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BACKGROUND: Low-value prostate-specific antigen (PSA) testing is common yet contributes substantial waste and downstream patient harm. Decision fatigue may represent an actionable target to reduce low-value urologic care. The objective of this study was to determine whether low-value PSA testing patterns by outpatient clinicians are consistent with decision fatigue. METHODS: Outpatient appointments for adult men without prostate cancer were identified at a large academic health system from 2011 through 2018. The authors assessed the association of appointment time with the likelihood of PSA testing, stratified by patient age and appropriateness of testing based on clinical guidelines. Appointments included those scheduled between 8:00 am and 4:59 pm, with noon omitted. Urologists were examined separately from other clinicians. RESULTS: In 1,581,826 outpatient appointments identified, the median patient age was 54 years (interquartile range, 37-66 years), 1,256,152 participants (79.4%) were White, and 133,693 (8.5%) had family history of prostate cancer. PSA testing would have been appropriate in 36.8% of appointments. Clinicians ordered testing in 3.6% of appropriate appointments and in 1.8% of low-value appointments. Appropriate testing was most likely at 8:00 am (reference group). PSA testing declined through 11:00 am (odds ratio [OR], 0.57; 95% CI, 0.50-0.64) and remained depressed through 4:00 pm (P < .001). Low-value testing was overall less likely (P < .001) and followed a similar trend, declining steadily from 8:00 am (OR, 0.48; 95% CI, 0.42-0.56) through 4:00 pm (P < .001; OR, 0.23; 95% CI, 0.18-0.30). Testing patterns in urologists were noticeably different. CONCLUSIONS: Among most clinicians, outpatient PSA testing behaviors appear to be consistent with decision fatigue. These findings establish decision fatigue as a promising, actionable target for reducing wasteful and low-value practices in routine urologic care. LAY SUMMARY: Decision fatigue causes poorer choices to be made with repetitive decision making. This study used medical records to investigate whether decision fatigue influenced clinicians' likelihood of ordering a low-value screening test (prostate-specific antigen [PSA]) for prostate cancer. In more than 1.5 million outpatient appointments by adult men without prostate cancer, the chances of both appropriate and low-value PSA testing declined as the clinic day progressed, with a larger decline for appropriate testing. Testing patterns in urologists were different from those reported by other clinicians. The authors conclude that outpatient PSA testing behaviors appear to be consistent with decision fatigue among most clinicians, and interventions may reduce wasteful testing and downstream patient harms.
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Antígeno Prostático Específico , Neoplasias de la Próstata , Adulto , Anciano , Citas y Horarios , Detección Precoz del Cáncer , Fatiga/diagnóstico , Humanos , Masculino , Tamizaje Masivo , Persona de Mediana Edad , Neoplasias de la Próstata/diagnóstico , Neoplasias de la Próstata/prevención & controlRESUMEN
PURPOSE: We examined postprostatectomy orgasmic function and assessed for potential predictors. MATERIALS AND METHODS: Between 2005 and 2013, 499 men underwent radical prostatectomy and completed quality of life questionnaires prospectively before surgery and at regular postoperative intervals. We used mixed effects logistic regression models to evaluate average differences in followup measures and interactions with time. RESULTS: At a median followup of 36 months orgasmic function was worse, stable or improved in 300 (60.1%), 152 (30.5%) and 47 men (9.4%), respectively. Orgasmic function recovery plateaued at 15 to 21 months. High postoperative orgasmic function was positively associated with younger age (50 years or younger vs 51 to 60 OR 3.40, 95% CI 1.56-7.41), nerve sparing (bilateral OR 7.11, 95% CI 2.55-19.77, modified 4.34, 95% CI 1.38-13.58 and unilateral OR 3.93, 95% CI 1.17-13.16), erectile function (OR 4.67, 95% CI 3.32-6.57) and sexual desire (OR 5.51, 95% CI 3.95-7.68) but negatively associated with lower urinary tract symptoms (OR 0.58, 95% CI 0.41-0.82) and urinary incontinence (OR 0.38, 95% CI 0.25-0.56). Although robotic status did not influence orgasmic function in the overall cohort, it was associated with faster recovery on subgroup analysis of 356 patients with long followup. On another subgroup analysis of 235 men with long followup and poor erectile function the association of high preoperative orgasmic function and bilateral nerve sparing with high orgasmic function persisted, suggesting an independent effect on orgasmic function apart from that on erectile function. CONCLUSIONS: Orgasmic function recovery after radical prostatectomy is a lengthy process. Predictors of orgasmic function include preoperative orgasmic function, age, nerve sparing status, erectile function, sexual desire and urinary control and function.
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Disfunción Eréctil/epidemiología , Síntomas del Sistema Urinario Inferior/epidemiología , Orgasmo , Complicaciones Posoperatorias/epidemiología , Prostatectomía/efectos adversos , Recuperación de la Función , Anciano , Estudios de Cohortes , Disfunción Eréctil/psicología , Humanos , Síntomas del Sistema Urinario Inferior/psicología , Masculino , Persona de Mediana Edad , Erección Peniana , Complicaciones Posoperatorias/psicología , Neoplasias de la Próstata/patología , Neoplasias de la Próstata/cirugía , Calidad de Vida , Encuestas y CuestionariosRESUMEN
PURPOSE: Prostate cancer treatment results in several sexually related side effects beyond the well studied erectile dysfunction. Climacturia (leakage of urine during orgasm) has been reported after prostatectomy but studies have been limited by multiple factors. In this study we examine the prevalence, causes and impact on orgasm function of climacturia after definitive treatment of prostate cancer with surgery or radiation. MATERIALS AND METHODS: A total of 906 anonymous surveys were sent to patients with prostate cancer treated with surgery and/or radiation. Respondents were asked about the presence of urinary leakage, climacturia and various elements related to sexual and orgasmic function. We estimated the prevalence of climacturia, evaluated the differences between those with and without climacturia, and assessed the impact of climacturia on orgasmic function. RESULTS: Overall 412 surveys were returned and available for analysis, and of these respondents 75.2% were sexually active or experiencing orgasms. Climacturia was reported by 22.6% of these respondents, and by 28.3%, 5.2% and 28.6% of those treated with surgery, radiation, or both, respectively (p <0.001). The use of aides to obtain an erection (OR 2.24, 95% CI 1.08-4.93, p = 0.035) and the presence of urinary incontinence (OR 3.09, 95% CI 1.66-5.88, p <0.001) were also associated with climacturia in a multivariate logistic regression model. Climacturia had no significant impact on orgasmic function and satisfaction. CONCLUSIONS: Climacturia is experienced by a substantial proportion of men after undergoing definitive treatment of prostate cancer. We found a complex relationship between stress urinary incontinence and climacturia, and noted that the presence of climacturia does not necessarily negatively impact sexual satisfaction.
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Neoplasias de la Próstata/terapia , Disfunciones Sexuales Fisiológicas/etiología , Incontinencia Urinaria/etiología , Anciano , Encuestas Epidemiológicas , Humanos , Masculino , Persona de Mediana Edad , Orgasmo , Prostatectomía/efectos adversos , Neoplasias de la Próstata/radioterapia , Neoplasias de la Próstata/cirugía , Radioterapia/efectos adversosRESUMEN
OBJECTIVES: Bladder perforation is the second most common complication during transurethral resection of bladder tumours. It is unknown whether perforation affects the natural history of the tumour through cell seeding. The aim of this study was to study the impact of perforation on the oncologic outcomes of bladder carcinoma. MATERIALS AND METHODS: Between 2003 and 2007, 926 consecutive patients underwent transurethral resection of bladder tumours at our institution; 327 cases were staged ≥ pT2 and were treated immediately with cystectomy and/or multimodal therapy and therefore excluded from the study. An additional 34 cases without urothelial carcinoma were excluded. Of the remaining 565 patients with non-muscle invasive bladder cancer, 457 (80.8 %) were male and 108 (19.2 %) were female with a mean age of 69.5 years in men and 67.3 years in women. Thirty-seven patients (6.5 %) experienced bladder perforation at the time of tumour resection. This group of patients (Group 1) was compared to the remaining 528 patients (Group 2) who did not experience a bladder perforation. RESULTS: Patients with bladder wall perforation experienced a shorter disease-free survival in both univariate (p = 0.003) and multivariate analyses (p = 0.006). In addition, subsequent recurrences revealed stage progression of recurrent disease (p = 0.05) and trended to a higher number of cystectomies in the perforated group of patients (p = 0.06). Nevertheless, perforation did not appear to influence overall survival (p = 0.127) or cancer-specific survival (p = 0.141). CONCLUSION: The results indicate that bladder perforation during resection of superficial bladder tumours is burdened by a shortened disease-free survival and T-stage progression.
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Carcinoma de Células Transicionales/secundario , Carcinoma de Células Transicionales/cirugía , Cistectomía/métodos , Complicaciones Intraoperatorias/etiología , Siembra Neoplásica , Neoplasias de la Vejiga Urinaria/patología , Neoplasias de la Vejiga Urinaria/cirugía , Vejiga Urinaria/lesiones , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , UretraRESUMEN
PURPOSE: The most effective diagnostic strategy for the very small, incidentally detected solid renal mass is uncertain. We assessed the cost-effectiveness of adding percutaneous biopsy or active surveillance to the diagnosis of a 2 cm or less solid renal mass. MATERIALS AND METHODS: A Markov state transition model was developed to observe a hypothetical cohort of healthy 60-year-old men with an incidentally detected, 2 or less cm solid renal mass, comparing percutaneous biopsy, immediate treatment and active surveillance. The primary outcomes assessed were the incremental cost-effectiveness ratio measured by cost per life-year gained at a willingness to pay threshold of $50,000. Model results were assessed by sensitivity analysis. RESULTS: Immediate treatment was the highest cost, most effective diagnostic strategy, providing the longest overall survival of 18.53 life-years. Active surveillance was the lowest cost, least effective diagnostic strategy. On cost-effectiveness analysis using a societal willingness to pay threshold of $50,000 active surveillance was the preferred choice at a $75,000 willingness to pay threshold while biopsy and treatment were acceptable ($56,644 and $70,149 per life-year, respectively). When analysis was adjusted for quality of life, biopsy dominated immediate treatment as the most cost-effective diagnostic strategy at $33,840 per quality adjusted life-year gained. CONCLUSIONS: Percutaneous biopsy may have a greater role in optimizing the diagnosis of an incidentally detected, 2 cm or less solid renal mass.
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Neoplasias Renales/economía , Biopsia con Aguja/economía , Análisis Costo-Beneficio , Humanos , Neoplasias Renales/patología , Neoplasias Renales/terapia , Masculino , Cadenas de Markov , Persona de Mediana Edad , Vigilancia de la Población , Sensibilidad y Especificidad , Factores de TiempoRESUMEN
PURPOSE: We describe current trends in robotic and open radical prostatectomy in the United States after examining case logs for American Board of Urology certification. MATERIALS AND METHODS: American urologists submit case logs for initial board certification and recertification. We analyzed logs from 2004 to 2010 for trends and used logistic regression to assess the impact of urologist age on robotic radical prostatectomy use. RESULTS: A total of 4,709 urologists submitted case logs for certification between 2004 and 2010. Of these logs 3,374 included 1 or more radical prostatectomy cases. Of the urologists 2,413 (72%) reported performing open radical prostatectomy only while 961 (28%) reported 1 or more robotic radical prostatectomies and 308 (9%) reported robotic radical prostatectomy only. During this 7-year period we observed a large increase in the number of urologists who performed robotic radical prostatectomy and a smaller corresponding decrease in those who performed open radical prostatectomy. Only 8% of patients were treated with robotic radical prostatectomy by urologists who were certified in 2004 while 67% underwent that procedure in 2010. Median age of urologists who exclusively performed open radical prostatectomy was 43 years (IQR 38-51) vs 41 (IQR 35-46) for those who performed only robotic radical prostatectomy. CONCLUSIONS: While the rate was not as high as the greater than 85% industry estimate, 67% of radical prostatectomies were done robotically among urologists who underwent board certification or recertification in 2010. Total radical prostatectomy volume almost doubled during the study period. These data provide nonindustry based estimates of current radical prostatectomy practice patterns and further our understanding of the evolving surgical treatment of prostate cancer.
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Práctica Profesional/tendencias , Prostatectomía/métodos , Prostatectomía/tendencias , Neoplasias de la Próstata/cirugía , Robótica/tendencias , Urología/estadística & datos numéricos , Factores de Edad , Certificación , Humanos , Laparoscopía , Modelos Logísticos , Masculino , Práctica Profesional/estadística & datos numéricos , Prostatectomía/estadística & datos numéricos , Robótica/estadística & datos numéricos , Estados Unidos , Urología/normas , Urología/tendenciasRESUMEN
Germline likely pathogenic or pathogenic variants (PVs) have been identified in up to 17% of men with prostate cancer (PC) and may drive disease severity or be targetable by novel therapies. National Comprehensive Cancer Network (NCCN) guidelines encouraging germline testing in metastatic PC were recently expanded to include all men with high-risk, very high-risk, or regional PC. Our aim was to assess the impact of expanded NCCN guidelines on the detection rate of germline PVs and to determine patient-level factors associated with a PV germline testing result. PATIENTS AND METHODS: Men with PC underwent multigene germline genetic testing for PVs from June 2016 to December 2018, and trends were compared. The association of patient-level factors with a PV germline testing result, where ≥ 1 PV was identified, was assessed using analysis of variance and univariate logistic regression. Sensitivity analyses were limited to clinically actionable variants and those associated with disease severity or progression (BRCA1/2 and ATM). RESULTS: Of 408 men undergoing germline testing, 42 (10.3%) men had PVs and 366 (89.7%) men did not have PVs identified. The proportion of men identified with a germline PV remained stable following testing criteria expansion (9.4% v 10.6%, P = .73). No patient-level factors were significantly associated with increased odds of a PV germline testing result, including age at diagnosis, race, pretreatment prostate-specific antigen, Gleason grade group, NCCN risk group, and family history of cancer (breast and/or ovarian, prostate, or any cancer). CONCLUSION: This study demonstrated a stable PV detection rate in men with PC using expanded criteria aligned to the updated NCCN testing guidelines. However, we did not find strong evidence to suggest that patient-level factors are associated with PV germline testing results. These findings support the recent expansion of NCCN germline testing guidelines in PC.
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Pruebas Genéticas/normas , Células Germinativas , Neoplasias de la Próstata/genética , Anciano , Variación Genética , Humanos , Masculino , Persona de Mediana Edad , Guías de Práctica Clínica como AsuntoRESUMEN
BACKGROUND: To determine the feasibility of using wearables in patients undergoing radical cystectomy to monitor postoperative heart rate and activity and attempt to correlate these factors to complications and readmissions. MATERIALS AND METHODS: We conducted a prospective study of 20 patients undergoing radical cystectomy for bladder cancer between June 2017 and March 2018. Each patient was provided with a Garmin Vívofit heart rate (HR) activity tracker and instructed to wear it on their wrist for 30 days postoperatively. Heart rate, steps, and sleep data were collected during this time. Patients were called at 10-day intervals and surveyed for complications and device compliance. Univariable mixed effects logistic regression models were used to compare daily activity tracker measures with occurrence of an adverse event. Odds ratios, 95% confidence intervals, and p-values were reported. RESULTS: Median age was 65 (interquartile range 61-74) years. Patients had usable data for a median of 59.3% (interquartile range 25-71.7%) of the time. Five patients experienced a postoperative event (1 readmission for sepsis from urinary tract source, 1 inpatient rapid response called for tachycardic event, 3 unscheduled visits related to dehydration), where event data was recorded over a total of 17 days. Higher step count was associated with reduced odds of an adverse event (odds ratio 0.31, 95% confidence interval 0.10-0.98 per 1000 steps, pâ=â0.047). CONCLUSIONS: Postoperative activity and heart rate monitoring in cystectomy patients is feasible though current wearables are not well suited for this task.
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OBJECTIVE: To evaluate preoperative scoring systems and operative management and their relation to complications in patients older than 75 years undergoing cystectomy at two academic institutions. METHODS: In total, 212 patients aged 75-95 years with muscle invasive bladder cancer underwent cystectomy at the University of Utah and Central Hospital of Bolzano, Italy. The rates of Grade 3 Clavien-Dindo complications and above in radical cystectomy patients (n = 199) were compared using Eastern Cooperative Oncology Group Scores and American Society of Anesthesiologists Physical Status Classification. The rates of Grade 3 Clavien-Dindo complications and above were also compared by urinary diversion type. Logistic regression was used to control for source institution. RESULTS: In total, 199 cases were included in the primary analysis. Neither of the preoperative scoring systems were predictive for identification of radical cystectomy patients with ⩾Grade 3 Clavien-Dindo complications. In secondary analysis (n = 212, including partial cystectomy), none of the urinary diversion types associated with radical cystectomy had a significantly different rate of complications. However, partial cystectomy (n = 13) had a significantly lower rate of complications. CONCLUSION: Complication rates among elderly patients undergoing cystectomy for muscle invasive bladder cancer were very high. For patients who are approved for surgery after the history and physical exam, none of our objective metrics adequately predicted operative risk. A unique diversion procedure described by the Bolzano group, uretero-ureterocutaneostomy, had equivalent complication rates to the more common diversion procedures. It also appears based on outcomes in this cohort that partial cystectomy is a particularly favorable option within the elderly population in terms of perioperative morbidity.
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Cistectomía , Neoplasias de la Vejiga Urinaria/cirugía , Anciano , Anciano de 80 o más Años , Cistectomía/métodos , Evaluación Geriátrica , Humanos , Invasividad Neoplásica , Complicaciones Posoperatorias/epidemiología , Periodo Preoperatorio , Estudios Retrospectivos , Neoplasias de la Vejiga Urinaria/patologíaRESUMEN
AIM: To examine the long-term follow-up of patients with that previously underwent risk stratification based on multicolour FISH testing. PATIENTS AND METHODS: On 81 patients with intermediate-risk urothelial carcinoma, a multicolour-FISH was performed. Patients were sub-divided into low- and high-risk groups based on chromosomal patterns. Univariate analysis, using Mantel-Cox log-rank test for disease-free, progression-free survival and overall survival, was employed to determine the prognostic significance of FISH analysis. Survival times were calculated according to the Kaplan-Meier product-limit method and multivariate analysis using Cox proportional hazards regression model. RESULTS: The univariate Mantel-Cox log-rank test showed significant differences between the low-risk and the high-risk group for disease-free survival (p=0.005) and overall survival (p=0.038), but not for progression-free survival (p=0.129). CONCLUSION: Our long-term follow-up data appear to be able to divide tumors into low and high risk groups for recurrence based on molecular/genetic changes observed with FISH.
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Aberraciones Cromosómicas , Cromosomas Humanos/genética , Hibridación Fluorescente in Situ/métodos , Neoplasias de la Vejiga Urinaria/clasificación , Neoplasias de la Vejiga Urinaria/patología , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Invasividad Neoplásica , Estadificación de Neoplasias , Pronóstico , Estudios Prospectivos , Factores de Riesgo , Tasa de Supervivencia , Factores de Tiempo , Neoplasias de la Vejiga Urinaria/genéticaRESUMEN
INTRODUCTION: Numerous surgical techniques have been described to facilitate closure of the renal parenchymal defect. We sought to describe the operative technique and define the safety and efficacy of using an expanded polytetrafluoroethylene (GORE-TEX; WL Gore and Associates, Flagstaff, AZ) bolster to aid in closure of the renal parenchymal defect at the time of open partial nephrectomy (OPN). TECHNICAL CONSIDERATIONS: A retrospective review of 175 patients who underwent an OPN using an expanded polytetrafluoroethylene (ePTFE) bolster at the Huntsman Cancer Hospital, University of Utah and Salt Lake City Veterans Affairs Medical Center from March 2005 to February 2013 was conducted. Postoperative complications occurring within 90 days were graded using the Clavien grading system. CONCLUSION: Overall, 57 patients (32.6%) experienced a postoperative complication. Fifteen patients (8.5%) had a Clavien ≥ grade-III complication. Ten patients (5.7%) received blood transfusions. Urine leak requiring intervention occurred in 2 patients (1.1%). Delayed hemorrhage requiring nephrectomy and pseudoaneurysm formation were rare, occurring in 1 patient each (0.6%). Infection of the ePTFE material occurred in 2 patients (1.1%). In both cases, it was explanted without requiring nephrectomy. The use of an ePTFE bolster is an effective and safe method of closing the renal parenchymal defect after OPN with an acceptable 90-day postoperative complication rate and a low risk of infection.
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Nefrectomía/métodos , Politetrafluoroetileno/química , Implantes Absorbibles , Anciano , Aneurisma Falso , Femenino , Humanos , Riñón/cirugía , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias , Estudios Retrospectivos , Procedimientos Quirúrgicos Operativos , Suturas , Resultado del TratamientoRESUMEN
OBJECTIVE: We reviewed the imaging studies of patients with known metastatic renal cell carcinoma (RCC) in order to more accurately assess where retroperitoneal lymphadenopathy occurs. METHODS: The database of patients with metastatic RCC was reviewed and 101 patients were found from 2002 to 2006. Each patient's CT scans were then reviewed. Twenty-seven retroperitoneal sections were defined for each patient, with 3 positions in each of the x-, y-, and z-axis. Lymph nodes greater than 1 cm were then counted for each section. RESULTS: Of the 101 patients, 31, of whom 28 qualified, were found to have retroperitoneal lymphadenopathy of a least 1 cm or greater. Two-thirds of nodes (87 out of 124) exhibited a suprahilar, intra-aortocaval, and retro-aortocaval trend of lymph node enlargement. Three patients (11%) had isolated infrahilar nodes, while 8 patients (29%) exhibited a skip lesion pattern by imaging criteria. Only 4 patients (14%) were noted to have lymph nodes that were confined to the ipsilateral (paraaortic or paracaval) nodes in the perihilar and infrahilar region, which would be readily accessible during renal surgery. CONCLUSIONS: Lymphatic drainage in RCC is ill-defined, likely due to multiple lymphatic outflow channels. However, after a review of retroperitoneal lymphadenopathy imaging in patients with known metastatic RCC, there does seem to be a cephalad, posterior, and medial drainage pattern.
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Carcinoma de Células Renales/diagnóstico por imagen , Neoplasias Renales/diagnóstico por imagen , Ganglios Linfáticos/diagnóstico por imagen , Enfermedades Linfáticas/diagnóstico por imagen , Carcinoma de Células Renales/complicaciones , Carcinoma de Células Renales/patología , Humanos , Neoplasias Renales/complicaciones , Neoplasias Renales/patología , Ganglios Linfáticos/patología , Enfermedades Linfáticas/etiología , Espacio Retroperitoneal/diagnóstico por imagen , Tomografía Computarizada por Rayos XRESUMEN
Paraneoplastic neurological syndromes are unusual in prostatic cancer, and paraneoplastic cerebellar degeneration associated with adenocarcinoma of the prostate is rare. Here we report a 68year old man who developed progressive ataxia in the setting of stage D2 adenocarcinoma of the prostate and whose MRI showed cerebellar atrophy. The patient's serum produced a previously undescribed pattern of immunoreactivity, binding to nuclei and cytoplasm of Purkinje cells, deep cerebellar neurons, scattered cells in the molecular and granule cell layers, and neuronal populations in thalamus, cerebral cortex, and hippocampus but not with liver or kidney. The patient's IgG also labeled a 65kDa protein, discrete from Yo antigen, in Western blots of Purkinje cell lysates and did not react with blotted recombinant HuD, Ri, Yo, or amphiphysin proteins. Sera from neurologically normal patients with adenocarcinoma of the prostate did not contain this antibody, and the patient's serum did not react with normal prostate or with prostatic adenocarcinomas from other individuals. Prostatic adenocarcinoma may occasionally be accompanied by development of anticerebellar antibodies. Adenocarcinoma of the prostate should be considered as a possible underlying malignancy in older males with unexplained progressive cerebellar degeneration.
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Adenocarcinoma/inmunología , Autoanticuerpos/sangre , Encéfalo/inmunología , Neuronas/inmunología , Degeneración Cerebelosa Paraneoplásica/inmunología , Neoplasias de la Próstata/inmunología , Adenocarcinoma/complicaciones , Anciano , Western Blotting , Encéfalo/patología , Técnica del Anticuerpo Fluorescente , Humanos , Imagen por Resonancia Magnética , Masculino , Degeneración Cerebelosa Paraneoplásica/complicaciones , Degeneración Cerebelosa Paraneoplásica/patología , Neoplasias de la Próstata/complicaciones , Células de Purkinje/inmunologíaRESUMEN
OBJECTIVES: To determine the feasibility of an eccentric resistance exercise training protocol in men with prostate cancer and to assess whether men with prostate cancer who are receiving androgen deprivation therapy (ADT) have a blunted effect from the training as compared with prostate cancer survivors not receiving ADT. DESIGN: Prospective pilot study. SETTING: Academic medical center. PARTICIPANTS: Sixteen men with prostate cancer (Gleason scores 3+3 to 4+4) were initially enrolled. Ten men (mean age 66, range 48-86) completed the study, 5 were currently receiving ADT. Analysis was performed on these 10 men. INTERVENTIONS: Subjects were evaluated at baseline. All men underwent a 12-week resistance exercise training protocol using a recumbent, high-force eccentric, leg cycle ergometer 3 times per week at a "somewhat hard" perceived exertion for 12 to 15 minutes. Preexercise and postexercise training changes were examined within and between groups. MAIN OUTCOME MEASURES: Quadriceps muscle volume (magnetic resonance imaging), isometric knee extension strength, functional mobility (Timed Up and Go Test [TUG] and 6-minute walk [6MW]), health-related quality of life (FACT-P), and fatigue (FACIT-fatigue scale). RESULTS: The ADT group demonstrated significant within-group improvements in the 6MW (P = .01) and isometric knee extension strength (P = .03). This group also demonstrated a clinically relevant change in the FACT-P; however, this did not meet statistical significance. The non-ADT group demonstrated significant within-group improvements in the physical subscale of the FACT-P (P = .03) and an increase in muscle volume (P = .04). Their improvements in the TUG approached significance (P = .08). No between-group differences existed. CONCLUSIONS: Eccentric resistance exercise was well tolerated, and both groups derived some benefits in strength and functional mobility. Men receiving ADT did not appear to have a blunted response to the exercise as compared with prostate cancer survivors not receiving ADT.
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Antagonistas de Andrógenos/administración & dosificación , Neoplasias de la Próstata/tratamiento farmacológico , Neoplasias de la Próstata/rehabilitación , Entrenamiento de Fuerza/métodos , Anciano , Anciano de 80 o más Años , Estudios de Factibilidad , Humanos , Estudios Longitudinales , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Fatiga Muscular/fisiología , Fuerza Muscular/fisiología , Músculo Esquelético/fisiología , Proyectos Piloto , Estudios Prospectivos , Calidad de Vida , Encuestas y Cuestionarios , Sobrevivientes , Resultado del TratamientoRESUMEN
PURPOSE: We prospectively determined the accuracy of computerized tomography (CT) and needle biopsy of solid renal masses. MATERIALS AND METHODS: A total of 100 patients with a solid renal mass who were scheduled for operation were prospectively evaluated. CT was performed before radical or partial nephrectomy. Biopsy of the surgical specimens was done twice through the tumor using an 18 gauge biopsy gun. Specimens were sent for permanent section and review by 2 pathologists blinded to each other and to the whole tissue specimens. Images were reviewed by 2 radiologists blinded to each other and to the results of pathological analysis. Results of CT and permanent biopsy were compared with the results of whole tissue specimen analysis. RESULTS: Specimens were obtained from 59 radical and 41 partial nephrectomies. Malignant neoplasms were present in 85 patients (85%). Overall accuracy was 77% and 72%, the nondiagnostic rate was 20% and 21%, sensitivity was 81% and 83%, and specificity was 60% and 33%. For the 2 radiologists overall accuracy was 60% and 66%, the nondiagnostic rate was 31% and 23%, sensitivity was 70% and 77%, and specificity was 20% and 20%, respectively. CONCLUSIONS: Overall permanent biopsy results were accurate in more than 72% of cases and CT was accurate in more than 60%. However, because the nondiagnostic rate for CT and needle biopsy was 20% and 31%, respectively, and specificity was low, we do not recommend routine preoperative CT and subsequent needle biopsy to guide treatment decision making. Rather, cases must be decided individually.