Use of Bladder Epicheck® in the follow-up of high-risk non-muscle-invasive Bladder cancer: A systematic literature review.

INTRODUCTION: In recent years, different urinary markers such as the Bladder Epicheck® have been developed in an attempt to reduce the number of cystoscopies in the follow-up of non-muscle invasive bladder cancer (NMIBC). AIM: To provide a systematic review of Bladder Epicheck® and its current clinical utility in the follow-up and detection of recurrence of NMIBC. MATERIAL AND METHODS: Systematic review based on a literature search of PubMed, Web of Science and Scopus databases until October 2023, according to PRISMA and Quadas-2 criteria. Sensitivity (Se), specificity (Sp), positive predictive value (PPV) and negative predictive value (NPV) of the marker were calculated. Diagnostic performance was evaluated by the area under the curve (AUC). RESULTS: Fifteen studies were analyzed (n = 3761) including 86.7% prospective studies. Of the patient series, 53.2% had received previous intravesical instillations. The mean Se of the biomarker in the detection of recurrence varied according to tumor grade (87.9%-high grade/HG vs. 44.9%-low grade/LG, respectively). Their weighted mean Se and Sp were 71.6% and 84.5%, respectively. The mean recurrence rate was 29.1%. The weighted mean PPV and NPV were 56.4% and 92.8% (97.7% non-LG), respectively. The mean AUC was 85.63%. CONCLUSION: Bladder Epicheck® is a useful urinary marker in the follow-up of NMIBC, with significantly high Se and NPV in the detection of recurrences, especially in cases of HG disease. Its use can reduce the number of cystoscopies required in the follow-up of NMIBC, improving the quality of life of patients and potentially increasing health economic savings.

Persistencia de uraco en paciente joven. Reporte de caso / Persistence of urachus in a young patient. Case report

Introducción. Durante el desarrollo embrionario normal, se espera que el denominado uraco o ligamento umbilical mediano se oblitere a las 32 semanas de gestación. Ante una obliteración incompleta surgen las diferentes anomalías, siendo las más frecuentes el quiste y la fístula urinaria umbilical. El objetivo de este artículo fue presentar el caso de una paciente joven, sin comorbilidades, con quiste de uraco. Caso clínico. Mujer indígena de 19 años que consultó por dolor leve en hipogastrio, asociado a síntomas urinarios y distensión abdominal. Se sospechó en primera instancia cólico renal, pero ante hallazgos ecográficos de masa infraumbilical y reactantes de fase aguda elevados, la impresión diagnóstica cambió a sepsis secundaria a absceso intraabdominal. Posterior a tomografía y cistoscopía con calibración uretral se identificó pequeño divertículo en cúpula vesical, que sugirió el diagnóstico de uraco persistente, por lo que la paciente fue llevada a intervención quirúrgica para su resección, con evolución favorable. Discusión. El quiste de uraco es una anormalidad infrecuente, en su mayoría asintomática y generalmente de hallazgo incidental en la población anciana, por lo que se requiere de imágenes y manejo multidisciplinar para su correcto diagnóstico y abordaje. Conclusión. Son pocos los casos de uraco persistente reportados, y mucho menos en el sexo femenino. Dada la posibilidad de complicaciones tardías es importante el seguimiento para su manejo. Este caso se ha controlado de manera ambulatoria por 2 años

Introduction. During normal embryonic development, it is expected that the so-called urachus or median umbilical ligament will be obliterated at 32 weeks of gestation. In the face of incomplete obliteration, the different anomalies of the urachus arise. The most frequent anomaly of the urachus is the cyst followed by the umbilical urinary fistula. The objective of this article was to present the case of a young patient without comorbidities with urachal cyst. Clinical case. A 19-year-old indigenous woman consulted for mild hypogastric pain associated with urinary symptoms and abdominal distension. Renal colic was suspected at first, but due to ultrasound findings of an infraumbilical mass and high acute phase reactants, the diagnostic impression changed to sepsis secondary to an intra-abdominal abscess. After tomography and cystoscopy with urethral calibration, a small diverticulum was identified in the bladder dome, suggesting a diagnosis of persistent urachus, for which the patient was taken to surgery for its resection, with favorable evolution. Discussion. The urachal cyst is a rare abnormality, mostly asymptomatic and usually incidental finding in the elderly population. Imaging and multidisciplinary management are required for its correct diagnosis and approach. Conclusion. There are few reported cases of persistent urachus and much less in females. Given the possibility of late complications, follow-up is important for its management, in this case we have carried out control for 2 years

Desarrollo y validación de un nuevo simulador para endourología / The development and validation of a new simulator for endourology

Introducción La simulación en medicina ha evolucionado sustancialmente en las últimas décadas. Actualmente hay una gran variedad de simuladores disponibles, especialmente diseñados para la práctica de procedimientos quirúrgicos. Debido a las largas curvas de aprendizaje de las técnicas endourológicas mínimamente invasivas, la rama de la endourología se puede ver muy beneficiada por el uso de estos simuladores. Material y métodos Se diseñó un simulador de baja fidelidad para la práctica de técnicas endourológicas que utilizan cistoscopia. En el proceso de validación participaron 5 expertos y 19 no expertos. Los expertos eran profesionales médicos de un Departamento de Urología con experiencia de al menos 100 procedimientos de cistoscopia flexible. Los no expertos eran residentes en medicina interna sin experiencia en ningún tipo de técnica endoscópica. Se recogió información sobre la validez aparente y de contenido mediante escalas de Likert con puntuación de 1 a 5. Para evaluar la validez de constructo, se midió el tiempo para completar dos tareas, para lo cual se evaluó el procedimiento mediante la escala de evaluación global OSATS. Resultados El nuevo simulador se fabricó satisfactoriamente de acuerdo con su diseño. En todos los aspectos evaluados de la validez de constructo hubo una diferencia significativa (p<0,05) entre el grupo de expertos y el de no expertos. La validez de contenido fue puntuada con 4,66 (desviación estándar [DE] ±0,56) por los expertos y con 4,41 (DE±0,71) por los no expertos. En el cuestionario de validez aparente, la puntuación media fue de 4,14 (DE±0,94), y la pregunta que recibió la puntuación más alta (4,6 [DE±0,84]) evaluaba la inmersión en el procedimiento. Conclusión El simulador presentado es válido tanto para el entrenamiento de nuevos endourólogos como para el perfeccionamiento de las técnicas de los médicos expertos (AU)

Introduction Simulation in medicine has developed a lot in the last few decades. There is a broad range of simulators available, above all for training in surgical procedures. Endourology can benefit much from simulation because the minimally-invasive procedures of endourology frequently have long learning curves, which can be reduced by training with simulators. Material and methods A low-fidelity simulator was designed for practicing endourology techniques that use cystoscopy. The process of validation involved 5 experts and 19 non-experts. Experts comprised medical professionals working in a department of urology who had performed at least 100 flexible cystoscopy procedures. Non-experts were residents in internal medicine without experience in any type of endoscopy. Information about face and content validity was collected by means of Likert scales from 1 to 5. To evaluate construct validity, we measured the time to complete two tasks, for which the procedure was evaluated by means of the OSATS global evaluation scale. Results New simulator was successfully built according to its design. For all evaluated aspects of construct validity, there was a significant difference (P<.05) between the group of experts and the group of non-experts. Content validity was scored 4.66 (standard deviation±0.56) by the experts and 4.41 (±0.71) by the non-experts. In the face validity questionnaire, the average score was 4.14 (±0.94), the question receiving the highest score: 4.6 (±0.84) concerned immersion in the procedure. Conclusion The simulator presented is valid both for training up new urologists in endourology technique and for experts seeking to perfect their skills (AU)

Tolerabilidad del paciente durante la cistoscopia y la cauterización de tumores vesicales en consulta: análisis multivariante de los factores de riesgo / Patient tolerability during office cystoscopy and bladder tumor cauterization: A multivariate analysis of risk factors

Objetivo La cistoscopia y la cauterización realizadas en el quirófano suponen un coste elevado y exponen a los pacientes a los riesgos asociados a la anestesia. La tolerabilidad de los pacientes durante la cistoscopia y la cauterización en la consulta es fundamental para el tratamiento ambulatorio del cáncer de vejiga y otras enfermedades urológicas. Se evaluaron los factores de riesgo asociados con el dolor percibido en la cistoscopia flexible en consulta, evaluando de manera independiente a un subgrupo de pacientes con cáncer de vejiga sometidos a cauterización. Materiales y métodos Análisis retrospectivo de 110 encuestas anónimas de pacientes completadas después de una cistoscopia y/o cauterización. La información de la encuesta incluía la edad, el sexo, la indicación de la cistoscopia, el número de cistoscopias previas, el número de cauterizaciones ambulatorias previas, la ansiedad antes/durante la cistoscopia y el dolor durante la cistoscopia y/o la cauterización. Se realizaron análisis univariantes/multivariantes y de regresión lineal para evaluar la asociación del dolor con los parámetros clínicos. Resultados El promedio del dolor percibido durante la cistoscopia (1,75±1,331) no difirió significativamente cuando se realizó también la cauterización (2,37±2,214) (p<0,001) (p=0,2840). Los pacientes del grupo de menor edad (<66 años) indicaron mayor ansiedad (p=0,0005), más dolor durante la cistoscopia (p=0,004) y la cauterización (p<0,001). Aunque el nivel de ansiedad general de los pacientes durante el procedimiento era bajo (1-3/10), se asoció con cierto nivel de dolor durante la cistoscopia (p=0,0005) y la cauterización (p<0,000). En el análisis multivariante, la ansiedad fue el único predictor independiente del dolor durante la cistoscopia (p=0,03; OR: 6,52; IC 95%:1,2-35,6) y la cauterización (p=0,0012; OR: 3,4; IC 95%:1,6-7,0)(AU)

Objective Cystoscopy and cauterization performed in the operating room is expensive and exposes patients to anesthesia risks. Patient tolerability during office cystoscopy and cauterization is critical to the office management of bladder cancer and other urologic diseases. We evaluated the risk factors for pain of flexible cystoscopy in the office-setting with emphasis on a sub-group of bladder cancer patients who underwent cauterization. Materials and methods Retrospective analyses of 110 anonymous patient surveys completed after cystoscopy and/or cauterization. Survey information included age, gender, purpose of cystoscopy, number of prior cystoscopies, prior number of office-cauterizations, anxiety prior/during cystoscopy, and pain during cystoscopy and/or cauterization. Univariate/multivariate and linear-regression analyses were performed to evaluate the association of pain with clinical parameters. Results Average pain during cystoscopy (1.75±1.331) was not significantly different when cauterization was also performed (2.37±2.214) (P<.001) (P=.2840). Patients in the lower age group (<66 years) indicated higher anxiety (P=.0005), more pain at cystoscopy (P=.004) and cauterization (P<.001). Although the patient's overall anxiety level was low (1–3/10), it was associated with some pain during cystoscopy (P=.0005) and cauterization (P<.000). In multivariate analysis, anxiety was the only independent predictor of pain during cystoscopy (P=.03, OR: 6.52, 95%CI: 1.2-35.6) and cauterization (P=.0012, OR: 3.4, 95%CI: 1.6-7.0) (AU)

The development and validation of a new simulator for endourology.

INTRODUCTION: Simulation in medicine has developed a lot in the last few decades. There is a broad range of simulators available, above all for training in surgical procedures. Endourology can benefit much from simulation because the minimally-invasive procedures of endourology frequently have long learning curves, which can be reduced by training with simulators. MATERIALS AND METHODS: A low-fidelity simulator was designed for practicing endourology techniques that use cystoscopy. The process of validation involved 5 experts and 19 non-experts. Experts comprised medical professionals working in a department of urology who had performed at least 100 flexible cystoscopy procedures. Non-experts were residents in internal medicine without experience in any type of endoscopy. Information about face and content validity was collected by means of Likert scales from 1 to 5. To evaluate construct validity, we measured the time to complete two tasks, for which the procedure was evaluated by means of the OSATS global evaluation scale. RESULTS: New simulator was successfully built according to its design. For all evaluated aspects of construct validity, there was a significant difference (p<0.05) between the group of experts and the group of non-experts. Content validity was scored 4.66 (standard deviation ±0.56) by the experts and 4.41 (±0.71) by the non-experts. In the face validity questionnaire, the average score was 4.14 (±0.94), the question receiving the highest score: 4.6 (±0.84) concerned immersion in the procedure. CONCLUSION: The simulator presented is valid both for training up new urologists in endourology technique and for experts seeking to perfect their skills.

Patient tolerability during office cystoscopy and bladder tumor cauterization: a multivariate analysis of risk factors.

OBJECTIVE: Cystoscopy and cauterization performed in the operating room is expensive and exposes patients to anesthesia risks. Patient tolerability during office cystoscopy and cauterization is critical to the office management of bladder cancer (BC) and other urologic diseases. We evaluated the risk factors for pain of flexible cystoscopy in the office-setting with emphasis on a sub-group of BC patients who underwent cauterization. MATERIALS AND METHODS: Retrospective analyses of 110 anonymous patient surveys completed after cystoscopy and/or cauterization. Survey information included age, gender, indication for cystoscopy, number of prior cystoscopies, number of prior office-based cauterizations, anxiety prior/during cystoscopy, and pain during cystoscopy and/or cauterization. Univariate/multivariate and linear-regression analyses were performed to evaluate the association of pain with clinical parameters. RESULTS: Average pain during cystoscopy (1.75 ±â€¯1.331) was not significantly different when cauterization was also performed (2.37 ±â€¯2.214) (p < 0.001) (p = 0.2840). Patients in the lower age group (<66 years) indicated higher anxiety levels (p = 0.0005), more pain at cystoscopy (P = 0.004) and cauterization (p < 0.001). Although the patients' overall anxiety level was low (1-3/10), it was associated with some pain during cystoscopy (p = 0.0005) and cauterization (p < 0.000). In multivariate analysis, anxiety was the only independent predictor of pain during cystoscopy (p = 0.03, OR: 6.52,95% CI: 1.2-35.6) and cauterization (p = 0.0012, OR: 3.4, 95%CI: 1.6-7.0). In BC patients, pain scores during cystoscopy and cauterization were not significantly different (p = 0.4772) but associated with anxiety. CONCLUSION: Office-based cystoscopy and cauterization are tolerable with minimal pain. Higher pain levels during cystoscopy were associated with procedure anxiety, and pain during cauterization was associated with procedure anxiety and younger age. Younger and more anxious patients may need more counseling before cystoscopy.

Virtual Reality as a distraction therapy during cystoscopy: a clinical trial / A Realidade Virtual como terapia de distração durante cistoscopias: um ensaio clínico

ABSTRACT Objectives: to investigate whether virtual reality (VR) experience is associated with decreased pain sensation among patients who undergo rigid cystoscopy under local anesthesia. Methods: we performed a prospective, randomized, controlled study of 159 patients who were aleatorily enrolled into two groups: VR and control. VR experience intervention consisted of using a headset with a smartphone adapted to a virtual reality glasses where an app-video was played during the procedure. Main outcomes analyzed were pain, discomfort, heart rate variability, difficulty and duration of the cystoscopy. Statistical analyses were performed using a Student's t test, Mann-Whitney test and Chi-square test. A P<0.05 was considered to be statistically significant. Results: among 159 patients studied (VR group=80 patients; control group=79 patients), the mean age was 63,6 years and 107 (67,3%) were male. There was no statistically significant difference in baseline characteristics between the 2 groups. VR was significantly associated to decreased heart rate variability (6,29 vs 11,09 bpm, P<0,001) and lower duration of the procedure (5,33 vs 8,65 min, P<0,001). Also, when cystoscopies due to double-J extraction were excluded, VR experience was associated with reduced pain on the visual analog score of pain (3,26 vs 4,33 cm, P=0,023). Conclusions: the use of VR as a distraction therapy while performing outpatient cystoscopies is safe, has no side effects, is associated with less pain and discomfort, and reduces length of procedure.

RESUMO Objetivos: investigar se a experiência de realidade virtual (RV) está associada à diminuição da dor em pacientes submetidos à cistoscopia rígida sob anestesia local. Métodos: foi realizado um estudo prospectivo, randomizado e controlado de 159 pacientes que foram alocados aleatoriamente em dois grupos: RV e controle. A intervenção da experiência de RV consistiu no uso de óculos de realidade virtual com smartphone adaptado e fones de ouvido, onde um vídeo foi reproduzido durante o procedimento. Os principais desfechos analisados foram dor, desconforto, variabilidade da frequência cardíaca, dificuldade e duração da cistoscopia. As análises estatísticas foram realizadas com o teste t de Student, o teste de Mann-Whitney e o teste do qui-quadrado. Um P<0,05 foi considerado como estatisticamente significativo. Resultados: entre os 159 pacientes estudados (grupo RV=80; grupo controle=79), a média de idade foi 63,6 anos e 107 (67,3%) eram do sexo masculino. Não houve diferença estatisticamente significativa nas características basais entre os grupos. A RV foi significativamente associada à menor variabilidade da frequência cardíaca (6,29 vs 11,09 bpm, P<0,001) e menor duração do procedimento (5,33 vs 8,65 min, P<0,001). Além disso, quando cistoscopias devido à extração de duplo J foram excluídas, a RV foi associada à redução da dor na escala visual analógica (3,26 vs 4,33cm, P=0,023). Conclusões: o uso da RV como terapia de distração durante a realização de cistoscopias ambulatoriais é seguro, não tem efeitos colaterais, está associado a menos dor e desconforto e reduz a duração do procedimento.

[Cystoscopy in the assessment of patients with bladder pain syndrome: Results of a national multicenter observational study.] / La cistoscopia en la evaluación del síndrome de dolor vesical: resultados de un estudio observacional multicéntrico nacional.

OBJECTIVES: To study the use and results of cystoscopy and bladder hydrodistension in the objective assessment of patients with Bladder Pain Syndrome (BPS), in routine clinical practice. MATERIAL AND METHODS: Observational, non-interventional, national, multicenter study carried out in Functional Urology and Urodynamic Units of Spain belonging to the IFU Group. 273 women with BPS who underwent cystoscopy at baseline as a diagnostic tool according to clinical criteria and following the routine clinical practice of each center, were studied. The pre and post hydrodistension findings and the scores of the symptom and Health-Related Quality of Life (HRQoL) questionnaires were described: BPIC-SS, PPBC, PGI-S and EQ-5D-5L. RESULTS: The mean age (SD) was 59 (14) years with a high presence of bladder symptoms: increased voiding frequency (81.7%), nocturia (74%) and urgency (60.4%). 40.7% of cystoscopies were performed under anesthesia and 73.7% uses a standard rigid cystoscope. Hunner lesions were observed in 9.9% of the patients, hypervascularizations (46.2%), glomerulations (23.4%), mild bleeding (6.6%) and scars (2.2%). After hydrodistension, a greater number of grade 1 and 2 lesions were observed. In 51.6% of the patients there were no changes, but in 27.5% slight changes were observed and in 11.4% moderate or severe changes. Symptom and HRQoL questionnaire scores showed no association with cystoscopy findings before and after hydrodistension. CONCLUSIONS: The value of the cystoscopic findings in the SDV has yet to be defined, although it plays a fundamental role in the differential diagnosis. In this observational study, we did not find a correlation of the cystoscopic findings with the symptoms of the patients, measured by validated questionnaires, nor with the HRQoL.

OBJETIVO: Analizar el uso y resultados de la cistoscopia y la hidrodistensión vesical para la evaluación objetiva de pacientes con Síndrome de Dolor Vesical (SDV), en el contexto de práctica clínica habitual.MATERIAL Y MÉTODOS: Estudio observacional, no intervencionista, multicéntrico de ámbito nacional, realizado en Unidades de Urología Funcional y Urodinámica de España pertenecientes al Grupo IFU en el que se analizaron 273 mujeres con SDV a las que se les realizó una cistoscopia a nivel basal como herramienta diagnóstica según criterio clínico y siguiendo la práctica clínica habitual de cada centro. Se describieron los hallazgos pre y post hidrodistensión y las puntuaciones de los cuestionarios de síntomas y de Calidad de Vida Relacionada con la Salud (CVRS): BPIC-SS, PPBC, PGI-S y EQ-5D-5L. RESULTADOS: La edad media (DE) fue de 59 (14) años con gran presencia de síntomas vesicales: frecuencia miccional aumentada (81,7%), nocturia (74,0%) y urgencia (60,4%). El 40,7% de las cistoscopias se realizaron bajo anestesia y en el 73,7% se empleó un cistoscopio rígido estándar. Se observaron lesiones de Hunner en un 9,9% de las pacientes, hipervascularizaciones (46,2%), glomerulaciones (23,4%), sangrado leve (6,6%) y cicatrices (2,2%). Tras la hidrodistensión se observó un mayor número de lesiones grado 1 y 2. En el 51,6% de las pacientes no hubo cambios, pero en el 27,5% se observaron cambios leves y en el 11,4% cambios moderados o graves. Las puntuaciones de los cuestionarios de síntomas y CVRS no mostraron asociación con los hallazgos de la cistoscopia antes y después de la hidrodistensión. CONCLUSIONES: El valor de los hallazgos cistoscópicos en el SDV está aún por definir, aunque juega un papel fundamental en el diagnóstico diferencial. En este estudio observacional no encontramos correlación de los hallazgos cistoscópicos con los síntomas de las pacientes, medidos por cuestionarios validados, ni con la CVRS.

La cistoscopia en la evaluación del síndrome de dolor vesical: resultados de un estudio observacional multicéntrico nacional / Cystoscopy in the evaluation of bladder pain syndrome: results of a national multicenter observational study

Objetivo: Analizar el uso y resultados dela cistoscopia y la hidrodistensión vesical para la evaluación objetiva de pacientes con Síndrome de DolorVesical (SDV), en el contexto de práctica clínica habitual.Material y métodos: Estudio observacional, nointervencionista, multicéntrico de ámbito nacional, realizado en Unidades de Urología Funcional y Urodinámica de España pertenecientes al Grupo IFU en el quese analizaron 273 mujeres con SDV a las que se lesrealizó una cistoscopia a nivel basal como herramientadiagnóstica según criterio clínico y siguiendo la prácticaclínica habitual de cada centro. Se describieron los hallazgos pre y post hidrodistensión y las puntuaciones de los cuestionarios de síntomas y de Calidad de Vida Relacionada con la Salud (CVRS): BPIC-SS, PPBC, PGI-Sy EQ-5D-5L.Resultados: La edad media (DE) fue de 59 (14) añoscon gran presencia de síntomas vesicales: frecuenciamiccional aumentada (81,7%), nocturia (74,0%) y urgencia (60,4%). El 40,7% de las cistoscopias se realizaron bajo anestesia y en el 73,7% se empleó uncistoscopio rígido estándar. Se observaron lesiones deHunner en un 9,9% de las pacientes, hipervascularizaciones (46,2%), glomerulaciones (23,4%), sangradoleve (6,6%) y cicatrices (2,2%). Tras la hidrodistensiónse observó un mayor número de lesiones grado 1 y2. En el 51,6% de las pacientes no hubo cambios,pero en el 27,5% se observaron cambios leves y en el11,4% cambios moderados o graves. Las puntuacionesde los cuestionarios de síntomas y CVRS no mostraronasociación con los hallazgos de la cistoscopia antes ydespués de la hidrodistensión. Conclusiones: El valor de los hallazgos cistoscópicos en el SDV está aún por definir, aunque juega unpapel fundamental en el diagnóstico diferencial. En esteestudio observacional no encontramos correlación delos hallazgos cistoscópicos con los síntomas de las pacientes, medidos por cuestionarios validados, ni con laCVRS.(AU)

Objetives: To study the use and resultsof cystoscopy and bladder hydrodistension in the objective assessment of patients with Bladder Pain Syndrome(BPS), in routine clinical practice.Material and methods: Observational, non-interventional, national, multicenter study carried out inFunctional Urology and Urodynamic Units of Spain belonging to the IFU Group. 273 women with BPS whounderwent cystoscopy at baseline as a diagnostic toolaccording to clinical criteria and following the routineclinical practice of each center, were studied. The preand post hydrodistension findings and the scores of thesymptom and Health-Related Quality of Life (HRQoL)questionnaires were described: BPIC-SS, PPBC, PGI-Sand EQ-5D-5L.Results: The mean age (SD) was 59 (14) years witha high presence of bladder symptoms: increased voiding frequency (81.7%), nocturia (74%) and urgency(60.4%). 40.7% of cystoscopies were performed under anesthesia and 73.7% uses a standard rigid cystoscope. Hunner lesions were observed in 9.9% of thepatients, hypervascularizations (46.2%), glomerulations(23.4%), mild bleeding (6.6%) and scars (2.2%). Afterhydrodistension, a greater number of grade 1 and 2lesions were observed. In 51.6% of the patients therewere no changes, but in 27.5% slight changes wereobserved and in 11.4% moderate or severe changes.Symptom and HRQoL questionnaire scores showed noassociation with cystoscopy findings before and afterhydrodistension.Cconclusions: The value of the cystoscopic findingsin the SDV has yet to be defined, although it plays afundamental role in the differential diagnosis. In this observational study, we did not find a correlation of thecystoscopic findings with the symptoms of the patients,measured by validated questionnaires, nor with theHRQoL.(AU)

Factores de riesgo y estrategias de prevención para el desarrollo de estrechez uretral de origen iatrogénico: Papel del urólogo / Risk Factors and Prevention Strategies for the Development of Urethral Stricture of Iatrogenic Origin: Role of the Urologist

La estrechez uretral constituye una patología con morbilidad importante en el sexo masculino. Se evidencia en la actualidad un cambio en la frecuencia de las etiologías, con la disminución de causas inflamatorias y una transición hacia la iatrogenia como la más común. Mediante la búsqueda del estado del arte en cuanto a los procedimientos diagnósticos y terapéuticos conocidos como factores asociados a la estrechez uretral iatrogénica, se realizó una revisión narrativa de la literatura con el fin de describir y generar estrategias para su prevención. De los procedimientos terapéuticos que originan la estrechez uretral como complicación, el sondaje vesical es la mayor causa (hasta 34,3%), seguido de la prostatectomía radical (29,9%). Una buena técnica de sondaje vesical orientada desde el adecuado entrenamiento del personal disminuye de forma considerable su incidencia. Por otra parte, la adecuada selección de tratamientos y aspectos técnicos en pacientes que requieren el manejo de patologías obstructivas del tracto urinario como la hiperplasia prostática y litiasis u oncológicas como el cáncer de próstata, son unas de las recomendaciones para la prevención de ese trastorno. El entendimiento de los factores de riesgo y la adherencia a las estr

Urethral stricture is a pathology with significant morbidity in men. There is current evidence of a change in the prevalence of etiologies, with a decrease in inflammatory causes and a transition towards iatrogenesis as the most frequent. Through the search for the state of art in terms of diagnostic and therapeutic procedures known as associated factors to iatrogenic urethral stricture, a narrative review has been performed, in order to describe and recommend strategies for its prevention. Of the therapeutic procedures that cause urethral stricture as a complication, bladder catheterization is the main (up to 34.3%), followed by radical prostatectomy (29.9%). A good bladder catheterization technique guided by adequate training of personnel considerably reduces its incidence. On the other hand, the proper selection of treatments and technical aspects in patients who require the management of obstructive pathologies of the urinary tract such as prostatic hyperplasia and lithiasis or oncological diseases such as prostate cancer, are some of the recommendations for the prevention of this disorder. Understanding risk factors and adherence to the prevention strategies described seek to reduce the incidence of iatrogenic urethral stricture

Cystoscopy and mucosectomy: Essentials in the management of persistent müllerian duct syndrome with transverse testicular ectopia. / Cistoscopia y Mucosectomia: Manejo del síndrome de persistencia de los conductos mullerianos con ectopia testicular transversa.

OBJECTIVES: The concurrence of Persistent Müllerian Duct Syndrome and transverse testicular ectopia is rare. The risk of damage to the vas deferens and the deferential blood supply hinders some surgeons from complete excision of potentially malignant Müllerian duct remnants. METHODS: We present a unique surgical technique of Persistent Müllerian Duct Syndrome in a patient with right inguinal hernia accompanying transverse testicular ectopia. RESULTS: During exploration, both testes were detected in the right inguinal canal. When the hernia sac was opened, a primitive uterus and fallopian tubes without fimbria were identified confirming Persistent Müllerian Duct Syndrome. A 4 Fr catheter was placed into the os of the Müllerian duct remnants via the verumontanumorifice, and then a urethral catheter was placed. The full-thickness excision of proximal Müllerian duct remnant swere performed. The distal part of Müllerian duct remnants was layed open and only mucosa was excised for preserving vas deferens. Resection was completed just above its junction with the urethra with the aid of 4Fr catheter marked at centimeter intervals and the cuffwas oversewn. High ligation for right inguinal hernia and bilateral orchidopexy were performed. CONCLUSIONS: Removal of Müllerian duct remnantsis advised in order to reduce the jeopardy of malignancy, urinary tract infections, stones and hematuria. On the other hand, excision down to urethra which can compromise the integrity and vascularity of the vas deferens is diffucult, even in experienced surgical hands. Complete excision of these structures by mucosectomy of the distal part of remnant which lay closed to vas deferens is a safe and effective method. Cystoscopy assistance and placement of a catheter into MDRs were essential for the complete excision of this mucosa. To the best of our knowledge, cystoscopy assisted mucosectomy in Persistent Müllerian Duct Syndrome has not been reported previously.

OBJETIVOS: La presencia de síndromede persistencia de los conductos mullerianos y ectopia testicular transversa es raro. El riesgo de dañar el conducto deferente y la vascularización diversa hace que muchos cirujanos no realicen una extirpación completa de los conductos mullerianos remanentes con riesgo de malignización.MÉTODOS: Presentamos una técnica quirúrgica única para la resección completa de los conductos mullerianos remanentes en pacientes con hernia inguinal derecha acompañada de ectopia testicular transversa. RESULTADOS: Durante la exploración física se detectaron ambos testículos en el canal inguinal derecho. Cuando abrimos el saco herniario, se observó un útero primitivo con trompas de falopio sin fimbrias confirmando el síndrome de persistencia de los conductos mullerianos. Se colocó un catéter 4 Fr en la punta del remanente mulleriano a través del orificio del verumontanumy a posteriori se colocó una sonda uretral. CONCLUSIONES: La extirpación del remanente del conducto mulleriano esta indicada para evitar la malignización, infecciones urinarias, litiasis y hematuria. Por otro lado, la extirpación hasta la uretra puede comprometer la vascularización y integridad del conducto deferente, siendo dificultosa hasta en manos expertas. La extirpación completa de las estructuras con mucosectomia de la parte distal del remanente es segura y eficaz. La ayuda de la cistoscopia y colocación de un catéter en el remanente son muy importantes para la resección completa. Esta es la primera descripción de mucosectomia asistida por cistoscopia en un síndrome de persistencia del remanente mulleriano hasta la fecha.

Intervenciones no farmacológicas para la disminución del dolor en cistoscopia / Non-Pharmacological Interventions to Reduce Pain in Cystoscopy

Objetivo Generar una aproximación a las terapias no farmacológicas que disminuyan el dolor durante la realización de la cistoscopia. Métodos Se realizó una búsqueda de la literatura para identificar artículos relevantes con respecto al tópico, utilizando como palabras clave: cistoscopia, dolor, terapia no farmacológica en cistoscopia y terapias alternativas. La búsqueda se hizo a través de Medline y Embase. Se realizó una revisión narrativa. Resultados Aunque la cistoscopia flexible aumenta la tolerancia, especialmente en pacientes masculinos, el dolor sigue siendo inevitable durante la misma. Se han estudiado diferentes intervenciones no farmacológicas orientadas a disminuir el dolor y la ansiedad durante la cistoscopia, entre las que se encuentran: escuchar música, tomar la mano del paciente, ver el procedimiento en tiempo real, el aumento de la presión hidrostática, insuflación con aire y la hipnosis. Conclusión Esas intervenciones podrían ser usadas como adyuvantes en la disminución del dolor y la ansiedad durante la cistoscopia, principalmente la masculina. Sin embargo, se requieren más estudios que comprueben su uso clínico apropiado.

Objective To generate an approach to non-pharmacological therapies that reduce pain during cystoscopy. Methods We searched the literature to identify relevant articles regarding the topic, using as keywords: cystoscopy, pain, non-pharmacological therapy in cystoscopy and alternative therapies. The search was made through Medline and Embase. A narrative review was made. Results Although flexible cystoscopy increases tolerance, especially in male patients, pain remains unavoidable during it. Different non-pharmacological interventions aimed at reducing pain and anxiety during cystoscopy have been studied, among which are: listening to music, taking the patient's hand, seeing the procedure in real time, increasing hydrostatic pressure, insufflation with air and hypnosis. Conclusion These interventions could be used as adjuvants in the reduction of pain and anxiety during cystoscopy, mainly male. However, more studies are required to prove their appropriate clinical use.

Dehiscencia de cistorrafia en pacientes con embolización de arterias uterinas por acretismo placentario: reporte de dos casos / Cistorraphy dehiscence in patients with uterine arteries embolization due to placentary acretism: report of two cases

Resumen: ANTECEDENTES: La incidencia de percretismo varía de 5-7% y de ésta, 78% corresponde a complicaciones relacionadas con la cirugía. Hasta la fecha existen pocos casos reportados de dehiscencia de cistorrafia posterior a la embolización de arterias uterinas. CASOS CLÍNICOS: Caso 1. Paciente de 34 años, con embarazo de 36 semanas y diagnóstico de acretismo placentario. El tratamiento consistió en embolización de arterias uterinas e histerectomía subtotal, con lesión vesical reparada sin complicaciones. Dos semanas después del alta hospitalaria acudió a consulta por pérdida de orina y fiebre (pielonefritis aguda); se estableció el diagnóstico de dehiscencia de cistorrafia por tomografía y cistografía retrógrada. Se realizó cateterización ureteral bilateral, laparotomía exploradora con traquelectomía, resección de los bordes necróticos vesicales y cistorrafia. Caso 2. Paciente de 30 años, con embarazo de 37 semanas y acretismo placentario; se aplicó tratamiento similar al caso 1, del que devino una lesión vesical reparada sin complicaciones. Durante la hospitalización permaneció en vigilancia por hemorragia obstétrica e infección urinaria con mala evolución; dos semanas después tuvo pérdida de orina, por lo que se efectuaron: cistoscopia, tomografía y cistografía retrógrada. Se estableció el diagnóstico de dehiscencia de cistorrafia. Durante la cirugía se localizó el defecto por cistoscopia e histeroscopia, se cateterizaron los uréteres de ambos lados; posteriormente, mediante acceso laparoscópico, se resecaron los bordes vesicales necróticos y se complementó con cistorrafia. Ambas pacientes evolucionaron sin complicaciones. CONCLUSIÓN: La dehiscencia de cistorrafia en pacientes con embolización de arterias uterinas es una complicación excepcional. La sospecha diagnóstica y el tratamiento oportunos, con resección de los bordes necróticos y cistorrafia, se asocian con mayor tasa de éxito.

Abstract: BACKGROUND: The incidence of percretism is 5-7% with 78% of complications associated with surgical management. There are few reported cases of cystorraphy dehiscence after uterine arteries embolization. CLINICAL CASES: Case 1. A 34 years old patient with a pregnancy of 36 5/7 weeks and acretism; she was treated with uterine artery embolization plus subtotal hysterectomy with bladder injury repaired without complications. She was discharged, and in 2 weeks she consulted for vaginal urine loss and fever (acute pyelonephritis); cystorraphy dehiscence was diagnosed with support of tomography and retrograde cystography. Bilateral ureteral catheterization, laparotomy with trachelectomy plus resection of bladder necrotic edges and cystorraphy were performed. Case 2. A 30 years old patient with a pregnancy of 37 5/7 weeks and acretism; equal treatment of acretism was given with bladder injury repaired without complications. She was hospitalized in surveillance for obstetric haemorrhage and urinary infection with torpid evolution; she referred vaginal urine loss at 2 weeks, so cystoscopy, tomography and retrograde cystography were performed which diagnosed cystorraphy dehiscence. In surgery the bladder defect was located by cystoscopy and hysteroscopy and bilateral ureters were catheterized; subsequently, by laparoscopic approach necrotic bladder edges were resected and cystorraphy was performed. Both patients without complications and with successful postoperative evolution. CONCLUSION: Cystorraphy dehiscence in embolized patients is extremely rare; however, it should be considered as a possible complication. Diagnostic suspicion and timely management with resection of necrosis and new cystorraphy, achieve greater success.

[Flexible cystoscope for the treatment of urinary stones in intestinal reservoirs.] / Cistoscopia flexible para el tratamiento de las litiasis urinarias en reservorios intestinales.

OBJECTIVE: Stones are common mid- and long-term complications in urinary diversions built with bowel. However the reservoir intestinal loops can lead to difficult endoscopic approach. METHODS: We report two challenging cases with unfavourable anatomy successfully treated by gently handling a flexible cystoscope in a low pressure system. RESULTS: One patient with stones in a continent pouch was cleaned up with a grasping basket through the efferent umbilical limb. Another patient with an orthotopic ileal neobladder not accessible by rigid cystoscope due to high pelvic floor was treated with holmiun laser lithotripsy. CONCLUSIONS: Urologists should consider the versatility of flexible cystoscope to obviate the need for percutaneous lithotripsy or open lithotomy.

OBJETIVO: La aparición de litiasis es una complicación común a medio y largo plazo en las derivaciones urinarias construidas con intestino. Sin embargo, las asas intestinales de los reservorios pueden tener un acceso endoscópico difícil. METODOS: Presentamos dos casos difíciles con anatomía desfavorable tratados con éxito utilizando cuidadosamente un cistoscopio flexible en un sistema de baja presión. RESULTADOS: Un paciente con litiasis en una neovejiga continente quedó libre de litiasis utilizando una cestilla a través del asa eferente umbilical. Otro paciente con una neovejiga ileal ortotópica no accesible por cistoscopio rígido debido a un suelo pélvico elevado, fue tratado con litotricia con láser de Holmio. CONCLUSIONES: Los urólogos deben considerar la versatilidad de la cistoscopia flexible para obviar la necesidad de litotricia percutánea o litotomía abierta.

[Influence of systematic antibiotic prophylaxis and/or cystoscope cleaning/disinfecting method on urinary culture becoming positive after outpatient flexible cystoscopy.] / Influencia de la profilaxis antibiótica sistematica y/o el método de limpieza/desinfeccion del cistoscopio en la positivización del cultivo tras cistoscopia flexible ambulatoria.

INTRODUCTION AND OBJECTIVES: To evaluate the efficacy of antibiotic prophylaxis as well as the cleaning/disinfection procedures to prevent urinary tract infection in patients undergoing office flexible cystoscopy. METHODS: A prospective, randomized study was performed between June 2015 to May 2016 including every patient who underwent flexible cystoscopy at the Urology outpatient unit. Patients with temporary or permanent urinary stents were excluded from the study as well as procedures that involved bladder biopsies. A total of 251 patients were recruited. Urinary culture was collected in all of the patients before and after the procedure. Patients were randomized in two groups: Antibiotic prophylaxis versus no prophylaxis. Antibiotic prophylaxis consisted in 4 doses of Norfloxacin ( 400mg ): twice a day during two days. Three different cleaning/ disinfection methods were used: manual adasport (5% peracetic acid), manual oxide (instrunet sporicidal; Inibsa) and washing machine (Olympus, mini ETD 2). Demographic characteristics such as gender and age were collected during the study. Relationship between antibiotic prophylaxis, type of cleaning/disinfection procedure, demographic characteristics and positive urinary culture after procedure were analysed. Measures to avoid bias: Randomization. RESULTS: Urinary culture before cystoscopy was negative in 231 patients (92.4%), positive in 19 (7.6%) and not valid in 1. After randomization, 129 patients were included in Group 1(no prophylaxis) and 117 in Group 2 (antibiotic prophylaxis), 5 patients dropped from the study. After-procedure culture was negative in 224 patients (91.1%) and positive in 22 (8.9%). There was no statistical significance between urine culture results before and after cystoscopy and the demographic characteristics collected. Furthermore, no statistical differences were seen between urine culture after cystoscopy and cystoscope cleaning method ( p = 0.7), or between urine culture and type of cleaning with or without antibiotic prophylaxis ( p = 0.5, p = 0.9 ). CONCLUSIONS: None of the analyzed variables influenced the positivity of urine culture after flexible cystoscopy. Routine antibiotic prophylaxis should not be further recommended.

INTRODUCCIÓN Y OBJETIVOS: El uso indisciminado de antibióticos ha incrementado las resistencias antimicrobianas, constituyendo un problema de salud global. Identificar aquellas situaciones en las que la profilaxis antibiótica es indicada pero podria ser prescindible es fundamental para disminuir dichas resistencias. La cistoscopia flexible es un procedimiento habitual en la práctica clínica, con un uso extensivo de dicha profilaxis. El objetivo del presente trabajo es evaluar la eficacia de la profilaxis antibiótica y el método de limpieza/desinfección para prevenir la positivización del cultivo urinario en pacientes sometidos a cistoscopia flexible. MATERIAL Y MÉTODOS: Se realizó un estudio prospectivo, aleatorizado y randomizado entre junio de 2015 y mayo de 2016 en pacientes sometidos a cistoscopia flexible en la consulta de urología. Los pacientes con catéteres urinarios temporales o permanentes se excluyeron del estudio, así como los procedimientos que requirieron biopsias vesicales. Se reclutaron un total de 251 pacientes. Se recolectó cultivo urinario en todos los pacientes antes y después del procedimiento. Los pacientes se dividieron aleatoriamente en dos grupos: profilaxis antibiótica versus no profilaxis. La profilaxis con antibióticos consiste en 4 dosis de norfloxacina (400 mg) dos veces al día durante dos días. El tipo de limpieza/desinfección incluye: adasport manual(ácido peracético 5%), detergente enzimático(instrunet esporicida; Inibsa), lavadora(Olympus, mini ETD 2). También se recopilaron características demográficas, como el sexo y la edad. Se analizó la relación entre la profilaxis antibiótica, el tipo de procedimiento de limpieza/desinfección, las características demográficas y el cultivo urinario positivo después del procedimiento. Medidas para evitar sesgos: Aleatorización. RESULTADOS: El cultivo urinario previo a la cistoscopia fue: negativo en 231 pacientes (92,4%) y positivo en 19 (7,6%); nulo en 1. Después de la aleatorización, 129 pacientes se incluyeron en el Grupo 1 (sin tratamiento antibiótico) y 117 en el Grupo 2 (profilaxis con antibióticos), autoexcluyéndose 5 pacientes. Después del procedimiento, el cultivo fue negativo en 224 pacientes (91,1%) y positivo en 22 (8,9%). No hubo significados estadísticos entre los resultados del cultivo de orina antes y después de la cistoscopia y las características demográficas. Además, no se observaron diferencias estadísticas entre el cultivo de orina post cistoscopia y el tipo de procedimiento de limpieza empleado ( p = 0,7 ), o entre el cultivo de orina y el tipo de limpieza con o sin profilaxis antibiótica ( p = 0,5, p = 0,9 ). CONCLUSIONES: Ninguna de las variables analizadas influye en la positivización del cultivo de orina después de la cistoscopia. La profilaxis antibiótica rutinaria debería ser evitada, ya que no influye en la positivización del cultivo urinario, incrementa las resistencias bacterianas y aumenta el gasto sanitario. El uso de uno u otro método de desinfección del cistoscopio tampoco parece influir en la positivización del cultivo, por lo que no podemos realizar ninguna recomendación, y la elección queda sujeta a criterios de cada departamento de urología.

Evaluación de la eficacia de fosfomicina trometamol y gentamicina en la profilaxis de la cistoscopia flexible tras el estudio de los patógenos de nuestro entorno / Evaluation of the Efficacy of Fosfomycin Trometamol and Gentamicin in the Prophylaxis of Flexible Cystoscopy after the Study of Microflora in our Environment

Objetivo Optimizar el uso de antibióticos en la profilaxis de la cistoscopia flexible estudiando los patógenos más frecuentes de nuestro entorno y eligiendo el antibiótico según sus antibiogramas. Métodos Desde Enero del 2015 hasta Noviembre del 2015, se analizaron los urinocultivos de nuestra área, se eligió el antibiótico en función a su sensibilidad frente a los patógenos más frecuentes y se comparó con un antibiótico de amplio espectro. Desde Enero del 2016 hasta Diciembre del 2016, se realizaron las cistoscopias agrupando a los pacientes en: Grupo 1: Pacientes sin profilaxis; Grupo 2: Profilaxis con Gentamicina 240 mg; Grupo 3: Profilaxis con antibiótico seleccionado. Como variables principales se definieron la presencia de bacteriuria asintomática e ITU tras la realización de la cistoscopia flexible. Resultados Se analizaron 8.530 urinocultivos y se eligió la Fosfomicina Trometamol 3 gr como profilaxis. Se realizaron 244 cistoscopias distribuidas: Grupo 1: 86 (35%); Grupo 2: 72 (30%); Grupo 3: 86 (35%). Se detectó bacteriuria asintomática postcistoscopia en 6 pacientes (2,5%) en el Grupo 1, 7 pacientes (2,9%) en el grupo 2 y 5 pacientes (2%) en el grupo 3 no presentando diferencias significativas (p 0.120). Desarrollaron ITUs postcistoscopia 1 paciente (0,4%) en el Grupo 1, 5 pacientes (2%) en el Grupo 2 y 2 pacientes (0,8%) en el Grupo 3 sin diferencias significativas (p 0.105). Conclusión La Fosfomicina es tan efectiva como la Gentamicina en la profilaxis de la cistoscopia. Para un uso correcto de los antibióticos, se recomienda el estudio de los patógenos de nuestro entorno.

Objective To optimize the use of antibiotics in the prophylaxis of flexible cystoscopy by studying the most frequent pathogens in our environment and choosing the antibiotic according to its antibiograms. Method Between January 2015 and November 2015, urine cultures were analyzed in our area, the antibiotic was chosen based on its sensitivity to the most frequent pathogens and compared with a broad spectrum antibiotic. From January 2016 to December 2016, cystoscopy was performed by grouping patients into: Group 1 - Patients without prophylaxis, Group 2 - Prophylaxis with 240 mg gentamicin, Group 3 - Selected antibiotic prophylaxis. The main variables were the presence of asymptomatic bacteriuria and UTI after flexible cystoscopy. Results 8530 urine cultures were analyzed and 3 g of fosfomycin trometamol was chosen as the prophylactic. There were 244 cystoscopies: Group 1: 86 (35%); Group 2: 72 (30%); Group 3: 86 (35%). Asymptomatic bacteriuria was detected in 6 patients (2.5%) in Group 1, 7 patients (2.9%) in Group 2 and 5 patients (2%) in Group 3, showing no significant differences (p = 0.120). Post-cystoscopic urinary tract infection developed in 1 patient (0.4%) in Group 1, 5 patients (2%) in Group 2 and 2 patients (0.8%) in Group 3, which showed no significant differences (p 0.105). Conclusion Fosfomycin is as effective as Gentamicin as a prophylactic in cystoscopy. The study of the pathogens in each environment is recommended to correctly prescribe the antibiotic.

Urinary bladder xanthoma: Two case reports and a review of the literature.

OBJECTIVE: We present two rare cases ofbladder xanthomata associated with transitional cell carcinoma. METHOD AND RESULTS: Cases description and selectionof related pictures. Review of the existing literature. CONCLUSIONS: Xanthomata are non-neoplastic lesionsconsisting of group of foamy lipidstoring histiocytes in thedermis of skin or in the lamina propria of mucosa. Urinarybladder is an uncommon localization for these lesions andtheir etiology isn't still well understood, being variably associatedwith abnormalities of lipid metabolism. Althoughsometimes they are described in association with urothelialneoplasms, they were not believed to have any biologicalneoplastic potential and so they are treated consequently.

OBJETIVO: Presentamos dos raros casos de Xantoma vesical asociado con carcinoma de células transicionales.MÉTODOS Y RESULTADOS: Descripción de los casos y selección de imágenes relacionadas. Revisión de la bibliografía existente. CONCLUSIONES: Los xantomas son lesiones no neoplásicas constituidas por grupos de histiocitos espumosos almacenadores de lípidos en la dermis cutánea o en la lámina propia de la mucosa. La vejiga urinaria es una localización rara de estas lesiones y su etiología no se entiende bien todavía, asociándose variablemente con anomalías del metabolismo lipídico. Aunque a veces se describen en asociación con neoplasias uroteliales, no se piensa que tengan ningún potencial neoplásico y consecuentemente así se tratan.

Office stent placement under local anesthesia is a safe and efficient procedure for the management of multiple ureteral disorders. / La colocación de catéteres doble J con anestesia local en régimen ambulatorio es un procedimiento seguro y eficiente para el manejo de distintas patologías ureterales.

OBJECTIVE: To assess the outcomes of ureteral stent placement under local anesthesia for the management of multiple ureteral disorders. METHODS: Retrospective study of 45 consecutive ureteral stents placed under local anesthesia from January 2015 to July 2016. Inclusion criteria were hemodynamically stable patients with urinary obstruction, urinary fistula or for prophylactic ureteral localization during surgery. Five minutes before the procedure, 10ml of lidocaine gel and 50ml of lidocaine solution were instilled in the bladder. A 4.8Fr ureteral stent was placed using a 15.5Fr flexible cystoscope under fluoroscopic control. Characteristics of procedures and outcomes were analysed. RESULTS: A total of 45 procedures (33 placement, 12 replacements) were attempted in 37 patients, of which 40 (89%) were successful. There were 10 male (27%) and 27 female patients (73%) with a mean age of 58.6 years (±17.5). Main indications for stent placement were stones (37.8%), extrinsic ureteral compression (28.9%) and surgery ureteral localization (22.2%). The reasons for failing to complete a procedure were the inability to pass the guidewire/stent in 4 cases (8.8%) or to identify the ureteral orifice in 1 (2.2%). Postoperative complications occurred in 8 patients (17.8%) (7 Clavien I, 1 Clavien IIIa). No procedure was prematurely terminated due to pain. Statistical analysis did not find significant successful predictors. The outpatient setting provided a fourfold cost decrease. CONCLUSIONS: Ureteral stent placement can be safely and effectively performed under local anesthesia in the office cystoscopy room. This procedure could free operating room time, reduce costs and minimize side effects of general anesthesia.

Virtual cystoscopy, computed tomography urography and optical cystoscopy for the detection and follow-up for bladder cancer. / Cistoscopia virtual, urografía por tomografía computarizada y uretrocistoscopia óptica en el diagnóstico y el seguimiento del cáncer de vejiga.

OBJECTIVES: To evaluate the utility of virtual cystoscopy (VC) performed with CT urography in patients being studied under gross hematuria or patients being followed-up after a previous bladder cancer and compare the results with those obtained with gold standard technique (optical cystoscopy). METHODS: Retrospective study of 117 patients who were referred for VC by the Urology Department between May 2014 and May 2015. Those patients presented with gross hematuria or they were previously treated patients from bladder cancer being followed up. These patients were evaluated with MDCT and virtual cystoscopy after distending the bladder with air. The results were compared with those obtained with optical cystoscopy which was performed no more than a week after. RESULTS: The global sensitivity and specificity of VC were 81,8 and 92,1%. Aditional findings detected in CT urography were an aortic dissection, urinary lithiasis and colonic metastasis. CONCLUSION: VC seems an useful technique in the diagnosis and follow-up for bladder cancer with a good correlation with OC. The main limitations are the impossibility of biopsy during the procedure and the detection of erythematous lesions. Collateral findings can be detected performed with CT urography although the high radiation exposure does not recommend their combined use.

Predicting results of daily-practice cystoscopies.

OBJECTIVE: Our objective was to elaborate a predictive model of bladder cancer, in an unselected clinical population submitted to cystoscopy. MATERIALS AND METHODS: We recruited consecutive patients that underwent cystoscopy due to suspicion of bladder cancer or surveillance of a previously diagnosed bladder cancer. Urine cytology and a BTA-stat® (BTA) test were carried out for all patients. To avoid an assessment bias, the BTA-tests, cytologies and cystoscopies were conducted in a blinded fashion. We used logistic regression to predict cystoscopy results from cytology, BTA-test and clinical variables. RESULTS: From August 2011 to July 2012, we recruited 244 patients and 237 were valid for analysis. Newly diagnosed and surveillance cases were 13% and 87% respectively. Cytology and BTA-test sensitivities were 57.9% (CI 95: 42.2-72.1) and 63.2% (CI 95: 47.3-76.6) with specificities of 84.4% (CI 95: 78.7-88.8) and 82.9% (CI 95: 77.1-87.5). The predictive model included the BTA-test, cytology, time since previous tumour, and treatment with mitomicin or BGC during the last three months. The model predictive accuracy (AUC) was .85 (.78-.92), and dropped to 0.79 when excluding the BTA-test (P=.026). For the surveillance of bladder cancer, a 10% threshold on the model predicted probabilities resulted in an overall negative predictive value of 95.7%, and 95.0% in low grade tumours. CONCLUSION: In a cost containment environment, our prediction model could be used to space out cystoscopies in patients with previous, low grade tumours, resulting in a more efficient use of resources in the healthcare system.