Análisis de eventos adversos en los servicios de cirugía general y aparato digestivo. Estudio multicéntrico / Analysis of adverse events in general surgery: A multicenter study

Introducción: El conocimiento de los eventos adversos (EA) en los hospitales de agudos es un aspecto de especial relevancia en la seguridad del paciente. Su incidencia oscila entre un 3-17% y la cirugía se relaciona con la aparición de entre un 46-65% de todos los EA. Material y métodos: Se realiza un estudio observacional, descriptivo, retrospectivo y multicéntrico, con la participación de 31 hospitales de agudos españoles, para la determinación y análisis de los EA en los servicios de cirugía general. Resultados: La prevalencia de EA fue del 31,53%. Los tipos de EA más frecuentes fueron de tipo infeccioso (35%). Los pacientes con mayores grados de ASA, mayor complejidad y un tipo de ingreso urgente son factores asociados a la presencia de EA. A la mayoría de los pacientes se les atribuyó una categoría de daño F (daño temporal al paciente que requiera iniciar o prolongar la hospitalización) (58,42%). El 14,69% de los EA son considerados graves. El 34,22% de los EA se consideraron evitables. Conclusiones: La prevalencia de EA en los pacientes de cirugía general y del aparato digestivo (CGAD) es elevada. La mayor parte de los EA fueron de tipo infeccioso. El EA más frecuente fue la infección de herida o sitio quirúrgico. Los pacientes con mayores grados de ASA, mayor complejidad y un tipo de ingreso urgente son factores asociados a la presencia de EA. La mayoría de los EA detectados han supuesto un daño leve o moderado sobre los pacientes. Alrededor de un tercio de EA fueron evitables.(AU)

Introduction: Knowledge of adverse events (AE) in acute care hospitals is a particularly relevant aspect of patient safety. Its incidence ranges from 3% to 17%, and surgery is related to the occurrence of 46%-65% of all AE. Material and methods: An observational, descriptive, retrospective, multicenter study was conducted with the participation of 31 Spanish acute-care hospitals to determine and analyze AE in general surgery services. Results: The prevalence of AE was 31.53%. The most frequent types of AE were infectious (35%). Higher ASA grades, greater complexity and urgent-type admission are factors associated with the presence of AE. The majority of patients (58.42%) were attributed a category F event (temporary harm to the patient requiring initial or prolonged hospitalization); 14.69% of AE were considered severe, while 34.22% of AE were considered preventable. Conclusions: The prevalence of AE in General and GI Surgery (GGIS) patients is high. Most AE were infectious, and the most frequent AE was surgical site infection. Higher ASA grades, greater complexity and urgent-type admission are factors associated with the presence of AE. Most detected AE resulted in mild or moderate harm to the patients. About one-third of AE were preventable.(AU)

Ureteral Stenosis and Fistula after Kidney Transplantation.

INTRODUCTION: Ureteral complications after kidney transplantation are frequent and may have a negative impact on morbidity and graft function. Treatment modalities include conservative, endourological, and surgical techniques, with variable outcomes. The purpose of this study was to report the incidence, characteristics, treatment, and outcomes of ureteral complications at our center. METHODS: Retrospective study of kidney transplants performed at our unit between 2015 and 2020, analyzing incidence, characteristics, treatment, and outcomes of ureteral stenoses and fistulas. RESULTS: Of 648 kidney transplants, we present 3.24% stenosis and 2.16% ureteral fistulas, with a mean time from transplantation of 101.4 and 24.4 days, respectively. Primary treatment was open surgical repair in 52.4% stenosis and 100% fistulas, with a success rate of 90.9% and 71.4%, respectively. Anterograde balloon dilatations were performed in 33.3% of stenosis with 40% success. Three patients required surgery as a secondary approach with 100% success. Major complications (Clavien-Dindo III) were observed in 18.5% following surgical repair. After a mean follow-up of 31.1 ± 20.9 months, we observe 88.6% of functioning grafts. We found no significant differences in graft survival between patients with or without ureteral complications (p 0.948). CONCLUSION: Surgical repair of ureteral complications offers satisfactory results with low associated morbidity. Endourological techniques are less effective and should be reserved for selected cases. With adequate management, there is no impact on graft survival.

Reparación de aneurisma complejo de arteria renal izquierda: nefrectomía laparoscópica, reconstrucción en banco y autotrasplante heterotópico / Repair of complex left renal artery aneurysm: laparoscopic nephrectomy, ex vivo reconstruction and heterotopic autotransplantation

Los aneurismas de la arteria renal son entidades clínicas poco frecuentes. Si bien la mayoría de casos son asintomáticos y se detectan incidentalmente, su rotura se asocia a elevadas tasas de mortalidad y de pérdida del riñón, lo que afecta a los supervivientes. Aunque la mayoría de estos aneurismas pueden tratarse mediante técnicas de reparación endovascular o in situ, esto puede no ser posible en pacientes con aneurismas complejos, como aquellos localizados en la bifurcación arterial. Presentamos el caso de un aneurisma renal complejo tratado satisfactoriamente mediante nefrectomía laparoscópica, reconstrucción vascular en banco y autotrasplante heterotópico.(AU)

renal artery aneurysms are rare clinical entities. While most cases are asymptomatic and detected incidentally, rupture is associated with high mortality rates and loss of the aff ected kidney in survivors. although most of these aneurysms can be treated by endovascular or in situ repair techniques, this may not be possible in patients with complex aneurysms, such as those located at the arterial bifurcation. We present a case of complex renal aneurysm successfully treated by laparoscopic nephrectomy, ex vivo vascular reconstruction, and heterotopic autotransplantation.(AU)

Predictive Power of the "Trigger Tool" for the detection of adverse events in general surgery: a multicenter observational validation study.

BACKGROUND: In spite of the global implementation of standardized surgical safety checklists and evidence-based practices, general surgery remains associated with a high residual risk of preventable perioperative complications and adverse events. This study was designed to validate the hypothesis that a new "Trigger Tool" represents a sensitive predictor of adverse events in general surgery. METHODS: An observational multicenter validation study was performed among 31 hospitals in Spain. The previously described "Trigger Tool" based on 40 specific triggers was applied to validate the predictive power of predicting adverse events in the perioperative care of surgical patients. A prediction model was used by means of a binary logistic regression analysis. RESULTS: The prevalence of adverse events among a total of 1,132 surgical cases included in this study was 31.53%. The "Trigger Tool" had a sensitivity and specificity of 86.27% and 79.55% respectively for predicting these adverse events. A total of 12 selected triggers of overall 40 triggers were identified for optimizing the predictive power of the "Trigger Tool". CONCLUSIONS: The "Trigger Tool" has a high predictive capacity for predicting adverse events in surgical procedures. We recommend a revision of the original 40 triggers to 12 selected triggers to optimize the predictive power of this tool, which will have to be validated in future studies.

[Late kidney transplant complications treatment.] / Tratamiento de las complicaciones tardías del trasplante renal.

OBJECTIVES: Late kidney transplant complication might compromise graft durability, thus the need for early detection and treatment. MATERIAL AND METHODS: A PubMed review including the following MeSH terms was included: kidney transplant¨, ¨complications¨, ¨vascular complications¨,¨transplant renal artery stenosis¨, ¨ureteral obstruction¨,¨urologic complications¨, ¨forgotten stent¨, ¨vesicoureteralreflux¨, ¨urinary lithiasis¨ e ¨incisional hernia¨. Metanalysis and systematic review in spanish and English were included from January 2015 till February 2021, as well as relevant selected manuscripts. RESULTS: We defined as late complications those appearing at 3 months from kidney transplant. Those include vascular complications (renal artery stricture), urinary tract (ureteral stricture, permanent double Js, pyelonephritis due to reflux, urinary stones) and abdominal wall (incisional hernia). CONCLUSIONS: Late kidney transplant complications remain high still with advancement on surgical technique and immunotherapy. Those complication might compromise the graft durability and so early detection is or primary importance.

OBJETIVO: Las complicaciones tardías del trasplante renal pueden comprometer de manera importante la viabilidad del injerto, por lo que debemos detectarlas y tratarlas de manera precoz.MATERIAL Y MÉTODOS: Realizamos una revisión bibliográfica en PubMed utilizando los términos MeSH ¨kidney transplant¨, ¨complications¨, ¨vascular complications¨, ¨transplant renal artery stenosis¨, ¨ureteralobstruction¨, ¨urologic complications¨, ¨forgotten stent¨,¨vesicoureteral reflux¨, ¨urinary lithiasis¨ e ¨incisionalhernia¨. Se incluyeron metaanálisis, revisiones y revisiones sistemáticas en inglés y español, desde enero de2015 hasta febrero de 2021, así como las referencias más relevantes incluidas en los artículos seleccionados. RESULTADOS: Definimos como complicaciones tardías aquellas que suelen aparecer a partir del tercer mes trasla realización del trasplante. Dentro de ellas se incluyen complicaciones vasculares (estenosis de la arteria renal), de la vía urinaria (estenosis ureteral, catéteres ureterales no retirados, pielonefritis secundarias a reflujovesico-ureteral y litiasis urinaria) y de pared (hernia incisional). CONCLUSIONES: A pesar de los avances, tanto médicos (inmunosupresión) como en la técnica quirúrgica, en el trasplante renal, todavía son frecuentes las complicaciones a largo plazo. Estas complicaciones pueden comprometer la viabilidad del injerto renal, lo que hace necesario que sean detectadas lo antes posible, y no demorar su tratamiento.

Tratamiento de las complicaciones tardías del trasplante renal / Treatment of late complications of renal transplantation

Objetivo: Las complicaciones tardíasdel trasplante renal pueden comprometer de maneraimportante la viabilidad del injerto, por lo que debemosdetectarlas y tratarlas de manera precoz.Materiales y métodos: Realizamos una revisión bibliográfica en PubMed utilizando los términos MeSH ̈kidney transplant ̈, ̈complications ̈, ̈vascular complications ̈, ̈transplant renal artery stenosis ̈, ̈ureteralobstruction ̈, ̈urologic complications ̈, ̈forgotten stent ̈, ̈vesicoureteral reflux ̈, ̈urinary lithiasis ̈ e ̈incisionalhernia ̈. Se incluyeron metaanálisis, revisiones y revisiones sistemáticas en inglés y español, desde enero de2015 hasta febrero de 2021, así como las referenciasmás relevantes incluidas en los artículos seleccionados. Resultados: Definimos como complicaciones tardíasaquellas que suelen aparecer a partir del tercer mes trasla realización del trasplante. Dentro de ellas se incluyen complicaciones vasculares (estenosis de la arteriarenal), de la vía urinaria (estenosis ureteral, catéteresureterales no retirados, pielonefritis secundarias a reflujo vesico-ureteral y litiasis urinaria) y de pared (herniaincisional).Conclusiones: A pesar de los avances, tanto médicos (inmunosupresión) como en la técnica quirúrgica,en el trasplante renal, todavía son frecuentes las complicaciones a largo plazo. Estas complicaciones puedencomprometer la viabilidad del injerto renal, lo que hacenecesario que sean detectadas lo antes posible, y nodemorar su tratamiento.(AU)

Objetives: Late kidney transplant complication might compromise graft durability, thus theneed for early detection and treatment.Material and methods: A PubMed review including the following MeSH terms was included: kidneytransplant ̈, ̈complications ̈, ̈vascular complications ̈, ̈transplant renal artery stenosis ̈, ̈ureteral obstruction ̈, ̈urologic complications ̈, ̈forgotten stent ̈, ̈vesicoureteral reflux ̈, ̈urinary lithiasis ̈ e ̈incisional hernia ̈. Metanalysis and systematic review in spanish and Englishwere included from January 2015 till February 2021,as well as relevant selected manuscripts. Results: We defined as late complications those ap-pearing at 3 months from kidney transplant. Those include vascular complications (renal artery stricture),urinary tract (ureteral stricture, permanent double Js, pyelonephritis due to reflux, urinary stones) and abdominalwall (incisional hernia).Conclusions: Late kidney transplant complicationsremain high still with advancement on surgical techniqueand immunotherapy. Those complication might compromise the graft durability and so early detection is or primary importance.(AU)

Observational study over 8-year period evaluating microbiological characteristics and risk factor for isolation of multidrug-resistant organisms (MDRO) in patients with healthcare-associated infections (HAIs) hospitalized in a urology ward.

Objective: To analyze, in a urology ward, the prevalence and characteristics of healthcare-associated infections (HAIs) due to multidrug-resistant organisms (MDRO). Methods: We carried out an observational study from 2012 to 2019, evaluating MDRO among patients with HAIs, who were hospitalized in the urology ward. MDRO include Pseudomonas spp., resistant to at least three antibiotic groups, extended-spectrum beta-lactamase (ESBL) producing Enterobacteriaceae or those resistant to carbapenems, and Enterococcus spp. resistant to vancomycin. Results: Among patients with HAIs, MDRO were isolated in 100 out of 438 (22.8%) positive cultures. Univariate and multivariate analyses reported that prior urinary tract infection (UTI) [OR 2.45; 95% CI 1.14-5.36; p=0.021] and immunosuppression [OR 2.13; 95% CI 1.11-4.10; p=0.023] were risk factors for MDRO. A high prevalence of MRDO was found in patients with a catheter in the upper urinary tract; 27.6% for double J stent, 29.6% in those with a nephrostomy tube, and 50% in those with a percutaneous internal/external nephroureteral (PCNU) stent. MDRO were isolated in 28.4% of cultures with Enterobacteriaceae (23.8% and 44.7% in those with E. coli and Klebsiella spp.); 7% of Enterobacteriaceae showed resistance to carbapenems (1.3% and 10% for E. coli and Klebsiella spp., respectively). Three out of 80 Enterococcus spp. were vancomycin-resistant. The rate of Pseudomonas aeruginosa resistant to at least three antibiotic groups was 36.3%. Conclusions: The isolation of MDRO, in up to 25% of positive cultures in a urology ward, constitutes a challenge for the selection of antibiotics. MDRO are more common in immunosuppressed patients, those with previous UTIs, and those with a catheter in the upper urinary tract.

Iterative renal transplantation: our experience on third transplants.

PURPOSE: To report our experience on third kidney transplantation, analyzing the complications and graft survival rates as compared to previous transplants. METHODS: Retrospective study of third renal transplants performed at our center. Outcomes were compared with a cohort of first and second transplants. RESULTS: Of a total of 4143, we performed 72 third transplants in 46 men and 26 women with an average age of 46 years and mean time on dialysis of 70 months. Thirty-seven patients were hypersensitized [panel-reactive antibody (PRA) > 50%]. They were all from deceased donors, with a mean cold ischemia time of 19.2 h. The extraperitoneal heterotopic approach was used in 88.8%, transplantectomy was performed in 80.6% and vascular anastomoses were realized mostly to external iliac vessels, using the common iliac artery in 15 cases, and the inferior vena cava in 16. The main ureteral reimplantation technique was the Politano-Leadbetter (76.4%). Third transplantation reported a significantly higher incidence of lymphocele (13.9% vs. 3.2% in first and 4.5% in second transplants; p < 0.001), rejection (34.7% vs. 14.9% and 20.5%, p < 0.001) and urinary obstruction (11.1% vs. 3.6% and 6.3%, p 0.002). Graft survival rates for first, second and third transplants were 87%, 86% and 78% at 1 year, 83%, 82% and 74% at 3 years and 80%, 79% and 65% at 5 years, respectively. CONCLUSION: Iterative transplantation constitutes a valid therapeutic option with adequate surgical and survival results compared to previous transplants. It is a challenging procedure which must be performed by experienced surgeons.

The challenge of pseudomonas aeruginosa related infections in a Urology Ward: Epidemiology, risk factors and patterns of antibiotic resistance. / El reto de las infecciones por pseudomonas aeruginosa en un Servicio de Urología: epidemiología, factores de riesgo y patrones de resistencia a antibióticos.

OBJECTIVES: Urological patients usually come up with risk factors for developing infections. Some of these are caused by multidrug-resistant microorganisms like Pseudomonas aeruginosa, whose notable resistance rates to antibiotics and aggressiveness make its treatment a challenge in clinical practice. Our objective was to analyze Pseudomonas aeruginosa infections incidence, risk factors and features in patients admitted to a Urology Ward in a tertiary care university hospital in Spain. MATERIAL AND METHODS: We carried out a prospective observational study from 2012 to 2017, to review all infections in our Ward with a special focus on those caused by Pseudomonas aeruginosa, performing a descriptive analysis and a comparison with other causative agents. RESULTS: 78 Infections with Pseudomonas aeruginosa isolation were registered during this period. Having a catheter of the upper urinary tract (CUUT) or comorbidities and undergoing surgery, were frequently observed among these patients although the results did not reach statistically significant differences for more frequent isolation compared to other pathogens. Antibiotic resistance rates were high for cephalosporins (33.3%) and quinolones (50%), while carbapenems (24.4%), aztreonam (10.3%) and amikacin (23.1%) exhibited the best activity. No deaths related to the infection were registered. CONCLUSIONS: Pseudomonas aeruginosa is commonly isolated in patients carrying a CUUT. An early suspicion of Pseudomonas aeruginosa infection and knowledge of local antibiotic resistance pattern are of paramount importance for improving the outcomes and handling this worldwide problem.

OBJETIVOS: Los pacientes urológicos se acompañan habitualmente de factores de riesgo para el desarrollo de infecciones. Algunas de éstas son causadas por microorganismos multi-resistentes como Pseudomonas aeruginosa, cuyas notables tasas de resistencia a los antibióticos y agresividad hacen de su tratamiento un reto para la práctica clínica. Nuestro objetivo fue analizar la incidencia de infecciones por Pseudomonas aeruginosa, factores de riesgo y características en pacientes ingresados en el Servicio de Urología de un hospital universitario de tercer nivel en España.MATERIALES Y MÉTODOS: Llevamos a cabo un estudio observacional prospectivo desde 2012 hasta 2017, para revisar todas las infecciones en nuestro Servicio, con especial atención en aquellas causadas por Pseudomonas aeruginosa, haciendo un análisis descriptivo y una comparación con otros agentes causales. RESULTADOS: Durante este periodo se registraron 78 infecciones por Pseudomonas aeruginosa. Frecuentemente estos pacientes portaban un catéter del tracto urinario superior, tenían comorbilidades o se habían sometido a una intervención quirúrgica, aunque ningún factor alcanzó la significación estadística para mayor frecuencia de aislamiento de Pseudomonas aeruginosa. Las tasas de resistencia antibiótica fueron altas para cefalosporinas (33,3%) y quinolonas (50%), mientras que los carbapenémicos (24,4%), aztreonam (10,3%) y amikacina (23,1%) mostraron la mejor actividad. No se registraron éxitus relacionados con estas infecciones. CONCLUSIONES: El aislamiento de Pseudomonas aeruginosa es frecuente en portadores de catéteres del tracto urinario superior. La sospecha precoz de estas infecciones y el conocimiento de los patrones locales de resistencia a antibióticos son de vital importancia para mejorar los resultados de este problema a nivel global.

The challenge of pseudomonas aeruginosa related infections. In a urology ward: epidemiology, risk factors and patterns of antibiotic resistance / El reto de las infecciones por pseudomonas aeruginosa en un Servicio de Urología: epidemiología, factores de riesgo y patrones de resistencia a antibióticos

OBJECTIVES: Urological patients usually come up with risk factors for developing infections. Some of these are caused by multidrug-resistant microorganisms like Pseudomonas aeruginosa, whose notable resistance rates to antibiotics and aggressiveness make its treatment a challenge in clinical practice. Our objective was to analyze Pseudomonas aeruginosa infections incidence, risk factors and features in patients admitted to a Urology Ward in a tertiary care university hospital in Spain. MATERIAL AND METHODS: We carried out a prospective observational study from 2012 to 2017, to review all infections in our Ward with a special focus on those caused by Pseudomonas aeruginosa, performing a descriptive analysis and a comparison with other causative agents. RESULTS: 78 Infections with Pseudomonas aeruginosa isolation were registered during this period. Having a catheter of the upper urinary tract (CUUT) or comorbidities and undergoing surgery, were frequently observed among these patients although the results did not reach statistically significant differences for more frequent isolation compared to other pathogens. Antibiotic resistance rates were high for cephalosporins (33.3%) and quinolones (50%), while carbapenems (24.4%), aztreonam (10.3%) and amikacin (23.1%) exhibited the best activity. No deaths related to the infection were registered. CONCLUSIONS: pseudomonas aeruginosa is commonly isolated in patients carrying a CUUT. An early suspicion of Pseudomonas aeruginosa infection and knowledge of local antibiotic resistance pattern are of paramount importance for improving the outcomes and handling this worldwide problema

OBJETIVOS: Los pacientes urológicos se acompañan habitualmente de factores de riesgo para el desarrollo de infecciones. Algunas de éstas son causadas por microorganismos multi-resistentes como Pseudomonas aeruginosa, cuyas notables tasas de resistencia a los antibióticos y agresividad hacen de su tratamiento un reto para la práctica clínica. Nuestro objetivo fue analizar la incidencia de infecciones por Pseudomonas aeruginosa, factores de riesgo y características en pacientes ingresados en el Servicio de Urología de un hospital universitario de tercer nivel en España. MATERIALES Y MÉTODOS: Llevamos a cabo un estudio observacional prospectivo desde 2012 hasta 2017, para revisar todas las infecciones en nuestro Servicio, con especial atención en aquellas causadas por Pseudomonas aeruginosa, haciendo un análisis descriptivo y una comparación con otros agentes causales. RESULTADOS: Durante este periodo se registraron 78 infecciones por Pseudomonas aeruginosa. Frecuentemente estos pacientes portaban un catéter del tracto urinario superior, tenían comorbilidades o se habían sometido a una intervención quirúrgica, aunque ningún factor alcanzó la significación estadística para mayor frecuencia de aislamiento de Pseudomonas aeruginosa. Las tasas de resistencia antibiótica fueron altas para cefalosporinas (33,3%) y quinolonas (50%), mientras que los carbapenémicos (24,4%), aztreonam (10,3%) y amikacina (23,1%) mostraron la mejor actividad. No se registraron éxitus relacionados con estas infecciones. CONCLUSIONES: El aislamiento de Pseudomonas aeruginosa es frecuente en portadores de catéteres del tracto urinario superior. La sospecha precoz de estas infecciones y el conocimiento de los patrones locales de resistencia a antibióticos son de vital importancia para mejorar los resultados de este problema a nivel global

Prevention of healthcare-associated infections (HAIs) in a surgical urology ward: observational study-analysis of the problem and strategies for implementation.

PURPOSE: Our purpose is to present the results of our working group, with a view to reduce the incidence and improve the management of healthcare-associated infections (HAIs) in a urology ward. METHODS: The study consists on an observational database designed with the view to analyse the incidence and characteristics of HAIs in Urology. Based on the results obtained, a critical evaluation was carried out and specific measures put in place to reduce HAIs. Finally, the impact and results of the implemented measures were periodically evaluated. RESULTS: The incidence of HAIs in urology decreased from 6.6 to 7.3% in 2012-2014 to 5.4-5.8% in 2016-2018. In patients with immunosuppression the incidence of HAIs decreased from 12.8 to 18% in 2012-2013 to 8.1-10.2% in 2017-2018, in those with a previous urinary infection fell from 13.6 to 4.8%, in those with a urinary catheter prior to admission from 12.6 to 10.8%, and in patients with a nephrostomy tube from 16 to 10.9%. The effect of the protocol also demonstrated a reduction in the percentage of patients with suspicion of HAIs for whom no culture was taken, from 6% in 2012 to zero in 2017 and 2018. Moreover, the implementation of protocols for empirical treatment has reduced the incidence of patients experiencing inadequate empirical antimicrobial therapy from 20 to 8.1%. CONCLUSION: It is essential to monitor the incidence of HAIs, and preventive measures play a useful role in reducing the rate of infection and in optimising their management.

New case of secondary bladder amyloidosis with massive hematuria-role of intravesical instillations with dimethyl sulfoxide.

Secondary bladder amyloidosis is a rare condition with less than 60 cases published in the world. It is usually secondary to chronic inflammatory processes such as rheumatologic diseases. Hematuria is its predominant and most important symptom, and usually occurs after a bladder catheterization. The diagnostic confirmation is made through a pathological and immunohistochemical study. The treatment must be staggered from less to more invasive. Our objectives are to present a new case of secondary bladder amyloidosis in a woman with a history of chronic bronchiectasis after tuberculosis and frequent super infections, whose main manifestation was a massive hematuria, and review this rare pathology. We have obtained very good initial results using intravesical instillations with dimethyl sulfoxide (DMSO) with complete resolution of the hematuria, the patient remaining asymptomatic for 6 months. After that, there was a recurrence of the hematuria that was treated with embolization of the hypogastric arteries, with good results. We can conclude that, despite being a rare condition, we must consider secondary bladder amyloidosis in patients who have already been diagnosed with systemic amyloidosis and/or chronic pathologies who develop hematuria after bladder catheterization. Based on our experience, instillations with dimethyl sulfoxide are a safe option and provide a quick and temporary resolution of hematuria symptoms.

Healthcare-Associated Infections after Lower Urinary Tract Endoscopic Surgery: Analysis of Risk Factors, Associated Microorganisms and Patterns of Antibiotic Resistance.

OBJECTIVES: To review the incidence of healthcare-associated infections/urinary tract infection (UTI), risk factors, microorganisms isolated and antibiotic resistances in patients who underwent lower urinary tract endoscopic surgery (LUTES) in a tertiary care hospital. METHODS: A prospective observational study was carried out including 1,498 patients who undergo LUTES. Patients with and without UTI after surgery were compared. We analysed infection incidence, risk factors, microorganisms isolated and antibiotic resistances. RESULTS: Postoperative UTI incidence was 4.7%. Risk factors found: higher American Society of Anesthesiologists classification (OR 2.82; 95% CI 1.8-4.5; p < 0.00), immunosuppression (OR 2.89; 95% CI 1.2-7.2; p = 0.01), indwelling urinary catheter prior admission (OR 2.6; 95% CI 1.6-4.2; p < 0.00) and postoperative catheterization longer than 2 days (OR 1.74; 95% CI 1.7-4.3; p < 0.00). Transurethral resection of the bladder (TURB) had the highest infection rates (5.5%). Microorganisms isolated were Pseudomonas aeruginosa (23.5%), Escherichia coli (17.6%), Klebsiella pneumoniae and Enterococcus spp (11.8%). Resistance rates for flourquinolones varied between 28 and 80%, and Carbapenem-resistant Enterobacteriaceae rose up 20%. CONCLUSIONS: Low percentage of UTI after endoscopic surgery was registered. TURB was the procedure with highest infection rate. Pseudomonas aeruginosa stands out as the most frequently isolated microorganism. Patient comorbidities, previous urinary catheter and postoperative catheter were identified as risk factors.

Urinary Infections in Patients with Catheters in the Upper Urinary Tract: Microbiological Study.

BACKGROUND: Infections related to catheters in the upper urinary tract (CUUT) are associated with specific characteristics. METHODS: A prospective observational study was carried out from 2012 to 2015 to evaluate infections in patients with CUUT. RESULTS: A total of 209 infections were included (99 with double-J, 81 with nephrostomy, and 29 with internal/external nephroureteral stents). Among nephrostomy tube carriers, the most frequently isolated microorganisms were Pseudomonas and Enterococcus. In those with an internal/external nephroureteral stent, Klebsiella was the most common, and 57.1% were extended-spectrum beta-lactamase-producing Klebsiella. In double-J carriers, Escherichia coli and Enterococcus were the most common microorganisms. Multiple-drug resistance (MDR) microorganisms were isolated in 28.6, 47.1, and 58.3% of patients with double-J, nephrostomy, and internal-external nephroureteral stents. A percutaneous CUUT (p = 0.005) and immunosuppression (p = 0.034) were risk factors for MDR microorganisms. CONCLUSIONS: Non-E. coli bacteria are commonly isolated in patients with CUUT. MDR microorganisms are frequent, mainly in percutaneous approach or immunosuppression.

Prospective study analyzing risk factors and characteristics of healthcare-associated infections in a Urology ward.

PURPOSE: Healthcare-associated infections (HAIs) in urological patients have special features due to specific risk factors. Our objective was to evaluate the characteristics and risk factors for HAIs in patients hospitalized in a Urology ward. MATERIALS AND METHODS: We evaluated prospectively, from 2012 to 2015, the incidence, types and risk factor for HAIs, microbiological and resistance patterns. RESULTS: The incidence of HAIs was 6.3%. The most common types were urinary infections (70.5%) and surgical site infections (22.1%). Univariate analysis showed an increased risk of HAIs among patients with American Society of Anesthesiologists physical status classification system III-IV (odds ratio [OR], 1.39; p<0.001), immunosuppression (OR, 1.80; p=0.013), previous urinary infection (OR, 4.46; p<0,001), and urinary catheter before admission (OR, 1.74; p<0.001). The surgical procedures with the highest incidence of HAIs were radical cystectomy (54.2%) and renal surgery (8.7%). The most frequently isolated microorganisms were Escherichia coli (25.1%), Enterococcus spp. (17.5%), Klebsiella spp. (13.5%) and Pseudomonas aeruginosa (12.3%). Enterococcus sp was the most common microorganism after radical cystectomy and in surgical site infections, E. coli showed resistance rates of 53.5% for fluoroquinolones, 9.3% for amikacin. The percentage of extended-spectrum betalactamase producing E. coli was 24.7%. Klebsiella spp. showed resistance rates of 47.8% for fluoroquinolones, 7.1% for amikacin and 4.3% for carbapenems. Enterococcus spp showed resistance rates of 1.7% for vancomycin and; P. aeruginosa of 33.3% for carbapenems and 26.2% for amikacin. CONCLUSIONS: Comorbidities, previous urinary infections, and urinary catheter are risk factors for HAIs. The microorganisms most commonly isolated were E. coli, Enterococcus and P. aeruginosa. Prospective monitoring may decrease the incidence of infections.

Perigraft fluid collections after kidney transplantation: Does the type of donor (uncontrolled donation after circulatory death vs. donation after brain death) have a role?

INTRODUCTION: Perigraft fluid collection (PFC) is a common complication after kidney transplant. Its etiology is not clear and not all the causes have been identified. The influence of the type of donor has never been evaluated. Our aim was to compare the incidence, severity and management of PFC in recipients of grafts from uncontrolled donors after circulatory death (DCD) with normothermic extracorporeal membrane oxygenation (NECMO) versus recipients of grafts from donors after brain death (DBD). MATERIAL AND METHODS: We conducted a retrospective cohort study of 300 kidney transplants performed in our center between 2007 and 2012. Patients were divided in two groups: 150 recipients of Maastricht II DCD graft and 150 recipients of the DBD graft. Incidence, severity according to Clavien scale and management were analyzed in both groups, and comparison was carried out using Chi-square. RESULTS: Of the 300 kidney recipients analyzed, 93 (31.4%) suffered PFC, showing no difference between DBD (32.0%) and DCD (30.8%) groups (p = 0.9). Complicated PFC rate (defined as a PFC generating vascular compression, fever or urinary tract obstruction) was 22.9% in the DBD group versus 22.2% in the DCD group (p = 1); most complicated PFC were due to urinary tract obstruction (81%), with no difference between the groups (p = 1). Concerning Clavien scale, 78.5% of the PFC in our series were Clavien I, 19.4% Clavien IIIa and 2.2% Clavien IIIb, with no difference between both groups (p = 1). CONCLUSIONS: PFC is a frequent complication that appears in a third of our patients, showing no difference in the incidence or severity between DBD and uncontrolled DCD graft recipients.

Extended-Spectrum Beta-Lactamase-Producing Bacteria in a Urology Ward: Epidemiology, Risk Factors and Antimicrobial Susceptibility Patterns.

INTRODUCTION: Our aim was to describe the incidence and risk factors associated with extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae and their resistance rate in a urological ward. MATERIAL AND METHODS: We carried out a prospective observational study from November 2011 to December 2014, reviewing healthcare-associated infections (HAIs) in our department. We evaluated the infections caused by ESBL-producing Enterobacteriaceae. RESULTS: The incidence of HAIs in our urology ward was 6.8%. Enterobacteriaceae including Escherichia coli (24.9%), Klebsiella spp. (12.1%), Enterobacter spp. (5.9%), Morganella spp. (1.5%), Proteus spp. (1.5%), and Citrobacter spp. (1.5%) represented 47.4% of the isolated pathogens. The percentage of ESBL-producing Enterobacteriaceae was 26.4. Risk factors associated with a higher incidence of ESBL-producing bacteria were prior urinary tract infection (UTI; p < 0.001), hypertension (p = 0.042), immunosuppression (p = 0.004), and urinary stone (p = 0.027). The multivariable analysis confirmed prior UTI, immunosuppression and urinary stone as risk factors. ESBL-producing strains showed resistance rates of 85.3% for fluoroquinolones and 11.8% for carbapenems. Moreover, 16.7% of ESBL-Klebsiella were resistant to carbapenems. CONCLUSIONS: ESBL-producing enterobacteria are associated with higher cross resistance to antibiotics such as quinolones. Higher resistance rates are reported in ESBL-producing Klebsiella. Among patients admitted in a urology ward, risk factors for ESBL-producing strains were previous UTI, immunosuppression, and urinary stone.

Infecciones del tracto urinario de origen hospitalario en pacientes portadores de catéter urinario: factores de riesgo, características microbiológicas y resistencias a antibióticos / Healthcare-associated urinary tract infections in patients with a urinary catheter: Risk factors, microbiological characteristics and patterns of antibiotic resistance

OBJETIVO: Las infecciones del tracto urinario asociadas a catéteres urinarios (ITU-AC) son la causa más frecuente de infección nosocomial, presentando altas tasas de resistencias. Están asociadas a complicaciones potencialmente severas, implicando mayor coste económico. Nuestro objetivo fue analizar las características de las ITU nosocomiales asociadas a catéter urinario en un Servicio de Urología. MÉTODOS: Llevamos a cabo un estudio prospectivo desde Noviembre de 2011 hasta Octubre de 2013, evaluando la incidencia de infecciones nosocomiales asociadas a los catéter de derivación urinaria en una planta de hospitalización urológica. Además evaluamos los factores de riesgo como comorbilidades, sondaje previo al ingreso y cirugía durante la hospitalización. Se presentan los patrones microbiológicos y tasas de resistencia de los gérmenes aislados. RESULTADOS: La incidencia de ITU-AC nosocomial fue de 8,2% (189/2283 pacientes portadores d e catéteres urinarios). La edad media fue de 67,4 ± 14,26 años, el 90,2% fueron sometidos a un procedimiento quirúrgico (p< 0,001), 14,8% tenían litiasis urinaria (p = 0,058) y el 46% portaban cateterismo urinario previo al ingreso (p < 0,001). Los microorganismos más frecuentemente aislados fueron Escherichia coli (22,6%), Enterococcus (21,9%) y Pseudomonas aeruginosa (13,9%). E.coli mostró una resistencia de 41,9% para quinolonas y un 33,3% fueron productores de β-lactamasas de espectro extendido (ESBL). P.aeruginosa presentaba 42,1% de resistencias a quinolonas y hasta un 21,1% a carbapenems. CONCLUSIONES: Portar un catéter urinario previo al ingreso y la realización de un procedimiento quirúrgico urológico durante el ingreso son factores de riesgo de ITU nosocomial en pacientes ingresados en el Servicio de Urología. Existe una elevada incidencia de gérmenes resistentes y de patógenos no clásicos como Enterococcus spp

OBJECTIVE: Catheter-associated urinary tract infections (CAUTIs) are the most common nosocomial acquired infections, with high resistance rates. CAUTIs are a potentially severe complication in hospitalized patients and imply higher costs. Our aim was to analyze the characteristics of CAUTIs in our Urology department. METHODS: Between November 2011 and October 2013, a prospective observational study was carried out analyzing the incidence of healthcare-associated urinary tract infections in patients admitted to the urology ward with an indwelling urinary catheter. Furthermore, we evaluated associated risks factors and comorbidities such as urinary catheter at the time of admission or urological surgery during the hospitalization. We also presented our results regarding the microbiological characteristics and patterns of resistance to antibiotics in patients with CAUTI admitted in our service. RESULTS: The incidence of CAUTI was 8.2% (189/2283 patients who had urinary catheter). Mean age was 67.4 ± 14.26 years, 90.2% underwent a surgical procedure (p < 0.001), 14.8% had a urinary stone (p = 0.058) and 46% had a urinary catheter before admission (p < 0.001). The most commonly isolated pathogens were Escherichia coli (22.6%), Enterococcus (21.9%) and Pseudomonas aeruginosa (13.9%). E.coli showed resistance rates of 41.9% for quinolones, 33.3% of them produced extended spectrum βeta-lactamase (ESBL). P.aeruginosa showed resistance rates of 42.1% for quinolones and 21.1% for carbapenems. CONCLUSIONS: Healthcare-associated CAUTI in patients hospitalized in a urology ward are related to risks factors such as having a urinary catheter before admission and undergoing a surgical procedure. Moreover, CAUTIs have higher incidence of pathogens with antibiotic resistances and non-common pathogens such as Enterococcus spp

[Healthcare-associated urinary tract infections in patients with a urinary catheter: Risk factors, microbiological characteristics and patterns of antibiotic resistance]. / INFECCIONES DEL TRACTO URINARIO DE ORIGEN HOSPITALARIO EN PACIENTES PORTADORES DE CATÉTER URINARIO: FACTORES DE RIESGO, CARACTERÍSTICAS MICROBIOLÓGICAS Y RESISTENCIAS A ANTIBIÓTICOS.

OBJECTIVE: Catheter-associated urinary tract infections (CAUTIs) are the most common nosocomial acquired infections, with high resistance rates. CAUTIs are a potentially severe complication in hospitalized patients and imply higher costs. Our aim was to analyze the characteristics of CAUTIs in our Urology department. METHODS: Between November 2011 and October 2013, a prospective observational study was carried out analyzing the incidence of healthcare-associated urinary tract infections in patients admitted to the urology ward with an indwelling urinary catheter. Furthermore, we evaluated associated risks factors and comorbidities such as urinary catheter at the time of admission or urological surgery during the hospitalization. We also presented our results regarding the microbiological characteristics and patterns of resistance to antibiotics in patients with CAUTI admitted in our service. RESULTS: The incidence of CAUTI was 8.2% (189/2283 patients who had urinary catheter). Mean age was 67.4±14.26 years, 90.2% underwent a surgical procedure (p<0.001), 14.8% had a urinary stone (p=0.058) and 46% had a urinary catheter before admission (p<0.001). The most commonly isolated pathogens were Escherichia coli (22.6%), Enterococcus (21.9%) and Pseudomonas aeruginosa (13.9%). E.coli showed resistance rates of 41.9% for quinolones, 33.3% of them produced extended spectrum Β-lactamase (ESBL). P.aeruginosa showed resistance rates of 42.1% for quinolones and 21.1% for carbapenems. CONCLUSIONS: Healthcare-associated CAUTI in patients hospitalized in a urology ward are related to risks factors such as having a urinary catheter before admission and undergoing a surgical procedure. Moreover, CAUTIs have higher incidence of pathogens with antibiotic resistances and non-common pathogens such as Enterococcus spp.