Assessment of peritoneal microbial features and tumor marker levels as potential diagnostic tools for ovarian cancer

Epithelial ovarian cancer (OC) is the most deadly cancer of the female reproductive system. To date, there is no effective screening method for early detection of OC and current diagnostic armamentarium may include sonographic grading of the tumor and analyzing serum levels of tumor markers, Cancer Antigen 125 (CA-125) and Human epididymis protein 4 (HE4). Microorganisms (bacterial, archaeal, and fungal cells) residing in mucosal tissues including the gastrointestinal and urogenital tracts can be altered by different disease states, and these shifts in microbial dynamics may help to diagnose disease states. We hypothesized that the peritoneal microbial environment was altered in patients with OC and that inclusion of selected peritoneal microbial features with current clinical features into prediction analyses will improve detection accuracy of patients with OC. Blood and peritoneal fluid were collected from consented patients that had sonography confirmed adnexal masses and were being seen at SIU School of Medicine Simmons Cancer Institute. Blood was processed and serum HE4 and CA-125 were measured. Peritoneal fluid was collected at the time of surgery and processed for Next Generation Sequencing (NGS) using 16S V4 exon bacterial primers and bioinformatics analyses. We found that patients with OC had a unique peritoneal microbial profile compared to patients with a benign mass. Using ensemble modeling and machine learning pathways, we identified 18 microbial features that were highly specific to OC pathology. Prediction analyses confirmed that inclusion of microbial features with serum tumor marker levels and control features (patient age and BMI) improved diagnostic accuracy compared to currently used models. We conclude that OC pathogenesis alters the peritoneal microbial environment and that these unique microbial features are important for accurate diagnosis of OC. Our study warrants further analyses of the importance of microbial features in regards to oncological diagnostics and possible prognostic and interventional medicine.Ope

Blended Learning in Obstetrics and Gynecology Resident Education: Impact on Resident Clinical Performance

Problem Effects of residents’ blended learning on their clinical performance have rarely been reported. A blended learning pilot program was instituted at Southern Illinois University School of Medicine's Obstetrics and Gynecology program. One of the modules was chronic hypertension in pregnancy. We sought to evaluate if the resident blended learning was transferred to their clinical performance six months after the module. Intervention A review of patient charts demonstrated inadequate documentation of history, evaluation, and counseling of patients with chronic hypertension at the first prenatal visit by Obstetrics and Gynecology (OB/GYN) residents. A blended learning module on chronic hypertension in pregnancy was then provided to the residents. A retrospective chart review was then performed to assess behavioral changes in the OB/GYN residents. Context This intervention was carried out at the Department of Obstetrics and Gynecology, Southern Illinois University. All 16 OB/GYN residents were enrolled in this module as part of their educational curriculum. A query of all prenatal patients diagnosed with chronic hypertension presenting to the OB/GYN resident clinics four months prior to the implementation of the blended learning module (March 2015–June 2015) and six months after (July 20, 2015–February 2016) was performed. Data were collected from outpatient charts utilizing the electronic medical record. Data were abstracted from resident documentation at the first prenatal visit. Outcome The residents thought that the blended learning module was applicable to performance improvement in the real-world setting. Patients evaluated before ( n = 10) and after ( n = 7) the intervention were compared. After the intervention, there was an increase in assessment of baseline liver enzymes, referral for electrocardiogram, and early assessment for diabetes in the obese patients. More patients were provided a blood pressure cuff after the module (71.4% vs. 20%). Data were provided to the residents in an informal setting. Discussion during this session suggested that inconsistent use of the algorithm and incomplete documentation were reasons for the findings. Lessons Learned This study suggests that blended learning may be a viable tool to support sustained changes in the performance of OB/GYN residents. Scheduled follow-up should be employed to facilitate and ensure continued learning and behavioral changes

Physician-scientist or basic scientist? Exploring the nature of clinicians\u27 research engagement

Theoretical understanding of what motivates clinician researchers has met with some success in launching research careers, but it does not account for professional identification as a factor determining sustained research engagement over the long-term. Deeper understanding of clinicians\u27 research-related motivation may better foster their sustained research engagement post-training and, by extension, the advancement of medicine and health outcomes. This study used an integrated theoretical framework (Social Cognitive Career Theory and Professional Identity Formation) and appreciative inquiry to explore the interplay of professional identification and research context in shaping post-training research success narratives. To foreground professional identification, 19 research-active clinicians and 17 basic scientists served as interviewees. A multi-institutional, multi-national design was used to explore how contextual factors shape external valuation of research success. The findings suggest that research-active clinicians do not identify as the career scientists implied by the modern physician-scientist construct and the goal of many clinician research-training programs. Their primary identification as care providers shapes their definition of research success around extending their clinical impact; institutional expectations and prevailing healthcare concerns that value this aim facilitate their sustained research engagement. Integrated developmental and organizational interventions adaptive to research context and conducive to a wider range of medical inquiry may better leverage clinicians\u27 direct involvement in patient care and advance progress toward human health and well-being