Bladder Cancer and Probiotics: What Do We Know So Far?

Bladder cancer is around the 10th most diagnosed cancer, although has a considerable mortality. Recent research and new methodologies have discarded the historical dogma that the bladder (and urine) was sterile under normal conditions. Specifically, only a few studies have reported a detailed analysis of the urinary microbiota in patients with bladder cancer, thus exhibiting a remarkable variability due to the low biomass of the urinary microbiota and the influence of many factors. Nevertheless, this research shows us signals that urinary microbiota is a factor to be considered in the pathophysiology of bladder cancer. More importantly, probiotics could be useful as an adjuvant therapy to reduce the recurrence rate or increase the disease-free period after surgery. In vitro studies and animal assays have shown promising results, but the research in this context has also been scarce, and only a few studies have been conducted in humans. In summary, there is little evidence of the possible beneficial effect of probiotics in controlling the overgrowth of genera that could be involved in the carcinogenesis of bladder cancer. This narrative review aims to compile all the evidence to date on the therapeutic potential of probiotics injected directly into the bladder or orally administered.

Role, Cost, and Availably of Urinary pH Monitoring for Kidney Stone Disease-A Systematic Review of the Literature.

PURPOSE OF REVIEW: Urinary pH is an important factor related to renal stone disease, and it plays an essential role in stone prevention. Monitoring of urinary pH by patients at home provides information that can help to assess the treatment needed by each patient. We conducted a systematic review is to assess the available evidence concerning urinary pH monitoring methods along with their accuracy, cost, and usefulness by patients with urolithiasis. RECENT FINDINGS: A total of 9 articles were included (1886 urinary pH measurements). They reported information about urinary dipsticks, portable electronic pH meters and electronic strip readers, amongst other methods. Accuracy was compared with a laboratory pH meter (gold standard). Urinary dipsticks were found to be not accurate enough to guide clinical decision making and portable electronic pH meters showed promising results. Urinary dipsticks are neither precise nor accurate enough. Portable electronic pH meters seem to be more accurate, easy to use, and cost-effective. They are a reliable source for patients to use at home in order to prevent future episodes of nephrolithiasis.

Incidence of Bladder Cancer in Patients Undergoing Radiotherapy for Prostate Cancer.

INTRODUCTION: Radiotherapeutic treatment of prostate cancer has been validated in terms of efficacy, but its relationship with the occurrence of second pelvic primary malignancy and the relevance of radio-induced toxicity is still under debate. This study analyses the occurrence of second pelvic primary malignancy as well as morbidity secondary to radiotherapy treatment in patients treated for prostate cancer. MATERIAL AND METHODS: Retrospective consecutive descriptive study of 317 patients who received radiotherapy treatment for prostate cancer between 2007 and 2017. Predictor variables, side effects and the appearance of second pelvic primary malignancy during a maximum follow-up of 10 years were collected. We analyse whether there is a significant relationship in the appearance of second pelvic primary malignancy and describe the clinical toxicity presented by the patients. RESULTS: The median age was 62.27 years and the most commonly employed treatment modality was brachytherapy with IMRT (60%). 17 patients (5.4%) developed a second pelvic primary malignancy, with a median time to onset of 58 and 25 months for bladder and colon tumours, respectively. Local recurrence and mortality rates are 8% and 7%, respectively. Statistically significant association is demonstrated for the occurrence of second pelvic primary malignancy and for chronic radioinduced toxicity according to type of radiotherapy χ2 (4) = 16.34; p = 0.003 and χ2 (1) = 6.47; p = 0.011 respectively. CONCLUSIONS: In our series, the occurrence of a second pelvic primary malignancy is statistically associated with the modality of radiotherapy administered and occurrence of chronic adverse effects.

Incidence of Bladder Cancer in Patients Undergoing Radiotherapy for Prostate Cancer

Introduction: Radiotherapeutic treatment of prostate cancer has been validated in terms of efficacy, but its relationship with the occurrence of second pelvic primary malignancy and the relevance of radio-induced toxicity is still under debate. This study analyses the occurrence of second pelvic primary malignancy as well as morbidity secondary to radiotherapy treatment in patients treated for prostate cancer. Material and Methods: Retrospective consecutive descriptive study of 317 patients who received radiotherapy treatment for prostate cancer between 2007 and 2017. Predictor variables, side effects and the appearance of second pelvic primary malignancy during a maximum follow-up of 10 years were collected. We analyse whether there is a significant relationship in the appearance of second pelvic primary malignancy and describe the clinical toxicity presented by the patients. Results: The median age was 62.27 years and the most commonly employed treatment modality was brachytherapy with IMRT (60%). 17 patients (5.4%) developed a second pelvic primary malignancy, with a median time to onset of 58 and 25 months for bladder and colon tumours, respectively. Local recurrence and mortality rates are 8% and 7%, respectively. Statistically significant association is demonstrated for the occurrence of second pelvic primary malignancy and for chronic radioinduced toxicity according to type of radiotherapy χ2 (4) = 16.34; p = 0.003 and χ2 (1) = 6.47; p = 0.011 respectively. Conclusions: In our series, the occurrence of a second pelvic primary malignancy is statistically associated with the modality of radiotherapy administered and occurrence of chronic adverse effects (AU)

Biodegradable ureteral stents: in vitro assessment of the degradation rates of braided synthetic polymers and copolymers.

OBJECTIVES: The control and predictability of degradation rates and the absence of obstructive phenomena are two main challenges for research regarding biodegradable ureteral stents. The objectives are to assess the degradation performance and safety of braided combinations of three synthetic biodegradable polymers and copolymers; and to evaluate the interference of a heparin dip coating on degradation and bacterial colonization. METHODS: The hydrolysis of polyglycolic acid (PGA), poly lactic-co-glycolic acid (PLGA) and Glycomer™ 631 is assessed in this in vitro study that comprises ten groups. Stent samples present a braided arrangement and are incubated in porcine urine that undergoes analysis and exchange every 48 h until degradation. Coating is carried out with sodium heparin via dip coating and determination of the heparin release is carried out by ELISA test. Variables of study are stent mass, mass fold change, degradation time, bacterial colonization and concentration of heparin released in artificial urine. RESULTS: There is statistical significance in degradation times between all materials except between the Glycomer™ 631 alone and combined with PGA. Mass fold change analysis of the Glycomer™ 631 evidences an increasing trend of its mass during degradation. The combination of Glycomer™ 631 and PGA presents a progressive and gradual degradation, where PGA degrades at week 3 while Glycomer™ 631 remains intact until its fragmentation at the late stage of degradation. Heparin coating has no significant impact on mean degradation times and trends in any group, nor on bacteriuria rates; heparin concentration decreases significantly after 72 h. Products of degradation are released steadily with minimum dimensions. CONCLUSIONS: The combination of synthetic biodegradable polymers and copolymers with different degradation rates provides a gradual staged degradation. Heparin dip coating is a safe and feasible technique to coat biodegradable ureteral stents without interfering in degradation rates although it does not have a significant effect on the onset of bacterial colonization.

Manejo médico de la litiasis urinaria / Medical management of urolithiasis

No disponible

Tratamiento médico del cólico renoureteral en su fase aguda / Medical treatment for acute renal colic

INTRODUCCIÓN: El cólico renoureteral (CRU) es la urgencia urológica más frecuente, con un amplio espectro de gravedad que genera una alta morbilidad y elevados costes sanitarios. Sin embargo, no existe un esquema homogéneo de tratamiento farmacológico en su fase aguda. OBJETIVOS: El objetivo principal de nuestro trabajo es evaluar la efectividad y perfil de seguridad de los distintos fármacos empleados en el tratamiento del CRU y proponer un esquema práctico de tratamiento. Los objetivos secundarios son evaluar el papel de la fluidoterapia en el CRU y el tratamiento del CRU en embarazadas. MATERIAL Y MÉTODOS: Hemos realizado una búsqueda bibliográfica en PubMed utilizando los términos MeSH "renal colic", "treatment", "anti-inflammatory-drugs", "antiemetic drugs", "fluid therapy" y "pregnant". Se revisaron ensayos clínicos, metaanálisis y revisiones sistemáticas de mayor relevancia, publicados desde el 1 de enero de 2005 hasta el 15 de septiembre de 2020, escritos en lengua española, inglesa y francesa. RESULTADOS: En los diferentes estudios revisados los antiinflamatorios no esteroideos (AINES) muestran un mejor control del dolor, con menores dosis de rescate y menos efectos secundarios que el tratamiento con opioides. Sin embargo, la fluidoterapia no ha logrado demostrar una repercusión en el tratamiento del CRU. CONCLUSIONES: El tratamiento de primera elección para el CRU son los AINES, reservando los opioides para sucesivas líneas de tratamiento. El control del cortejo vegetativo se puede realizar con ondansetrón como primera elección

INTRODUCTION: Renoureteral colic (CRU) is the most common urological emergency, with a wide spectrum of severity that generates high morbidity and high health costs. However, there is no homogeneous scheme of pharmacological treatment in its acute phase. AIMS: The main objective of our work is to evaluate the effectiveness and safety profile of the different drugs used in the treatment of CCR and to propose a practical treatment scheme. The secondary objectives are to evaluate the role of fluid therapy in CRU and the treatment of CRU in pregnant women. MATERIAL AND METHODS: We have carried out a literature search on PubMed using the MeSH terms "renal colic", "treatment", "anti-inflammatory drugs", "antiemetic drugs", "fluid therapy" and "pregnant". The most relevant clinical trials, meta-analyses and systematic reviews published from 1 January 2005 to 15 September 2020 in Spanish, English and French were reviewed. RESULTS: In the different studies reviewed, non-steroidal anti-inflammatory drugs (NSAIDs) show better pain control, with lower rescue doses and fewer side effects than treatment with opioids. However, fluid therapy has failed to demonstrate an impact on the treatment of CRU. CONCLUSIONS: The initial treatment for CRU is NSAIDs, reserving opioids for successive treatment lines. The control of vegetative cortex can be accomplished with Ondansetron as first choice

Tratamiento médico expulsivo de la litiasis ureteral / Medical expulsive treatment for ureteral stones

INTRODUCCIÓN: El Tratamiento Médico Expulsivo (TME) para litiasis ureterales ha sido puesto en cuestión durante los últimos años. OBJETIVOS: El objetivo principal de nuestro trabajo es definir las indicaciones del TME, los fármacos empleados y su efectividad y proponer un esquema de seguimiento. Los objetivos secundarios son analizar la efectividad del TME en algunos subgrupos especiales de la población como son las embarazadas y los niños y valorar aspectos de coste-efectividad del TME en comparación con otras opciones de tratamiento de litiasis ureterales (ureterorrenoscopia o litotricia extracorpórea por ondas de choque). MATERIAL Y MÉTODOS: Hemos realizado una revisión de los ensayos clínicos y metaanálisis de mayor relevancia que valoran la efectividad de los diferentes fármacos disponibles para el TME. Para la búsqueda bibliográfica hemos utilizado algunos términos como medical expulsive treatment/therapy", "ureteral lithiasis", "urolithiasis", "effectiveness", "alpha-blockers" y "calcium-antagonists", siendo la principal base de datos consultada MEDLINE (a través del portal web PubMed). RESULTADOS: Aún los estudios de mayor calidad presentan importantes limitaciones metodológicas, lo que condiciona que la evidencia obtenida sea heterogénea y restringida a pacientes y litiasis que cumplan determinadas condiciones. En líneas generales, el TME puede tener cierto papel en la expulsión de litiasis de tamaño ≥ 5 mm y ≤ 10 mm localizadas en uréter distal, aunque no se ha logrado demostrar que alguno de los fármacos utilizados pueda tener especial superioridad en términos de efectividad. En gestantes y niños las indicaciones del TME tampoco estan estandarizadas. Por último, el TME en comparación con opciones de tratamiento, parece ser una alternativa más coste-efectiva y la preferida por los pacientes según estudios sobre QoL. CONCLUSIONES: Es necesario realizar ensayos clínicos de mayor calidad para poder indicar el TME con un mayor nivel de evidencia. Con la evidencia actual, parece que el TME puede favorecer la expulsión de litiasis localizadas en uréter distal y con un tamaño ≥ 5 mm y ≤ 10 mm. A pesar de ello no se han podido encontrar diferencias entre las distintas opciones farmacológicas disponibles

INTRODUCTION: Medical Expulsive Treatment (MET) for ureteral stones has been questioned for the last few years. OBJECTIVES: The main goal of our study is to define the indications of MET, the different drugs that are used and their effectiveness and to propose a follow-up strategy. Secondary objectives include the effectiveness of MET in some special subgroups such as pregnant women and children and to assess aspects of MET cost-effectiveness compared with other options for ureteral lithiasis treatment (ureterorenoscopy or extracorporeal shock wave lithotripsy). MATERIAL AND METHODS: We have reviewed the most relevant clinical trials and meta-analysis evaluating the impact of the different drugs available for MET. For the research we used some keywords like "medical expulsive treatment/therapy", "ureteral lithiasis", "urolithiasis", "effectiveness", "alpha-blockers" and "calcium-antagonists". MEDLINE database was used for the research (using the portal web Pubmed). RESULTS: Highest quality studies currently available show significant methodological limitations leading to heterogeneous and restricted evidence, which is only applicable to patients and lithiasis with specific conditions. Nevertheless, in general terms, it seems that MET can play a certain role in the expulsion of lithiasis ≥ 5 mm y ≤ 10 mm located in the distal ureter, although it has not been possible to demonstrate that any of the drugs used may have special superiority in terms of effectiveness. In pregnancy and children, the recommendations of MET are also irregular. Finally, MET seems to be an alternative cost-effective compared to active options of treatment. CONCLUSIONS: Higher quality clinical trials are needed to reliably advice MET. With the current evidence, it appears that MET can improve the expulsion of distal ureteral lithiasis ≥ 5 mm and ≤ 10 mm, even though we have not found differences between the drugs that are available for MET

Medical management of urolithiasis. / Manejo médico de la litiasis urinaria.

Urolithiasis is a multifactorial and recurrent disease whose incidence is increasing, especially in women but also in the paediatric population. Differences can be found between different regions and between different ethnicities, often due to dietary and environmental factors, without forgetting the genetic influence on different types of stones. There are disease sthat require a high index of suspicion in order to reach a diagnosis, such as renal tubular acidosis (RTA), not only for the benefit of the patient but also for their family members in the case a genetic mutation. Calcium-based stones continue to be the most frequent, but with a progressive increase in uric stones...

La urolitiasis es una enfermedad multifactorial y recurrente cuya incidencia está aumentando, sobre todo en mujeres y también enla población pediátrica. Se pueden encontrar diferencias entre las distintas regiones y entre diferentes razas, en muchas ocasiones por factores dietéticos y ambientales, sin olvidar la influencia genética en diferentes tipos de litiasis. Existen enfermedades que precisan de un alt oíndice de sospecha para poder llegar a su diagnóstico, como la acidosis tubular renal (ATR), no solo para beneficio del paciente, sino para sus familiares, en caso de presentar una mutacióngenética. La litiasis de composición cálcica sigue siendo la más frecuente, pero con un aumento progresivo de la litiasis úrica...

Medical treatment for acute renal colic. / Tratamiento médico del cólico renoureteral en su fase aguda.

INTRODUCTION: Renoureteral colic (CRU) is the most common urological emergency, with a wide spectrum of severity that generates high morbidity and high health costs. However, there is no homogeneous scheme of pharmacological treatment in its acutephase. AIMS: The main objective of our work is to evaluate the effectiveness and safety profile of the different drugs used in the treatment of CCR and to propose a practical treatment scheme. The secondary objectives are to evaluate the role of fluid therapy in CRU and the treatment of CRU in pregnant women. MATERIAL AND METHODS: We have carried out a literature search on PubMed using the MeSH terms "renalcolic", "treatment", "anti-inflammatory drugs", "antiemeticdrugs", "fluid therapy" and "pregnant". The most relevant clinical trials, meta-analyses and systematic reviews published from 1 January 2005 to 15 September 2020 in Spanish, English and French were reviewed. RESULTS: In the different studies reviewed, non-steroidalanti-inflammatory drugs (NSAIDs) show better pain control, with lower rescue doses and fewer side effects than treatment with opioids. However, fluid therapy has failed to demonstrate an impact on the treatment of CRU. CONCLUSIONS: The initial treatment for CRU is NSAIDs, reserving opioids for successive treatment lines. The control of vegetative cortex can be accomplished with Ondansetron as first choice.

INTRODUCCIÓN: El cólico renoureteral (CRU) es la urgencia urológica más frecuente, con un amplio espectro de gravedad que genera una alta morbilidad y elevados costes sanitarios. Sin embargo, no existe un esquema homogéneo de tratamiento farmacológico en su fase aguda. OBJETIVOS: El objetivo principal de nuestro trabajo es evaluar la efectividad y perfil de seguridad de los distintos fármacos empleados en el tratamiento del CRU y proponer un esquema práctico de tratamiento. Los objetivos secundarios son evaluar el papel de la fluidoterapia en el CRU y el tratamiento del CRU en embarazadas.MATERIAL Y MÉTODOS: Hemos realizado una búsqueda bibliográfica en PubMed utilizando los términos MeSH "renal colic", "treatment", "anti-inflammatory- drugs", "antiemetic drugs", "fluid therapy" y "pregnant". Se revisaron ensayos clínicos, metaanálisis y revisiones sistemáticas de mayor relevancia, publicados desde el 1 de enero de 2005 hasta el 15 de septiembre de 2020, escritos en lengua española, inglesa y francesa. RESULTADOS: En los diferentes estudios revisados los antiinflamatorios no esteroideos (AINES) muestran un mejor control del dolor, con menores dosis de rescate y menos efectos secundarios que el tratamiento con opioides. Sin embargo, la fluidoterapia no ha logrado demostrar una repercusión en el tratamiento del CRU. CONCLUSIONES: El tratamiento de primera elección para el CRU son los AINES, reservando los opioides para sucesivas líneas de tratamiento. El control del cortejo vegetativo se puede realizar con ondansetrón comoprimera elección.

[Medical expulsive treatment for ureteral stones.] / Tratamiento médico expulsivo de la litiasis ureteral.

INTRODUCTION: Medical Expulsive Treatment (MET) for ureteral stones has been questioned for the last few years. OBJECTIVES: The main goal of our study is to define the indications of MET, the different drugs that are used and their effectiveness and to propose a follow-up strategy. Secondary objectives include the effectiveness of MET in some special subgroups such as pregnant women and children and to assess aspects of MET cost-effectiveness compared with other options for ureteral lithiasis treatment (ureterorenoscopy or extracorporeal shock wave lithotripsy). MATERIAL AND METHODS: We have reviewed the most relevant clinical trials and meta-analysis evaluating the impact of the different drugs available for MET. For the research we used some keywords like "medical expulsive treatment/therapy", "ureteral lithiasis", "urolithiasis", "effectiveness", "alpha-blockers" and "calcium-antagonists". MEDLINE database was used for there search (using the portal web Pubmed). RESULTS: Highest quality studies currently availables how significant methodological limitations leading to heterogeneous and restricted evidence, which is only applicable to patients and lithiasis with specific conditions. Nevertheless, in general terms, it seems that MET can play a certain role in the expulsion of lithiasis ≥ 5mm y ≤ 10 mm located in the distal ureter, although it has not been possible to demonstrate that any of the drugs used may have special superiority in terms of effectiveness. In pregnancy and children, the recommendations of MET are also irregular. Finally, MET seemsto be an alternative cost-effective compared to active options of treatment. CONCLUSIONS: Higher quality clinical trials are needed to reliably advice MET. With the current evidence, it appears that MET can improve the expulsion of distal ureteral lithiasis ≥ 5 mm and ≤ 10 mm, even though we have not found differences between the drugs that are available for MET.

INTRODUCCIÓN: El Tratamiento Médico Expulsivo (TME) para litiasis ureterales ha sido puesto en cuestión durante los últimos años. OBJETIVOS: El objetivo principal de nuestro trabajo es definir las indicaciones del TME, los fármacos empleados y su efectividad y proponer un esquema de seguimiento. Los objetivos secundarios son analizar la efectividad del TME en algunos subgrupos especiales de la población como son las embarazadas y los niños y valorar aspectos de coste-efectividad del TME en comparación con otras opciones de tratamiento de litiasis ureterales (ureterorrenoscopia o litotricia extracorpórea por ondas de choque). MATERIAL Y MÉTODOS: Hemos realizado una revisión de los ensayos clínicos y metaanálisis de mayor relevancia que valoran la efectividad de los diferentes fármacos disponibles para el TME. Para la búsqueda bibliográfica hemos utilizado algunos términos como medical expulsive treatment/therapy", "ureteral lithiasis", "urolithiasis","effectiveness", "alpha-blockers" y "calcium-antagonists",siendo la principal base de datos consultada MEDLINE (a través del portal web PubMed). RESULTADOS: Aún los estudios de mayor calidad presentan importantes limitaciones metodológicas, lo que condiciona que la evidencia obtenida sea heterogénea y restringida a pacientes y litiasis que cumplan determinadas condiciones. En líneas generales, el TME puede tener cierto papel en la expulsión de litiasis de tamaño ≥5 mm y ≤10 mm localizadas en uréter distal, aunqueno se ha logrado demostrar que alguno de los fármacos utilizados pueda tener especial superioridad en términos de efectividad. En gestantes y niños las indicaciones delTME tampoco estan estandarizadas. Por último, el TME en comparación con opciones de tratamiento, parece ser una alternativa más coste-efectiva y la preferida por los pacientes según estudios sobre QoL. CONCLUSIONES: Es necesario realizar ensayos clínicos de mayor calidad para poder indicar el TME con unmayor nivel de evidencia. Con la evidencia actual, parece que el TME puede favorecer la expulsión de litiasis localizadas en uréter distal y con un tamaño ≥5 mm y ≤10 mm. A pesar de ello no se han podido encontrar diferencias entre las distintas opciones farmacológicas disponibles.

Terapia de deprivación androgénica en cáncer de próstata avanzado. Estudio multicéntrico / Androgen deprivation therapy in advanced prostate cancer. Multicenter study

OBJETIVO: El cáncer de próstata (CP) avanzado es una entidad frecuente. Los objetivos de este trabajo son la presentación de una serie de pacientes con CP en tratamiento con Terapia de Deprivación Androgénica (TDA) en práctica clínica habitual y la determinación de parámetros asociados al desarrollo de resistencia a la castración (CPRC). MATERIAL Y MÉTODOS: Estudio multicéntrico, observacional, retrospectivo que analiza pacientes tratados con TDA desde enero 2016 hasta enero 2017. Análisis descriptivo de las variables clínicas más relevantes, análisis univariante y supervivencia libre de progresión mediante test Kaplan-Meier. RESULTADOS: Muestra 952 pacientes. Al diagnóstico del CP edad mediana 74 años. Mediana de PSA al diagnóstico de CP 23 ng/ml, al inicio TDA 20,2 ng/ml. El 80,2% de pacientes tenían biopsia al diagnóstico del CP: 28,2% grado pronóstico Gleason grupo 1, 38,7% grados 2 y 3 y 33,1% grados 4 y 5. Tratamiento inicial del CP: 75,9% TDA, prostatectomía radical 8,4% y radioterapia 15,1%. De los 952 pacientes, 281 (29,6%) cumplían criterios de CPRC. En este grupo el 21,7% alcanzó PSA indetectable (<0,1 ng/ml) con la TDA 20,2 frente al grupo no CPRC en el que lo alcanzaron el 59,9%. Encontramos mayor probabilidad de progresión a CPRC en pacientes con PSA al diagnóstico de CP > 30 ng/ml (p = 0,000, OR 2,78), grado pronóstico Gleason grupos 4-5 (p = 0,000, OR 2,33) y en aquellos que no alcanzan PSA indetectable tras TDA (p < 0,01, OR 3,32) variables que se relacionan con los tiempos de progresión a CPRC y especialmente al estadio metastásico. CONCLUSIONES: Se presenta una serie de pacientes CP avanzado en tratamiento con TDA que muestra heterogeneidad de características y de manejo según práctica clínica habitual. En nuestra serie el PSA elevado al diagnóstico, histología desfavorable y no alcanzar un PSA< 0,1 ng/ml tras la TDA se presentan como indicadores de progresión a estadio CPRC

OBJECTIVES: Advanced prostate cancer (PC) is a frequent entity. The objectives of this paper are the presentation of a sample of patients with PC undergoing treatment with androgen deprivation therapy (ADT) in usual clinical practice and the determination of parameters associated with the development of resistance to castration (CRPC). MATERIAL AND METHODS: Multicenter, observational, retrospective study that analyzes patients treated with ADT from January 2016 to January 2017. Descriptive analysis of the most relevant clinical variables and univariante analysis and progression times by Kaplan-Meier test. RESULTS: Sample of 952 patients. At PC diagnosis median age 74 years. Median PSA at PC diagnosis 23 ng/ml, when begining ADT 20.2 ng/ml. 80.2% of patients were biopsied at PC diagnosis: 28.2% Gleason score group 1, 38.7% groups 2 and 3 and 33.1% groups 4 and 5. Initial treatment of PC: 75.9% ADT, radical prostatectomy 8.4% and radiotherapy 15.1%. Of the 952 patients, 281 (29.6%) fulfilled CRPC criteria. In this group 21.7% achieved undetectable PSA (< 0.1 ng/ml) with ADT compared to the non-CRPC group in which it was 59.9%. Increased probability of progression to CRPC in: PSA >30ng/ml at PC diagnosis (p = 0.000, OR 2.78), Gleason score group 4-5 (p = 0.000, OR 2.33), and not to reach undetectable PSA after ADT (p < 0.001, OR 3.32). The initial ADT group presents progression to metastatic CRPC more rapidly in unfavourable histology and when not reached undetectable PSA after ADT. CONCLUSIONS: We present a sample of patients with advanced PC in treatment with ADT that shows heterogeneity in usual clinical practice. In our sample, elevated PSA at PC diagnosis, unfavorable histology and failure to achieve a PSA <0.1ng/ml after ADT is presented as an indicator of progression to the CRPC stage

[Androgen deprivation therapy in advanced prostate cancer. Multicenter study.] / Terapia de deprivación androgénica en cáncer de próstata avanzado. Estudio multicéntrico.

OBJECTIVES: Advanced prostate cancer (PC) is a frequent entity. The objectives of this paper are the presentation of a sample of patients with PC undergoing treatment with androgen deprivation therapy (ADT) in usual clinical practice and the determination of parameters associated with the development of resistance to castration (CRPC). MATERIAL AND METHODS: Multicenter, observational, retrospective study that analyzes patients treated with ADT from January 2016 to January 2017. Descriptive analysis of the most relevant clinical variables and univariante analysis and progression times by Kaplan-Meier test. RESULTS: Sample of 952 patients. At PC diagnosis median age 74 years. Median PSA at PC diagnosis 23 ng/ml, when begining ADT 20.2 ng/ml. 80.2% of patients were biopsied at PC diagnosis: 28.2% Gleason score group 1, 38.7% groups 2 and 3 and 33.1% groups 4 and 5. Initial treatment of PC: 75.9% ADT, radical prostatectomy 8.4% and radiotherapy 15.1%. Of the 952 patients, 281 (29.6%) fulfilled CRPC criteria.In this group 21.7% achieved undetectable PSA (group in which it was 59.9%. Increased probability of progression to CRPC in: PSA >30ng/ml at PC diagnosis (p=0.000, OR 2.78), Gleason score group 4-5 (p=0.000, OR 2.33), and not to reach undetectable PSA after ADT (p <0.001, OR 3.32). The initial ADT group presents progression to metastatic CRPC more rapidly in unfavourable histology and when not reached undetectable PSA after ADT. CONCLUSIONS: We present a sample of patients with advanced PC in treatment with ADT that shows heterogeneity in usual clinical practice. In our sample, elevated PSA at PC diagnosis, unfavorable histology and failure to achieve a PSA<0.1 ng/ml after ADT is presented as an indicator of progression to the CRPC stage.

OBJETIVO: El cáncer de próstata (CP) avanzado es una entidad frecuente. Los objetivos de este trabajo son la presentación de una serie de pacientes con CP en tratamiento con Terapia de Deprivación Androgénica (TDA) en práctica clínica habitual y la determinación de parámetros asociados al desarrollo de resistencia a la castración (CPRC).MATERIAL Y MÉTODOS: Estudio multicéntrico,  observacional, retrospectivo que analiza pacientes tratados con TDA desde enero 2016 hasta enero 2017. Análisis descriptivo de las variables clínicas más relevantes, análisis univariante y supervivencia libre de progresión mediante test Kaplan-Meier. RESULTADOS: Muestra 952 pacientes. Al diagnóstico del CP edad mediana 74 años. Mediana de PSA al diagnóstico de CP 23 ng/ml, al inicio TDA 20,2 ng/ml. El 80,2% de pacientes tenían biopsia al diagnóstico del CP: 28,2% grado pronóstico Gleason grupo 1, 38,7% grados 2 y 3 y 33,1% grados 4 y 5. Tratamiento inicial del CP: 75,9% TDA, prostatectomía radical 8,4% y radioterapia 15,1%.De los 952 pacientes, 281 (29,6%) cumplían criterios de CPRC. En este grupo el 21,7% alcanzó PSA indetectable (<0,1 ng/ml) con la TDA 20,2  frente al grupo no CPRC en el que lo alcanzaron el 59,9%. Encontramos mayor probabilidad de progresión a CPRC en pacientes con PSA al diagnóstico de CP >30 ng/ml (p=0,000, OR 2,78), grado pronóstico Gleason grupos 4-5 (p=0,000, OR 2,33) y en aquellos que no alcanzan PSA indetectable tras TDA (p<0,01, OR 3,32) variables que se relacionan con los tiempos de progresión a CPRC y especialmente al estadio metastásico. CONCLUSIONES: Se presenta una serie de pacientes CP avanzado en tratamiento con TDA que muestra heterogeneidad de características y de manejo según práctica clínica habitual. En nuestra serie el PSA elevado al diagnóstico, histología desfavorable y no alcanzar un PSA<0,1 ng/ml tras la TDA se presentan como indicadores de progresión a estadio CPRC.

Experimental Assessment of New Generation of Ureteral Stents: Biodegradable and Antireflux Properties.

Objective: The aim was to assess a new biodegradable and antireflux intraureteral stent (BraidStent®) design in a swine model after ureteral laparoscopic operation. Materials and Methods: A total of 24 female pigs underwent initial endoscopic, nephrosonographic, and contrast fluoroscopy assessment of the urinary tract. Afterward, unilateral ureteropelvic junction obstruction was performed by laparoscopic approach. Six weeks later, the animals underwent laparoscopic Anderson-Hynes pyeloplasty, and were randomly assigned to Group-I, in which a double-pigtail ureteral stent was inserted for 6 weeks, or Group-II, in which a BraidStent®, a biodegradable intraureteral stent design, was placed. Follow-up assessments were performed at 3 and 6 weeks and 5 months. Results: In terms of therapeutic success, complete resolution was observed in 91.6% of Group-I animals and 88.8% in Group-II. No evidence of vesicoureteral reflux (VUR) was observed in Group-II animals and statistical significance in VUR and ureteral orifice damage were observed between groups. BraidStent® degradation occurred in a controlled manner between 3 and 6 weeks, without obstructive fragments. Distal ureteral peristalsis was maintained in 66.6% and 83.3% in Group-II at 3 and 6 weeks of follow-up, respectively. In Group-II, the positive bacteriuria rate was 41.6% and the migration rate 25%. Pathological assessment showed a significant improvement in ureteral healing in Group-II vs Group-I. Conclusions: The results of this comparative study in a porcine model indicate that the intraureteral BraidStent performed similarly to conventional ureteral stents. It avoids complete ureteral length intubation, the adverse effects associated with conventional ureteral stents, and maintains a high level of distal ureteral peristalsis. Moreover, the BraidStent® exhibited a predictable and controlled degradation rate and did not cause any obstructive fragments. However, further studies are needed to improve the anchoring system and reduce the risk of bacterial colonization.

[MicroURS. Is it a technique to stay?] / MicroURS ?una técnica para quedarse?

Micro-ureteroscopy is a novel technique derived from the need to reduce the morbidity associated with conventional ureteroscopy. Reducing morbidity, we will be able to improve quality of life of patients, for example, by shortening the times to elimination of the stones. In this article the authors intend to expose the different applications of micro ureteroscopy as well as the incipient scientific evidence on the topic.

[Urinary lithiasis. The patient also plays.] / Urolitiasis: el paciente también juega.

Renal lithiasis is known for its high incidence and prevalence, but mainly for its morbidity and recurrence. Despite a good indication and appropriate surgical treatment, the essential problem, the origin of the formation of the stones, generally persists and it is not uncommon that patients suffer multiple treatments and discomfort secondary to ancillary measures normally used to prevent complications. It is widely known, for consistency, that a prophylactic treatment with general or, in a smaller group of patients, specific measures are appropriate to diminish recurrences. Nevertheless, prophylaxis is not usually used by many urologists and, on top of that, in the majority of those cases when it is taken into consideration, it is the patient who fails for inadequate treatment compliance. It is very important, in any of our conversations with the urinary lithiasis' patient in relation with the disease, that the urologist provides a proper and detailed information about all its features, from diagnosis to active treatment and possible complications and, of course in those cases where prophylaxis is going to be essential to avoid new unpleasant episodes of pain and associated surgical interventions, emphasizing that improving his/her quality of life depends, to a great extent, on the patient himself. In this article, considering the existing evidence and personal experience, we intend to detail those behaviors we should take into consideration to facilitate the patient both therapeutic decisions and a positive attitude towards his/her disease, with the aim to control it in the best possible way.

UROLITIASIS: Desde la formación al tratamiento y la prevención / Urinary lithiasis: From Stone formation to treatment and prevention

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