surgery (SU vs. RNU) has a low impact on postoperative renal function and OS in patients with ureteral cancer and preoperative eGFR <90 ml/min/1.73m2. The indications for kidney sparing surgery for UTUC should be based on the surgical and oncological risks in these patients
Laparoscopic Radical Prostatectomy in Patients with High-Risk Prostate Cancer: Feasibility and Safety. Results of a Multicentric Study
Introduction: In Western countries about 25% of prostate cancer (PCa) are high-risk tumors at presentation and its treatment is still a matter of debate among urologists. When a surgical approach is preferred the use of a mininvasive tecnique is still difficult due to the lack of data supporting it in literature. The aim of this study is to evaluate feasibility and safety of laparoscopic radical prostatectomy (LRP) for high-risk PCa. Materials and Methods: The study included 1114 patients with high-risk PCa submitted to LRP between 1998 and 2014. High-risk patients were defined according to D'Amico classification. We collected functional and oncological long-term outcomes and evaluated with univariate and multivariate analyses the role of predictive factors for survival and biochemical recurrence (BR). Results: Mean age at treatment was 628 years; mean follow-up was 74 +/- 50 months. We obtained an overall survival (OS) of 96.6% at a mean follow-up of 74 months (1076 patients) and a disease-free survival of 66.2% (737 patients). Age (p=0.0006), pT (p<0.0001), pN (p=0.0018), and surgical margins (p=0.0076) resulted as independent predictors for BR in multivariate analysis. pN (p=0.0025) and Gs (p=0.0003) are independent predictors for OS and cancer-specific survival in a univariate analysis; just the Gs results significant in the multivariate model. Conclusions: According to our encouraging data about oncological and functional outcomes we believe that radical prostatectomy represents an effective treatment for patients with high-risk PCa and that laparoscopy is a safe approach offering a mini-invasive alternative to open surgery
Carbon-cryogel hierarchical composites as effective and scalable filters for removal of trace organic pollutants from water
Effective technologies are required to remove organic micropollutants from large fluid volumes to overcome present and future challenges in water and effluent treatment. A novel hierarchical composite filter material for rapid and effective removal of polar organic contaminants from water was developed. The composite is fabricated from phenolic resin-derived carbon microbeads with controllable porous structure and specific surface area embedded in a monolithic, flow permeable, poly(vinyl alcohol) cryogel. The bead-embedded monolithic composite filter retains the bulk of the high adsorptive capacity of the carbon microbeads while improving pore diffusion rates of organic pollutants. Water spiked with organic contaminants, both at environmentally relevant concentrations and at high levels of contamination, was used to determine the purification limits of the filter. Flow through tests using water spiked with the pesticides atrazine (32 mg/L) and malathion (16 mg/L) indicated maximum adsorptive capacities of 641 and 591 mg pollutant/g carbon, respectively. Over 400 bed volumes of water contaminated with 32 mg atrazine/L, and over 27,400 bed volumes of water contaminated with 2 μg atrazine/L, were treated before pesticide guideline values of 0.1 μg/L were exceeded. High adsorptive capacity was maintained when using water with high total organic carbon (TOC) levels and high salinity. The toxicity of water filtrates was tested in vitro with human epithelial cells with no evidence of cytotoxicity after initial washing
Surgical activity in the COVID-19 era. Trend of slowdown from a multicentre observational study
COVID-19 outbreak represented an unprecedented event that led to a redefinition of health care systems worldwide. The impact of the emergency required a deviation of the care toward the assistance to COVID-19 patients, with reduction of resources for elective activities, including surgery. We aim to report the decrease of urological surgical activity during the first weeks from the beginning of the pandemic, aiming to highlight the prioritization we applied to select patients for surgery
The dramatic COVID-19 outbreak in italy is responsible of a huge drop in urological surgical activity: A multicenter observational study
OBJECTIVE: Italy is facing the COVID-19 outbreak with an abrupt reorganization of its national health-system, in order to augment care provision to symptomatic patients. The sudden shift of personnel and resources towards COVID-19 care has led to the reduction of surgery, with possible severe drawbacks. The aim of the study is to describe the trend in surgical volume in urology, in Italy. MATERIALS AND METHODS: Thirty-three urological units with physicians affiliated to the AGILE consortium were involved in a survey. Urologists were asked to report the amount of surgical elective procedures week-by-week, from the beginning of the emergency to the following month. RESULTS: The 33 hospitals involved in the study account, globally, for 22,945 beds and are distributed in 13/20 Italian regions. Before the outbreak, the involved urology units performed an overall amount of 1,213 procedures per week, half of which were oncological. One month later, the amount of surgery declined by 78%. Lombardy, the first region with positive-cases, experienced a 94% reduction. The decrease in oncological and non-oncological surgical activity was 35,9% and 89%, respectively. The trend of the decline showed a delay of roughly 2 weeks for the other regions. CONCLUSION: Italy, the country with the highest fatality rate from COVID-19, is experiencing a sudden decline in surgical activity. It is inversely related to the increase in COVID-19 care, with potential harm particularly in the oncological field. The Italian experience can be helpful for future surgical pre-planning in other countries not so hardly hit by the disease yet
O Efeito da Sinalização de Qualidade no Contexto de Serviços
Signaling theory states that signals are firms’ actions that communicate information about the quality of a product. The main purpose of this research is to investigate the effect of signal quality in a service context, through the investigation of the signaling effects of price and responsiveness in a service context. Perceived behavior control, regarded as an individual's perception of the ability to perform a behavior, was proposed as a moderator between signaling variables and perceived quality. Two experimental studies with factorial and inter-subject designs were conducted in order to test the hypotheses formulated from the literature review. Results from both experiments show that signaling quality through price and responsiveness can affect perceived quality. The second experiment supports the hypothesis of perceived behavior control moderation between price as a signaling variable and perceived quality, but not between responsiveness and perceived quality. These results and their implications are discussed in the final section of the paper
Lean Manufacturing in Public Services: Prospects for Value Creation
The purpose of this paper is to investigate the utilization
of lean manufacturing systems in public service operations for poten-
tial added value. A case study of lean manufacturing implementation
at a UK city council was carried out using in-depth interviews with
key personnel coupled with documents collection. The Organizational
Commitment Questionnaire (OCQ) was administered among front-line
employees. Results show that lean manufacturing systems could create
signi cant added value to the business and employees. A strong relation-
ship was demonstrated between the lean manufacturing implementation
and the a ective commitment level of employees. This paper is one of a
few studies that demonstrate the applicability of manufacturing systems
in other settings and that they can generate significant added value for
the service department and its employees
Re: Naselli et al.: Predictors of symptomatic lymphocele after lymph node excision and radical prostatectomy
Transvestibular urethrolysis.
Bladder outlet obstruction with obstructive and irritative urinary symptoms may be a complication of surgery for female urinary incontinence. In presence of persistent symptoms the therapy is surgical and usually consists in an accurate urethrolysis. The way of approach is generally transvaginal. In this paper we propose and describe our experience with a transvestibular approach.From 1995 to 2009 18 women who had undergone anti-incontinence surgery (TVT 12 pts, TOT 3 pts, Burch retropubic colposuspension 3 pts) with obstruction and/or irritative symptoms underwent to a transvestibular urethrolysys. Five patients had urinary retention the other patients had post voiding residual urine > 100 ml. With a scalpel blade a circum-meatal incision was performed and the urethra was progressively freed, dissecting just below the os pubis upwards and on the vaginal wall downwards untethering it under direct vision obtaining a complete circular freeing of the urethra; at the end the urethral meatus is repositioned with circular stiches.The operation lasts between 20 and 40 minutes. Urethral catheter was left in place for 24-48 hours and no complications were observed. The post-voiding residual urine decreased in all the cases and the irritative symptoms were reduced.The transvestibular approach represents a safe and effective approach to urethrolysis undependently of the type of anti-incontinence surgey carried out. Urethrolysis has the advantage of working in a relatively unscarred tissue, can allow a complete untethering of the urethra even in the retropubic space and leaves the vaginal wall intact
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