BackgroundAn observed decrease of physician scientists in medical practice has generated much recent interest in increasing the exposure of research programs in medical school. The aim of this study was to review the experience and attitudes regarding research by medical students in Canada.MethodsAn anonymous, cross-sectional, self-report questionnaire was administered to second and fourth year students in three medical schools in Ontario between February and May of 2005. Questions were primarily closed-ended and consisted of Likert scales. Descriptive and correlative statistics were used to analyze the responses between students of different years and previous research experience.ResultsThere was a 47% (327/699) overall response rate to the questionnaire. Despite 87% of respondents reporting that they had been involved in some degree of research prior to medical school, 43% report that they have not been significantly involved in research activity during medical school and 24% had no interest in any participation. There were significant differences in the attitudes towards research endeavors during medical school between students in their fourth year compared to second year. The greatest barriers to involvement in research in medical school appear to be time, availability of research mentors, formal teaching of research methodology and the perception that the student would not receive appropriate acknowledgement for work put towards a research project.ConclusionThe results of this self-report survey outline the significant differences in attitudes towards mandatory research as a component of critical inquiry and scholarship in the undergraduate curriculum in Ontario medical schools.

No abstract

a v a i l a b l e a t w w w . s c i e n c e d i r e c t . c o m j o u r n a l h o m e p a g e : w w w . e u r o p e a n u r o l o g y . c o m Outcome measurements and statistical analysis: The Medical Outcomes Studies 36-item Short Form and the University of California, Los Angeles, Prostate Cancer Index characterized physical function, mental health, and sexual, urinary, and bowel function and bother. Repeated measures mixed-model analysis assessed change in HRQOL by treatment over time, and logistic regression was used to measure the likelihood of a clinically significant decline in HRQOL. Results and limitations: Among 3294 men, 1139 (34%) underwent nerve-sparing radical prostatectomy (NSRP), 860 (26%) underwent non-NSRP, 684 (21%) underwent brachytherapy, 386 (12%) underwent external beam radiotherapy, 161 (5%) underwent primary androgen deprivation therapy, and 64 (2%) pursued watchful waiting/active surveillance. Median follow-up was 74 mo (interquartile range: 50-102). Most treatments resulted in early declines in HRQOL, with some recovery over the next 1-2 yr and a plateau in scores thereafter. Surgery had the largest impact on sexual function and bother and on urinary function, radiation had the strongest effect on bowel function, and androgen deprivation therapy had the strongest effect on physical function. The main limitation was attrition among the cohort. Conclusions: Although most men experience initial declines in HRQOL in the first 2 yr after treatment, there is little change from 3 to 10 yr and most differences between treatments attenuated over time. Patient summary: Various treatments for prostate cancer result in a distinct constellation of adverse effects on health-related quality of life, which may have a long-term impact. These findings are helpful regarding shared decision making over choice of primary treatment. Article info

No abstract

Objective• To evaluate the prevalence of depression, anxiety and distress among active surveillance (AS) and radical prostatectomy (RP) patients.• To evaluate the impact of these symptoms at baseline on urinary and sexual quality of life at follow-up. Patients and Methods• Patients managed with AS or RP who completed validated questionnaires assessing levels of depression, anxiety, distress and urinary (UF) and sexual function (SF) and bother comprised the final analytic cohort.• These measures were completed at baseline, within 1 year, and between 1 and 3 years from baseline.• Mixed model repeated measures analysis was used to examine associations between mental health at baseline and sexual and urinary outcomes in a subset of RP patients with complete follow-up. Results• Among 679 men who comprised the study cohort, baseline prevalence of moderate or higher levels of depression or anxiety were low (<5%), while levels of mild depression or anxiety ranged from 3-16% over time.• Baseline levels of elevated distress ranged from 8-20%.• Among men who provided data at baseline and follow-up, there were no significant differences between AS and RP patients in the proportion of men with elevated levels of depression, anxiety, or distress.• Among 177 men who underwent RP and had complete follow-up moderate or higher levels of depression or anxiety appeared to be associated with post-treatment SF and bother, while elevated levels of distress were associated with post-treatment UF. Conclusion• Moderate or higher levels of depression or anxiety were low in men with localised prostate cancer but were associated with sexual outcomes, while elevated distress was associated with urinary outcomes.• Greater attention should be paid to mental health symptoms among men with prostate cancer, as these symptoms may be associated with quality of life outcomes.

Prostate cancer exhibits intra-tumoral heterogeneity that we hypothesize to be the leading confounding factor contributing to the underperformance of the current pre-treatment clinicalpathological and genomic assessment. These limitations impose an urgent need to develop better computational tools to identify men with low risk of prostate cancer versus others that may be at risk for developing metastatic cancer. The patient stratification will directly translate to patient treatments, wherein decisions regarding active surveillance or intensified therapy are made. Multiparametric MRI (mpMRI) provides the platform to investigate tumor heterogeneity by mapping the individual tumor habitats. We hypothesize that quantitative assessment (radiomics) of these habitats results in distinct combinations of descriptors that reveal regions with different physiologies and phenotypes. Radiogenomics, a discipline connecting tumor morphology described by radiomic and its genome described by the genomic data, has the potential to derive "radio phenotypes" that both correlate to and complement existing validated genomic risk stratification biomarkers. In this article we first describe the radiomic pipeline, tailored for analysis of prostate mpMRI, and in the process we introduce our particular implementations of radiomics modules. We also summarize the efforts in the radiomics field related to prostate cancer diagnosis and assessment of aggressiveness. Finally, we describe our results from radiogenomic analysis, based on mpMRI-Ultrasound (MRI-US) biopsies and discuss the potential of future applications of this technique. The mpMRI radiomics data indicate that the platform would significantly improve the biopsy targeting of prostate habitats through better recognition of indolent versus aggressive disease, thereby facilitating a more personalized approach to prostate cancer management. The expectation to non-invasively identify habitats with high probability of housing Author Manuscript aggressive cancers would result in directed biopsies that are more informative and actionable. Conversely, providing evidence for lack of disease would reduce the incidence of non-informative biopsies. In radiotherapy of prostate cancer, dose escalation has been shown to reduce biochemical failure. Dose escalation only to determinate prostate habitats has the potential to improve tumor control with less toxicity than when the entire prostate is dose escalated. HHS Public Access

Context: Despite excellent cancer control with the treatment of localized prostate cancer (PCa), some men will experience a recurrence of disease. The optimal management of recurrent disease remains uncertain. Objective: To systematically review recent literature regarding management of biochemical recurrence after primary treatment for localized PCa. Evidence acquisition: A comprehensive systematic review of the literature was performed from 2000 to 2012 to identify articles pertaining to management after recurrent PCa. Search terms included prostate cancer recurrence, salvage therapy, radiorecurrent prostate cancer, post HIFU, post cryoablation, postradiation, and postprostatectomy salvage. Studies were selected according to Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) guidelines and required to provide a comprehensive description of primary and secondary treatments along with outcomes. Evidence synthesis: The data from 32 original publications were reviewed. The most common option for local salvage therapy after radical prostatectomy (RP) was radiation. Options for local salvage therapy after primary radiation included RP, brachytherapy, and cryotherapy. Different definitions of recurrence and risk profiles among patients make comparative assessment among salvage treatment modalities difficult. Triggers for intervention and factors predicting response to salvage therapy vary. Conclusions: Radiation therapy (RT) after RP can provide durable prostate-specific antigen (PSA) responses in a sizeable percentage of men, especially when given early (ie, PSA <1 ng/ml). Though a few studies suggest improvements in mortality, prospective randomized trials are needed and underway. The role of salvage treatment after RT is less clear.

A B S T R A C T PurposeThe potential association between androgen deprivation therapy (ADT) and cardiovascular mortality (CVM) remains controversial. This study assessed mortality outcomes in a large national registry to further elucidate the association between treatment selection and cause of mortality. Patients and MethodsA total of 7,248 men in the CaPSURE registry were analyzed. Treatment was categorized as local only, primary ADT monotherapy, local treatment plus ADT, and watchful waiting/active surveillance (WW/AS). Competing hazards survival analysis was performed for prostate cancer-specific mortality (PCSM), CVM, and all-cause mortality. A propensity score-adjusted and a propensitymatched analysis were undertaken to adjust for imbalances in covariates among men receiving various treatments. ResultsPatients treated with ADT or WW/AS had a higher likelihood of PCSM than those treated with local therapy alone. Patients treated with primary ADT had an almost two-fold greater likelihood of CVM (HR, 1.94; 95% CI, 1.29 to 2.97) than those treated with local therapy alone; however, patients treated with WW/AS had a greater than two-fold increased risk of CVM (HR, 2.46; 95% CI, 1.53 to 3.95). A propensity-matching algorithm in a subset of 1,391 patients was unable to find a significant difference in CVM between those who did or did not receive ADT. ConclusionPatients matched on propensity to receive ADT did not show an association between ADT and CVM. This suggests that potential unmeasured variables affecting treatment selection may confound the relationship between ADT use and cardiovascular risk. However, an association may yet exist, because the propensity score could not include all known risk factors for CVM.