Faculty Bibliography

Simulation in obstetrics and gynecology (OBGYN) training captures a range of interpersonal, cognitive, and technical skills. However, trainee perspectives on simulation-based assessment remain unexplored. After an observed structured clinical examination (OSCE) simulation hybrid exam, two focus groups of residents were conducted. Analysis grounded in a thematic coding guided the qualitative research process. Responses suggest a valuation of cognitive and technical skills over interpersonal skills. Realism was seen as critical and residents perceived the assessment as more valuable for the educator than the learner. Feedback was highly valued. Resident perspectives on this exam give insight into their perceptions of simulation-based assessment as well as their conceptions of their own learning through simulations.

Although there are many analytical methods available for estimation of metformin in biological samples and pharmaceutical preparations, to our knowledge there is no specific spectrophotometric method using its derivatization by the Mannich reaction. A simple spectrophotometric method was developed by studying the UV evolution of the complex obtained between metformin, formaldehyde and uranine using the Mannich reaction. Measurements of metformin were achieved at 437 nm using UV-visible spectroscopy. To assess the validity of the method in a clinical situation the extraction was adapted to extract metformin from human urine that had been tested by our method. The spectrometric correlation coefficient (R²) was found to be 0.98 over metformin concentrations of 5- 30 mug/mL. This range includes the clinical levels reached during treatment. The method was validated for linearity, accuracy, and precision. The within-assay limit of detection and quantification (sensitivity) were found to be 0.001 mug/mL. This method for quantification of metformin is simple, precise and accurate. It is suitable as an alternative to existing clinical methods and for the analysis of metformin in pharmacodynamic studies of urinary excretion as well as pharmaceutical formulations and in vitro dissolution studies

Their outpatient notes stack up well, according to this small, retrospective review. Scribes' notes were rated slightly higher in overall quality than physicians' notes-- at least for certain patient encounters.

OPINION STATEMENT/UNASSIGNED:The dilemma of the patient with both AS and LVOTO is now commonly encountered in clinical practice; indeed, physicians must be aware of the complex interaction and coexistent nature of both diseases, especially as both HOCM and TAVR have increased in awareness and prevalence. Importantly, the clinician must be aware of the complex interplay hemodynamically, with the two diseases confusing the TTE imaging and potentially affecting each other anatomically and clinically. There is no set guideline on how to approach this from a surgical or percutaneous approach, but we have outlined a set of recommendations which should serve the clinician and patient well. The three cases that are presented illustrate that methodical diagnosis in addition to the order of treatment do indeed matter. In the first case, there was AS and an underestimated LVOT gradient that was also present. Once the AS was corrected, the true LVOT gradient potential was evidenced and she decompensated, likely because there was a rapid decrease in afterload. Patients with concomitant LVOTO are not able to adjust quickly to the hemodynamic changes created by the rapid decline in afterload, as, for example, in HOCM patients who receive nitroglycerin. The second case demonstrated that when the LVOTO was severe and the AS nonsignificant (mild or moderate), the patient was able to live without symptoms for several years after successful alcohol septal ablation (ASA). She eventually needed an aortic valve and mitral valve replacement but that was postponed for several years until the AS became more significant, and the surgical risk was lowered by the elimination of the need for concomitant myectomy. In the last case, the patient was able to have both an ASA and TAVR within 3 months of each other without hemodynamic compromise. Indeed, this latter therapy sequence may be the best way to treat patients with both diseases in the future, as both ASA and TAVR continue to evolve into intermediate and lower-risk patient populations and the safety of ASA continues to be evident.

Geosocial-networking smartphone applications such as Grindr can help men who have sex with men (MSM) meet sexual partners. Given the high incidence of HIV in the Deep South, the purpose of our study was to assess HIV risk and preexposure prophylaxis (PrEP) awareness and use in a sample of HIV-uninfected, Grindr-using MSM residing in Atlanta, Georgia (n = 84). Most (n = 71; 84.6%) reported being somewhat or very concerned about becoming HIV infected. Most (n = 74; 88.1%) had been tested for HIV in their lifetimes. About three fourths (n = 65; 77.4%) were aware of PrEP, but only 11.9% currently used the medication. HIV continues to disproportionately impact MSM and represents a significant source of concern. As the number of new infections continues to rise, it is important to decrease risks associated with acquisition and transmission of HIV by increasing rates of HIV testing and the use of biobehavioral interventions such as PrEP.

CONTEXT: HIV patients are at an increased risk for cardiometabolic disease secondary to depot-specific alterations in adipose function, but mechanisms remain poorly understood. OBJECTIVE: The endoribonuclease Dicer has been linked to the modulation of brown and white adipocyte differentiation. We previously demonstrated that Dicer knockout mice undergo transformation of brown adipose tissue to white adipose tissue and develop a lipodystrophic phenotype. We hypothesized reduced Dicer and brown adipose tissue gene expression from nonlipomatous sc fat among HIV patients with a lipodystrophic phenotype. DESIGN: Eighteen HIV (nine with and without lipodystrophic changes in fat distribution, characterized by excess dorsocervical adipose tissue [DCAT]) and nine non-HIV subjects underwent punch biopsy of abdominal sc fat to determine expression of Dicer and other adipose-related genes. RESULTS: HIV subjects with long-duration antiretroviral use demonstrated excess DCAT vs non-HIV subjects (9.8 +/- 1.0 vs 6.6 +/- 0.8 cm(2), P = .02) with similar body mass index. Dicer expression was decreased in abdominal sc fat of HIV vs non-HIV (4.88 [1.91, 11.93] vs 17.69 [10.72, 47.91], P = .01), as were PPARalpha, ZIC1, PRDM16, DIO2, and HSP60 (all P