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1.
BJU Int ; 133(1): 14-24, 2024 01.
Artículo en Inglés | MEDLINE | ID: mdl-37838621

RESUMEN

OBJECTIVE: To compare clinical outcomes of single-use endoscopes with those of reusable endoscopes to better define their role within urology. METHODS: A systematic search of electronic databases was performed. All studies comparing the clinical outcomes of participants undergoing urological procedures with single-use endoscopes to those of participants treated with reusable endoscopes were included. Results are reported in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 statement. RESULTS: Twenty-one studies in 3943 participants were identified. Six different single-use flexible ureteroscopes and two different single-use flexible cystoscopes were assessed. There were no differences in mean postoperative infection rates (4.0% vs 4.4%; P = 0.87) or overall complication rates (11.5% vs 11.9%; P = 0.88) between single-use and reusable endoscopes. For patients undergoing flexible ureteroscopy there were no differences in operating time (mean difference -0.05 min; P = 0.96), length of hospital stay (LOS; mean difference 0.06 days; P = 0.18) or stone-free rate (SFR; 74% vs 74.3%; P = 0.54) between the single-use and reusable flexible ureteroscope groups. CONCLUSION: This study is the largest to compare the clinical outcomes of single-use endoscopes to those of reusable endoscopes within urology, and demonstrated no difference in LOS, complication rate or SFR, with a shorter operating time associated with single-use flexible cystoscope use. It also highlights that the cost efficiency and environmental impact of single-use endoscopes is largely dependent on the caseload and reprocessing facilities available within a given institution. Urologists can therefore feel confident that whether they choose to 'use' or to 'reuse' based on the financial and environmental implications, they can do so without negatively impacting patient outcomes.


Asunto(s)
Ureteroscopía , Urología , Humanos , Ureteroscopía/métodos , Equipo Reutilizado , Diseño de Equipo , Ureteroscopios
2.
BJU Int ; 133(6): 699-708, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38409928

RESUMEN

OBJECTIVE: To explore the causes of the decrease in bladder cancer survival that has occurred over the past four decades. METHODS: We extracted data from the South Australian Cancer Registry. Data from the period 1 January 1977 to 31 December 2020 were extracted to explore changes in incidence and survival among a total of 8356 patients diagnosed with ≥pT1 disease. Invasive bladder cancer was defined as ≥pT1 in this study. RESULTS: Invasive bladder cancer age-standardized incidence decreased from 7.20 cases per 100 000 people in 1977 to 5.85 cases per 100 000 in 2020. The mean age at diagnosis increased from 68 years to 76 years. The crude incidence for patients aged 80 years and over increased by 3.3% per year (95% confidence interval [CI] 2.1 to 4.6). Overall survival decreased over the study period (hazard ratio [HR] 1.22 [95% CI 1.09 to 1.35]), however, survival increased after adjusting for age at diagnosis (HR 0.80 [95% CI 0.76 to 0.94]). Despite a decrease in non-bladder cancer-specific deaths in older people, there was no change in the bladder cancer-specific death rate in older people (HR 0.94 [95% CI 0.70 to 1.26]). Male sex was associated with higher survival (HR 0.87 [95% CI 0.83 to 0.92]), whereas socioeconomic advantage was not. CONCLUSIONS: Invasive bladder cancer survival has decreased over the past 40 years, with the age structure of the population being a significant contributing factor. PATIENT SUMMARY: We looked at why bladder cancer survival is decreasing using a large cancer registry with information from 1977 to 2020. We found that people are now more likely to be diagnosed at an older age. Older people often live for a shorter time with bladder cancer compared to younger people. Bladder cancer survival has decreased because there are more older people with the disease than previously.


Asunto(s)
Sistema de Registros , Neoplasias de la Vejiga Urinaria , Humanos , Neoplasias de la Vejiga Urinaria/mortalidad , Neoplasias de la Vejiga Urinaria/patología , Masculino , Femenino , Anciano , Anciano de 80 o más Años , Incidencia , Tasa de Supervivencia , Persona de Mediana Edad , Australia del Sur/epidemiología , Adulto
3.
Curr Opin Urol ; 32(5): 472-480, 2022 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-35869742

RESUMEN

PURPOSE OF REVIEW: Many clinical trials are currently underway to target the epigenome of castration-resistant prostate cancer. In this review, we summarize the major epigenetic alterations that occur during prostate cancer progression, describe their biological consequences, and highlight potential of therapies that target epigenetic regulators for use in patients. RECENT FINDINGS: Epigenetic alterations frequently occur in tumour suppressor genes, DNA repair genes, and genes that regulate cell proliferation and differentiation. Unlike genetic alterations, epigenetic changes are reversible, making them promising targets for cancer therapy. Epigenetic regulators can be divided into three broad groups: writers, readers, and erasers , each with specific drug targets that are being assessed in phase I and II clinical trials for prostate cancer. CBP/p300, and BRD4 are coregulators of the androgen receptor and inhibit androgen signalling, making bromodomain extra-terminal inhibitors and CBP/p300 inhibitors attractive targets in prostate cancer. Enhancer of zeste homolog 2, a histone methyltransferase, is also a potential target in castrate-resistant prostate cancer. An emerging direction is to combine epigenetic inhibitors with other compounds to enhance their efficacy. SUMMARY: Preclinical studies indicate that the epigenome is a potential target in prostate cancer, and clinical trials are testing multiple agents that target the epigenome in different ways. However, the process of translating these therapies into the clinic is ongoing and none have yet been approved for castrate-resistant prostate cancer.


Asunto(s)
Neoplasias de la Próstata Resistentes a la Castración , Neoplasias de la Próstata , Proteínas de Ciclo Celular/genética , Proteínas de Ciclo Celular/uso terapéutico , Proliferación Celular , Epigénesis Genética , Humanos , Masculino , Proteínas Nucleares/genética , Proteínas Nucleares/uso terapéutico , Neoplasias de la Próstata/tratamiento farmacológico , Neoplasias de la Próstata/genética , Neoplasias de la Próstata Resistentes a la Castración/tratamiento farmacológico , Neoplasias de la Próstata Resistentes a la Castración/genética , Neoplasias de la Próstata Resistentes a la Castración/patología , Factores de Transcripción/genética , Factores de Transcripción/uso terapéutico
4.
J Am Soc Nephrol ; 31(5): 1107-1117, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-32238473

RESUMEN

BACKGROUND: Clinically significant CKD following surgery for kidney cancer is associated with increased morbidity and mortality, but identifying patients at increased CKD risk remains difficult. Simple methods to stratify risk of clinically significant CKD after nephrectomy are needed. METHODS: To develop a tool for stratifying patients' risk of CKD arising after surgery for kidney cancer, we tested models in a population-based cohort of 699 patients with kidney cancer in Queensland, Australia (2012-2013). We validated these models in a population-based cohort of 423 patients from Victoria, Australia, and in patient cohorts from single centers in Queensland, Scotland, and England. Eligible patients had two functioning kidneys and a preoperative eGFR ≥60 ml/min per 1.73 m2. The main outcome was incident eGFR <45 ml/min per 1.73 m2 at 12 months postnephrectomy. We used prespecified predictors-age ≥65 years old, diabetes mellitus, preoperative eGFR, and nephrectomy type (partial/radical)-to fit logistic regression models and grouped patients according to degree of risk of clinically significant CKD (negligible, low, moderate, or high risk). RESULTS: Absolute risks of stage 3b or higher CKD were <2%, 3% to 14%, 21% to 26%, and 46% to 69% across the four strata of negligible, low, moderate, and high risk, respectively. The negative predictive value of the negligible risk category was 98.9% for clinically significant CKD. The c statistic for this score ranged from 0.84 to 0.88 across derivation and validation cohorts. CONCLUSIONS: Our simple scoring system can reproducibly stratify postnephrectomy CKD risk on the basis of readily available parameters. This clinical tool's quantitative assessment of CKD risk may be weighed against other considerations when planning management of kidney tumors and help inform shared decision making between clinicians and patients.


Asunto(s)
Nefrectomía/efectos adversos , Complicaciones Posoperatorias/etiología , Insuficiencia Renal Crónica/etiología , Medición de Riesgo/métodos , Índice de Severidad de la Enfermedad , Anciano , Anciano de 80 o más Años , Medicina Basada en la Evidencia , Femenino , Tasa de Filtración Glomerular , Humanos , Neoplasias Renales/cirugía , Modelos Logísticos , Masculino , Persona de Mediana Edad , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
5.
World J Urol ; 37(6): 1007-1014, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30895359

RESUMEN

PURPOSE: Data assessing the effectiveness of intracavernosal injections (ICIs) for the treatment of erectile dysfunction (ED) are limited. This study evaluates intracavernosal injectable therapies for ED and reviews available guidelines that inform clinical practice. METHODS: A systematic search using electronic databases (Medline, Pubmed) was performed for studies investigating injectable management strategies for ED published after 1990. Primary outcome measures were to comparatively evaluate clinical efficacy, continuation rates and adverse event profiles of each injectable agent as monotherapy or in combination. The secondary outcome measurement was to discuss available guidelines that inform clinical practice for injectable agents. RESULTS: ICIs demonstrate clinical efficacy in 54-100% of patients, early discontinuation rates of ≤ 38% and adverse events in ≤ 26%. Discontinuation rates are typically greatest within 3-6 months of commencement. Anxiety related to the initial injection occurs in approximately 65% and anxiety levels can remain high for 4 months. Approval of intracavernosal injection agents is mainly limited to alprostadil with the recent addition of aviptadil/phentolamine combination therapy in a select few geographical regions. Although combination therapies are attractive alternative options, their formulations are variable and should be standardised before widespread acceptance is achieved. CONCLUSIONS: ICIs are associated with good clinical efficacy rates, high discontinuation rates and a moderate side-effect profile. They represent an important tool in the urological armamentarium for treating ED in patients that cannot tolerate or are refractory to oral therapies.


Asunto(s)
Alprostadil/administración & dosificación , Disfunción Eréctil/tratamiento farmacológico , Fentolamina/administración & dosificación , Péptido Intestinal Vasoactivo/administración & dosificación , Vasodilatadores/administración & dosificación , Combinación de Medicamentos , Humanos , Inyecciones Intralesiones , Masculino , Pene
6.
J Urol ; 200(6): 1215-1220, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-29906434

RESUMEN

PURPOSE: We performed a cost-effectiveness analysis using the PHI (Prostate Health Index), 4Kscore®, SelectMDx™ and the EPI (ExoDx™ Prostate [IntelliScore]) in men with elevated prostate specific antigen to determine the need for biopsy. MATERIALS AND METHODS: We developed a decision analytical model in men with elevated prostate specific antigen (3 ng/ml or greater) in which 1 biomarker test was used to determine which hypothetical individuals required biopsy. In the current standard of care strategy all individuals underwent biopsy. Model parameters were derived from a comprehensive review of the literature. Costs were calculated from a health sector perspective and converted into 2017 United States dollars. RESULTS: The cost and QALYs (quality adjusted life-years) of the current standard of care, which was transrectal ultrasound guided biopsy, was $3,863 and 18.085, respectively. Applying any of the 3 biomarkers improved quality adjusted survival compared to the current standard of care. The cost of SelectMDx, the PHI and the EPI was lower than performing prostate biopsy in all patients. However, the PHI was more costly and less effective than the SelectMDx strategy. The EPI provided the highest QALY with an incremental cost-effectiveness ratio of $58,404 per QALY. The use of biomarkers could reduce the number of unnecessary biopsies by 24% to 34% compared to the current standard of care. CONCLUSIONS: Applying biomarkers in men with elevated prostate specific antigen to determine the need for biopsy improved quality adjusted survival by decreasing the number of biopsies performed and the treatment of indolent disease. Using SelectMDx or the EPI following elevated prostate specific antigen but before proceeding to biopsy is a cost-effective strategy in this setting.


Asunto(s)
Biomarcadores de Tumor/economía , Análisis Costo-Beneficio , Técnicas de Apoyo para la Decisión , Modelos Económicos , Neoplasias de la Próstata/diagnóstico , Biomarcadores de Tumor/análisis , Toma de Decisiones Clínicas , Costos de la Atención en Salud , Humanos , Biopsia Guiada por Imagen/economía , Biopsia Guiada por Imagen/métodos , Masculino , Persona de Mediana Edad , Próstata/patología , Neoplasias de la Próstata/economía , Neoplasias de la Próstata/patología , Años de Vida Ajustados por Calidad de Vida , Ultrasonografía Intervencional/economía , Ultrasonografía Intervencional/métodos
7.
BJU Int ; 121 Suppl 3: 28-32, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29360286

RESUMEN

OBJECTIVE: To quantify the burden of the side effects of radiotherapy on a tertiary referral urology department. PATIENTS AND METHODS: A prospective study of all urology admissions to a public urology department at a tertiary hospital in a 6-month period was performed. Patients admitted with complications attributable to radiotherapy were included in the study. Data obtained included patient demographics, radiotherapy details, complication type and management required. RESULTS: A total of 1198 patients were admitted; 921 (77%) were elective and 277 (23%) were emergency admissions. Thirteen out of the 921 (1.4%) elective admissions and 20 out of the 277 (7.2%) emergency admissions were attributable to radiotherapy complications. Radiotherapy complications was the fourth most common reason for emergency admission, ahead of acute urinary retention. These 33 admissions were accounted for by 21 patients. A total of 39 separate complications attributable to radiotherapy were diagnosed, with some patients having multiple complications. The median (interquartile range) time to onset of complications was 4 (1-9) years. The surgical intervention rate was 67%. The commonest procedures were washout with/without clot evacuation or diathermy in theatre (15.8%) and urethral dilatation/bladder neck incision (15.8%). Two urinary diversions and two cystoprostatectomies plus urinary diversion were performed. CONCLUSION: Radiotherapy complications are consequential and account for a substantial proportion of a tertiary urology department's emergency workload. These complications generally occur years after radiotherapy and frequently require surgical intervention.


Asunto(s)
Servicio de Urgencia en Hospital/estadística & datos numéricos , Traumatismos por Radiación/epidemiología , Traumatismos por Radiación/cirugía , Radioterapia/efectos adversos , Neoplasias Urológicas/radioterapia , Anciano , Anciano de 80 o más Años , Braquiterapia/efectos adversos , Estudios de Cohortes , Relación Dosis-Respuesta en la Radiación , Tratamiento de Urgencia/estadística & datos numéricos , Femenino , Humanos , Incidencia , Masculino , Admisión del Paciente/estadística & datos numéricos , Pronóstico , Traumatismos por Radiación/diagnóstico , Estudios Retrospectivos , Medición de Riesgo , Tasa de Supervivencia , Centros de Atención Terciaria , Estados Unidos , Neoplasias Urológicas/patología
8.
BJU Int ; 121 Suppl 3: 40-47, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-29072806

RESUMEN

OBJECTIVE: To describe our technique, illustrated with images and videos, of robot-assisted partial nephrectomy (RAPN) for challenging renal tumours. PATIENTS AND METHODS: A study of 249 patients who underwent RAPN in multiple institutions was performed. Patients were identified using prospective RAPN databases. Complex renal lesion were defined as those with a RENAL nephrometry score ≥10. Data were analysed and differences among groups examined. RESULTS: A total of 31 (12.4%) RAPNs were performed for complex renal tumours. The median (interquartile range [IQR]) patient age was 57 (50.5-70.5) years and 21 patients (67.7%) were men. The median (IQR) American Society of Anesthesiologists score was 2 (2-3). The median (IQR) operating time was 200 (50-265) min, warm ischaemia time was 23 (18.5-29) min, and estimated blood loss was 200 (50-265) mL. There were no intra-operative complications. Two patients (6.4%) had postoperative complications. One patient (3.2%) had a positive surgical margin. The median (IQR) length of stay was 3.5 (3-5) days and the median (IQR) follow-up was 12.5 (7-24) months. There were no recurrences. RAPN resulted in statistically significant changes in renal function 3 months after RAPN compared with preoperative renal function (P < 0.001). CONCLUSION: Our results showed that RAPN was a safe approach for selected patients with complex renal tumours and may facilitate tumour resection and renorrhaphy for challenging cases, offering a minimally invasive surgical option for patients who may otherwise require open surgery.


Asunto(s)
Neoplasias Renales/mortalidad , Neoplasias Renales/cirugía , Nefrectomía/métodos , Seguridad del Paciente/estadística & datos numéricos , Procedimientos Quirúrgicos Robotizados/métodos , Anciano , Estudios de Cohortes , Bases de Datos Factuales , Femenino , Estudios de Seguimiento , Humanos , Neoplasias Renales/patología , Masculino , Márgenes de Escisión , Persona de Mediana Edad , Monitoreo Intraoperatorio/métodos , Invasividad Neoplásica/patología , Estadificación de Neoplasias , Nefrectomía/efectos adversos , Tempo Operativo , Posicionamiento del Paciente/métodos , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/fisiopatología , Estudios Retrospectivos , Medición de Riesgo , Procedimientos Quirúrgicos Robotizados/efectos adversos , Tasa de Supervivencia , Factores de Tiempo , Resultado del Tratamiento , Ultrasonografía Doppler/métodos
9.
BJU Int ; 121(6): 971-978, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-28977728

RESUMEN

OBJECTIVE: To determine the relevance of intraductal carcinoma of the prostate (IDC-P) in advanced prostate cancer by first examining whether IDC-P was originally present in patients who later developed advanced prostate cancer and then using patient-derived xenografts (PDXs) to investigate the response of IDC-P to androgen deprivation therapy (ADT). MATERIALS AND METHODS: We conducted a retrospective pathology review of IDC-P in primary prostate biopsy or surgery specimens from 38 men who subsequently developed advanced prostate cancer. Overall survival was calculated using the Kaplan-Meier method. To demonstrate the response of IDC-P to ADT, we established PDXs from seven patients with familial and/or high-risk sporadic prostate cancer. After castration and testosterone restoration of host mice, we measured the volume and proliferation of IDC-P within PDX grafts. RESULTS: We found that IDC-P was a prominent feature in the primary prostate specimens, present in 63% of specimens and often co-existing with poorly differentiated adenocarcinoma. Overall survival was similar in patients with or without IDC-P. In the PDXs from all seven patients, IDC-P was identified and present at a similar volume to adenocarcinoma. Residual IDC-P lesions persisted after host castration and, similar to castrate-tolerant adenocarcinoma, testosterone restoration led to tumour regeneration. CONCLUSION: The study showed that IDC-P is prevalent in aggressive prostate cancer and contains cells that can withstand androgen deprivation. Thus, IDC-P appears functionally relevant in advanced prostate cancer. The presence of IDC-P may be a trigger to develop innovative clinical management plans.


Asunto(s)
Antagonistas de Andrógenos/uso terapéutico , Carcinoma Ductal/tratamiento farmacológico , Neoplasias de la Próstata Resistentes a la Castración/tratamiento farmacológico , Adenocarcinoma/patología , Anciano , Anciano de 80 o más Años , Animales , Carcinoma Ductal/patología , Xenoinjertos/patología , Humanos , Estimación de Kaplan-Meier , Masculino , Ratones Endogámicos NOD , Ratones SCID , Persona de Mediana Edad , Neoplasias de la Próstata Resistentes a la Castración/patología , Estudios Retrospectivos , Trasplante Heterólogo , Ensayos Antitumor por Modelo de Xenoinjerto/métodos
10.
World J Urol ; 36(4): 557-563, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29372352

RESUMEN

PURPOSE: Three-dimensional (3D) printing was invented in 1983 but has only just begun to influence medicine and surgery. Conversion of digital images into physical models demonstrates promise to revolutionize multiple domains of surgery. In the field of uro-oncology, researchers and clinicians have recognized the potential of this technology and are working towards making it an integral part of urological practice. We review current literature regarding 3D printing and other 3D technology in the field of urology. METHOD: A comprehensive assessment of contemporary literature was performed according to a modified PRISMA analysis for the purposes of this narrative review article. Medical databases that were searched included: Web of Science, EMBASE and Cochrane databases. Articles assessed were limited only to English-language peer-reviewed articles published between 1980 and 2017. The search terms used were "3D", "3-dimensional", "printing", "printing technology", "urology", "surgery". Acceptable articles were reviewed and incorporated for their merit and relevance with preference given for articles with high impact, original research and recent advances. RESULTS: Thirty-five publications were included in final analysis and discussion. CONCLUSIONS: The area of 3D printing in Urology shows promising results, but further research is required and cost reduction must occur before clinicians fully embrace its use. As costs continue to decline and diversity of materials continues to expand, research and clinical utilization will increase. Recent advances have demonstrated the potential of this technology in the realms of education and surgical optimization. The generation of personalized organs using 3D printing scaffolding remains the 'holy grail' of this technology.


Asunto(s)
Modelos Anatómicos , Impresión Tridimensional , Neoplasias Urológicas/cirugía , Procedimientos Quirúrgicos Urológicos , Humanos , Oncología Médica/educación , Oncología Médica/tendencias , Mejoramiento de la Calidad , Procedimientos Quirúrgicos Urológicos/métodos , Procedimientos Quirúrgicos Urológicos/normas
11.
J Surg Oncol ; 117(7): 1597-1610, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29790163

RESUMEN

BACKGROUND: New-onset chronic kidney disease (CKD) following surgical management of kidney tumors is common. This study evaluated risk factors for new-onset CKD after nephrectomy for T1a renal cell carcinoma (RCC) in an Australian population-based cohort. METHODS: There were 551 RCC patients from the Australian states of Queensland and Victoria included in this study. The primary outcome was new-onset CKD (eGFR <60 mL/min per 1.73 m2 ) and the secondary outcome was new-onset moderate-severe CKD (<45 mL/min per 1.73 m2 ). Multivariable logistic regression was used to evaluate associations between patient, tumor and health-service characteristics and these outcomes. RESULTS: Forty percent (219/551) of patients developed new-onset CKD, and 12% (68/551) experienced new-onset moderate-severe CKD. Risk factors for new-onset CKD were age, lower preoperative eGFR, tumor size >20 mm, radical nephrectomy, lower hospital caseloads (<20 cases/year), and rural place of residence. The associations between rural place of residence and low center volume were a consequence of higher radical nephrectomy rates. CONCLUSION: Risk factors for CKD after nephrectomy generally relate to worse baseline health, or likelihood of undergoing radical nephrectomy. Surgeons in rural centres and hospitals with low caseloads may benefit from formalized integration with specialist centers for continued professional development and case-conferencing, to assist in management decisions.


Asunto(s)
Carcinoma de Células Renales/cirugía , Neoplasias Renales/cirugía , Nefrectomía/efectos adversos , Complicaciones Posoperatorias , Insuficiencia Renal Crónica/diagnóstico , Anciano , Australia/epidemiología , Carcinoma de Células Renales/patología , Estudios de Cohortes , Femenino , Estudios de Seguimiento , Tasa de Filtración Glomerular , Humanos , Neoplasias Renales/patología , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Insuficiencia Renal Crónica/epidemiología , Insuficiencia Renal Crónica/etiología , Factores de Riesgo , Espera Vigilante
13.
BJU Int ; 119 Suppl 5: 39-46, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-28544299

RESUMEN

OBJECTIVE: To evaluate the minimally invasive percutaneous nephrolithotomy (MIP) system for renal calculi. PATIENTS AND METHODS: Consecutive patients undergoing mini-percutaneous nephrolithotomy (mPCNL) procedures with the MIP system were enrolled. Patient position, American Society of Anesthesiologists classification, puncture location, stone clearance, postoperative drainage and complications were recorded, and features unique to MIP were noted. RESULTS: In all, 30 patients underwent 32 mPCNL procedures. The mean stone size was 17 (10.75-21.25) mm and the mean number of stones was 1 (1-2). The median stone clearance rate was 96.5 (95-100)%. The complication rate was 9.3%. No patient required a transfusion. In addition to these outcomes, we noted that the MIP system has many advantages over conventional PCNL (cPCNL). It is easy to learn and can be performed in both supine and prone positions. It is safe for supracostal puncture, provides excellent access to nearly all calyces and upper ureter, has multiple stone treatment options, can be used as an adjunct to cPCNL, and can be performed as a tubeless procedure. CONCLUSION: Our experience with the MIP system has shown several advantages over cPCNL. mPCNL with the MIP system has several features that suggest it should be considered as an alternative or adjunct to cPCNL, ureteroscopy and extracorporeal shockwave lithotripsy.


Asunto(s)
Cálculos Renales/cirugía , Procedimientos Quirúrgicos Mínimamente Invasivos , Nefrostomía Percutánea , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Nefrostomía Percutánea/métodos , Complicaciones Posoperatorias , Estudios Retrospectivos , Resultado del Tratamiento
14.
World J Urol ; 35(6): 935-941, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-27785560

RESUMEN

PURPOSE: To evaluate the diagnostic and staging ability of multiparametric MRI (mpMRI) compared to radical prostatectomy (RP) specimens after dissemination of this technology to several centres. mpMRI is an evolving technique aiming to improve upon the diagnostic sensitivity of prostate biopsy for the diagnosis of prostate cancer. Differences in interpretation, expertise and application of mpMRI are responsible for the range of reported results. METHODS: This retrospective clinical study was conducted with consecutive patients through an electronic database of tertiary hospitals and adjacent private urology practices in Australia. Patients having undergone RP were assessed for the presence of a pre-operative mpMRI performed between 2013 and 2015 which was evaluated against the reference standard of the RP whole-mount specimen. MRI reports were evaluated using the Prostate Imaging Reporting and Data System (PI-RADS). RESULTS: In our cohort of 152 patients, the sensitivity and specificity of mpMRI (PI-RADS ≥ 4) for prostate cancer (Gleason ≥ 4 + 3) detection were 83 and 47%, respectively. For the identification of extraprostatic disease, the sensitivity and specificity were 29 and 94%, respectively. CONCLUSION: These results represent a 'real-world' approach to mpMRI and appear comparable to other single-centre studies. MRI staging information should be interpreted in context with other risk factors for extraprostatic disease. mpMRI has a useful role as an adjunct for prostate cancer diagnosis and directing management towards improving patient outcomes.


Asunto(s)
Imagen por Resonancia Magnética/métodos , Prostatectomía/métodos , Neoplasias de la Próstata/diagnóstico por imagen , Neoplasias de la Próstata/patología , Anciano , Australia , Biopsia con Aguja , Estudios de Cohortes , Bases de Datos Factuales , Supervivencia sin Enfermedad , Humanos , Inmunohistoquímica , Masculino , Persona de Mediana Edad , Clasificación del Tumor/métodos , Pronóstico , Neoplasias de la Próstata/mortalidad , Neoplasias de la Próstata/cirugía , Estudios Retrospectivos , Medición de Riesgo , Análisis de Supervivencia , Adhesión del Tejido , Resultado del Tratamiento
15.
Can J Urol ; 24(3): 8802-8813, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28646935

RESUMEN

INTRODUCTION: To report the five year results of a prospective, multi-center, randomized, blinded sham control trial of the Prostatic Urethral Lift (PUL) in men with bothersome lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH). MATERIALS AND METHODS: At 19 centers in North America and Australia, 206 subjects ≥ 50 years old with International Prostate Symptom Score (IPSS ) > 12, peak flow rate (Qmax) ≤ 12 mL/s, and prostate volume 30 cc-80 cc were randomized 2:1 to the PUL procedure or blinded sham control. In PUL permanent UroLift implants are placed to hold open the lateral lobes of the prostate to reduce urinary obstruction. After randomized comparison at 3 months and the only opportunity to add more PUL implants, PUL patients were followed to 5 years. LUTS severity (IPSS), quality of life (QOL), BPH Impact Index (BPHII), Qmax, sexual function, and adverse events were assessed throughout follow up. RESULTS: IPSS improvement after PUL was 88% greater than that of sham at 3 months. LUTS and QOL were significantly improved by 2 weeks with return to preoperative physical activity within 8.6 days. Improvement in IPSS, QOL, BPHII, and Qmax were durable through 5 years with improvements of 36%, 50%, 52%, and 44% respectively. No difference was seen between Intent to Treat and Per Protocol populations. Surgical retreatment was 13.6% over 5 years. Adverse events were mild to moderate and transient. Sexual function was stable over 5 years with no de novo, sustained erectile or ejaculatory dysfunction. CONCLUSIONS: PUL offers rapid improvement in symptoms, QOL and flow rate that is durable to 5 years. These improvements were achieved with minimal use of a postoperative urinary catheter, rapid return to normal, and preservation of both erectile and ejaculatory function. Symptom improvement was commensurate with patient satisfaction. PUL offers a minimally invasive option in the treatment of LUTS due to BPH.


Asunto(s)
Hiperplasia Prostática/complicaciones , Prostatismo/cirugía , Prótesis e Implantes , Método Doble Ciego , Eyaculación , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Procedimientos Quirúrgicos Mínimamente Invasivos , Erección Peniana , Estudios Prospectivos , Prostatismo/etiología , Prostatismo/fisiopatología , Calidad de Vida , Reoperación , Índice de Severidad de la Enfermedad , Sexualidad , Resultado del Tratamiento , Urodinámica
16.
Br J Cancer ; 115(6): 664-73, 2016 09 06.
Artículo en Inglés | MEDLINE | ID: mdl-27490804

RESUMEN

BACKGROUND: Global DNA methylation has been reported to be associated with urothelial cell carcinoma (UCC) by studies using blood samples collected at diagnosis. Using the Illumina HumanMethylation450 assay, we derived genome-wide measures of blood DNA methylation and assessed them for their prospective association with UCC risk. METHODS: We used 439 case-control pairs from the Melbourne Collaborative Cohort Study matched on age, sex, country of birth, DNA sample type, and collection period. Conditional logistic regression was used to compute odds ratios (OR) of UCC risk per s.d. of each genome-wide measure of DNA methylation and 95% confidence intervals (CIs), adjusted for potential confounders. We also investigated associations by disease subtype, sex, smoking, and time since blood collection. RESULTS: The risk of superficial UCC was decreased for individuals with higher levels of our genome-wide DNA methylation measure (OR=0.71, 95% CI: 0.54-0.94; P=0.02). This association was particularly strong for current smokers at sample collection (OR=0.47, 95% CI: 0.27-0.83). Intermediate levels of our genome-wide measure were associated with decreased risk of invasive UCC. Some variation was observed between UCC subtypes and the location and regulatory function of the CpGs included in the genome-wide measures of methylation. CONCLUSIONS: Higher levels of our genome-wide DNA methylation measure were associated with decreased risk of superficial UCC and intermediate levels were associated with reduced risk of invasive disease. These findings require replication by other prospective studies.


Asunto(s)
Carcinoma de Células Transicionales/genética , Metilación de ADN , ADN/sangre , Neoplasias Urológicas/genética , Adulto , Anciano , Recolección de Muestras de Sangre , Carcinoma de Células Transicionales/sangre , Carcinoma de Células Transicionales/epidemiología , Carcinoma de Células Transicionales/patología , Estudios de Casos y Controles , Islas de CpG , Dieta , Femenino , Estudios de Seguimiento , Estudio de Asociación del Genoma Completo , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Invasividad Neoplásica , Estudios Prospectivos , Riesgo , Factores de Riesgo , Fumar/epidemiología , Factores de Tiempo , Neoplasias Urológicas/sangre , Neoplasias Urológicas/epidemiología , Neoplasias Urológicas/patología , Victoria/epidemiología
17.
BJU Int ; 117(4): 555-62, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26617405

RESUMEN

The purpose of this article was to review and compare the international guidelines and surveillance protocols for post-nephrectomy renal cell carcinoma (RCC). PubMed database searches were conducted, according to the PRISMA statement for reporting systematic reviews, to identify current international surveillance guidelines and surveillance protocols for surgically treated and clinically localized RCC. A total of 17 articles were reviewed. These included three articles on urological guidelines, three on oncological guidelines and 11 on proposed strategies. Guidelines and strategies varied significantly in relation to follow-up, specifically with regard to the frequency and timing of radiological imaging. Although there is currently no consensus within the literature regarding surveillance protocols, various guidelines and strategies have been developed using both patient and tumour characteristics.


Asunto(s)
Carcinoma de Células Renales/cirugía , Neoplasias Renales/cirugía , Nefrectomía/métodos , Técnicas de Ablación/métodos , Carcinoma de Células Renales/diagnóstico , Carcinoma de Células Renales/mortalidad , Estudios de Seguimiento , Humanos , Neoplasias Renales/diagnóstico , Neoplasias Renales/mortalidad , Recurrencia Local de Neoplasia/diagnóstico , Recurrencia Local de Neoplasia/mortalidad , Nefrectomía/mortalidad , Guías de Práctica Clínica como Asunto , Pronóstico , Factores de Riesgo , Espera Vigilante
18.
BJU Int ; 118 Suppl 3: 14-22, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-27684483

RESUMEN

OBJECTIVE: To evaluate the 24-month effectiveness of the prostatic urethral lift (PUL) procedure in men with lower urinary tract symptoms (LUTS) secondary to benign prostatic hyperplasia (BPH) assessed through a crossover study. PATIENTS AND METHODS: In all, 53 patients underwent a sham procedure as part of the blinded, randomised L.I.F.T. (Luminal Improvement Following prostatic Tissue approximation for the treatment of LUTS secondary to BPH) study at 19 centres and elected to enrol in this crossover study. The crossover procedure involved placement of permanent implants (UroLift® system) into the prostatic lateral lobes. Patients were followed for 3 months after the sham procedure and then for 24 months after crossover to PUL, with assessments of urinary symptom relief, quality of life (QoL), urinary flow rate, sexual function, and adverse events. RESULTS: At 24 months after crossover to PUL, the International Prostate Symptom Score (IPSS), QoL, BPH Impact Index, and maximum urinary flow rate improved 36%, 40%, 54%, and 77% from baseline, respectively. Each IPSS parameter on average improved significantly from baseline (P < 0.005) and remained stable throughout follow-up. Symptom response after the sham procedure indicated initial improvement at 1 month with significant decay by 3 months. Adverse events were typically mild to moderate and patients returned rapidly to normal activity. Four patients (8%) required intervention with transurethral resection of the prostate and one patient required additional PUL implants within the 24-month period. There were no reported instances of de novo sustained erectile or ejaculatory dysfunction. CONCLUSIONS: The PUL procedure is associated with rapid symptom relief, increased urinary flow rate and QoL improvement that remain stable over 24 months. Morbidity is low and sexual function is preserved.


Asunto(s)
Síntomas del Sistema Urinario Inferior/cirugía , Hiperplasia Prostática/cirugía , Cabestrillo Suburetral , Adulto , Australia , Canadá , Estudios Cruzados , Cistoscopía/métodos , Método Doble Ciego , Humanos , Síntomas del Sistema Urinario Inferior/fisiopatología , Masculino , Persona de Mediana Edad , Hiperplasia Prostática/complicaciones , Hiperplasia Prostática/fisiopatología , Calidad de Vida , Factores de Tiempo , Resultado del Tratamiento , Estados Unidos
19.
Int Urogynecol J ; 27(1): 69-76, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26353845

RESUMEN

INTRODUCTION AND HYPOTHESIS: The quality of Internet information on female urinary incontinence is considered variable. No comprehensive analysis exists to support this. We compared the quality of current Internet information for common layperson terminology on female urinary incontinence across four Western languages and a comparative analysis of website sponsors. METHODS: World Health Organization Health on the Net (HON) principles may be applied to websites using an automated toolbar function. We used the Google search engine; 10,200 websites were identified using keywords related to female urinary incontinence and treatments in English, French, German and Spanish. The first 150 websites in each language had HON principles examined, whilst a further analysis of site sponsorship was undertaken. RESULTS: The total number of websites for each term is variable. "Female sling surgery" had the most websites with approximately 18 million, whereas "colposuspension" had the least with only 159,890 websites. Regardless of language, very few female urinary incontinence websites were HON accredited (p < 0.0001). Linguistically, French (18%) and English (16%) had the greatest percentage of HON-accredited sites. Tertiles (thirds) of the first 150 websites returned the higher percentage of HON-accredited websites (p < 0.0001). Websites were largely sponsored by physicians/surgeons. CONCLUSIONS: The lack of validation of most female urinary incontinence websites should be appreciated by clinicians. Additionally, discrepancies exist in the quality and number of websites across conditions, languages and also between medical and alternative terms. Clinicians should participate in and encourage the development of informative, ethical and reliable health websites on the Internet and direct patients to them.


Asunto(s)
Información de Salud al Consumidor/normas , Internet , Lenguaje , Educación del Paciente como Asunto , Incontinencia Urinaria , Información de Salud al Consumidor/estadística & datos numéricos , Femenino , Humanos , Educación del Paciente como Asunto/estadística & datos numéricos
20.
BJU Int ; 116 Suppl 3: 66-72, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26176738

RESUMEN

PURPOSE: To identify the ability of multiple variables to predict prostate cancer specific mortality (PCSM) in a whole of population series of all radical prostatectomies (RP) performed in Victoria, Australia. MATERIALS & METHODS: A total of 2154 open RPs were performed in Victoria between July 1995 and December 2000. Subjects without follow up data, Gleason grade, pathological stage were excluded as were those who had pT4 disease or received neoadjuvant treatment. 1967 cases (91.3% of total) met the inclusion criteria for this study. Tumour characteristics were collated via a central registry. We used competing hazards regression models to investigate associations. RESULTS: At median follow up of 10.3 years pT stage of RP (P < 0.001) and high Gleason score of the RP specimen (P < 0.001 for ≥8 [Subhazard ratio (SHR) 11.19] and 4 + 3 = 7 [SHR 7.10]) compared with Gleason score 6 disease were strong predictors of progression to PCSM. Gleason score 3 + 4 = 7 was not at this time a significant predictor of PCSM (P = 0.08, SHR 1.84). Predictors of PCSM, independent of stage and grade, included rural residency (P = 0.003), primary surgeon contributing less than 40 cases (low-volume) to the VRPR (P = 0.025) and the involvement of a trainee surgeon in the operation (P = 0.031). CONCLUSION: The significant prediction of PCSM by pT cancer stage, Gleason score and primary Gleason pattern at RP in this whole of population study suggests a need to avoid understaging/grading in the process of cancer diagnosis and active surveillance protocols. Multi-modality therapy is likely to have a greater impact on PCSM in higher stage and Gleason grade disease. Identification of increased PCSM with rural residency and with involvement of a trainee urologist, and reduction in PCSM with higher surgeon volume all suggest potential for improved PC outcomes to be achieved with changes to surgical training and service delivery.


Asunto(s)
Adenocarcinoma/mortalidad , Adenocarcinoma/cirugía , Prostatectomía/mortalidad , Neoplasias de la Próstata/mortalidad , Neoplasias de la Próstata/cirugía , Adenocarcinoma/patología , Anciano , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Neoplasias de la Próstata/patología , Sistema de Registros , Medición de Riesgo , Tasa de Supervivencia , Victoria
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