Prostatic Neoplasms: Virgo KS

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A digest of articles written 1999 and later, on the topic "Prostatic Neoplasms," originating from Planet Earth —» Virgo KS.  Display:  All Citations ·  All Abstracts
1 Guideline Initial hormonal management of androgen-sensitive metastatic, recurrent, or progressive prostate cancer: 2006 update of an American Society of Clinical Oncology practice guideline. 2007

Loblaw DA, Virgo KS, Nam R, Somerfield MR, Ben-Josef E, Mendelson DS, Middleton R, Sharp SA, Smith TJ, Talcott J, Taplin M, Vogelzang NJ, Wade JL, Bennett CL, Scher HI, Anonymous00323. · American Society of Clinical Oncology, Alexandria, VA 22314, USA. · J Clin Oncol. · Pubmed #17404365 No free full text.

Abstract: PURPOSE: To update the 2004 American Society of Clinical Oncology (ASCO) guideline on initial hormonal management of androgen-sensitive, metastatic, recurrent, or progressive prostate cancer (PCa). METHODS: The writing committee based its recommendations on an updated systematic literature review. Recommendations were approved by the Expert Panel, the ASCO Health Services Committee, and the ASCO Board of Directors. RESULTS: Seven randomized controlled trials (four new), one systematic review, one meta-analysis (new), one Markov model, and one delta-method 95% CI procedure for active controlled trials (new) informed the guideline update. RECOMMENDATIONS: Bilateral orchiectomy or luteinizing hormone-releasing hormone agonists are recommended initial androgen-deprivation treatments (ADTs). Nonsteroidal antiandrogen monotherapy merits discussion as an alternative; steroidal antiandrogen monotherapy should not be offered. Combined androgen blockade should be considered. In metastatic or progressive PCa, immediate versus symptom-onset institution of ADT results in a moderate decrease (17%) in relative risk (RR) for PCa-specific mortality, a moderate increase (15%) in RR for non-PCa-specific mortality, and no overall survival advantage. Therefore, the Panel cannot make a strong recommendation for early ADT initiation. Prostate-specific antigen (PSA) kinetics and other metrics allow identification of populations at high risk for PCa-specific and overall mortality. Further studies must be completed to assess whether patients with adverse prognostic factors gain a survival advantage from immediate ADT. For patients electing to wait until symptoms for ADT, regular monitoring visits are indicated. For patients with recurrence, clinical trials should be considered if available. Currently, data are insufficient to support use of intermittent androgen blockade outside clinical trials

2 Guideline American Society of Clinical Oncology recommendations for the initial hormonal management of androgen-sensitive metastatic, recurrent, or progressive prostate cancer. 2004

Loblaw DA, Mendelson DS, Talcott JA, Virgo KS, Somerfield MR, Ben-Josef E, Middleton R, Porterfield H, Sharp SA, Smith TJ, Taplin ME, Vogelzang NJ, Wade JL, Bennett CL, Scher HI, Anonymous00081. · Cancer Policy and Clinical Affairs, 1900 Duke St, Suite 200, Alexandria, VA 22314, USA. · J Clin Oncol. · Pubmed #15184404 No free full text.

Abstract: PURPOSE: To develop a clinical practice guideline for the management of men with metastatic, recurrent, or progressive carcinoma of the prostate. The focus of this document is on the use, combinations, and timing of various forms of androgen deprivation therapy (ADT) for the palliation of men with androgen-sensitive disease. METHODS: An expert panel and writing committee were formed. The questions to be addressed by the guideline were determined, and a systematic review of the literature was performed, which included a search of online databases, bibliographic review, and consultation with content experts. A priori criteria were used to select studies for analysis and study authors were contacted when necessary. RESULTS: There were 10 randomized controlled trials, six systematic reviews, and one Markov model available to inform the guidelines. CONCLUSION: A full discussion between practitioner and patient should occur to determine which therapy is best for the patient. Bilateral orchiectomy or luteinizing hormone releasing hormone agonists are the recommended initial treatments. Nonsteroidal antiandrogen therapy may be discussed as an alternative, but steroidal antiandrogens should not be offered as monotherapy. Patients willing to accept the increased toxicity of combined androgen blockage for a small benefit in survival should be offered nonsteroidal antiandrogen in addition to castrate therapy. Until data from studies using modern medical diagnostic/biochemical tests and standardized follow-up schedules become available, no specific recommendations can be issued regarding the question of early versus deferred ADT. A discussion about the pros and cons of early versus deferred ADT should occur.

3 Clinical Conference The age of the urologist affects the postoperative care of prostate carcinoma patients. free! 1999

Tsai DY, Virgo KS, Colberg JW, Ornstein DK, Johnson ET, Chan D, Johnson FE. · Surgical Service, John Cochran Veterans Affairs Medical Center, St. Louis, Missouri, USA. · Cancer. · Pubmed #10506719 links to  free full text

Abstract: BACKGROUND: Strategies utilized by urologists in managing prostate carcinoma patients after radical prostatectomy vary appreciably. The reason for this is unclear. The authors investigated the effect of practitioner age on management strategies. METHODS: From among the total of 12,500 American Urological Association (AUA) members, 4467 were randomly selected to receive a custom-designed survey about their care of prostate carcinoma patients after radical prostatectomy. Respondents were asked to describe their follow-up practices for patients treated with curative intent, their motivations regarding postoperative surveillance, their methods of evaluating a postoperative increase in serum prostate specific antigen (PSA) level, and their choices of treatment for patients with recurrent prostate carcinoma. RESULTS: One thousand fifty responses were analyzed. There was a statistically significant influence of practitioner age on the management of at-risk patients, but it was quite small. The typical workup for an elevated postoperative serum PSA level also varied significantly according to practitioner age; older urologists ordered more serum prostatic acid phosphatase levels and computed tomography scans of the abdomen and pelvis, whereas younger urologists ordered more bone scans. The treatment of recurrent prostate carcinoma did not vary significantly according to urologist age. The opinions of older urologists regarding the survival benefits of postoperative surveillance were considerably different from the opinions of their younger colleagues. CONCLUSIONS: The results of this study suggest that urologist age accounts for some of the variation in the postoperative management of prostate carcinoma patients. Differences in beliefs regarding the benefits of surveillance may be partially responsible for this. Persuasive clinical research will probably be required to increase the uniformity of practice in this important area.

4 Article Surgical treatment for prostate cancer in patients with prior spinal cord injury. 2005

Gammon SR, Berni KC, Virgo KS, Johnson FE. · Department of Surgery, Saint Louis University Health Science Center, 3635 Vista Avenue, St. Louis, Missouri 63110-0250, USA. · Ann Surg Oncol. · Pubmed #15968495 No free full text.

Abstract: BACKGROUND: Limited published information is available concerning the clinical course of spinal cord-injured (SCI) patients who develop prostate carcinoma and subsequently undergo radical surgery. We hypothesized that the choice of surgical treatment and the technical conduct of radical surgery would be influenced by sequelae of SCI and that poorer outcomes would result in this population as compared with neurally intact patients. METHODS: A nationwide study was conducted of all SCI veterans receiving care at Department of Veterans Affairs Medical Centers who subsequently developed prostate carcinoma and underwent curative-intent radical operations between 1993 and 2002. Only patients with complete SCI due to trauma who met American Spinal Injury Association type A criteria were analyzed. The unpaired t-test was used to analyze data. RESULTS: Of 16,878 patients who underwent radical operations for prostate cancer, 55 had preexisting diagnostic codes for SCI. After record review, 14 met all inclusion criteria. The mean age was 57 years. All were asymptomatic with clinically organ-confined disease diagnosed by an increased prostate-specific antigen level or abnormal digital rectal examination results. Comorbid conditions were present in 9 (69%) of 13 patients. Twelve underwent radical prostatectomy, and two underwent cystoprostatectomy. There were no operative deaths, but 8 (57%) of 14 had complications (P < .05). The mean length of stay (16 days) was significantly longer (P < .05) than in neurally intact patients. CONCLUSIONS: SCI patients tended to be younger than neurally intact patients with prostate cancer, and the rate of cystoprostatectomy was high. The complication rate was significantly higher and the hospital stay was significantly longer than in neurally intact patients.

5 Article Geographic variation in patient surveillance after radical prostatectomy. 2000

Powell TM, Thompsen JP, Virgo KS, Johnson ET, Chan D, Colberg JW, Ornstein DK, Johnson FE. · Department of Surgery at Saint Louis University Health Sciences Center, MO 63110-0250, USA. · Ann Surg Oncol. · Pubmed #10864340 No free full text.

Abstract: BACKGROUND: Prostate cancer is often diagnosed early enough in its clinical course to permit radical prostatectomy to be done with curative intent, yet many patients experience tumor recurrence. Most patients receive postoperative surveillance, but the intensity of testing varies appreciably. We sought to evaluate the influence of geographic location on the variability of surveillance intensity. METHODS: Questionnaires pertaining to postoperative surveillance were mailed to 4467 members of the American Urological Association (AUA). Practice pattern variation was assessed among 24 large metropolitan statistical areas, among nine United States census regions, and by health maintenance organization penetration rate. RESULTS: Of 4467 urologists surveyed, 1416 (32%) responded and 1050 (24%) responses were evaluable. Correlation analysis showed that mean follow-up intensity across modalities surveyed was highly correlated across tumor, node, metastasis (TNM) stages and years postsurgery. We found no significant main effects attributable to metropolitan statistical area, United States (US) census region, or health maintenance organization (HMO) penetration rate for commonly used surveillance modalities: serum prostate-specific antigen (PSA), office visit, and urinalysis. For infrequently used modalities, there were minimal effects on testing intensity of US census region, metropolitan statistical area, and HMO penetration rate. Few two-way and three-way interactions were significant. CONCLUSIONS: The utilization of commonly used surveillance modalities by urologists caring for patients after radical prostatectomy is not affected by metropolitan statistical area, US census region, or HMO penetration rate.

6 Article How tumor stage affects american urologists' surveillance strategies after prostate cancer surgery. 2000

Johnson FE, Virgo KS, Ornstein DK, Johnson ET, Chan D, Colberg JW. · Department of Surgery, Saint Louis University Health Sciences Center, St. Louis, MO 63110-0250, USA. · Int J Oncol. · Pubmed #10811999 No free full text.

Abstract: The factors which influence decision-making among urologists are not well understood. We evaluated how tumor stage in patients subjected to potentially curative surgery for carcinoma of the prostate affects the self-reported follow-up strategies employed by practicing United States urologists. Standardized patient profiles and a detailed questionnaire based on these profiles were mailed to 4,467 randomly selected members of the American Urological Association (AUA), comprising 3,205 US and 1,262 non-US urologists. The effect of TNM stage on the surveillance strategies chosen by respondents was analyzed by repeated-measures ANOVA. There were 1, 050 respondents who provided evaluable data of whom 760 were from the US. The three most commonly used surveillance modalities by urologists were office visit, serum PSA level, and urinalysis. Nine of the 11 most commonly requested modalities were ordered significantly (p<0.001) more frequently with increasing TNM stage. This effect persisted through 10 years of follow-up, but the differences across stage were tiny. Fifty-five percent of US respondents do not modify their strategies at all according to the patient's TNM stage. Most American AUA members performing surveillance after potentially curative radical prostatectomy for otherwise healthy patients use the same follow-up strategies irrespective of TNM stage. These data permit the rational design of a randomized clinical trial of two alternate follow-up plans. The two trial arms would employ office visits, blood tests, and urinalyses at different frequencies based on current actual practice patterns; there would be no imaging tests in either arm.

7 Article Current followup strategies after radical prostatectomy: a survey of American Urological Association urologists. 1999

Oh J, Colberg JW, Ornstein DK, Johnson ET, Chan D, Virgo KS, Johnson FE. · Division of Urologic Surgery, Washington University School of Medicine, John Cochran Veterans Affairs Medical Center, St. Louis, Missouri, USA. · J Urol. · Pubmed #9915439 No free full text.

Abstract: PURPOSE: Followup care of men who have undergone potentially curative surgical treatment for prostate cancer varies widely among clinicians. To determine current practice patterns we mailed a custom designed questionnaire to American and nonAmerican urologists who were American Urological Association (AUA) members. MATERIALS AND METHODS: Surveys were mailed to a random sample of the approximately 12,000 AUA members, comprising 3,205 Americans and 1,262 nonAmericans. Evaluable surveys were returned by 760 American (24%) and 290 nonAmerican (23%) urologists. Our analysis is based on these 1,050 responses. RESULTS: In generally healthy patients after radical prostatectomy for stages T1 to 2NOMO and T3a to cNOMO prostate cancer the most frequently recommended followup diagnostic tests included office visit with digital rectal examination, serum prostate specific antigen (PSA) and urinalysis. Although there is appreciable variation in the frequency of use of these methods, respondents generally recommended office visit with digital rectal examination, serum PSA and urinalysis every 3 months in year 1, every 6 months in years 2 to 5 and annually thereafter. Other tests, such as serum prostatic acid phosphatase, bone scan, and abdominal and pelvic computerized tomography and magnetic resonance imaging, are rarely recommended. CONCLUSIONS: Our survey provides information regarding current followup strategies recommended by AUA urologists after radical prostatectomy for stages T1 to 2NOMO and T3a to cNOMO disease. Office visits and digital rectal examination, urinalysis and PSA measurement are the main tools that urologists currently use. Although optimal strategy remains unknown, these data permit the rational design of clinical trials of alternate followup strategies based on actual current practice to answer this important question.