Background
Whether the genomic rearrangement TMPRSS2:ERG has prognostic value in prostate cancer is unclear.
Methods
Among men with prostate cancer in the prospective Physicians’ Health and Health Professionals Follow-Up Studies, we identified rearrangement status by immunohistochemical assessment of ERG protein expression. We used Cox models to examine associations of ERG overexpression with biochemical recurrence and lethal disease (distant metastases or cancer-specific mortality). In a meta-analysis including 47 additional studies, we used random effects models to estimate associations between rearrangement status and outcomes.
Results
The cohort consisted of 1,180 men treated with radical prostatectomy between 1983 and 2005. During a median follow-up of 12.6 years, 266 men experienced recurrence, and 85 men developed lethal disease. We found no significant association between ERG overexpression and biochemical recurrence (HR: 0.99; 95% CI: 0.78-1.26) or lethal disease (HR: 0.93; 95% CI: 0.61-1.43). The meta-analysis of prostatectomy series included 5,074 men followed for biochemical recurrence (1,623 events), and 2,049 men followed for lethal disease (131 events). TMPRSS2:ERG was associated with stage at diagnosis (RR≥T3 vs. T2: 1.23; 95% CI: 1.16-1.30) but not with biochemical recurrence (RR: 1.00; 95% CI: 0.86-1.17) or lethal disease (RR: 0.99; 95% CI: 0.47-2.09).
Conclusions
These results suggest that TMPRSS2:ERG, or ERG overexpression, is associated with tumor stage but does not strongly predict recurrence or mortality among men treated with radical prostatectomy.
Impact
This is the largest prospective cohort study to examine associations of ERG overexpression and lethal prostate cancer among men treated with radical prostatectomy.
The purpose of this study was to examine institutional trends in the volume of clavicle fractures in children and adolescents. Medical records were retrospectively reviewed to identify patients aged 10-18 years treated for a clavicle fracture between 1999 and 2011 at a single tertiary-care pediatric hospital. There were significant increases in the number of clavicle fractures seen annually, of midshaft clavicle fractures, and of midshaft clavicle fractures treated operatively. The percentage of midshaft clavicle fractures treated with fixation also increased significantly. The volumes of clavicle fractures and midshaft clavicle fractures treated operatively appear to be increasing. Despite a lack of evidence-based support, the frequency of fixation of midshaft clavicle fractures appear to be increasing in the pediatric population.
A variety of strategies are utilized for management of pediatric diaphyseal femur fractures, depending chiefly on the age of the patient. Other factors that can influence the selection of a technique-which range from skeletal traction with spica casting to immediate spica casting, flexible intramedullary nailing, rigid intramedullary rodding, or plate fixation-are weight, fracture severity, associated injuries, and underlying medical or musculoskeletal conditions. The available evidence regarding technique, outcomes, and complications of the aforementioned treatment options remains largely insufficient, and, at times, conflicting, which contributes to the challenges in management decisions. Considerable controversy has arisen over several topics, particularly the optimal treatment for patients aged 5 to 12 years and accepted standards of treatment. This review is designed to provide perspective for some of the most recent influential literature on pediatric diaphyseal femur fracture treatment in light of established evidence and evolving controversies.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.