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1.
World J Urol ; 42(1): 329, 2024 May 16.
Artículo en Inglés | MEDLINE | ID: mdl-38753120

RESUMEN

PURPOSE: To define a peak force of insertion (PFOI) threshold for ureteral damage during ureteral access sheath (UAS) placement on an experimental ureteral orifice model. METHODS: A specially designed water tank using 2 laparoscopic 5 mm ports and 2 different size (10 Fr and 8 Fr) sealing cap adaptors (SCA) as ureteral orifices was used to perform the test. A 10-12 Fr UAS was fixed to a load cell and the force of insertion (FOI) was continuously recorded with a digital force gauge.13 experts in the field of endourology who participated performed 3 UAS insertions. The FOI was recorded initially with 10 Fr followed by 8 Fr SCA. On the final insertion, the orifice was obstructed, leaving a 5 cm length to insert the UAS. The experts were asked to "Stop at the point they anticipate ureteral damage, and they would not proceed in real life". RESULTS: Using 10 Fr SCA the PFOI was 2.12 ± 0.58 Newton (N) (range:1.48-3.48) while 8 Fr SCA showed a PFOI 5.76 ± 0.96 N (range:4.05-7.35). Six of the experts, said they would stop proceeding when they reached above 5.1 N. Three experts had PFOI < 5.1 N and the other 4 stated they would go with PFOIs of 5.88, 6.16, 6.69 and 7.35 N when using SCA of 8 Fr.The highest load they would stop proceeding had a PFOI of 6.09 ± 1.87 N (range: 2.53-10.74). CONCLUSION: The PFOI threshold for ureteral damage inserting UAS of the experts is variable. Although FOI is a subjective perception, experience suggests that ureteral injury may occur at an average of 6.05 N perceived by surgeons' tactile feedback. In-vivo measurement of UAS PFOI may confirm a threshold.


Asunto(s)
Uréter , Uréter/lesiones , Humanos , Procedimientos Quirúrgicos Urológicos/métodos , Cirujanos
2.
Can J Urol ; 29(5): 11307-11311, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-36245201

RESUMEN

INTRODUCTION: Due to the COVID-19 pandemic teleconsultation was allowed as an insured service in the province of Quebec, Canada. We assessed the preferences of vasectomized patients for a pre-vasectomy consultation conducted in-person or by telephone. MATERIALS AND METHODS: In September 2021, we sought the participation of 214 men who had their pre-vasectomy consultation over the phone to complete an anonymous three-item survey on their preferred modality for pre-vasectomy consultation. They completed their questionnaire in the waiting room of the vasectomy clinic just after the surgical procedure. We calculated the proportion and 95% confidence interval [CI] of patients preferring each modality. We assessed the difference in preference according to the distance between hometown and vasectomy clinic (< 25 km, 25-50 km, and > 50 km) with Fisher's exact test. RESULTS: Participation rate was 98% (n = 209/214). Most patients would have preferred telephone over in-person pre-vasectomy consultation if they had been given a choice (96%; 95% CI 92% to 98%), if they had had to recommend a modality to a friend (95%; 95% CI 91% to 98%), and if they had had to do a pre-vasectomy consultation again (prefer or no preference; total 97%; 95% CI 94% to 99%). Distance between hometown and vasectomy clinic did not significantly influence their preferences (p > 0.29 for each of the three items). CONCLUSIONS: Vasectomized men preferred having pre-vasectomy consultation by telephone instead of in person. If maintained as an insured service after the COVID-19 pandemic, Canadian physicians offering vasectomy services should consider making this service available to their patients.


Asunto(s)
COVID-19 , Vasectomía , COVID-19/epidemiología , Canadá , Humanos , Masculino , Pandemias , Derivación y Consulta , Encuestas y Cuestionarios , Teléfono
3.
J Urol ; 206(1): 109-114, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-33683940

RESUMEN

PURPOSE: A fresh post-vasectomy semen analysis showing 100,000 nonmotile sperm/mL or less confirms sterility. Mailed sample or self-testing at home with SpermCheck® Vasectomy decreases the inconvenience of producing a fresh sample, but without assessing motility. We evaluated if there is a sperm concentration under which no motile sperm are observed that could fortify the use of these alternatives. MATERIALS AND METHODS: We conducted a study of post-vasectomy semen analyses performed at the andrology laboratory of the Quebec City university hospital, Canada. Sperm concentration and motility were assessed on fresh noncentrifuged 10 µL samples at 400× magnification. We calculated the proportion of post-vasectomy semen analysis showing motile sperm according to sperm concentration for all and first prescribed post-vasectomy semen analysis by the 5 physicians who performed the most vasectomies. RESULTS: We identified 6,492 post-vasectomy semen analyses prescribed by 169 physicians. The 5 vasectomists prescribed 95.6% (6,204) of the post-vasectomy semen analyses; 96.1% (5,965) were first tests. We observed motility in all sperm concentration strata but it decreased with lower concentrations. At the first post-vasectomy semen analysis, among patients with less than 1 million, 250,000 and 100,000 sperm/mL, 0.5% (27/5,842) and 0.3% (19/5,760 and 17/5,725) had motility, respectively. CONCLUSIONS: If the first post-vasectomy semen analysis on a mailed sample shows less than 1 million sperm/mL, we recommend requesting an additional mailed sample instead of a fresh sample. SpermCheck Vasectomy could falsely indicate a successful vasectomy in a very small proportion of cases. The optimal post-vasectomy semen analysis strategy must involve shared decision making, balancing the inconvenience of providing a fresh sample with the risk of a false-negative result.


Asunto(s)
Recuento de Espermatozoides , Motilidad Espermática , Vasectomía , Adulto , Humanos , Masculino , Estudios Retrospectivos , Resultado del Tratamiento
4.
World J Urol ; 39(2): 555-561, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32382840

RESUMEN

PURPOSE: To evaluate the feasibility of measuring the intrapelvic pressure (IPP) during f-URS with a wire including a pressure sensor and to assess IPP profiles during the procedure. METHODS: Patients undergoing f-URS for stone disease were recruited. A wire with pressure sensor was placed in the renal cavities to measure IPP. For these cases, either no ureteral access sheath (UAS) or 10/12 or 12/14-Fr UASs were used according to surgeon discretion. Irrigation was ensured by a combination of a continuous pressure generator set at 80 cmH2O and a hand-assisted irrigation system providing on-demand forced irrigation to provide proper visibility. Pressures were monitored in real time and recorded for analysis. RESULTS: Four patients undergoing five f-URS were included. IPP monitoring was successful in all patients. Mean baseline IPP was 6 cmH2O. During f-URS with only the endoscope in the renal cavities and irrigation pressure set at 80 cmH2O without any forced irrigation, the mean IPP was 63 cmH2O. Mean IPP during laser lithotripsy with the use of on-demand forced irrigation was 115.3 cmH2O. The maximum pressure peaks recorded during this therapeutic period using forced irrigation ranged from 289.3 to 436.9 cmH2O. CONCLUSION: High IPP levels may be achieved during f-URS with on-demand irrigation systems. The impact of these high pressures on the risk of complications and long-term consequences still need to be evaluated adequately. But, in this preliminary pilot study, IPP could be reliably and conveniently monitored and recorded using a wire with a digital pressure sensor.


Asunto(s)
Cálculos Renales/cirugía , Monitoreo Intraoperatorio/instrumentación , Ureteroscopía , Adulto , Anciano , Diseño de Equipo , Estudios de Factibilidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pelvis , Proyectos Piloto , Presión , Ureteroscopios , Ureteroscopía/instrumentación
5.
World J Urol ; 39(9): 3623-3629, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-33688992

RESUMEN

OBJECTIVE: To explore the risk of encrustation and biofilm formation for silicone ureteral stents compared to percuflex polymer stents, through a randomized multicenter study. PATIENTS AND METHODS: Design, setting and participants: A Multicenter, prospective, randomized, single blind, comparative study of hydrocoated silicone stent (Coloplast Imajin® hydro) versus Percuflex™ Plus stent (Boston Scientific), in 141 patients treated by flexible URS for a kidney stone. The study had ethical committee approval in the respective hospitals. Outcome measurements and statistical analysis: Endpoints related to encrustation were biofilm formation and mineral encrustation after a period of 3-week indwelling time. They were evaluated at removal through a scoring scale of ureteral stents encrustation, infrared spectroscopy and optical microscopy of inner and outer surfaces of tips, angles and along the stent's body. Comparison was performed using ANOVA. RESULTS: 119 stents were available after removal for analysis, 56 in the silicone and 63 in the Percuflex TM Plus group. Mean dwelling duration was 21.8 days for silicone, 22.1 days for PercuflexTM Plus. There was significantly more biofilm on Percuflex™ Plus compared to silicone (1.24 ± 0.08 vs 0.93 ± 0.09, p = 0.0021), and more mineral encrustation (1.22 ± 0.10 vs 0.78 ± 0.11, p = 0.0048), respectively. CONCLUSIONS: This multicenter randomized study shows that silicone-hydrocoated stents are less prone to encrustation than PercuflexTM Plus after a 3-week dwelling period and confirms the low encrustation potential of silicone.


Asunto(s)
Biopelículas , Materiales Biocompatibles Revestidos , Polímeros , Complicaciones Posoperatorias/etiología , Siliconas , Stents/efectos adversos , Uréter/cirugía , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Diseño de Prótesis , Método Simple Ciego , Factores de Tiempo
6.
J Urol ; 204(4): 769-777, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32364838

RESUMEN

PURPOSE: We compared the hydrocoated silicone stent (Coloplast Imajin® hydro) to Percuflex™ Plus stent (Boston Scientific) in terms of patient comfort and quality of life after flexible ureteroscopy for stone disease over a 5-week prospective followup. MATERIALS AND METHODS: This is a multicenter, single-blind, prospective, randomized trial of 141 patients treated with flexible ureteroscopy for renal stones. Primary outcome was Ureteral Stent Symptom Questionnaire (USSQ) Body Pain Index recorded before Double-J® stent removal at day (D) 20. Secondary endpoints were USSQ scores at intermediate dates (D2, D7, D20) and 2 weeks after stent withdrawal (D35), occurrence of adverse events and stent encrustation. RESULTS: The trial was completed by 113 (80.1%) patients. Mean (SD) USSQ body pain scores were 25% lower at D20 for the silicone stent at 18.7 (11.4) vs 25.1 (14.2) (p=0.015). No difference in terms of adverse events and safety profile was observed. USSQ urinary symptoms scores at D2, D7 and D20 were lower in the silicone stent group at 26.4 (7.7) vs 31.8 (8.1) at D20 (p <0.001). The use of USSQ self-questionnaires was associated with a limited number of missing or incomplete answers. CONCLUSIONS: The primary results of this large sample prospective randomized controlled study comparing the silicone Imajin hydro stents to the Percuflex Plus stent show that silicone stents are associated with significantly less patient discomfort. We would recommend their use in patients who require stenting for stone disease.


Asunto(s)
Cálculos Renales/cirugía , Calidad de Vida , Stents , Ureteroscopía , Adulto , Femenino , Humanos , Cálculos Renales/diagnóstico , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Diseño de Prótesis , Siliconas , Método Simple Ciego , Evaluación de Síntomas , Uréter , Ureteroscopía/métodos
7.
World J Urol ; 38(9): 2301-2306, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31768615

RESUMEN

PURPOSE: Use of medical expulsive therapy (MET) is common practice in urology for the treatment of symptomatic urolithiasis, despite this its efficacy is debated. Its use in pregnancy is controversial. Our objective was to evaluate the safety and efficacy of Tamsulosin as a MET in pregnant women. MATERIAL AND METHODS: We retrospectively identified pregnant patients who presented with renal colic at the CHU de Québec from 2000 to 2015. We compared patients who received Tamsulosin as MET to a control group without MET. We evaluated efficacy as passage rate of lithiasis and necessity of intervention. We evaluated safety of the treatment according to fetal outcomes (birth weight, APGAR, gestational age). RESULTS: We evaluated 207 pregnant patients presenting renal colic, 69 patients in the MET group were compared to 138 patients in the control group. Of these, 48 (70%) in the Tamsulosin therapy group and 76 (56%) in the control group had proven urolithiasis. No significant difference was found for mean gestational age at birth, birth weight and APGAR. No sudden infant death syndrome was encountered in Tamsulosin group. There was no significant difference for length of hospital stay and need for surgical intervention. The spontaneous passage rate was 58% (25/48) in the MET group compared to 43% (29/76), but this difference was not statistically significant (p = 0.18). CONCLUSIONS: Short-term utilisation of Tamsulosin as MET in second and third trimester of pregnancy is not associated with adverse maternal or infant outcomes. Moreover, there was no significant adjunct for the rate of stone passage.


Asunto(s)
Antagonistas de Receptores Adrenérgicos alfa 1/uso terapéutico , Complicaciones del Embarazo/tratamiento farmacológico , Tamsulosina/uso terapéutico , Cálculos Ureterales/tratamiento farmacológico , Antagonistas de Receptores Adrenérgicos alfa 1/efectos adversos , Adulto , Femenino , Humanos , Embarazo , Estudios Retrospectivos , Tamsulosina/efectos adversos , Resultado del Tratamiento
8.
J Urol ; 199(1): 66-73, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-28818526

RESUMEN

PURPOSE: We tested the effects of tumor size, distribution and grade on progression-free survival in patients with upper tract urothelial carcinoma treated with flexible ureteroscopy with Ho:YAG laser photoablation. MATERIALS AND METHODS: Included in analysis were data on 92 consecutive patients with upper tract urothelial carcinoma treated with Ho:YAG laser photoablation from 2003 to 2015 at a single tertiary care referral center. Stringent followup was offered according to EAU (European Association of Urology) guidelines. Progression during followup was defined by tumor upgrading, distant metastases and/or a relapsing tumor that could not be completely removed with a conservative approach. Kaplan-Meier curves were used to assess the rate of disease progression according to tumor size (1 or less cm vs greater than 1 cm), tumor distribution (unifocal vs multifocal) and tumor grade (low vs high). Cox regression analysis was done to test the impact of clinical and pathological characteristics on the rate of progression-free survival. RESULTS: At a median followup of 52 months (IQR 27.8-76.4) the progression-free survival rate was 68% vs 72% in patients with a tumor size of 1 or less vs greater than 1 cm (p = 0.9), 72% vs 69% in patients with unifocal vs multifocal lesions (p = 0.6) and 75% vs 52% in patients with a low vs a high grade tumor (p = 0.03). On multivariable Cox regression analysis tumor grade at first treatment was the only independent predictor of disease progression (HR 5.16, 95% CI 1.19-22.26, p = 0.03). CONCLUSIONS: High tumor grade independently decreased progression-free survival in patients with upper tract urothelial carcinoma treated with Ho:YAG laser photoablation. Tumor size greater than 1 cm and multifocality did not increase the risk of disease progression in patients treated conservatively with Ho:YAG laser photoablation.


Asunto(s)
Terapia por Láser/métodos , Ureteroscopía/métodos , Neoplasias Urológicas/terapia , Adulto , Anciano , Anciano de 80 o más Años , Terapia Combinada , Femenino , Humanos , Láseres de Estado Sólido , Masculino , Persona de Mediana Edad , Clasificación del Tumor , Supervivencia sin Progresión , Resultado del Tratamiento , Neoplasias Urológicas/patología
9.
J Urol ; 197(3 Pt 2): 963-967, 2017 03.
Artículo en Inglés | MEDLINE | ID: mdl-27575606

RESUMEN

PURPOSE: Polyacrylamide hydrogel has been shown to offer good short-term success for the endoscopic treatment of vesicoureteral reflux. Our objective was to provide long-term results of its efficacy and safety. MATERIALS AND METHODS: We performed a prospective study using polyacrylamide hydrogel to treat all grades of vesicoureteral reflux. Every patient underwent endoscopic injection of polyacrylamide hydrogel followed by 3-month postoperative renal ultrasound and voiding cystourethrogram. Renal ultrasound was repeated at 12 and 36 months. Treatment success was defined as the absence of de novo or worsening hydronephrosis and the absence of reflux. Safety elements included new or worsening hydronephrosis, calcifications of the injected material and urinary tract infections. RESULTS: A total of 76 patients (123 refluxing renal units) were assessed. Median age at surgery was 45 months and median followup was 36 months. Median injected volume of hydrogel per refluxing renal unit was 1.0 ml. The overall success rate 3 months after a single injection was 71%. During long-term followup 68 of 70 eligible patients underwent 12-month ultrasound and 40 of 46 underwent 36-month ultrasound. No upper tract deterioration or bulking agent calcifications were reported. Nine (12%) and 2 patients (3%) presented with nonfebrile and febrile urinary tract infections, respectively. CONCLUSIONS: The success rate of polyacrylamide hydrogel for endoscopic treatment of vesicoureteral reflux is comparable to published results of dextranomer hyaluronic acid. The long-term safety data and potential lower cost of polyacrylamide hydrogel provide further support for the use of this nonparticulate bulking agent to treat reflux.


Asunto(s)
Resinas Acrílicas/administración & dosificación , Reflujo Vesicoureteral/terapia , Resinas Acrílicas/efectos adversos , Preescolar , Cistoscopía , Femenino , Humanos , Inyecciones , Masculino , Estudios Prospectivos , Factores de Tiempo , Resultado del Tratamiento , Ureteroscopía
10.
World J Urol ; 35(9): 1353-1359, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28744695

RESUMEN

INTRODUCTION: Ureteroscopy is now the most frequent treatment used around the world for stone disease. Technological advancement, efficiency, safety, and minimally invasiveness of this procedure are some of the reasons for this change of trend. MATERIALS AND METHODS: In this review of the literature, a search of the PubMed database was conducted to identify articles related to ureteroscopy and accessories. The committee assigned by the International Consultation on Urological Disease reviewed all the data and produced a consensus statement relating to the ureteroscopy and all the particularities around this procedure. CONCLUSION: This manuscript provides literatures and recommendations for endourologists to keep them informed in regard to the preoperative, intraoperative, and postoperative consideration in regard of a ureteroscopy.


Asunto(s)
Stents , Cálculos Ureterales/cirugía , Ureteroscopios , Ureteroscopía/métodos , Diseño de Equipo , Humanos , Guías de Práctica Clínica como Asunto
11.
World J Urol ; 34(9): 1201-6, 2016 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26699629

RESUMEN

OBJECTIVES: To evaluate the cancer detection rate (CDR) of an early repeated flexible ureteroscopy (2nd-look-URS) and its impact on the conservative management of patients affected with upper urinary tract urothelial carcinoma (UTUC). MATERIALS AND METHODS: Clinical and surgical data from 41 patients with UTUC who underwent 2nd-look-URS within 60 days of their first URS with concomitant laser tumour photoablation at a single tertiary care referral centre from 2009 to 2013 were retrospectively analyzed. Radical nephroureterectomy was offered during follow-up in case of massive tumour recurrence (defined as a tumour not completely removable only with a conservative approach). Descriptive statistics tested the impact of 2nd-look-URS outcomes on subsequent endoscopic evaluation. Kaplan-Meier curves assessed massive tumour recurrence-free survival (mRFS) rates according to the presence of a tumour at 2nd-look-URS. Cox regression analyses identified predictors of mRFS. RESULTS: CDR at 2nd-look-URS was 51.2 %. CDRs at third URS were 81.3 and 41.2 % in patients with a positive and a negative 2nd-look-URS, respectively (p = 0.02). At a mean (median) follow-up of 34.6 (27.6) months, mRFS rates were 88 and 48 % in patients with negative and positive 2nd-look-URS, respectively (log rank = 0.015). Tumour grade at first URS and 2nd-look-URS outcomes achieved predictor status for mRFS (HR 6.1, 95 % CI 1.42-26.27 and HR 5.39, 95 % CI 1.18-24.66, respectively, all p ≤ 0.03). CONCLUSIONS: 2nd-look-URS-related CDR in conservatively treated UTUC patients was 51.2 %. 2nd-look-URS outcomes affected the findings of both subsequent endoscopic evaluation and mRFS. Further studies are needed to confirm the benefits of this approach in terms of patient outcomes.


Asunto(s)
Carcinoma de Células Transicionales/diagnóstico , Carcinoma de Células Transicionales/cirugía , Neoplasias Primarias Múltiples/diagnóstico , Neoplasias Primarias Múltiples/cirugía , Neoplasias Ureterales/cirugía , Ureteroscopía , Neoplasias de la Vejiga Urinaria/diagnóstico , Neoplasias de la Vejiga Urinaria/cirugía , Anciano , Anciano de 80 o más Años , Humanos , Persona de Mediana Edad , Reoperación , Estudios Retrospectivos , Factores de Tiempo
13.
World J Urol ; 33(2): 157-69, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25465911

RESUMEN

INTRODUCTION: Stone analysis is an important part in the evaluation of patients having stone disease. This could orientate the physician toward particular etiologies. MATERIAL AND METHODS: Chemical and physical methods are both used for analysis. Unfortunately, chemical methods often are inadequate to analyze accurately urinary calculi and could fail to detect some elements into the stone. Physical methods, in counterpart, are becoming more and more used in high-volume laboratories. The present manuscript will provide a review on analytic methods, and review all the information that should be included into an appropriate morpho-constitutional analysis. CONCLUSION: This report can supply an excellent summarization of the stone morphology and give the opportunity to find specific metabolic disorders and different lithogenic process into the same stone. Here, specific chemical types with their different crystalline phases are shown in connection with their different etiologies involved.


Asunto(s)
Cálculos Urinarios/química , Cálculos Urinarios/patología , Urolitiasis/diagnóstico , Oxalato de Calcio/análisis , Fosfatos de Calcio/análisis , Humanos , Espectroscopía Infrarroja por Transformada de Fourier , Cálculos Urinarios/etiología , Urolitiasis/etiología , Difracción de Rayos X
14.
World J Urol ; 33(2): 171-8, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25414063

RESUMEN

INTRODUCTION: Urolithiasis is a complex medical entity and regroups several different types of stones, each caused by a multitude of dietary imbalances or metabolic anomalies. In order to better assess the stone-forming patient, urologists should be competent in performing a thorough metabolic work-up. MATERIALS AND METHODS: We reviewed the litterature in order to provide an appropriate overview of the various components of the metabolic evaluation, including stone analysis, biochemistry tests, and urine collection. CONCLUSION: Performing a metabolic evaluation allows precise intervention in order to treat and mainly prevent stone disease.


Asunto(s)
Urolitiasis/etiología , Urolitiasis/metabolismo , Registros de Dieta , Humanos , Factores de Riesgo , Cálculos Urinarios/química , Cálculos Urinarios/etiología , Cálculos Urinarios/metabolismo
15.
Curr Opin Urol ; 25(2): 143-52, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25611686

RESUMEN

PURPOSE OF REVIEW: Nowadays, accessibility to the operative room is becoming more limited for medical students and residents, principally due to decreasing operative time, increasing waiting list, ethical consideration and legal issue in case of any complications. Simulation models have gained in popularity and are now considered a major component in the training and skill development of medical students and residents before coming to the operative room. In this review, we summarized and discussed the relevant aspect of ureteroscopy training models and gave an overview of the advantage in skill acquisition while training with a high-fidelity model. RECENT FINDINGS: Currently, there is an increase in surgical programs trying to implement endourology training models into the curriculum. The training simulators that would allow the medical students and residents to rapidly reach an autonomous level are yet to be developed. Several ureteroscopy models have been described and validated; however, the transposition of skill acquisition into real-life surgery is not properly demonstrated. SUMMARY: Training reduces the learning curve for novice medical students or residents. However, further studies are still needed to better define the impact of skill acquisition in real life and its sustainability.


Asunto(s)
Competencia Clínica , Endoscopía/educación , Modelos Anatómicos , Urología/educación , Curriculum , Cistoscopía/educación , Humanos , Ureteroscopía/educación , Procedimientos Quirúrgicos Urológicos/educación
16.
Can Urol Assoc J ; 2024 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-39037512

RESUMEN

INTRODUCTION: Breakages and repairs related to flexible digital reusable ureteroscopes (flURS) are expensive. Thus, we aimed to assess the cost-effectiveness of single-use flexible digital ureteroscopes (SUDFU). METHODS: We conducted a literature review on MEDLINE and EMBASE until September 19, 2018. Systematic reviews and guidelines were assessed for methodologic quality by using standardized grids (R-AMSTAR and AGREE-II). Original studies were analyzed according to local customized grids. The CAPS (Critical Appraisal Skills Program) tool enabled the assessment of the economic aspects in the literature. We also collected local data over a year in 2017-2018 and conducted an economic evaluation by cost minimization, comparing SUDFU and flURS in our center. By generating different flURS breakage reduction scenarios, we aimed to demonstrate the budgetary impact that would have SUFDU introduction in our center. RESULTS: Five economic studies were included. Data on flURS showed breakage rates between 6.4% and 13.2%, and mean numbers of interventions before breakage between 7.5 and 14.4. Four of the five economic analyses suggested a higher cost per intervention with SUDFU. Our local data demonstrated similar results (6.4% and 11.8 cases) and enabled us to estimate the annual number of ureteroscopies for which SUDFU would become profitable: 11-26 (depending on the chosen device). Furthermore, we illustrated how selective use of SUFDU can reduce annual costs by avoiding breakages in different scenarios. CONCLUSIONS: The mean cost per intervention with SUDFU is usually higher than with flURS in high-volume centers and exclusive use becomes unprofitable from a small number of cases.

17.
J Urol ; 190(3): 1034-7, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23538241

RESUMEN

PURPOSE: Vesicoureteral reflux is frequently diagnosed in the pediatric population. Endoscopic treatment has become a popular form of first-line therapy. Available products offer good short-term success rates. However, the cost of these injected implants is an issue. We evaluated the success of endoscopic treatment for vesicoureteral reflux using polyacrylamide hydrogel. MATERIALS AND METHODS: We performed a single center, single surgeon, prospective, off-label study using polyacrylamide hydrogel to treat vesicoureteral reflux. All patients underwent endoscopic subureteral double hydrodistention implantation technique injection followed by renal ultrasound and voiding cystourethrogram at 3 months postoperatively to confirm the absence of de novo hydronephrosis and correction of vesicoureteral reflux (grade 0). RESULTS: A total of 40 patients (69 refluxing ureters) underwent polyacrylamide hydrogel injection. Median age at surgery was 50 months. Bilateral reflux was identified in 29 patients (73%). Nine patients had duplex systems, 2 with reflux into both moieties. Reflux was graded using the International Reflux Study in Children grading system, with grade I seen in 9 ureters, II in 17, III in 20, IV in 18 and V in 5. Mean volume injected was 1.1 ml. Success rate for grade I to III vesicoureteral reflux at 3 months after a single treatment was 87%, and the overall success for all grades was 81.2%. CONCLUSIONS: Off-label use of polyacrylamide hydrogel injection therapy for primarily low grade vesicoureteral reflux demonstrates that the technique and short-term success rates are comparable to the most popular bulking agent, dextranomer/hyaluronic acid. These results suggest that further trials comparing polyacrylamide hydrogel and dextranomer/hyaluronic acid would be worthwhile.


Asunto(s)
Resinas Acrílicas/uso terapéutico , Cistoscopía/métodos , Reflujo Vesicoureteral/tratamiento farmacológico , Administración Intravesical , Adolescente , Adulto , Niño , Preescolar , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Humanos , Hidrogeles/uso terapéutico , Lactante , Masculino , Uso Fuera de lo Indicado , Estudios Prospectivos , Medición de Riesgo , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Urodinámica/fisiología , Urografía/métodos , Reflujo Vesicoureteral/diagnóstico , Adulto Joven
18.
Diagnostics (Basel) ; 13(1)2022 Dec 28.
Artículo en Inglés | MEDLINE | ID: mdl-36611372

RESUMEN

OBJECTIVE: The purposes of this multi-center study were to evaluate the rate of infection stones and to evaluate the urine cultures of patients with infection stones. MATERIALS: Charts of adulpatients with urinary stones were reviewed and data on stone analyses and urine cultures were collected. RESULTS: In total, 1204 renal stone formers (RSFs) from 10 countries were included (776 males, 428 females). Fifty-six patients (4.6%) had struvite stones. The highest frequency of struvite stones was observed in India (23%) and Pakistan (18%). Lower rates were reported in Canada (2%), China (3%), Argentina (3%), Iraq (3%), Italy (3.5%) and Poland (3%), and intermediate rates in Egypt (5.5%) and Bulgaria (5.4%). Urine cultures were retrieved from 508 patients. Patients with struvite stones had a positive culture in 64.3% of the samples and patients with other stones, in 26.7%. In struvite stones, the most common isolates were Escherichia coli (27.7%) and Proteus spp. (27.7%), followed by Klebsiella spp. (16.7%); in other types of stone, it was Escherichia coli (47.6%), followed by Gram-positive bacteria (14.0%) Conclusions: The struvite stone composition was associated with a urinary infection, although an infection was not demonstrable with a conventional midstream urine culture in about 30%.

19.
Can Urol Assoc J ; 16(10): 334-339, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-35621285

RESUMEN

INTRODUCTION: During the first regional COVID-19 lockdown in March 2020, we conducted a study aimed at evaluating completeness of telemedicine consultation in urology. Of 1679 consultations, 67% were considered completely managed by phone. The aim of the present study was to assess patients' experience and satisfaction with telemedicine and to compare them with urologists' perceptions about quality and completeness of the telemedicine consultation. METHODS: We contacted a randomly selected sample of patients (n=356) from our previous study to enquire about their experience. We used a home patient experience questionnaire, inspired by the Patient Experiences Questionnaire for Out-of-Hours Care (PEQOHC) and the Consumer Assessment Health Profile Survey (CAHPS). RESULTS: Of 356 patients contacted, 315 agreed to complete the questionnaire. Urological consultations were for non-oncological (104), oncological (121), cancer suspicion (41), and pediatric (49) indications. Mean patient satisfaction score after telemedicine consultation was 8.8/10 (median 9/10) and 86.3% of patients rated the quality of the consultation as either excellent (54.6%) or very good (31.7%). Consultations regarding cancer suspicion had the lowest score (8.3/10). Overall, 46.7% of all patients would have preferred an in-person visit outside of the pandemic situation. Among patients whose consultations were rated suboptimal by urologists, almost a third more (31.2%) would have preferred an in-person visit (p=0.03). CONCLUSIONS: Despite high reported patient satisfaction rates with telemedicine, it is noteworthy that nearly half of the patients would have preferred an in-person visit. Post-pandemic, it will be important to incorporate telemedicine as an alternative, while retaining and offering in-person visits.

20.
J Urol ; 185(3): 1088-92, 2011 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21255806

RESUMEN

PURPOSE: We compared the results of low transscrotal mid raphe orchiopexy, high scrotal incision (Bianchi) and conventional inguinal approach in patients with palpable undescended testes. MATERIALS AND METHODS: Orchiopexies performed between January 2003 and September 2009 with a minimum 3-month followup were included. Low scrotal incision (group 1) and high scrotal incision (group 2) were compared to the traditional inguinal 2-incision technique (group 3). We retrospectively reviewed operative time, success as defined by mid or lower scrotal position of the testis, and complications at 12 weeks and 1 year postoperatively. RESULTS: A total of 286 orchiopexies were performed in 214 patients with palpable undescended testes. Group 1 included 81 patients with 125 undescended testes. Group 2 consisted of 44 patients with 60 undescended testes. Group 3 included 89 patients with 101 undescended testes. Postoperatively the testes were located in a good position within the scrotum in 99% of patients in group 1, 98% in group 2 and 100% in group 3. Mean±SD operative time for unilateral undescended testes was significantly shorter for low transscrotal compared to inguinal orchiopexy (28±10 vs 37±12 minutes, p<0.0001) but equivalent to a high scrotal incision (27±10 minutes, p=0.59). For all 160 children followed for 1 year no long-term atrophy or secondary reascent was observed. CONCLUSIONS: Low transscrotal mid raphe orchiopexy appears to be an excellent alternative to high scrotal incision or standard inguinal orchiopexy for low palpable undescended testes, especially bilateral cases.


Asunto(s)
Criptorquidismo/cirugía , Escroto/cirugía , Preescolar , Humanos , Masculino , Estudios Retrospectivos , Procedimientos Quirúrgicos Urológicos Masculinos/métodos
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