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  • Burger, Maximilian  (4)
  • Bartsch, Georg  (4)
Type of Medium
  • 1
    Language: English
    In: The Journal of Urology, April 2016, Vol.195(4), pp.e538-e539
    Description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.juro.2016.02.119 Byline: Atiqullah Aziz Author Affiliation: Hamburg, Germany Article Note: (footnote) Source of Funding: None
    Keywords: Medicine
    ISSN: 0022-5347
    E-ISSN: 1527-3792
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  • 2
    Language: English
    In: Urologia Internationalis, July 2018, Vol.101(1), pp.16-24
    Description: Background/Aims/Objectives: To evaluate the influence of body mass index (BMI) on complications and oncological outcomes in patients undergoing radical cystectomy (RC). Methods: Clinical and histopathological parameters of patients have been prospectively collected within the “PROspective MulticEnTer RadIcal Cystectomy Series 2011”. BMI was categorized as normal weight (〈25 kg/m2), overweight (≥25–29.9 kg/m2) and obesity (≥30 kg/m2). The association between BMI and clinical and histopathological endpoints was examined. Ordinal logistic regression models were applied to assess the influence of BMI on complication rate and survival. Results: Data of 671 patients were eligible for final analysis. Of these patients, 26% (n = 175) showed obesity. No significant association of obesity on tumour stage, grade, lymph node metastasis, blood loss, type of urinary diversion and 90-day mortality rate was found. According to the ­American Society of Anesthesiologists score, local lymph node (NT) stage and operative case load patients with higher BMI had significantly higher probabilities of severe complications 30 days after RC (p = 0.037). The overall survival rate of obese patients was superior to normal weight patients (p = 0.019). Conclusions: There is no evidence of correlation between obesity and worse oncological outcomes after RC. While obesity should not be a parameter to exclude patients from cystectomy, surgical settings need to be aware of higher short-term complication risks and obese patients should be counselled ­accordingly.
    Keywords: Original Paper ; Urothelial Carcinoma ; Bladder Cancer ; Obesity ; Radical Cystectomy ; Prognosis ; Survival ; Medicine
    ISSN: 0042-1138
    E-ISSN: 1423-0399
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  • 3
    Language: English
    In: World Journal of Urology, 2015, Vol.33(11), pp.1753-1761
    Description: To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link: http://dx.doi.org/10.1007/s00345-015-1502-y Byline: Vladimir Novotny (1), Michael Froehner (1), Matthias May (2), Chris Protzel (3), Katrin Hergenrother (3), Michael Rink (4), Felix K. Chun (4), Margit Fisch (4), Florian Roghmann (5), Rein-Juri Palisaar (5), Joachim Noldus (5), Michael Gierth (6), Hans-Martin Fritsche (6), Maximilian Burger (6), Danijel Sikic (7), Bastian Keck (7), Bernd Wullich (7), Philipp Nuhn (8), Alexander Buchner (8), Christian G. Stief (8), Stefan Vallo (9), Georg Bartsch (9), Axel Haferkamp (9), Patrick J. Bastian (10), Oliver W. Hakenberg (3), Stefan Propping (1), Atiqullah Aziz (4) Keywords: Bladder cancer; Radical cystectomy; Recurrence; Outcome Abstract: 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 a[yen]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. Author Affiliation: (1) Department of Urology, University Hospital "Carl Gustav Carus", Dresden, Germany (2) Department of Urology, St. Elisabeth Hospital, Straubing, Germany (3) Department of Urology, University Medical Center Rostock, Rostock, Germany (4) Department of Urology, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany (5) Department of Urology, Marienhospital Herne, Ruhr-University Bochum, Herne, Germany (6) Department of Urology, Caritas St. Josef Medical Center, University of Regensburg, Regensburg, Germany (7) Department of Urology, University Hospital Erlangen, Erlangen, Germany (8) Department of Urology, Ludwig-Maximilians-University Munich, Munich, Germany (9) Department of Urology, Goethe-University Frankfurt, Frankfurt am Main, Germany (10) Department of Urology, Paracelsus Medical Center Golzheim, Dusseldorf, Germany Article History: Registration Date: 27/01/2015 Received Date: 02/12/2014 Accepted Date: 25/01/2015 Online Date: 08/02/2015
    Keywords: Bladder cancer ; Radical cystectomy ; Recurrence ; Outcome
    ISSN: 0724-4983
    E-ISSN: 1433-8726
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  • 4
    Language: English
    In: Clinical Genitourinary Cancer, October 2017, Vol.15(5), pp.e809-e817
    Description: This prospective multicenter study analyzed the effect of hospital and surgeon case volume on perioperative quality of care and short-term complications and mortality in 479 patients undergoing radical cystectomy for bladder cancer. We found that hospital volume might represent an at least equally important factor regarding postoperative complications as the surgeon case volume itself at European tertiary care centers. Case volume has been suggested to affect surgical outcomes in different arrays of procedures. We aimed to delineate the relationship between case volume and surgical outcomes and quality of care criteria of radical cystectomy (RC) in a prospectively collected multicenter cohort. This was a retrospective analysis of a prospectively collected European cohort of patients with bladder cancer treated with RC in 2011. We relied on 479 and 459 eligible patients with available information on hospital case volume and surgeon case volume, respectively. Hospital case volume was divided into tertiles, and surgeon volume was dichotomized according to the median annual number of surgeries performed. Binomial generalized estimating equations controlling for potential known confounders and inter-hospital clustering assessed the independent association of case volume with short-term complications and mortality, as well as the fulfillment of quality of care criteria. The high-volume threshold for hospitals was 45 RCs and, for high-volume surgeons, was 〉 15 cases annually. In adjusted analyses, high hospital volume remained an independent predictor of fewer 30-day (odds ratio, 0.34;  = .002) and 60- to 90-day (odds ratio, 0.41;  = .03) major complications but not of fulfilling quality of care criteria or mortality. No difference between surgeon volume groups was noted for complications, quality of care criteria, or mortality after adjustments. The coordination of care at high-volume hospitals might confer a similar important factor in postoperative outcomes as surgeon case volume in RC. This points to organizational elements in high-volume hospitals that enable them to react more appropriately to adverse events after surgery.
    Keywords: High Volume ; Postoperative Complications ; Quality of Health Care ; Urinary Bladder Neoplasms ; Volume-Outcome Relationship ; Medicine
    ISSN: 1558-7673
    E-ISSN: 1938-0682
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