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Hagen am Teuteburger Wald, Germany

Berger I.,Landesklinikum Wiener Neustadt | Wehrberger C.,Donauspital | Ponholzer A.,Krankenhaus der Barmherzigen Bruder | Wolfgang M.,Landesklinikum St. Polten | And 12 more authors.
Urologia Internationalis

Objective: A potential strategy to decrease the high complication rate of radical cystectomy (RC) in the elderly is to avoid the use of bowel for urinary diversion. The aim of this study was to address this issue in a multicentre study of patients aged ≥75 years. Patients and Methods: We performed a retrospective, multicentre study of a consecutive series of patients aged ≥75 years who underwent RC for muscle-invasive bladder cancer between 2006 and 2010. Medical, surgical and wound complications were graded according to the modified Clavien-Dindo classification. Results: A total of 256 patients (68% men, mean age 79.6 years) were analysed. 204 (80%) patients received a urinary diversion with use of bowel and 52 (20%) a ureterocutaneostomy (UC). Patients with UC were older (82.0 vs. 78.9 years, p < 0.001) and had a higher ASA score (2.6 vs. 2.3, p = 0.007), while the mean Charlson score was lower (4.2 vs. 5.6, p < 0.001). Patients with UC had a shorter operating time (279 vs. 311 min, p = 0.002) and a shorter period in the intensive care unit (0.9 vs. 2.2 days). The overall rate of severe complications graded as Clavien III-V was significantly lower in the UC group (11.5%) as compared to patients receiving bowel for urinary diversion (25.0%) (p = 0.003). Severe (Clavien grade III-V) medical (3.9 vs. 10.3%) and surgical (2.1 vs. 14.1%) complications were all less frequent in the UC group. Inpatient, 30- and 90-day mortality was 5.8, 7.7 and 17.3% in the UC group as compared to 3.9, 5.9 and 6.9% in the bowel cohort, respectively. Conclusion: UC following RC is associated with a lower complication rate in geriatric patients. The constantly increasing cohort of geriatric, multimorbid patients requiring cystectomy might justify reconsideration of this form of diversion. © 2015 S. Karger AG, Basel. Source

Riambau V.,Hospital Clinic | Zipfel B.,Deutsches Herzzentrum Berlin | Coppi G.,Nuovo Ospedale santAgostino Estense | Czerny M.,Allgemeines Krankenhaus | And 5 more authors.
Journal of Vascular Surgery

Purpose: Thoracic endovascular aortic repair is increasingly becoming the standard treatment of many thoracic aortic pathologies. New reliable and accurate stent grafts are emerging to widen the endovascular treatment options. We report the results of RELAY (Bolton Medical, Barcelona, Spain) in the large RELAY Endovascular Registry for Thoracic Disease (RESTORE) European registry. Methods: RESTORE is a multicenter, prospective European registry involving 22 centers in seven European countries. The RELAY device is composed of a stent graft (self-expanding nitinol stents and a polyester vascular graft) and a delivery device specifically designed for the thoracic aorta. Included were acute and elective patients presenting with a variety of pathologies (aneurysms, dissections, ulcerations, intramural hematomas, pseudoaneurysms) and lesions in different aortic and anatomic locations (ascending, arch, descending and thoracoabdominal). Results: The registry enrolled 304 patients from April 2005 to January 2009. All-cause mortality at 30 days was 7.2%. Freedom from all cause mortality and freedom from device- and procedure-related mortality at 2 years were 78.5% and 95.9%, respectively. An average of 1.26 graft components were used per patient, with a technical success of 97.7% irrespective of the etiology. Early endoleak rate was 4.6%. Perioperatively, stroke and paraplegia were registered in 1.6% and 2.0%, respectively. Conclusions: The results of RESTORE support the safety of thoracic endovascular aortic repair with the RELAY stent graft, even in acute and complicated situations. The device was highly efficient in angulated aortic anatomies, with acceptable mortality and a low rate of neurologic complications. © 2011 Society for Vascular Surgery. Source

Goltz J.P.,University of Wurzburg | Schmid J.S.,University of Wurzburg | Ritter C.O.,University of Wurzburg | Knodler P.,University of Wurzburg | And 4 more authors.
Journal of Vascular Access

Purpose: To identify risk factors for the development of catheter-related thrombosis (CRT) in patients with totally implantable venous access ports (TIVAP) in the forearm, and to analyze the effect of prophylaxis and treatment. Methods: We retrospectively identified 200 patients (94 men, 106 women, mean age 57.7 +/-14 y) with TIVAP implantation in the forearm between 3/2010 and 11/2010. Type, number of punctures and sonographically defined diameter of the accessed vein were analyzed. Chemotherapy administered prior to the implantation procedure and history of thrombo-embolic events were assessed. Thrombo-embolic prophylaxis (TEP) following port implantation and treatment as well as course of CRT were analyzed. Results: Twenty-one patients (10.5%) were diagnosed with CRT. Accessed vessels and mean diameter were basilic (n=150, 3.7 mm), brachial (n=39, 3.5 mm) and cephalic (n=11, 3.5 mm) vein. Neither type nor vessel diameter had effect on CRT development (P>.05). Implantation in the left forearm resulted in a significantly higher rate of CRT (P=.04). Ninety-five patients (47.5%) received chemotherapy and 30 patients (15.0%) had a history of thrombosis prior to implantation; both had no effect on development of CRT. Low molecular weight heparin (LMWH) was prescribed in 94/200 patients (47.0%) and had no effect on development of CRT (P>.05). Therapeutic anticoagulation with LMWH resulted in clinical improvement in 12/21 patients (57.4%). Conclusions: TIVAPs of the forearm may be associated with a certain rate of early and late CRT. The simplest vein to puncture should be selected for vascular access. Thrombo-embolic prophylaxis appears to be rather ine ffective for prevention of CRT. © 2011 Wichtig Editore. Source

Schoenfeld A.A.,Carl von Ossietzky University | Poppinga D.,Carl von Ossietzky University | Harder D.,University of Gottingen | Doerner K.-J.,Allgemeines Krankenhaus | Poppe B.,Carl von Ossietzky University
Physics in Medicine and Biology

Optical experiments and theoretical considerations have been undertaken in order to understand the causes of the 'orientation effect' and the 'parabola effect', the artefacts impairing the desired light absorption measurement on radiochromic EBT3 films with flatbed scanners. EBT3 films exposed to doses up to 20.9 Gy were scanned with an Epson Expression 10000XL flatbed scanner in landscape and portrait orientation. The horizontally and vertically polarized light components of the scanner were determined, and another Epson Expression 10000XL flatbed scanner was disassembled to examine its optical components. The optical properties of exposed and unexposed EBT3 films were studied with incident polarized and unpolarized white light, and the transmitted red light was investigated for its polarization and scattering properties including the distribution of the scattering angles. Neutral density filters were studied for comparison. Guidance was sought from the theory of light scattering from rod-like macromolecular structures. The drastic dose-dependent variation of the transmitted total light current as function of the orientation of front and rear polarizers, interpreted by light scattering theory, shows that the radiation-induced polymerization of the monomers of EBT3 films produces light scattering oscillators preferably polarized at right angles with the coating direction of the film. The directional distribution of the scattered light is partly anisotropic, with a preferred scattering plane at right angles with the coating direction, indicating light scattering from stacks of coherently vibrating oscillators piled up along the monomer crystals. The polyester carrier film also participates in these effects. The 'orientation' and 'parabola' artefacts due to flatbed scanning of radiochromic films can be explained by the interaction of the polarization-dependent and anisotropic light scattering from exposed and unexposed EBT3 films with the quantitative difference between the scanner's horizontally and vertically polarized light supply and with the limited directional acceptance of the scanner's light recording system. © 2014 Institute of Physics and Engineering in Medicine. Source

Hensel F.,Patrys GmbH | Timmermann W.,Allgemeines Krankenhaus | Von Rahden B.H.A.,University of Wurzburg | Rosenwald A.,University of Wurzburg | And 2 more authors.
Oncology Reports

The fully human monoclonal antibody PAT-SC1 is specific for an isoform of CD55 (decay-accelerating factor) designated CD55PAT-SC1. This antigen is expressed in the majority (80%) of gastric cancers (GCs), and the antibody induces tumour cell-specific apoptosis in vitro as well as in vivo. PAT-SC1, therefore, has been deemed promising as a therapeutic agent. Here, we describe the results of an academic clinical study performed in a neoadjuvant setting with resectable GC patients. Patients undergoing treatment for GC between 1997 and 2001 were tested for CD55PAT-SC1 expression. Fifty-one resectable patients that tested positively received a single administration of 20 mg PAT-SC1 48 h prior to surgery. They underwent standard surgery with either subtotal or total gastrectomy with bursectomy, omentectomy and a modi- fied D2-lymphadenectomy, aimed at R0 resection. Primary endpoints of the present study were to evaluate side-effects of the PAT-SC1 antibody treatment and to evaluate histopathological effects such as tumour regression and induction of apoptosis. Long-term survival was a secondary endpoint. Administration of PAT-SC1 appeared safe with only reversible side-effects according to WHO grade I and II. Despite the low-dose of the antibody, 81.6% of the patients showed signs of increased apoptosis within the primary tumour and 60% showed signs of tumour cell regression. Comparison of the 10-year survival rates of the R0-resected CD55PAT-SC1-positive patients treated with the PAT-SC1 antibody with a historical collective of R0-resected CD55PAT-SC1- positive patients not treated with PAT-SC1 indicated a survival benefit in the treated patients. Furthermore, comparison of the patient survival of CD55 PAT-SC1-positive vs. CD55PAT-SC1-negative groups suggested that CD55PAT-SC1 antigen expression is an independent predictor of poor survival in a Cox regression analysis. Antibody PAT-SC1 may be a useful additive therapeutic agent in the treatment of patients with CD55 PAT-SC1-expressing GCs. In combination with radical standard surgery, PAT-SC1 given as an adjuvant or neoadjuvant immunotherapeutic agent induces apoptosis in tumour cells which may improve survival of these patients. Because of the human origin and its specific binding to the CD55PAT-SC1 antigen, PAT-SC1 was well tolerated in this trial. Source

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