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1.
World J Urol ; 37(1): 165-172, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-29882105

RESUMO

BACKGROUND: Cisplatin-based neoadjuvant chemotherapy (NAC) for muscle invasive bladder cancer improves all-cause and cancer specific survival. We aimed to evaluate whether the detection of carcinoma in situ (CIS) at the time of initial transurethral resection of bladder tumor (TURBT) has an oncological impact on the response to NAC prior to radical cystectomy. PATIENTS AND METHODS: Patients were identified retrospectively from 19 centers who received at least three cycles of NAC or induction chemotherapy for cT2-T4aN0-3M0 urothelial carcinoma of the bladder followed by radical cystectomy between 2000 and 2013. The primary and secondary outcomes were pathological response and overall survival, respectively. Multivariable analysis was performed to determine the independent predictive value of CIS on these outcomes. RESULTS: Of 1213 patients included in the analysis, 21.8% had concomitant CIS. Baseline clinical and pathologic characteristics of the 'CIS' versus 'no-CIS' groups were similar. The pathological response did not differ between the two arms when response was defined as pT0N0 (17.9% with CIS vs 21.9% without CIS; p = 0.16) which may indicate that patients with CIS may be less sensitive to NAC or ≤ pT1N0 (42.8% with CIS vs 37.8% without CIS; p = 0.15). On Cox regression model for overall survival for the cN0 cohort, the presence of CIS was not associated with survival (HR 0.86 (95% CI 0.63-1.18; p = 0.35). The presence of LVI (HR 1.41, 95% CI 1.01-1.96; p = 0.04), hydronephrosis (HR 1.63, 95% CI 1.23-2.16; p = 0.001) and use of chemotherapy other than ddMVAC (HR 0.57, 95% CI 0.34-0.94; p = 0.03) were associated with shorter overall survival. For the whole cohort, the presence of CIS was also not associated with survival (HR 1.05 (95% CI 0.82-1.35; p = 0.70). CONCLUSION: In this multicenter, real-world cohort, CIS status at TURBT did not affect pathologic response to neoadjuvant or induction chemotherapy. This study is limited by its retrospective nature as well as variability in chemotherapy regimens and surveillance regimens.


Assuntos
Antineoplásicos/uso terapêutico , Carcinoma in Situ/terapia , Cistectomia , Quimioterapia de Indução , Terapia Neoadjuvante , Neoplasias da Bexiga Urinária/terapia , Idoso , Carcinoma in Situ/mortalidade , Carcinoma in Situ/patologia , Cisplatino/uso terapêutico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento , Neoplasias da Bexiga Urinária/mortalidade , Neoplasias da Bexiga Urinária/patologia
3.
Curr Urol Rep ; 12(3): 203-8, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21394597

RESUMO

Pelvic lymph node dissection (PLND) represents the standard for detection of occult pelvic nodal metastases from prostate cancer, and may be performed separately from or at the time of radical prostatectomy. In addition to its potential for diagnostic staging, a PLND may be therapeutic in some patients. However, considerable debate centers on the appropriate candidates for the procedure, the extent and proper boundaries of dissection, optimal surgical approach, and absolute oncologic benefit. Several series suggest that there likely is limited benefit of PLND in low-risk patients and that PLND can be safely omitted in a high percentage of men undergoing contemporary radical prostatectomy. Furthermore, the value of PLND in patients with intermediate- and high-risk disease must be balanced against the potential morbidity of the procedure. In the setting of this debate, concern over morbidity directly attributable to this procedure is of paramount importance. This review focuses on the complications associated with PLND, including lymphocele, thromboembolic events, ureteral injury, nerve injury, vascular injury, and lymphedema.


Assuntos
Excisão de Linfonodo/efeitos adversos , Linfonodos/patologia , Complicações Pós-Operatórias/fisiopatologia , Neoplasias da Próstata/patologia , Neoplasias da Próstata/cirurgia , Dissecação/efeitos adversos , Humanos , Incidência , Excisão de Linfonodo/métodos , Linfonodos/cirurgia , Linfedema/etiologia , Linfedema/fisiopatologia , Linfocele/etiologia , Linfocele/fisiopatologia , Masculino , Invasividade Neoplásica/patologia , Estadiamento de Neoplasias , Pelve/patologia , Pelve/cirurgia , Complicações Pós-Operatórias/epidemiologia , Prognóstico , Neoplasias da Próstata/mortalidade , Embolia Pulmonar/etiologia , Embolia Pulmonar/fisiopatologia , Medição de Risco , Análise de Sobrevida , Lesões do Sistema Vascular/etiologia , Lesões do Sistema Vascular/fisiopatologia , Trombose Venosa/etiologia , Trombose Venosa/fisiopatologia
4.
Eur Urol Focus ; 7(6): 1347-1354, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32771446

RESUMO

BACKGROUND: Cisplatin-based neoadjuvant chemotherapy (NAC) for muscle-invasive bladder cancer (MIBC) is associated with improved overall and cancer-specific survival. The post-NAC pathological stage has previously been reported to be a major determinant of outcome. OBJECTIVE: To develop a postoperative nomogram for survival based on pathological and clinical parameters from an international consortium. DESIGN, SETTING, AND PARTICIPANTS: Between 2000 and 2015, 1866 patients with MIBC were treated at 19 institutions in the USA, Canada, and Europe. Analysis was limited to 640 patients with adequate follow-up who had received three or more cycles of NAC. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: A nomogram for bladder cancer-specific mortality (BCSM) was developed by multivariable Cox regression analysis. Decision curve analysis was used to assess the model's clinical utility. RESULTS AND LIMITATIONS: A total of 640 patients were identified. Downstaging to non-MIBC (ypT1, ypTa, and ypTis) occurred in 271 patients (42 %), and 113 (17 %) achieved a complete response (ypT0N0). The 5-yr BCSM was 47.2 % (95 % confidence interval [CI]: 41.2-52.6 %). On multivariable analysis, covariates with a statistically significant association with BCSM were lymph node metastasis (hazard ratio [HR] 1.90 [95% CI: 1.4-2.6]; p < 0.001), positive surgical margins (HR 2.01 [95 % CI: 1.3-2.9]; p < 0.001), and pathological stage (with ypT0/Tis/Ta/T1 as reference: ypT2 [HR 2.77 {95 % CI: 1.7-4.6}; p < 0.001] and ypT3-4 [HR 5.9 {95 % CI: 3.8-9.3}; p < 0.001]). The area under the curve of the model predicting 5-yr BCSM after cross validation with 300 bootstraps was 75.4 % (95 % CI: 68.1-82.6 %). Decision curve analyses showed a modest net benefit for the use of the BCSM nomogram in the current cohort compared with the use of American Joint Committee on Cancer staging alone. Limitations include the retrospective study design and the lack of central pathology. CONCLUSIONS: We have developed and internally validated a nomogram predicting BCSM after NAC and radical cystectomy for MIBC. The nomogram will be useful for patient counseling and in the identification of patients at high risk for BCSM suitable for enrollment in clinical trials of adjuvant therapy. PATIENT SUMMARY: In this report, we looked at the outcomes of patients with muscle-invasive bladder cancer in a large multi-institutional population. We found that we can accurately predict death after radical surgical treatment in patients treated with chemotherapy before surgery. We conclude that the pathological report provides key factors for determining survival probability.


Assuntos
Cistectomia , Neoplasias da Bexiga Urinária , Cistectomia/métodos , Humanos , Músculos/patologia , Terapia Neoadjuvante/métodos , Nomogramas , Estudos Retrospectivos , Neoplasias da Bexiga Urinária/tratamento farmacológico , Neoplasias da Bexiga Urinária/cirurgia
5.
Prostate Cancer Prostatic Dis ; 10(2): 137-42, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17179979

RESUMO

Increasing prostate volume contributes to urinary tract symptoms and may obscure prostate cancer detection. We investigated the association between obesity and prostate volume, prostate-specific antigen (PSA) and PSA density among 753 men referred for prostate biopsy. Among men with a negative biopsy, prostate volume significantly increased approximately 25% from the lowest to highest body mass index (BMI), waist or hip circumference or height categories. PSA was 0.7 ng/ml lower with a high waist-to-hip ratio. These associations were less consistent among subjects diagnosed with high-grade prostatic intraepithelial neoplasia or cancer. Our data suggest that obesity and height are independently associated with prostate volume..


Assuntos
Tamanho Corporal , Antígeno Prostático Específico/análise , Próstata/anatomia & histologia , Hiperplasia Prostática/patologia , Abdome/anatomia & histologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Índice de Massa Corporal , Humanos , Masculino , Pessoa de Meia-Idade , Relação Cintura-Quadril
7.
Urology ; 49(3A Suppl): 113-8, 1997 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-9123730

RESUMO

OBJECTIVES: Six random systematic core biopsies (SRSCB) of the prostate is considered by many to represent the standard method of detecting prostate cancer. We sought to evaluate the sensitivity of the transrectal ultrasound (TRU)S-guided needle biopsies in 89 consecutive patients with a history of biopsy-proven prostate cancer. These patients underwent repeat biopsy prior to enrollment in an ongoing, randomized protocol. We also compared the clinical and pathological features of patients with SRSCB-documented prostate carcinoma and negative repeat-sextant biopsy. METHODS: Our study population consisted of 89 patients enrolled in our randomized, prospective study assessing the effect of androgen deprivation therapy in combination with radical prostatectomy for clinically localized prostate cancer. A comparison was made of the patients' rebiopsy results with initial biopsy. Patients having either a positive or negative rebiopsy were analyzed with respect to grade, T stage, prostate-specific antigen (PSA), PSA density (PSAD), organ-confined rate, and final surgical margin status. RESULTS: Repeat sextant biopsy was positive for prostate cancer in 71 (80%) patients and negative in 18 (20%) patients. There was no significant difference between patients with a negative or positive rebiopsy with respect to PSA or PSAD. There was a trend toward greater prostate volumes in the negative-rebiopsy group (P = 0.08) and lower clinical stage in the negative rebiopsy (P = 0.025) group. In patients with a negative repeat biopsy, the organ-confined (OC) rate was 77% (14/18 patients), as compared to the positive-rebiopsy group of 56% (40/71 patients) (P = 0.08). Similarly, the margin-positive rate in the negative-rebiopsy group was 17% (3/18 patients), as compared to the positive-rebiopsy group who had a margin-positive rate of 44% (31/71 patients) (P = 0.03). CONCLUSIONS: In patients with clinically localized disease, the sensitivity of SRSCB in detecting carcinoma is 80%. The results of this study highlight the potential sampling error of the SRSCB and the implication of a negative rebiopsy in patients with clinically significant prostate cancer.


Assuntos
Biópsia por Agulha/estatística & dados numéricos , Neoplasias da Próstata/patologia , Antagonistas de Androgênios/uso terapêutico , Humanos , Masculino , Estudos Prospectivos , Prostatectomia , Neoplasias da Próstata/diagnóstico por imagem , Neoplasias da Próstata/terapia , Viés de Seleção , Sensibilidade e Especificidade , Ultrassonografia
8.
Urology ; 49(6): 887-93, 1997 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-9187696

RESUMO

OBJECTIVES: Increasingly, nonpalpable prostate-specific antigen (PSA)-detected (Stage T1c) tumors are being treated with curative intent. Presently, only limited information is available regarding pathologic findings correlated with preoperative PSA levels. Herein, we report the characteristics of Stage T1c tumors in a contemporary surgical series. METHODS: Clinical and pathologic results in 107 patients with Stage T1c tumors treated with radical prostatectomy were compared with those in 300 patients with palpable (Stage T2) tumors. Multivariate analysis was performed to determine which clinical variables independently predicted pathologic staging. RESULTS: Stage T1c tumors were equivalent to Stage T2 tumors with respect to organ-confined and margin-positive rates. PSA level was the strongest independent predictor of extracapsular and margin-positive rates (P = 0.003). The absence of palpability was not a significant predictor of pathologic outcome. Significantly higher rates of organ- and specimen-confined disease were seen in patients with PSA levels less than 10.0 ng/mL, particularly less than 7.0 ng/mL. Patients with serum PSA levels greater than 20 ng/mL were at high risk for positive margins (relative risk 5.42, P < 0.001). CONCLUSIONS: Stage T1c tumors represent a heterogeneous group of cancers. These tumors are pathologically similar to Stage T2 tumors, and patients should be offered similar treatment options. PSA level was the strongest predictor of pathologic stage, irrespective of tumor palpability. These results suggest that efforts directed toward identifying cancers, including nonpalpable tumors, in patients with early PSA elevations may result in improved rates of organ-confined disease. The impact of treatment on Stage T1c tumors remains to be defined.


Assuntos
Antígeno Prostático Específico/sangue , Prostatectomia , Neoplasias da Próstata/sangue , Neoplasias da Próstata/cirurgia , Adulto , Idoso , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Estadiamento de Neoplasias , Palpação , Cuidados Pré-Operatórios , Prognóstico , Neoplasias da Próstata/patologia
9.
Urology ; 52(4): 659-62, 1998 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-9763089

RESUMO

OBJECTIVES: Gleason grade from prostate needle biopsy (PNB) specimens is important in guiding therapeutic decision making in patients with localized prostate cancer. Recent data from our institution suggest a significant discordance between Gleason grading from PNB versus the actual pathologic grade at radical prostatectomy (RRP). Of most concern is that a substantial proportion of patients with Gleason score of 6 or less from PNB actually have Gleason score of 7 or more at RRP. Under classic measurement theory, one useful way to improve the reliability of an inherently unreliable test is to repeat it. We investigated this strategy in an effort to reduce undergrading errors. METHODS: The control group of patients (n = 51) from our neoadjuvant androgen deprivation protocol was used as the test (two-biopsy) group in this study. These patients underwent two separate PNBs before RRP. We used the highest Gleason score from the two biopsies in these patients and compared the error rates with a concurrent group of patients treated at our institution (n = 226) who had only one set (single-biopsy group) of prostate biopsies. All pathologic slides were reviewed at our institution. Any PNB grade of 6 or less that was scored as 7 or more on final pathology was considered significant. RESULTS: Mean age, prostate-specific antigen levels, and stage distribution were not significantly different between these two groups. In the single-biopsy group, 165 patients had PNB Gleason score of 6 or less. Of these patients, 63 (38%) had final pathologic grade of 7 or more. In the two-biopsy group, 37 patients had PNB Gleason score of 6 or less. Of these patients, only 7 (19%) had final pathologic grade of 7 or more (P = 0.04). CONCLUSIONS: Prostate rebiopsy minimizes the inherent unreliability of PNB derived grade and should be considered for patients in whom watchful waiting or nomogram-based therapy has been selected.


Assuntos
Biópsia por Agulha/métodos , Neoplasias da Próstata/diagnóstico por imagem , Neoplasias da Próstata/patologia , Biópsia por Agulha/normas , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Ultrassonografia
10.
Urology ; 49(3A Suppl): 95-101, 1997 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-9123743

RESUMO

OBJECTIVE: An on-going study at the Memorial Sloan-Kettering Cancer Center assessed the effectiveness of androgen deprivation therapy (ADT) prior to surgical removal of the prostate. In this report, we evaluate the effectiveness of ADT on systemic disease by monitoring the presence or absence of circulating prostatic epithelial cells using a reverse transcription polymerase chain reaction (RT-PCR) assay for prostatic-specific membrane antigen (PSM). METHODS: PSM RT-PCR was performed on a total of 38 prostate cancer patients. There were 12 pT2 patients in the ADT group and 10 patients in the control pT2 group and 5 pT3 patients in the ADT group and 11 pT3 patients in the control group. RESULTS: For pT2 patients, 2 of the 12 patients (17%) were positive for circulating prostatic cells during androgen deprivation therapy but before radical retroprostatectomy (RRP). Within a 6-month period after RRP, 3 of 12 patients (25%) were positive. For the period between the 7th and 12th month after RRP, 6 of 12 patients (50%) were positive. For the period 12-36 months after RRP, 2 of the 12 patients (17%) remained positive for circulating prostatic cells. In contrast, the pT2 control group had higher positive rates in comparable periods: 4 of 10 patients (40%) were positive prior to surgery; 6 of 10 patients (60%) were positive during the 6 months following surgery. For the period between the 7th and 12th month following surgery, 4 of 7 patients (57%) were positive for PSM. Finally, 3 of 6 patients (50%) were positive for the period longer than 12 months. Regarding patients who have extraprostatic disease (stage pT3), the ADT group had a lower rate of circulating PSM positive cells. Before RRP and during androgen deprivation therapy, 1 out of 5 patients (20%) in the ADT group were positive as compared to 4 out of 11 patients for the control group. Within a 6-month period after RRP, the ADT group had 4 out of 9 (44%) patients positive for PSM as compared to 9 of 11 (82%) for the control group. For the period between the 7th and 12th months postsurgery, 1 of 5 patients (20%) of the ADT group were positive as compared to 4 of 7 (57%) of the control patients. CONCLUSIONS: These results indicate that patients with pT2 and pT3 lesions who receive neoadjuvant ADT are less likely to have circulating tumor cells detected compared to a control group both prior to and after surgery. In addition, irrespective of ADT or control group, there were increases in the detection of circulating tumor cells in the period after RRP, and this rise gradually decreased, suggesting that surgical manipulation may cause hematogenous dissemination of tumor cells and that ADT reduces such dissemination of tumor cells. Overall, these results indicate that the use of neoadjuvant ADT decreases the number of circulating prostatic cells. These data represent the initial results of an on-going study. As additional patients are added to the studies, attempts to correlate PSM positivity and serum PSA values postoperatively, recurrence, and margin positivity will be made.


Assuntos
Antagonistas de Androgênios/uso terapêutico , Antígenos de Neoplasias/análise , Antígenos de Superfície/análise , Células Neoplásicas Circulantes/química , Neoplasias da Próstata/tratamento farmacológico , Neoplasias da Próstata/patologia , Quimioterapia Adjuvante , Glutamato Carboxipeptidase II , Humanos , Masculino , Reação em Cadeia da Polimerase , Cuidados Pré-Operatórios , Neoplasias da Próstata/sangue
11.
Urology ; 49(3A Suppl): 46-55, 1997 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-9123736

RESUMO

OBJECTIVES: The use of neoadjuvant chemotherapy prior to definitive surgery has been firmly established in other areas of oncology, most notably in the treatment to testis and Wilm's tumors. The use of neoadjuvant androgen deprivation therapy (ADT) in conjunction with radical prostatectomy remains a source of controversy. We have conducted phase II and phase III studies to assess the effects of 3 months of preoperative ADT (goserelin and flutamide) on the pathologic staging and postsurgery prostate-specific antigen (PSA) relapse rate. We also reviewed the data confirming the understaging of clinically localized prostatic cancer and the experimental data providing the conceptual support for ADT. METHODS: We report the results of 141 patients, Stage T0-T0, in a Phase II study with concurrent, nonrandomized controls (N = 72) versus a treatment arm (N = 69) of men receiving 3 months of ADT with 3.6 mg goserelin for 28 days and 750 mg flutamide daily. We also report the interim results in 114 men participating in a prospective, randomized study of ADT versus surgery alone. RESULTS: The 69 patients who received 3 months of goserelin and flutamide followed by radical prostatectomy had a pathologic organ-confined cancer rate of 74%, versus 48% in the control group who received no ADT prior to surgery. The margin-positive rate was 10% in the ADT group versus 33% in the control group. In an interim analysis of 114 patients (59 ADT, 55 control), the organ-confined and margin-positive rates were 73% and 17% in the ADT group versus 56% and 36% in the control arm, respectively. The PSA disease-free rate at a mean follow-up of 28.6 months (range 6.2 to 49.5 months) was 89% in the ADT-treated patients (N = 98) and 84% in the control patients (N = 96). There was no statistical difference demonstrated between the arms with respect to biochemical failure. CONCLUSIONS: While the pathologic staging of tumors following ADT treatment was improved compared with surgical controls, to date the PSA disease-free survival rates are similar. Patients with residual extracapsular (P3) disease after ADT manifest an increased PSA failure rate compared with those with P3 tumors treated by surgery alone. This suggests that ADT may identify a subset of patients with aggressive tumors that may be candidates for additional therapeutic interventions even before PSA failure occurs.


Assuntos
Antagonistas de Androgênios/uso terapêutico , Antineoplásicos Hormonais/uso terapêutico , Flutamida/uso terapêutico , Gosserrelina/uso terapêutico , Neoplasias da Próstata/tratamento farmacológico , Neoplasias da Próstata/cirurgia , Idoso , Quimioterapia Adjuvante , Quimioterapia Combinada , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Células Neoplásicas Circulantes/efeitos dos fármacos , Cuidados Pré-Operatórios , Neoplasias da Próstata/patologia
12.
Prostate Cancer Prostatic Dis ; 15(2): 182-8, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-22105412

RESUMO

BACKGROUND: Various interferences can cause spurious results for common laboratory tests. Although rare, heterophilic antibodies may produce false elevations in PSA that could prompt unnecessary therapy in men previously treated for prostate cancer. The aim of this study was to determine the prevalence of small, spurious PSA elevations, and the role of heterophilic antibodies. METHODS: Phase I: all PSA tests drawn and measured between 27 October 2008 and 26 October 2010 at Vanderbilt University Medical Center were analyzed (n=17 133). Patients who had been treated for prostate cancer with PSA values that changed from undetectable to detectable were evaluated. Phase II: patients with a detectable PSA ≤0.5 ng ml(-1) measured between 24 October 2010 and 19 January 2011 were studied prospectively (n=1288). If any patient had a previously undetectable PSA value, their serum was tested for heterophilic antibody interference. RESULTS: Phase I: 11 men had a spuriously elevated PSA after curative treatment for prostate cancer (0.3%). Mean time to PSA elevation was 3.4±5.5 years, and mean elevation in PSA was 0.33±0.28 ng ml(-1). Each patient's PSA was undetectable after being repeated, and no patient went on to unnecessary treatment. Phase II: 10 men had a newly detectable PSA, 9 of whom had a history of prostate cancer. Each tested negative for interfering heterophilic antibodies when their PSA test was repeated with a heterophilic antibody-blocking reagent. CONCLUSIONS: In a large cohort, we estimate the prevalence of spuriously elevated PSA values in our population to be 0.3%. No patient with a prostate cancer history was subjected to unnecessary diagnostic evaluation or treatment. On prospective evaluation of PSA conversion to low detectable levels, no patient had evidence of interfering heterophilic antibodies. When using PSA for post-treatment surveillance, it is crucial to confirm all concerning values and consider the presence of a spurious elevation in PSA if the value does not correlate with the clinical scenario.


Assuntos
Anticorpos Heterófilos/sangue , Antígeno Prostático Específico/sangue , Neoplasias da Próstata/terapia , Idoso , Reações Falso-Positivas , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias da Próstata/cirurgia , Estudos Retrospectivos
14.
Prostate Cancer Prostatic Dis ; 11(3): 264-9, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-17938644

RESUMO

Prior studies report slightly lower prostate-specific antigen (PSA) levels among obese men. To understand this effect, we investigated the association between PSA and blood HbA1c, C-peptide, leptin and adiponectin levels in African-American (AA) (n=121) and Caucasian (CA) (n=121) men. Among AA men, PSA levels decreased with increasing C-peptide levels (PSA=0.99, 0.93, 0.75 and 0.53 ng ml(-1) across quartiles of C-peptide, respectively; P(trend)=0.005). Among CA men, PSA levels decreased with increasing HbA1c (PSA=0.84, 0.73, 0.77 and 0.45 ng ml(-1) across quartiles of HbA1c, respectively; P(trend)=0.005). This may suggest that metabolic disturbances related to metabolic syndrome or diabetes affect the ability to detect early-stage prostate cancer.


Assuntos
Negro ou Afro-Americano , Peptídeo C/sangue , Hemoglobinas Glicadas/análise , Leptina/sangue , Antígeno Prostático Específico/sangue , População Branca , Adiponectina/sangue , Adulto , Idoso , Índice de Massa Corporal , Estudos de Coortes , Complicações do Diabetes/sangue , Diagnóstico Precoce , Humanos , Masculino , Síndrome Metabólica/sangue , Síndrome Metabólica/complicações , Pessoa de Meia-Idade , Neoplasias da Próstata/complicações , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/etnologia
15.
Mol Urol ; 4(3): 93-7; discussion 99, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-11062362

RESUMO

Over the past decade, the sextant biopsy technique has emerged as the standard of care in the detection of prostate cancer. This technique is easy to learn and well tolerated by patients and has a major complication rate of <1%. However, limitations in cancer detection have been appreciated, particularly a false-negative rate approaching 25%. This high failure rate has led investigators to refine biopsy techniques to improve cancer detection. Intuitively, increasing the total number of cores should improve cancer detection. However, the optimal core number has yet to be defined. Confounding factors include variability of prostate size, tumor volume, and tumor location. Currently, a new standard is emerging prescribing a minimum of eight cores, of which at least three are directed at the lateral aspect of the peripheral zone. These additional biopsies appear to enhance cancer detection by about 15%. The improved yield is most pronounced among patients with a serum prostate specific antigen concentration between 4 and 10 ng/mL and larger gland volume (>50 cc). These additional biopsies may decrease the need for repeat biopsies. In the meantime, strategies are being developed for the optimal technique of repeat biopsies among patients with persistent clinical suspicion in the setting of a prior negative biopsy. Currently, recommendations include increasing the biopsy number to a minimum of 10 cores, including sampling of the lateral peripheral and transition zones.


Assuntos
Adenocarcinoma/patologia , Biópsia por Agulha/métodos , Próstata/diagnóstico por imagem , Próstata/patologia , Neoplasias da Próstata/patologia , Adenocarcinoma/diagnóstico , Humanos , Masculino , Estadiamento de Neoplasias , Prognóstico , Antígeno Prostático Específico/sangue , Neoplasias da Próstata/diagnóstico , Reto , Resultado do Tratamento , Ultrassonografia
16.
J Urol ; 149(2): 290-4, 1993 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-8426404

RESUMO

From November 1985 to April 1990, 216 consecutive patients were treated with the vacuum constriction device. Patients were mailed an initial questionnaire (group 1) and a long-term questionnaire (group 2) at a median followup of 3 and 29 months, respectively. Of 202 available patients 161 in group 1 (75%) and 115 in group 2 (57%) responded. Regular use of the vacuum constriction device was reported by 69% group 1 and 70% group 2 patients. patient and partner satisfaction was 82% and 87% in group 1, and 84% and 89% in group 2, respectively. There were no significant differences between the groups with respect to regular use and patient or partner satisfaction (p < 0.05). Quality of erection was evaluated for hardness, length and circumference, and with satisfaction greater than 90% in both groups. Median times per month of successful intercourse were 1, 4 and 4 for the year before, during and after obtaining the vacuum constriction device in group 2. Also, 79% of the patients in group 2 reported a statistically significant increase in the frequency of intercourse per month in the first year, which was sustained beyond the first year in 77% (p < 0.01). Our results support the efficacy of the vacuum constriction device for the treatment of impotence. Overall regular use rates as well as patient and partner satisfaction appear to be high. Furthermore, excellent initial results appear durable in most patients.


Assuntos
Disfunção Erétil/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Constrição , Equipamentos e Provisões , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Ereção Peniana , Fatores de Risco , Vácuo
17.
J Urol ; 148(3): 797-801, 1992 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-1512829

RESUMO

We reviewed our results with 86 patients who had a pretreatment history of a stage T1 tumor. All patients were treated with transurethral resection of all visible tumor followed by intravesical bacillus Calmette-Guerin (BCG) and many patients received additional maintenance therapy. Local recurrences were treated with repeat transurethral resection followed by additional BCG. Median followup was 59 months, with a range of 9 to 149 months. Overall, 78 of 86 patients (91%) were free of tumor recurrence with BCG therapy. This result includes 69% of the patients who responded to the initial transurethral resection and intravesical BCG, and 22% who ceased having tumors after additional treatments for local recurrences. Only 7% of the patients had progression to stage T2 tumors after BCG therapy. Grade of the stage T1 tumor, concurrent carcinoma in situ and tumor multiplicity before BCG did not predict tumor recurrence or progression. Of patients with recurrences after BCG therapy, those with stage T1 tumors had a higher rate of progression compared to those with stage Ta tumors but the difference was not statistically significant (p = 0.086). These data clearly support the efficacy of transurethral resection plus intravesical BCG immunotherapy in the treatment of stage T1 tumors as well as in the prevention of disease progression.


Assuntos
Vacina BCG/uso terapêutico , Recidiva Local de Neoplasia/terapia , Neoplasias da Bexiga Urinária/terapia , Administração Intravesical , Vacina BCG/administração & dosagem , Terapia Combinada , Seguimentos , Humanos , Recidiva Local de Neoplasia/cirurgia , Estadiamento de Neoplasias , Neoplasias da Bexiga Urinária/patologia , Neoplasias da Bexiga Urinária/cirurgia
18.
South Med J ; 87(1): 1-6, 1994 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-8284708

RESUMO

This review summarize results of hormonal management in patients with metastatic prostate cancer in terms of both timing and amount of androgen blockade. The standard of delayed hormonal therapy resulted from data of the Veterans Administration Cooperative Urologic Research Group showing high toxicity in patients treated with estrogen therapy. Reanalysis of those data using cancer-specific deaths showed improved cancer-specific survival with early hormonal therapy. A large and growing body of clinical data also suggests a superior benefit to early hormonal therapy. The concept of total androgen (adrenal and testicular) ablation was supported by reports that show a survival advantage using a combined blockade over luteinizing hormone-releasing hormone agonist alone. A National Cancer Institute study showed particularly impressive disease-free and overall survival in a subset of patients with low volume disease and good performance status. However, caution should be exercise in view of differing Canadian and European data. This review provides guidelines for treatment, but ultimately the timing and amount of androgen deprivation must be tailored to the individual patient. Ongoing and future prospective studies hold the promise of answers to these difficult and unresolved questions.


Assuntos
Antagonistas de Androgênios/uso terapêutico , Orquiectomia , Neoplasias da Próstata/secundário , Neoplasias da Próstata/terapia , Adrenalectomia , Dietilestilbestrol/uso terapêutico , Estrogênios/uso terapêutico , Hormônio Liberador de Gonadotropina/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade
19.
J Urol ; 156(4): 1286-7, 1996 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-8808855

RESUMO

PURPOSE: We evaluated the long-term incidence of upper tract tumors in patients with primary superficial bladder cancer. MATERIALS AND METHODS: A total of 86 patients with stages Ta, T1 and Tis bladder tumors, who were entered into a prospective trial of bacillus Calmette-Guerin between 1978 and 1981, was followed for 15 years or longer. RESULTS: Of the 86 patients 18 (21%) had upper tract tumors after a median interval of 7.3 years (range 1 to 15). Tumors occurred within 5 years of followup in 6 cases, between 5 and 10 years in 7, and between 10 and 15 years in 5. The majority of cancers were invasive and 7 patients died of upper tract tumors. CONCLUSIONS: Patients with primary bladder tumors are at risk for upper urinary tract disease for up to 15 years, which suggests the need for lifelong regular upper tract monitoring in these cases.


Assuntos
Neoplasias Renais/epidemiologia , Segunda Neoplasia Primária/epidemiologia , Neoplasias Ureterais/epidemiologia , Neoplasias da Bexiga Urinária/terapia , Idoso , Feminino , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Fatores de Tempo
20.
Tech Urol ; 5(2): 108-12, 1999 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10458667

RESUMO

Ureteritis cystica is a rare, benign, proliferative disorder characterized by multiple ureteral cysts and multiple filling defects noted on contrast ureteral imaging. A unique case of bilateral ureteritis cystica coincidental with chronic, congenital, unilateral ureteropelvic junction obstruction presenting with microscopic hematuria and lower urinary tract symptoms is described. The characteristic presentation as well as the diagnostic radiographic, ureteroscopic, and histologic features of pyeloureteritis cystica are reviewed.


Assuntos
Cistos/complicações , Pelve Renal/patologia , Doenças Ureterais/complicações , Obstrução Ureteral/etiologia , Idoso , Doença Crônica , Cistos/diagnóstico , Cistos/cirurgia , Diagnóstico Diferencial , Humanos , Masculino , Nefrectomia , Doenças Ureterais/diagnóstico , Doenças Ureterais/cirurgia , Obstrução Ureteral/diagnóstico , Obstrução Ureteral/cirurgia , Ureteroscopia , Urografia
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