Search results for "STEC"
showing 10 items of 286 documents
Analisi delle varianti rare del carcinoma a cellule uroteliali della vescica nei Pazienti sottoposti a cistectomia radicale: impatto sulla prognosi.
2013
Effect of electron beam irradiation and plastic deformation on molar mass of medical grade ultra-high molecular weight polyethylene
2010
Badano wpływ sterylizacji metodą napromieniania strumieniem elektronów oraz deformacji plastycznej (zgniatania, rys. 1) polietylenu ultrawielkocząsteczkowego (UHMW-PE), stosowanego do wytwarzania panewek endoprotez stawu biodrowego, na masę molową polimeru. Stwierdzono, że sterylizacja wpływa na utleniającą destrukcję makrocząsteczek polimeru, której stopień zależy od użytej dawki promieniowania (zmniejszenie masy molowej masowo średniej). Procesowi temu towarzyszy sieciowanie makrocząsteczek (wzrost udziału frakcji nierozpuszczalnej). Z kolei sama deformacja plastyczna wydaje się nie mieć wyraźnego wpływu na proces degradacji. Tymczasem łączne zastosowanie obydwu czynników zewnętrznych pro…
Endoureterotomy with the Lovaco technique for treatment of ureterointestinal strictures: outcomes in an experienced center and factors associated wit…
2021
INTRODUCTION The study aimed to present the outcomes of an endoureterotomy series using the Lovaco technique for the treatment of ureterointestinal strictures. Factors influencing the success or failure of this technique were also determined. MATERIALS AND METHODS Data were collected from all endoureterotomies for ureterointestinal strictures performed in a single-center between 2017 and 2020. Clinical variables and characteristics of the stricture were recorded in each case, and success was defined as the complete resolution of ureterohydronephrosis. Univariate analysis was used to correlate the variables recorded with procedural success or failure. RESULTS A total of 25 patients were recr…
Superior mesenteric vein thrombosis following open right hemicolectomy and cholecystectomy. Case report
2020
INTRODUZIONE: La SMVT è una seria, rara complicanza della chirurgia addominale. I fattori di rischio sono molteplici, ma scarsamente descritti tanto che i dati sono insufficienti per creare gold standard per la diagnosi e trattamento. La SMVT ha un ampio spettro di presentazioni cliniche, così che spesso la sua diagnosi precoce può essere complessa. CASE REPORT: Una donna obesa di 56 anni con un disordine protrombotico ereditario è stata sottoposta ad emicolectomia destra e colecistectomia open; l’immediato decorso post-operatorio è stato regolare e la paziente è stata dimessa in quinta giornata post-operatoria. In ottava giornata post-operatoria la paziente ha presentato dolore addominale …
LA CISTECTOMIA “PROSTATE E SEMINAL SPARING” Pro: (Trieste) Contro: V. Serretta (Palermo)
2013
Il tumore della vescica rimane una delle neoplasie più frequenti nell’ambito dell’oncologia urologica. Le strategie diagnostiche si stanno sempre più evolvendo e ci permettono di caratterizzare sempre meglio la neoplasia. Durante il corso verranno illustrate alcune nuovissime tecniche diagnostiche apparse recentemente. Dal punto di vista terapeutico l’intervento chirurgico demolitivo, la cistectomia, è sicuramente l’approccio di scelta per i tumori non muscolo invasivi ad alto ed altissimo rischio e per i tumori infiltranti. Tuttavia le tecniche si sono evolute come pure la preparazione del paziente. Durante il corso verranno discusse e dibattute due delle più interessanti e recenti tecnich…
Virtual Reality Simulator Training of Laparoscopic Cholecystectomies — A Systematic Review
2012
Background and Aims: Simulators are widely used in occupations where practice in authentic environments would involve high human or economic risks. Surgical procedures can be simulated by increasingly complex and expensive techniques. This review gives an update on computer-based virtual reality (VR) simulators in training for laparoscopic cholecystectomies. Materials and Methods: From leading databases (Medline, Cochrane, Embase), randomised or controlled trials and the latest systematic reviews were systematically searched and reviewed. Twelve randomised trials involving simulators were identified and analysed, as well as four controlled studies. Furthermore, seven studies comparing black…
Resiliencia en el consumo de agua por parte de abastecimientos y regadíos ante las sequías en el Sureste de España
2020
El objeto de estudio es analizar y comparar cómo responden regantes y abastecimientos a situaciones de sequía en el Sureste de España en el siglo XXI, con el ejemplo de las de 2005-2008 y 2017-2018. Metodológicamente es un estudio de geografía regional con análisis cualitativo y cuantitativo, diacrónico y comparado, y trabajo de campo. Entre las fuentes utilizadas sobresalen la consulta de archivos históricos, los datos de AEMET, los consumos de agua en abastecimientos y regadíos, y las entrevistas a gestores y usuarios. La respuesta ante las sequías del siglo XXI ha sido dispar. En la de 2005-2008, en el regadío hubo que reducir la superficie de arbolado; en abastecimientos, se recurrió a …
Analítica o evocadora: el debate olvidado de la autoetnografía
2016
Existe la necesidad de una estrategia metodológica eficaz para sostener la investigación sobre la práctica profesional de los servicios sociales. La oposición entre el trabajo autoetnográfico de Carolyn ELLIS y Arthur BOCHNER (2000, 2006) y la propuesta analítica de Leon ANDERSON sirven como una lente a través de la cual explorar los aspectos clave de esta discusión. Mientras ELLIS y BOCHNER rechazan cualquier intento de abstracción o sistematización teórica, ANDERSON pretende tender puentes entre la tradición etnográfica y las formas emergentes de narrativa personal. Después de revisar la literatura autoetnográfica, concluyo que si bien la autoetnografía evocadora parece gozar del apoyo ma…
Gnotobiotische untersuchungen an SPF-Mäusen im rahmen einer studie zur tumorentwicklung im kolon nach cholezystektomie
1985
Summary The relation between cholecystectomy and colon carcinogenesis has not been fully elucidated. As bacteria may be involved in the carcinogenic process, we investigated the effect of cholecystectomy and dimethylhydrazine (DMH) administration to SPF NMRI mice with regard to tumour genesis and bacterial colonisation of the intestine. It results from this study that cholecystectomy does not influence tumour genesis and that 6–7 months post operationem and DMH administration tumours and bacteria originally not found in the animals develop: Clostridia, eubacteria spec, which cannot be differentiated and E. lentum. Theses changes appear in group II of mice (laparotomy and DMH) and group III …
Impact of stage migration on bladder cancer: A slow but steady improvement in the long term survival rates after radical cystectomy in the last 25 ye…
2016
INTRODUCTION & OBJECTIVES: Bladder cancer (BCa) is a heterogeneous disease with up to 25% of incidental diagnoses reported to be found muscle invasive at first episode. Numerous markers and an increased awareness have been recorded in the recent years. We sought to evaluate if those considerat ions may determine a change in BCa clinical presentation at radical cystectomy (RC) over years in a single high volume tert iary referral center. MATERIAL & METHODS: The study relied on 2,003 consecutive BCa pat ients treated with RC and extended pelvic lymphadenectomy (PLND) at a single inst itution between January 1990 and December 2014. Pat ients were st ratified into tertiles according to …