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20 result(s) for "Aziz, Atiqullah"
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Oncological Outcomes for Patients Harboring Positive Surgical Margins Following Radical Cystectomy for Muscle-Invasive Bladder Cancer: A Retrospective Multicentric Study on Behalf of the YAU Urothelial Group
Introduction: Adjuvant therapy has no defined role for patients with positive surgical margins (PSMs) following radical cystectomy (RC) for muscle-invasive bladder cancer (MIBC). The aim of our study was to describe loco-regional recurrence-free survival (LRFS), metastatic-free survival (MFS), recurrence-free survival (RFS), cancer-specific survival (CSS) and overall survival (OS) and identify predictors of each endpoint in patients with PSMs following RC for MIBC. Methods: A collaborative retrospective cohort study was conducted on 394 patients with PSMs who underwent RC for MIBC between January 2000 and December 2018 at 10 tertiary referral centers. Patients receiving perioperative radiotherapy were excluded from the study. Kaplan–Meier curves were used to estimate patient survival. Cox regression analysis was used to identify predictors of survival. Results: Median age at surgery was 70 years (IQR 62–76) with 129 (33%) and 204 (52%) patients had pT3 and pT4 tumors, respectively. Nodal metastasis (pN+) was identified in 148 (38%). Soft tissue PSMs were found in 283 (72%) patients, urethral PSMs in 65 (16.5%), and ureteral PSMs were found in 73 (18.5%). The median follow-up time was 44 months (95% CI 32–60). Median LRFS, MRFS, RFS, CSS, and OS were 14 (95% CI 11–17), 12 (95% CI 10–16), 10 (95% CI 8–12), 23 (95% CI 18–33), and 16 months (95% CI 12–19), respectively. On multivariable Cox regression analysis, the pT3–4 stage, pN+ stage, and multifocal PSMs were independent predictors of LRFS, MRFS, RFS, and OS. Adjuvant chemotherapy improved all oncological outcomes studied (p < 0.05). The number of lymph nodes removed was independently associated with better LRFS, MRFS, and RFS. Advanced age at diagnosis was independently associated with worse OS. Conclusion: Patients with PSMs following RC have poor outcomes since half of them will recur within a year and will die of their disease. Among all PSMs types, patients with multifocal PSMs harbor the worst prognosis. We observed a benefit of adjuvant chemotherapy, but clinical trials evaluating innovative adjuvant strategies for these patients remain an unmet need.
Current application of the enhanced recovery after surgery protocol for patients undergoing radical cystectomy: lessons learned from European excellence centers
PurposeThere is no consensus on which items of Enhanced Recovery After Surgery (ERAS) should and should not be implemented in radical cystectomy (RC). The aim of this study is to report current practices across European high-volume RC centers involved in ERAS.MethodsBased on the recommendations of the ERAS society, we developed a survey with 17 questions that were validated by the Young Academic Urologists–urothelial group. The survey was distributed to European expert centers that implement ERAS for RC. Only one answer per-center was allowed to keep a representative overview of the different centers.Results70 surgeons fulfilled the eligibility criteria. Of note, 28.6% of surgeons do not work with a referent anesthesiologist and 25% have not yet assessed the implementation of ERAS in their center. Avoiding bowel preparation, thromboprophylaxis, and removal of the nasogastric tube were widely implemented (> 90%application). On the other hand, preoperative carbohydrate loading, opioid-sparing anesthesia, and audits were less likely to be applied. Common barriers to ERAS implementation were difficulty in changing habits (55%), followed by a lack of communication across surgeons and anesthesiologist (33%). Responders found that performing a regular audit (14%), opioid-sparing anesthesia (14%) and early mobilization (13%) were the most difficult items to implement.ConclusionIn this survey, we identified the ERAS items most and less commonly applied. Collaboration with anesthesiologists as well as regular audits remain a challenge for ERAS implementation. These results support the need to uniform ERAS for RC patients and develop strategies to help departments implement ERAS.
Complication rate after cystectomy following pelvic radiotherapy: an international, multicenter, retrospective series of 682 cases
PurposeConflicting evidence exists on the complication rates after cystectomy following previous radiation (pRTC) with only a few available series. We aim to assess the complication rate of pRTC for abdominal–pelvic malignancies.MethodsPatients treated with radical cystectomy following any previous history of RT and with available information on complications for a minimum of 1 year were included. Univariable and multivariable logistic regression models were used to assess the relationship between the variable parameters and the risk of any complication.Results682 patients underwent pRTC after a previous RT (80.5% EBRT) for prostate, bladder (BC), gynecological or other cancers in 49.1%, 27.4%, 9.8% and 12.9%, respectively. Overall, 512 (75.1%) had at least one post-surgical complication, classified as Clavien ≥ 3 in 29.6% and Clavien V in 2.9%. At least one surgical complication occurred in 350 (51.3%), including bowel leakage in 6.2% and ureteric stricture in 9.4%. A medical complication was observed in 359 (52.6%) patients, with UTI/pyelonephritis being the most common (19%), followed by renal failure (12%). The majority of patients (86%) received an incontinent urinary diversion. In multivariable analysis adjusted for age, gender and type of RT, patients treated with RT for bladder cancer had a 1.7 times increased relative risk of experiencing any complication after RC compared to those with RT for prostate cancer (p = 0.023). The type of diversion (continent vs non-continent) did not influence the risk of complications.ConclusionpRTC carries a high rate of major complications that dramatically exceeds the rates reported in RT-naïve RCs.
The impact of treatment modality on survival in patients with clinical node-positive bladder cancer: results from a multicenter collaboration
PurposeTo assess the impact of perioperative chemotherapy on survival in cN+ BCa patients and analyze it according to the pN status.MethodsA retrospective analysis was conducted on 639 BCa patients with cTanyN1-3M0 BCa treated with radical cystectomy (RC) and bilateral lymph node dissection (LND) with or without perioperative chemotherapy in ten tertiary referral centers from 1990 to 2017. Selected cN+ patients received induction chemotherapy (IC), whereas adjuvant chemotherapy (ACT) was delivered to selected pN+ patients. Univariable and multivariable Cox regression analyses were used to predict overall mortality (OM) after surgery, adjusting for clinicopathological confounders. Kaplan–Meier analyses assessed OM according to the treatment modality.ResultsOverall, 356 (56%) patients were treated with surgery alone, 155 (24%) with IC followed by surgery, and 128 (20%) with ACT following surgery. Over a median follow-up of 25 months, 316 deaths were recorded. At univariable analysis, patients treated with IC and surgery had lower OM both considering cN+ [hazard ratio (HR) 0.65, 95% confidence interval (CI) 0.49–0.87, p = 0.004] and cN+pN− patients (HR 0.61, 95% CI 0.37–0.99, p = 0.05) compared to those treated with surgery alone. cN+pN+ patients treated with ACT experienced lower OM compared to those treated with IC or surgery alone at multivariable analysis (HR 0.40, 95% CI 0.22–0.74, p = 0.003).ConclusionPatients with cTany cN+ cM0 BCa benefit more in terms of OS when treated with IC followed by RC + LND compared to RC + LND alone, regardless of LNMs at final histopathology examination. More data are needed to assess the role of ACT in the management of cN+ patients.
Perioperative chemotherapy in upper tract urothelial carcinoma: a comprehensive review
Purpose To evaluate the role of neoadjuvant (NAC) and adjuvant chemotherapy (AC) in patients with upper tract urothelial carcinoma (UTUC) treated with radical nephroureterectomy (RNU). Methods A comprehensive review of the current literature was performed searching for all studies investigating NAC and AC in UTUC in MEDLINE and https://clinicaltrials.gov , prior to April 2016. The following keywords were used: “ureteral neoplasms,” “urothelium,” “ureter,” “upper tract urothelial,” “chemotherapy,” “adjuvant,” “neoadjuvant” and relevant variants. Results No randomized trials investigated the role of AC or NAC for UTUC. There was one prospective study with n  = 36 patients investigating AC with carboplatin–paclitaxel. We included 14 retrospective studies (four in the NAC and ten in the AC setting), with a total of 694 patients receiving cisplatin-based or non-cisplatin-based AC after RNU and 1437 patients undergoing RNU alone. We found that the current literature, mainly based on retrospective studies, suggests significant overall and cancer-specific survival benefits for AC in UTUC. NAC appears promising, with favorable pathologic response rates up to 14%. Conclusions Evidence is scarce for both NAC and AC use in UTUC. This comprehensive review suggests promising response rates for NAC and a survival benefit for patients treated with AC. Prospective randomized trials are needed to establish the role of AC and NAC in UTUC.
Adjuvant chemotherapy is ineffective in patients with bladder cancer and variant histology treated with radical cystectomy with curative intent
ObjectivesAdjuvant chemotherapy (ACT) is recommended for non-organ-confined bladder cancer (BCa) after radical cystectomy (RC) and pelvic lymph node dissection (PLND), but there are sparse data regarding its specific efficacy in patients with histological variants. The aim of our study was to evaluate the role of ACT on survival outcomes in patients with variant histology in a large multicenter cohort.Materials and methodsWe retrospectively evaluated data of 3963 patients with BCa treated with RC and bilateral PLND with curative intent at several institutions between 1999 and 2018. The histological type was classified into six groups: pure urothelial carcinoma (PUC) or squamous, sarcomatoid, micropapillary, glandular and neuroendocrine differentiation. Multivariable competing risk analysis was applied to assess the role of ACT on recurrence and cancer-specific mortality (CSM) in each histological subtype.ResultsOf the 3963 patients included in the study, 23% had variant histology at RC specimen and 723 (18%) patients received ACT. ACT was found to be significantly associated with reduced risk of recurrence (sub-hazard ratio [SHR]: 0.55, confidence interval [CI] 0.42–0.71, p < 0.001) and CSM (SHR: 0.58, CI 0.44–0.78, p < 0.001) in the PUC only, while no histological subtype received a significant benefit on survival outcomes (all p > 0.05) from administration of ACT. The limitation of the study includes the retrospective design, the lack of a central pathology review and the number of ACT cycles.ConclusionIn our study, the administration of ACT was associated with improved survival outcomes in PUC only. No histological subtype found a benefit in overall recurrence and CSM from ACT.
Epithelial–mesenchymal transformation markers E-cadherin and survivin predict progression of stage pTa urothelial bladder carcinoma
Purpose To determine whether the immunohistochemical markers survivin and E-cadherin can predict progress at initially diagnosed Ta bladder cancer. Methods We retrospectively searched for every initially diagnosed pTa urothelial bladder carcinoma having been treated at our single-center hospital in Germany from January 1992 up to December 2004. Follow-up was recorded up to June 2010, with recurrence or progress being the endpoints. Immunohistochemical staining and analysis of survivin and E-cadherin of the TURB specimens were performed. Outcome dependency of progression and no progression with immunohistochemical staining was analyzed using uni- and multivariate regression analysis, Kaplan–Meier analysis and uni- and multivariate Cox regression analysis. Results Overall, 233 patients were included. Forty-two percent of those were tumor free in their follow-up TURBs, 46 % had at least one pTa recurrence and 12 % even showed progress to at least pT1 bladder cancer. Aberrant staining of E-cadherin was found within 71 % of patients with progression in contrast to only 40 % in cases without progression ( p  = 0.004). Of all progressed patients, 92 % showed overexpression of survivin in their initial pTa specimen compared to 61 % without progression ( p  = 0.001). Kaplan–Meier analysis revealed aberrant E-cadherin staining to be associated with worse progression-free survival (PFS) ( p  = 0.005) as well as overexpression of survivin ( p  = 0.003). In multivariate Cox regression analysis, strong E-cadherin staining was an independent prognosticator for better PFS ( p  = 0.033) and multifocality ( p  = 0.046) and tumor size over 3 cm ( p  = 0.042) were prognosticators for worse PFS. Conclusion Adding the immunohistochemical markers survivin and E-cadherin could help to identify patients at risk of developing a progressive disease in initial stage pTa bladder cancer.
Risk stratification for locoregional recurrence after radical cystectomy for urothelial carcinoma of the bladder
Purpose To externally validate the Christodouleas risk model incorporating pathological tumor stage, lymph node (LN) count and soft tissue surgical margin (STSM) and stratifying patients who develop locoregional recurrence (LR) after radical cystectomy (RC) for urothelial carcinoma of the bladder (UCB). In addition, we aimed to generate a new model including established clinicopathological features that were absent in the Christodouleas risk model. Methods Prospectively assessed multicenter data from 565 patients undergoing RC for UCB in 2011 qualified for final analysis. For the purpose of external validation, risk group stratification according to Christodouleas was performed. Competing-risk models were calculated to compare the cumulative incidences of LR after RC. Results After a median follow-up of 25 months (interquartile range 19–29), the LR-rate was 11.5 %. The Christodouleas model showed a predictive accuracy of 83.2 % in our cohort. In multivariable competing-risk analysis, tumor stage ≥pT3 (HR 4.32, p  < 0.001), positive STSM (HR 2.93, p  = 0.005), lymphovascular invasion (HR 3.41, p  < 0.001), the number of removed LNs <10 (HR 2.62, p  < 0.001) and the administration of adjuvant chemotherapy (HR 0.40, p  = 0.008) independently predicted the LR-rate. The resulting risk groups revealed significant differences in LR-rates after 24 months with 4.8 % for low-risk patients, 14.7 % for intermediate-risk patients and 38.9 % for high-risk patients ( p  < 0.001 for all), with a predictive accuracy of 85.6 %, respectively. Conclusions The Christodouleas risk model has been successfully externally validated in the present prospective series. However, this analysis finds that overall model performance may be improved by incorporating lymphovascular invasion. After external validation of the newly proposed risk model, it may be used to identify patients who benefit from an adjuvant therapy and suit for inclusion in clinical trials.
Prediction models of incontinence and sexual function one year after radical prostatectomy based on data from 20 164 prostate cancer patients
Incontinence and sexual dysfunction are long-lasting side effects after surgical treatment (radical prostatectomy, RP) of prostate cancer (PC). For an informed treatment decision, physicians and patients should discuss expected impairments. Therefore, this paper firstly aims to develop and validate prognostic models that predict incontinence and sexual function of PC patients one year after RP and secondly to provide an online decision making tool. Observational cohorts of PC patients treated between July 2016 and March 2021 in Germany were used. Models to predict functional outcomes one year after RP measured by the EPIC-26 questionnaire were developed using lasso regression, 80-20 splitting of the data set and 10-fold cross validation. To assess performance, R2, RMSE, analysis of residuals and calibration-in-the-large were applied. Final models were externally temporally validated. Additionally, percentages of functional impairment (pad use for incontinence and firmness of erection for sexual score) per score decile were calculated to be used together with the prediction models. For model development and internal as well as external validation, samples of 11 355 and 8 809 patients were analysed. Results from the internal validation (incontinence: R2 = 0.12, RMSE = 25.40, sexual function: R2 = 0.23, RMSE = 21.44) were comparable with those of the external validation. Residual analysis and calibration-in-the-large showed good results. The prediction tool is freely accessible: https://nora-tabea.shinyapps.io/EPIC-26-Prediction/. The final models showed appropriate predictive properties and can be used together with the calculated risks for specific functional impairments. Main strengths are the large study sample (> 20 000) and the inclusion of an external validation. The models incorporate meaningful and clinically available predictors ensuring an easy implementation. All predictions are displayed together with risks of frequent impairments such as pad use or erectile dysfunction such that the developed online tool provides a detailed and informative overview for clinicians as well as patients.
Evidence from the ‘PROspective MulticEnTer RadIcal Cystectomy Series 2011 (PROMETRICS 2011)’ Study: How are Preoperative Patient Characteristics Associated with Urinary Diversion Type After Radical Cystectomy for Bladder Cancer?
Purpose The aim of this study was to examine preoperative patients’ characteristics associated with the urinary diversion (UD) type (continent vs. incontinent) after radical cystectomy (RC) and UD-associated postoperative complications. Materials In 2011, 679 bladder cancer patients underwent RC at 18 European tertiary care centers. Data were prospectively collected within the ‘ PRO spective M ultic E n T er R ad I cal C ystectomy S eries 2011’ (PROMETRICS 2011). Logistic regression models assessed the impact of preoperative characteristics on UD type and evaluated diversion-related complication rates. Results Of 570 eligible patients, 28.8, 2.6, 59.3, and 9.3 % received orthotopic neobladders, continent cutaneous pouches, ileal conduits, and ureterocutaneostomies, respectively. In multivariable analyses, female sex (odds ratio [OR] 3.9; p   =  0.002), American Society of Anesthesiologists score ≥3 (OR 2.3; p   =  0.02), an age-adjusted Charlson Comorbidity Index ≥3 (OR 4.1; p   <  0.001), and a positive biopsy of the prostatic urethra in the last transurethral resection of the bladder prior to RC (OR 4.9; p   =  0.03) were independently associated with incontinent UD. There were no significant differences in 30- and/or 90-day complication rates between the UD types. Perioperative transfusion rates and 90-day mortality were significantly associated with incontinent UD ( p   <  0.001, respectively). Limitations included the small sample size and a certain level of heterogeneity in the application of clinical pathways between the different participating centers. Conclusions Within this prospective contemporary cohort of European RC patients treated at tertiary care centers, the majority of patients received an incontinent UD. Female sex and pre-existing comorbidities were associated with receiving an incontinent UD. The risk of overall complications did not vary according to UD type.