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  • 1
    Language: German
    In: Urologie Scan, 2014, Vol.01(02), pp.127-140
    Description: Die Urolithiasis ist eine Volkskrankheit, der bis zuletzt eine steigende Inzidenz in Industrieländern bescheinigt wurde. Neuesten Daten zufolge beläuft sich die Prävalenz in Deutschland auf ca. 3 %, bei einer jährlichen Neuerkrankungsrate von 0,4 %. Rezidive treten bei einem Viertel der Patienten mit meist zwei oder mehr Episoden auf. Während Nierensteine oft asymptomatisch sind, führt deren Migration in den Ureter i. d. R. zu akuten Flankenschmerzen, die häufig zu einer notfallmäßigen, ärztlichen Konsultation führen. Mit steigender Inzidenz des Harnsteinleidens wurde eine Zunahme notärztlicher Vorstellungen und stationärer Aufnahmen beobachtet. Dieser Artikel widmet sich dem diagnostischen und therapeutischen Vorgehen bei akuten Flankenschmerzen mit dem Verdacht auf einen Harnleiterstein. Hierbei wird v. a. auf das Einschätzen der Dringlichkeit einer Therapie und den zur Verfügung stehenden Therapieoptionen Wert gelegt.
    Keywords: Harnsteinleiden
    ISSN: 2198-9109
    E-ISSN: 2198-9117
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  • 2
    Language: English
    In: Journal of Emergency Medicine, September 2018, Vol.55(3), pp.319-326
    Description: Acute renal colic (ARC) is an emergency that can mostly be treated conservatively, but can be life threatening in combination with urinary tract infection (UTI). Assessment for infection includes white blood cell (WBC) count and C-reactive protein (CRP), but these parameters are often unspecifically elevated and might lead to antibiotic over-therapy. In times of increasing antibiotic resistance, however, unnecessary antibiotic therapy should be avoided. The goal of the study was to investigate the prevalence of UTI proven by urine culture (UC) in patients with ARC and to identify predictive factors in the emergency setting. We prospectively enrolled 200 consecutive patients with ARC and evaluated blood test results, urinalysis, UC, symptoms suspicious for UTI, and time between symptom onset and admission, as well as body temperature. Logistic regression analyses were performed to identify predictive factors. There were 196 patients eligible for statistical analysis. UTI proven by positive UC was detected in 26 patients (13%). On multivariate logistic regression analysis, suspicious urinalysis (positive nitrite or bacteria 〉 20/high-power field [hpf] or WBC 〉 20/hpf), patient age ≥ 54 years and CRP ≥ 1.5 mg/dL (fivefold increase) were significant predictors for the presence of UTI. Neither elevated WBC count nor typical UTI symptoms were associated with UTI. Based on our results, a routine antibiotic prophylaxis in patients with ARC does not seem to be appropriate. Patient age and CRP can help to decide if antibiotic treatment might be indicated, even in case of a not clearly suspicious urinalysis.
    Keywords: Acute Renal Colic ; Urinary Tract Infection ; Leukocytosis ; C-Reactive Protein ; Medicine
    ISSN: 0736-4679
    E-ISSN: 2352-5029
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  • 3
    Language: English
    In: Journal of endourology, September 2014, Vol.28(9), pp.1034-9
    Description: Shockwave lithotripsy (SWL) is the gold standard treatment of patients with most renal and proximal ureteral calculi. Severe bleeding complications in SWL are extremely rare. Uncorrected bleeding diathesis might increase the risk and is considered to be an absolute contraindication for SWL. Perioperative management of anticoagulative and antiplatelet therapy has changed in the recent past. In particular, low-dose acetylsalicylic acid (ASA) is no longer a contraindication for many surgical procedures. A systematic Medline/PubMed literature search of peer-reviewed scientific articles in urology and cardiovascular medicine was performed concerning the management of anticoagulative and antiplatelet medication during SWL. The literature on medically acquired and pathological bleeding diathesis and SWL in general is rare, retrospective, nonstandardized, and of low quality. Routine cessation of obligatory indicated anticoagulative or antiplatelet medication implies a significant risk for cardiovascular adverse events (CAE). Ureterorenoscopy is recommended in patients with uncorrected bleeding diathesis, although this is not based on high-level evidence. In patients with obligatory intake of anticoagulative or antiplatelet medication, the risk for CAE must be balanced against the SWL-induced bleeding risk. In patients with low-dose ASA-intake, SWL should be considered as an option instead of being disregarded as an absolute contraindication. Prospective randomized trials designed to define the optimal management of anticoagulants and antiplatelets during SWL are warranted.
    Keywords: Anticoagulants -- Administration & Dosage ; Aspirin -- Administration & Dosage ; Hemorrhage -- Prevention & Control ; Kidney Calculi -- Therapy ; Lithotripsy -- Adverse Effects ; Platelet Aggregation Inhibitors -- Administration & Dosage ; Ureteral Calculi -- Therapy
    ISSN: 08927790
    E-ISSN: 1557-900X
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  • 4
    In: BJU International, February 2016, Vol.117(2), pp.272-279
    Description: Byline: Atiqullah Aziz, Shahrokh F. Shariat, Florian Roghmann, Sabine Brookman-May, Christian G. Stief, Michael Rink, Felix K. Chun, Margit Fisch, Vladimir Novotny, Michael Froehner, Manfred P. Wirth, Marco J. Schnabel, Hans-Martin Fritsche, Maximilian Burger, Armin Pycha, Antonin Brisuda, Marko Babjuk, Stefan Vallo, Axel Haferkamp, Jan Roigas, Joachim Noldus, Regina Stredele, Bjorn Volkmer, Patrick J. Bastian, Evanguelos Xylinas, Matthias May Keywords: bladder cancer; radical cystectomy; mortality; nomograms; outcome Objective To externally validate the pT4a-specific risk model for cancer-specific survival (CSS) proposed by May etal. (Urol Oncol 2013; 31: 1141-1147) and to develop a new pT4a-specific nomogram predicting CSS in an international multicentre cohort of patients undergoing radical cystectomy (RC) for urothelial carcinoma of the bladder (UCB) Patients and Methods Data from 856 patients with pT4a UCB treated with RC at 21 centres in Europe and North-America were assessed. The risk model proposed by May etal., which includes female gender, presence of positive lymphovascular invasion (LVI) and lack of adjuvant chemotherapy administration as adverse predictors for CSS, was applied to our cohort. For the purpose of external validation, model discrimination was measured using the receiver-operating characteristic-derived area under the curve. A nomogram for predicting CSS in pT4a UCB after RC was developed after internal validation based on multivariable Cox proportional hazards regression analysis evaluating the impact of clinicopathological variables on CSS. Decision-curve analyses were applied to determine the net benefit derived from the two models. Results The estimated 5-year-CSS after RC was 34% in our cohort. The risk model devised by May etal. predicted individual 5-year-CSS with an accuracy of 60.1%. In multivariable Cox proportional hazards regression analysis, female gender (hazard ratio [HR] 1.45), LVI (HR 1.37), lymph node metastases (HR 2.54), positive soft tissue surgical margins (HR 1.39), neoadjuvant (HR 2.24) and lack of adjuvant chemotherapy (HR 1.67, all P 〈 0.05) were independent predictors of an adverse CSS rate and formed the features of our nomogram with a predictive accuracy of 67.1%. Decision-curve analyses showed higher net benefits for the use of the newly developed nomogram in our cohort over all thresholds. Conclusions The risk model devised by May etal. was validated with moderate discrimination and was outperformed by our newly developed pT4a-specific nomogram in the present study population. Our nomogram might be particularly suitable for postoperative patient counselling in the heterogeneous cohort of patients with pT4a UCB. Article Note: A.A. and S.F.S. contributed equally to the study.
    Keywords: Bladder Cancer ; Radical Cystectomy ; Mortality ; Nomograms ; Outcome
    ISSN: 1464-4096
    E-ISSN: 1464-410X
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  • 5
    Language: English
    In: World Journal of Urology, 2015, Vol.33(3), pp.343-350
    Description: Byline: Matthias May (1), Atiqullah Aziz (2,5), Sabine Brookman-May (3), Florian Roghmann (4), Joachim Noldus (4), Michael Rink (5), Felix Chun (5), Margit Fisch (5), Vladimir Novotny (6), Manfred Wirth (6), Roman Mayr (2,7), Armin Pycha (7), Antonin Brisuda (8), Bjorn Volkmer (9), Regina Stredele (9), Christopher Dechet (10), Stefan Vallo (11), Axel Haferkamp (11), Marco Schnabel (2), Stefan Denzinger (2), Jan Roigas (12), Christian G. Stief (3), Christian Gilfrich (1), Patrick J. Bastian (13), Jorg B. Engel (14), Maximilian Burger (2), Hans-Martin Fritsche (2) Keywords: Urothelial carcinoma; Bladder cancer; Radical cystectomy; Vaginal invasion; Uterine invasion; Prognosis Abstract: Purpose To evaluate for the first time the prognostic significance of female invasive patterns in stage pT4a urothelial carcinoma of the bladder in a large series of women undergoing anterior pelvic exenteration. Patients and methods Our series comprised of 92 female patients in total of whom 87 with known invasion patterns were eligible for final analysis. Median follow-up for evaluation of cancer-specific mortality (CSM) was 38 months (interquartile ranges, 21--82 months). The impact on CSM was evaluated using multivariable Cox proportional-hazards regression analysis predictive accuracy (PA) was assessed by receiver operating characteristic analysis. Results Vaginal invasion was noted in 33 patients (37.9 % group VAG), uterine invasion in 20 patients (23 % group UT), and infiltration of both vagina and uterus in 34 patients (39.1 % group VAG + UT). Groups VAG and UT significantly differed from group VAG + UT with regard to the presence of positive soft tissue margins (STM) only. Five-year-cancer-specific survival probabilities in the groups VAG, UT, and VAG + UT were 21, 20, and 21 %, respectively (p = 0.955). On multivariable analysis, only STM status (HR = 2.02, p = 0.023) independently influenced CSM. C-indices of multivariable models for CSM with and without integration of invasive patterns were 0.570 and 0.567, respectively (PA gain 0.3 %, p = 0.526). Conclusions Infiltration of the vagina, the uterus or both is associated with poor 5-year survival rates. With regard to CSM, no difference was detectable between patients with different invasion patterns, thus justifying further collectively including these invasive patterns as stage pT4a. Author Affiliation: (1) Department of Urology, St. Elisabeth Medical Centre Straubing, Straubing, Germany (2) Department of Urology, Caritas St. Josef Medical Centre, University of Regensburg, Regensburg, Germany (3) Department of Urology, Ludwig-Maximilians-University Munich, Munich, Germany (4) Department of Urology, Marienhospital Herne, Ruhr-University Bochum, Herne, Germany (5) Department of Urology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany (6) Department of Urology, University Hospital "Carl Gustav Carus", Dresden Technical University, Dresden, Germany (7) Department of Urology, General Hospital of Bolzano, Bolzano, Italy (8) Department of Urology, 2nd Faculty of Medicine, Motol University Hospital, Prague, Czech Republic (9) Department of Urology, Kassel Medical Centre, Kassel, Germany (10) Division of Urology, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA (11) Department of Urology, Goethe-University Frankfurt, Frankfurt am Main, Germany (12) Department of Urology, Vivantes Medical Centre Im Friedrichshain and Am Urban, Berlin, Germany (13) Department of Urology, Paracelsus Medical Centre Golzheim, Dusseldorf, Germany (14) Department of Gynecology and Obstetrics, Caritas St. Josef Medical Centre, University of Regensburg, Regensburg, Germany Article History: Registration Date: 22/04/2014 Received Date: 18/03/2014 Accepted Date: 22/04/2014 Online Date: 10/05/2014 Article note: Matthias May and Atiqullah Aziz have contributed equally to this work.
    Keywords: Urothelial carcinoma ; Bladder cancer ; Radical cystectomy ; Vaginal invasion ; Uterine invasion ; Prognosis
    ISSN: 0724-4983
    E-ISSN: 1433-8726
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  • 6
    Language: English
    In: Urologic Oncology: Seminars and Original Investigations, October 2016, Vol.34(10), pp.432.e1-432.e8
    Description: To evaluate the prognostic relevance of different prostatic invasion patterns in pT4a urothelial carcinoma of the bladder (UCB) after radical cystectomy. Our study comprised a total of 358 men with pT4a UCB. Patients were divided in 2 groups—group A with stromal infiltration of the prostate via the prostatic urethra with additional muscle-invasive UCB ( = 121, 33.8%) and group B with continuous infiltration of the prostate through the entire bladder wall ( = 237, 66.2%). The effect of age, tumor grade, carcinoma in situ, lymphovascular invasion, soft tissue surgical margin, lymph node metastases, administration of adjuvant chemotherapy, and prostatic invasion patterns on cancer-specific mortality (CSM) was evaluated using competing-risk regression analysis. Decision curve analysis was used to evaluate the net benefit of including the variable invasion pattern within our model. The estimated 5-year CSM-rates for group A and B were 50.1% and 66.0%, respectively. In multivariable competing-risk analysis, lymph node metastases (hazard ratio [HR] = 1.73, 〈0.001), lymphovascular invasion (HR = 1.62, = 0.0023), soft tissue surgical margin (HR = 1.49, = 0.026), absence of adjuvant chemotherapy (HR = 2.11, 〈0.001), and tumor infiltration of the prostate by continuous infiltration of the entire bladder wall (HR = 1.37, = 0.044) were significantly associated with a higher risk for CSM. Decision curve analysis showed a net benefit of our model including the variable invasion pattern. Continuous infiltration of the prostate through the entire bladder wall showed an adverse effect on CSM. Besides including these patients into clinical trials for an adjuvant therapy, we recommend including prostatic invasion patterns in predictive models in pT4a UCB in men.
    Keywords: Bladder Cancer ; Radical Cystectomy ; Mortality ; Outcome ; Prostatic Invasion Pattern ; Medicine
    ISSN: 1078-1439
    E-ISSN: 1873-2496
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  • 7
    Language: English
    In: Annals of Surgical Oncology, 2014, Vol.21(12), pp.4034-4040
    Description: Byline: Matthias May (1), Sabine Brookman-May (2), Maximilian Burger (3), Christian Gilfrich (1), Hans-Martin Fritsche (3), Michael Rink (4), Felix Chun (4), Margit Fisch (4), Florian Roghmann (5), Joachim Noldus (5), Roman Mayr (6), Armin Pycha (6), Vladimir Novotny (7), Manfred Wirth (7), Stefan Vallo (8), Axel Haferkamp (8), Jan Roigas (9), Antonin Brisuda (10), Regina Stredele (11), Bjorn Volkmer (11), Christopher Dechet (12), Marco Schnabel (3), Stefan Denzinger (3), Christian G. Stief (2), Patrick J. Bastian (13), Atiqullah Aziz (4) Abstract: Purpose To evaluate the prognostic value of concomitant seminal vesicle invasion (cSVI) in patients with urothelial carcinoma of the bladder (UCB) and contiguous prostatic stromal infiltration in a large cystectomy series. Methods A total of 385 patients with UCB and contiguous prostatic infiltration comprised our study. Patients were divided in two groups according to cSVI. Median follow-up was 36 months (interquartile range 11--74) the primary end point was cancer-specific mortality. The prognostic impact of cSVI was evaluated using multivariable Cox regression analysis. The predictive accuracy was assessed by a receiver operating characteristic analysis. Results A total of 229 patients (59.5 %) without cSVI comprised group A, and 156 patients (40.5 %) with cSVI comprised group B. Positive lymph nodes (63 vs. 44 %, p 〈 0.001) and positive surgical margins (34 % vs. 14 %, p 〈 0.001) were more common in patients with cSVI. The 5- and 10-year cancer-specific survival rates were 41 % and 32 % (group A) and 21 and 17 % (group B) (p 〈 0.001). In multivariable analysis, pathological nodal stage (hazard ratio [HR] 2.19, p 〈 0.001), soft tissue surgical margin (HR 1.57, p = 0.010), clinical tumor stage (HR 1.46, p = 0.010), adjuvant chemotherapy (HR 0.40, p 〈 0.001), and cSVI (HR 1.69, p 〈 0.001) independently impacted cancer-specific mortality. The c-indices of the multivariable models with and without inclusion of cSVI were 0.658 (95 % confidence interval 0.60--0.71) and 0.635 (95 % confidence interval 0.58--0.69), respectively, resulting in a predictive accuracy gain of 2.3 % (p = 0.002). Conclusions In patients with UCB and prostatic stromal invasion, cSVI adversely affected cancer-specific survival compared to patients without cSVI. The inclusion of cSVI significantly improved the predictive accuracy of our multivariable model regarding survival. Author Affiliation: (1) Department of Urology, St. Elisabeth Medical Center Straubing, Straubing, Germany (2) Department of Urology, Ludwig-Maximilians-University Munich, Munich, Germany (3) Department of Urology, Caritas St. Josef Medical Center, University of Regensburg, Regensburg, Germany (4) Department of Urology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany (5) Department of Urology, Marienhospital Herne, Ruhr-University Bochum, Herne, Germany (6) Department of Urology, General Hospital of Bolzano, Bolzano, Italy (7) Department of Urology, University Hospital "Carl Gustav Carus", Dresden Technical University, Dresden, Germany (8) Department of Urology, Goethe-University Frankfurt, Frankfurt am Main, Germany (9) Department of Urology, Vivantes Medical Center Im Friedrichshain and Am Urban, Berlin, Germany (10) Department of Urology, 2nd Faculty of Medicine and Motol University Hospital, Prague, Czech Republic (11) Department of Urology, Kassel Medical Center, Kassel, Germany (12) Division of Urology, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA (13) Department of Urology, Paracelsus Medical Center Golzheim, Dusseldorf, Germany Article History: Registration Date: 17/05/2014 Received Date: 17/03/2014 Online Date: 04/06/2014 Article note: Matthias May and Sabine Brookman-May contributed equally to this article, and both should be considered first author.
    Keywords: Adjuvant Chemotherapy – Analysis ; Mortality – Analysis ; Carcinoma – Analysis;
    ISSN: 1068-9265
    E-ISSN: 1534-4681
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  • 8
    In: Current Opinion in Urology, 2019, Vol.29(2), pp.89-95
    Description: PURPOSE OF REVIEW: To give an overview about state-of-the-art antibiotic prophylaxis in urolithasis therapy and focus on recent publications in this field. RECENT FINDINGS: The number of high-quality publications within the recent time is limited. Preoperative inflammatory blood parameters like C-reactive protein and erythrocyte-sedimentation rate might help in prediction of postoperative systemic inflammatory response syndrome (SIRS) after percutaneous nephrolithotomy (PCNL). White blood cell count is nonpredictive for urinary tract infection (UTI) in patients with acute renal colic. In patients with low risk for infectious complications, antibiotic prophylaxis during shock-wave lithotripsy (SWL) is unnecessary and single-dose antibiotics are comparably effective as prolonged antibiotic usage during PCNL and ureterorenoscopy (URS). SUMMARY: Current findings support the American Urological Association (AUA) and European Association of Urology (EAU) guideline recommendations for a risk-adapted minimal antibiotic usage. Single-dose antibiotic prophylaxis is sufficient for low-risk PCNL and URS. For SWL no antibiotic prophylaxis is needed.
    Keywords: Antibiotics -- Dosage And Administration ; Urinary Stones -- Drug Therapy ; Urinary Stones -- Research;
    ISSN: 0963-0643
    E-ISSN: 14736586
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  • 9
    Language: English
    In: Urologia internationalis, 2019, Vol.103(3), pp.326-330
    Description: It is unclear whether endoscopic assessment of the stone-free rate after flexible ureteroscopy (fURS) is as effective as assessment with low-dose computed tomography (CT) scan. Prospective documentation of patients with kidney stones 〉 10 mm diameter from 2 different centers (Freiburg, Regensburg), who underwent fURS and were declared to be endoscopically completely stone-free. Low-dose CT control performed 4-8 weeks postoperatively. Thirty-eight patients were treated between October 2015 and August 2016 (12 F, 26 M). Average age was 55.9 years (range 19-82, SD 17.24), and body mass index was 29.7 kg/m2 (range 23.5-42.5, SD 4.37). There were 2.0 (range 1-7, SD 1.55) stones with a mean diameter of 15 mm (range 10-40, SD 6.78) per kidney. Mean surgery time was 74 min (range 38-124, SD 24.28), and lithotripsy was necessary in 33 cases. CT was performed 5.4 weeks afterwards (range 4-8, SD 1.43). One patient had a 2 mm residual which was extracted by URS. Strictly speaking, endoluminal stone removal control failed in only that patient, yielding a negative predictive value of 97%. A routine postoperative CT scan would thus appear unnecessary in the case of negative endoscopic control for residual fragments and should be avoided to reduce radiation exposure. Further investigations with larger patient populations are necessary.
    Keywords: Flexible Ureteroscopy ; Lithotripsy ; Low-Dose Computed Tomography ; Parenchymal Calcification ; Stone-Free Rate ; Ureteroscopy ; Urolithiasis
    ISSN: 00421138
    E-ISSN: 1423-0399
    Source: MEDLINE/PubMed (U.S. National Library of Medicine)
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  • 10
    Language: English
    In: Journal of pediatric urology, 25 September 2019
    Description: Ureteroureterostomy is a commonly adopted, minimally invasive approach in the management of duplex anomalies requiring diversion, e.g., ectopic upper pole ureters. The authors hypothesized that a large diameter of the donor ureter could affect the outcome of this procedure. Forty-two patients from two centers were retrospectively reviewed. To compare patients with small (group 1) vs large donor ureters (group 2), they were split at the median of the sonographically measured diameter at the level of the future anastomosis... There was no significant difference in operation time (127 vs 121 min; P = 0.59) or duration of hospital stay (4.15 vs 4.09 days; P = 0.89) or number of postoperative complications (3 febrile urinary tract infections [fUTIs] in group 1 and one fUTI in... After its first description in 1928, it took almost 40 years for ipsilateral ureteroureterostomy to become a widely adopted technique in the management of duplex malformations, especially for obstructive or ectopic upper pole moieties. Whereas it has... A donor ureter diameter ≥1.2 cm in ureteroureterostomy was not associated with a higher complication rate or worse outcome considering further fUTIs or reoperations. The postoperative reduction in hydronephrosis grade was more pronounced in patients with...
    Keywords: Ureteroureterostomy ; Duplex Kidney ; Complication ; Ureter;
    ISSN: 14775131
    E-ISSN: 1873-4898
    Source: MEDLINE/PubMed (U.S. National Library of Medicine)
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