Recent Publications by CFE Educators

BACKGROUND AND OBJECTIVES

Pathological examination occasionally reveals incidental central lymph nodes metastasis (iLNM) after thyroidectomy for patients with papillary thyroid cancer (PTC) who did not undergo compartment-orientated lymphadenectomy. We aimed to investigate the risk of recurrence for patients with iLNM.

METHODS

We conducted a retrospective review of all patients undergoing total thyroidectomy for PTC (January 2000 to January 2010). Patients with distant metastases, central- or lateral neck dissection and pre-operative suspicious lymph nodes (by ultrasound or clinical examination) were excluded. The association between iLNM and recurrent disease was investigated using Kaplan-Meier survival estimates and Cox proportional hazards analysis.

RESULTS

225/1000 patients had incidental nodes after total thyroidectomy for PTC. 183 were node-negative and 42 had iLNM. Mean age was 46 years and 201 (89%) were women. Mean number of resected nodes was 2.3. Disease recurred in 8/183 (4.4%) of patients with N0 versus 7/42 (17%) with iLNM. After adjusting for other factors, iLNM was independently associated with recurrent disease (hazard ratio = 4.01 [95% CI 1.21-13.3]).

CONCLUSIONS

Positive incidental lymph nodes are independently associated with recurrent disease in patients with PTC. These patients should therefore be monitored more carefully.

Hemodynamic forces regulate vascular functions. Disturbed flow (DF) occurs in arterial bifurcations and curvatures, activates endothelial cells (ECs), and results in vascular inflammation and ultimately atherosclerosis. However, how DF alters EC metabolism, and whether resulting metabolic changes induce EC activation, is unknown. Using transcriptomics and bioenergetic analysis, we discovered that DF induces glycolysis and reduces mitochondrial respiratory capacity in human aortic ECs. DF-induced metabolic reprogramming required hypoxia inducible factor-1α (), downstream of NAD(P)H oxidase-4 ()-derived reactive oxygen species (ROS). increased glycolytic enzymes and pyruvate dehydrogenase kinase-1 (), which reduces mitochondrial respiratory capacity. Swine aortic arch endothelia exhibited elevated ROS, , , and glycolytic enzyme and expression, suggesting that DF leads to metabolic reprogramming in vivo. Inhibition of glycolysis reduced inflammation suggesting a causal relationship between flow-induced metabolic changes and EC activation. These findings highlight a previously uncharacterized role for flow-induced metabolic reprogramming and inflammation in ECs.

PURPOSE

The primary objective of this study was to report what patients considered to be the most important symptoms, functions and impacts of urethral stricture disease. Patient and physician perspectives were correlated.

MATERIALS AND METHODS

Patients were involved at each step of patient reported outcome measure development. We performed 1) qualitative semistructured concept elicitation interviews, 2) cognitive interviews, 3) prioritization interviews and 4) item prioritization by patients in regard to bother. A total of 22 reconstructive urologists ranked the items in regard to making treatment decisions.

RESULTS

Patient qualitative interviews were done until no new information was gained (16 interviews) to reach concept saturation. A total of 40 items were generated from interview data. Urinary items predominated over sexually related content (34 vs 6). A review of published patient reported outcome measures revealed 10 legacy items that were not derived from the qualitative interviews. Two iterative rounds of cognitive interviews were performed in a separate cohort of 5 and 4 patients, respectively, to assess patient comprehension. Item prioritization was done in a separate cohort of 20 patients. The final instrument for validation included 31 items, of which 27 were new and 4 were legacy items. For the top 15 ranked items there was 53% agreement between patients and physicians. Patients were most worried about inability to urinate and urinary dribbling.

CONCLUSIONS

We found multiple patient generated concepts related to urinary and sexual impact, function and symptoms. Patients and clinicians had a low agreement rate regarding item importance.

BACKGROUND

Current guidelines recommend blood cultures in skin and soft-tissue infection (SSTI) patients only with signs of systemic toxicity and wound cultures for severe purulent infections. Our objectives were to determine: 1) blood and wound culture yields in patients admitted with SSTIs; 2) whether injection drug users (IDUs) and febrile patients had higher blood culture yields; and 3) whether blood and wound cultures grew organisms sensitive to typical SSTI empiric antibiotics.

METHODS

We prospectively enrolled adult patients admitted from the ED with SSTIs at an urban hospital. We recorded patient characteristics, including IDU, comorbidities and temperatures, and followed admitted patients throughout their hospital course.

RESULTS

Of 734 SSTI patients enrolled, 246 (33.5%) were admitted. Of 86 (35.0%) patients who had blood cultures, six had positive cultures (yield=7.0%; 95% confidence intervals [CIs] 3.2-14.4); 4 were methicillin sensitive Staphylococcus aureus (MSSA) and 2 were methicillin resistant (MRSA). Of 29 febrile patients, 1 had a positive culture (yield=3.5%; 95% CI 0.6-17.2). Of 101 admitted IDU patients, 46 (46%) received blood cultures, and 4 had positive cultures (yield=8.7%; 95% CI 3.4-20.3). Of 89 patients with purulent wounds, 44 (49.4%) patients had ED wound cultures. Thirteen had positive cultures (yield=29.6%; 95% CI 18.2-44.2%). Most were MRSA, MSSA, and group A Streptococcus species - all sensitive to Vancomycin.

CONCLUSIONS

Febrile and IDU patients had low yields of blood cultures similar to yields in non-IDU and afebrile patients. All blood and wound culture species were adequately covered by currently recommended empiric antibiotic regimens.

The concept of entrustable professional activities (EPAs) reframes the approach to assessment in competency-based medical education. Key to this concept is the linking of assessment to decision making about entrusting learners with clinical responsibilities. Based on recent literature and the authors' experiences with implementing EPAs, this article provides practical recommendations for how to implement EPAs for assessment and entrustment decisions in the workplace. Tips for supervising clinicians include talking to learners about trust, using EPA descriptions to guide learning and teaching, providing learners with greater ad hoc responsibilities, using EPAs to identify/create opportunities for assessment and feedback, including case-based discussions and acknowledging gut feelings about learner readiness for more autonomy. Tips for curriculum leaders entail enabling the trust development, applying trust decisions at all levels of the supervision scale, employing all available information sources for entrustment, empowering learner ownership of the assessment process and using technology for learner tracking and program evaluation.