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Ouzzane A.,University of Lille Nord de France | Colin P.,University of Lille Nord de France | Ghoneim T.P.,University of Lille Nord de France | Zerbib M.,Cochin Hospital | And 18 more authors.
World Journal of Urology | Year: 2013

Purpose: Prognostic impact of lymphadenectomy during radical nephroureterectomy (RNU) for urothelial carcinoma of the upper urinary tract (UTUC) is controversial. Our aim was to assess the impact of lymph node status (LNS) on survival in patients treated by RNU. Methods: In our multi-institutional, retrospective database, 714 patients with non-metastatic UTUC had undergone RNU between 1995 and 2010. LNS was tested as prognostic factor for survivals through univariate and multivariable Cox regression analysis. Results: Median age was 70 years [interquartile range (IQR), 60-75] with median follow-up of 27 months (IQR, 10-50). Overall, lymphadenectomy was performed in 254 patients (35. 5 %). Among these patients, 204 (80 %) had negative lymph nodes (pN0) and 50 (20 %) had positive lymph nodes (pN1/2). The 5-year cancer-specific survival (CSS) was 81 % [95 % confidence interval (CI), 73-88 %] for pN0 patients, 85 % (95 % CI, 80-90 %) for pNx patients and 47 % (95 % CI, 24-69 %) for pN1/2 patients (p < 0. 001). Metastasis-free survival (MFS) and overall survival (OS) rates were significantly lower in pN1/2 patients than in pN0 and pNx patients (p < 0. 05). On multivariable analysis, LNS did not appear as an independent prognostic factor for CSS, OS or MFS (p > 0. 05). In case of lymph node involvement, extra-nodal extension was marginally associated with worse CSS (log rank p = 0. 07). The retrospective design was the main limitation. Conclusion: LNS is helpful for survival stratification in patients treated with RNU for UTUC. However, LNS did not appear as an independent predictor of survival in this retrospective series and needs to be investigated in a large multicentre, prospective evaluation. © 2012 Springer-Verlag Berlin Heidelberg. Source

Rossignol M.,McGill University | Rossignol M.,Center for Risk Research | Begaud B.,University of Bordeaux Segalen | Engel P.,LA SER | And 14 more authors.
Pharmacoepidemiology and Drug Safety | Year: 2012

Objective: The objective of this study was to assess the effect of physician practicing preferences (PPP) in primary care for homeopathy (Ho), CAM (Complementary and alternative medicines) with conventional medicine (Mx) or exclusively conventional medicine (CM) on patients with musculoskeletal disorders (MSDs), with reference to clinical progression, drug consumption, side effects and loss of therapeutic opportunity. Methods: The EPI3-MSD study was a nationwide observational cohort of a representative sample of general practitioners (GP) and their patients in France. Recruitment of GP was stratified by PPP, which was self-declared. Diagnoses and comorbidities were recorded by GP at inclusion. Patients completed a standardized telephone interview at inclusion, one, three and twelve months, including MSD-functional scales and medication consumption. Results: 1153 MSD patients were included in the three PPP groups. Patients did not differ between groups except for chronicity of MSDs (>12 weeks), which was higher in the Ho group (62.1%) than in the CM (48.6%) and Mx groups (50.3%). The twelve-month development of specific functional scores was identical across the three groups after controlling for baseline score (p>0.05). After adjusting for propensity scores, NSAID use over 12 months was almost half in the Ho group (OR, 0.54; 95%CI, 0.38-0.78) as compared to the CM group; no difference was found in the Mx group (OR, 0.81; 95% CI: 0.59-1.15). Conclusion: MSD patients seen by homeopathic physicians showed a similar clinical progression when less exposed to NSAID in comparison to patients seen in CM practice, with fewer NSAID-related adverse events and no loss of therapeutic opportunity. © 2012 John Wiley & Sons, Ltd. Source

Audenet F.,University Paris - Sud | Colin P.,Lille University Hospital Center | Yates D.R.,University Paris - Sud | Ouzzane A.,Lille University Hospital Center | And 16 more authors.
BJU International | Year: 2012

OBJECTIVE • To identify, based on previously described clinical criteria, hereditary upper urinary tract urothelial carcinomas (UUT-UCs) that are likely to be misclassified as sporadic although they may belong to the spectrum of hereditary non-polyposis colorectal cancer (HNPCC) associated cancers. PATIENTS AND METHODS • We identified, using established clinical criteria, suspected hereditary UUT-UC among 1122 patients included in the French national database for UUT-UC. • Patients were considered at risk for hereditary status in the following situations: age at diagnosis < 60 years with no previous history of bladder cancer; previous history of HNPCC-related cancer regardless of age; one first-degree relative with HNPCC-related cancer diagnosed before 50 years of age or two first-degree relatives diagnosed regardless of age. RESULTS • Overall, 239 patients (21.3%) were considered to be at risk of hereditary UUT-UC. • Compared with sporadic cases, hereditary cases are more likely to be female ( P = 0.047) with less exposure to tobacco ( P = 0.012) and occupational carcinogens ( P = 0.037). A greater proportion of tumours were located in the renal pelvis (54.5% vs 48.4%; P = 0.026) and were lower grade (40% vs 30.1%; P = 0.015) in the hereditary cohort. • The overall, cancer-specific and recurrence-free survival rates were similar in both cohorts. • We propose a patient-specific risk identification tool. CONCLUSIONS • A significant proportion (21.3%) of patients with newly diagnosed UUT-UC may have underlying HNPCC as a cause. • Recognition of such potential and application of a patient-specific checklist upon diagnosis will allow identification and appropriate clinical and genetic management for patient and family. © 2012 BJU International. Source

Grimaldi-Bensouda L.,LA SER | Grimaldi-Bensouda L.,Institute Pasteur Paris | Begaud B.,University of Bordeaux Segalen | Rossignol M.,McGill University | And 13 more authors.
PLoS ONE | Year: 2014

Background: Prescribing of antibiotics for upper respiratory tract infections (URTI) varies substantially in primary care. Objectives: To describe and compare antibiotic and antipyretic/anti-inflammatory drugs use, URTI symptoms' resolution and occurrence of potentially-associated infections in patients seeking care from general practitioners (GPs) who exclusively prescribe conventional medications (GP-CM), regularly prescribe homeopathy within a mixed practice (GP-Mx), or are certified homeopathic GPs (GP-Ho). Method: The EPI3 survey was a nationwide population-based study of a representative sample of 825 GPs and their patients in France (2007-2008). GP recruitment was stratified by self-declared homeopathic prescribing preferences. Adults and children with confirmed URTI were asked to participate in a standardized telephone interview at inclusion, one-, three- and twelve-month follow up. Study outcomes included medication consumption, URTI symptoms' resolution and potentially-associated infections (sinusitis or otitis media/externa) as reported by patients. Analyses included calibration to account for non-respondents and groups were compared using multivate analyses adjusting for baseline differences with a propensity score. Results: 518 adults and children with URTI (79.3% rhinopharyngitis) were included (36.9% response rate comparable between groups). As opposed to GP-CM patients, patients in the GP-Ho group showed significantly lower consumption of antibiotics (Odds ratio (OR) = 0.43, 95% confidence interval (CI): 0.27-0.68) and antipyretic/anti-inflammatory drugs (OR = 0.54, 95% CI: 0.38-0.76) with similar evolution in related symptoms (OR = 1.16, 95% CI: 0.64-2.10). An excess of potentially-associated infections (OR = 1.70, 95% CI: 0.90-3.20) was observed in the GP-Ho group (not statistically significant). No difference was found between GP-CM and GP-Mx patients. Conclusion: Patients who chose to consult GPs certified in homeopathy used less antibiotics and antipyretic/anti-inflammatory drugs for URTI than those seen by GPs prescribing conventional medications. No difference was observed in patients consulting GPs within mixed-practice. A non-statistically significant excess was estimated through modelling for associated infections in the GP-Ho group and needs to be further studied. © 2014 Grimaldi-Bensouda et al. Source

Yates D.R.,University Paris - Sud | Hupertan V.,University Paris Diderot | Colin P.,University of Lille Nord de France | Ouzzane A.,University of Lille Nord de France | And 11 more authors.
British Journal of Cancer | Year: 2012

Background: Owing to the scarcity of upper urinary tract urothelial carcinoma (UUT-UC) it is often necessary for investigators to pool data. A patient-specific survival nomogram based on such data is needed to predict cancer-specific survival (CSS) post nephroureterectomy (NU). Herein, we propose and validate a nomogram to predict CSS post NU.Patients and Methods: Twenty-one French institutions contributed data on 1120 patients treated with NU for UUT-UC. A total of 667 had full data for nomogram development. Study population was divided into the nomogram development cohort (397) and external validation cohort (270). Cox proportional hazards regression models were used for univariate and multivariate analyses and to build a nomogram. A reduced model selection was performed using a backward step-down selection process, and Harrell's concordance index (c-index) was used for quantifying the nomogram accuracy. Internal validation was performed by bootstrapping and the reduced nomogram model was calibrated. Results :Of the 397 patients in the nomogram development cohort, 91 (22.9%) died during follow-up, of which 66 (72.5%) died as a consequence of UUT-UC. The actuarial CSS probability at 5 years was 0.76 (95% CI, 71.62-80.94). On multivariate analysis, T stage (P<0.0001), N status (P=0.014), grade (P=0.026), age (P=0.005) and location (P=0.022) were associated with CSS. The reduced nomogram model had an accuracy of 0.78. We propose a nomogram to predict 3 and 5-year CSS post NU for UUT-UC. Conclusion: We have devised and validated an accurate nomogram (78%), superior to any single clinical variable or current model, for predicting 5-year CSS post NU for UUT-UC. © 2012 Cancer Research UK All rights reserved. Source

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