Interprofessional education day - an evaluation of an introductory experience for first-year students.

Interprofessional health care teams have been shown to improve patient safety and reduce medical errors, among other benefits. Introducing interprofessional concepts to students in full day events is an established model that allows students to learn together. Our group developed an academic day for first-year students devoted to an introductory interprofessional education (IPE) experience, 'IPE Day'. In total, 438 students representing medicine, dentistry, pharmacy and optometry gathered together, along with 25 facilitators, for IPE Day. Following the day's program, students completed the evaluation consisting of the Interprofessional Collaborative Competencies Attainment Survey and open-ended questions. Narrative responses were analyzed for content and coded using the Canadian Interprofessional Health Collaborative competency domains. Three hundred and eight evaluations were completed. Students reported increased self-ratings of competency across all 20 items (p < 0.05). Their comments were organized into the six domains: interprofessional communication, collaborative leadership, role clarification, patient-centred care, conflict resolution, and team functioning. Based on these findings, we suggest that this IPE activity may be useful for improving learner perceptions about their interprofessional collaborative practice competence.

Catheter-Induced Postextrasystolic Potentiation in the Assessment of Severity of Low-Gradient Aortic Valve Stenosis.

BACKGROUND: Deciphering which patients with low-gradient aortic valve disease have severe stenosis can be difficult. We aimed to correlate the postextrasystolic potentiation (PESP) with dobutamine stress echocardiography and multidetector computed tomography in patients with low-gradient aortic valve stenosis. METHODS: Patients with an aortic valve area ≤1 cm2 and a mean gradient <40 mm Hg were included. Aortic valve stenosis severity was assessed by a core lab with dobutamine stress echocardiography, followed by a multidetector computed tomography aortic valve score if indeterminate. A premature ventricular contraction was induced by intentional catheter contact with the myocardium within the left ventricle. PESP was calculated as a percent change of pre-to-post mean gradient. Multidetector computed tomography was used to measure the aortic valve calcification score, and subsequently, aortic valve calcification density. RESULTS: Twenty-eight patients (age, 77±10 years; 19 female) were included. Dobutamine stress echocardiography increased mean gradient from baseline of 25±7 mm Hg to 36±11 mm Hg; pre-premature ventricular contraction mean gradient was 25±7 mm Hg and increased to post-premature ventricular contraction mean gradient of 32±10 mm Hg, representing a PESP of 24±11%. A ≥20% in PESP resulted in 100% sensitivity, 77% specificity, 83% positive predictive value, and 100% negative predictive value for diagnosing severe aortic valve stenosis. There was a significant correlation between PESP and projected aortic valve area and aortic valve calcification density (R=-0.64, P=0.0003; R=0.057, P=0.014, respectively). CONCLUSIONS: In patients with low-gradient aortic valve stenosis, catheter-induced premature ventricular contractions during cardiac catheterization causing ≥20% PESP has a 100% sensitivity for severe aortic valve stenosis. Validation of this 20% cutoff in larger groups with correlation to clinical end points is required.

Social deviance activates the brain's error-monitoring system.

Social psychologists have long noted the tendency for human behavior to conform to social group norms. This study examined whether feedback indicating that participants had deviated from group norms would elicit a neural signal previously shown to be elicited by errors and monetary losses. While electroencephalograms were recorded, participants (N = 30) rated the attractiveness of 120 faces and received feedback giving the purported average rating made by a group of peers. The feedback was manipulated so that group ratings either were the same as a participant's rating or deviated by 1, 2, or 3 points. Feedback indicating deviance from the group norm elicited a feedback-related negativity, a brainwave signal known to be elicited by objective performance errors and losses. The results imply that the brain treats deviance from social norms as an error.

Refractory acquired thrombotic thrombocytopenic purpura in a patient with sickle cell trait successfully treated with caplacizumab.

Methods: We report a case of a 20-year-old Nigerian male who presented with acquired thrombotic thrombocytopenic purpura (aTTP) and sickle cell trait. The coexistence of published cases of TTP and sickle cell hemoglobinopathies is rare.Results: Despite the initial treatment with plasma exchange and glucocorticoids, our patient relapsed and also required caplacizumab which resulted in successful remission.Discussion: We conclude by reviewing the cases of TTP in patients with sickle cell hemoglobinopathies and review how vaso-occlusive crises with multiorgan injury can mimic TTP.Conclusion: Ours is the first published case of aTTP with confirmed ADAMTS13 autoantibodies in a patient with a sickle cell hemoglobinopathy and contributes to the literature on the successful use of caplacizumab in clinical practice.

Gemella morbillorum endocarditis and osteomyelitis in a patient with ankylosing spondylitis.

We report a rare case of Gemella morbillorum endocarditis of the native aortic and mitral valves, and native vertebral osteomyelitis, in a 49-year-old male with HLA-B27 negative ankylosing spondylitis (AKS). G. morbillorum is a rare cause of endocarditis; the incidence of which is unknown. AKS may predispose patients to endocarditis through chronic valvulitis. G. morbillorum bacteremia in patients with AKS should prompt consideration of infective endocarditis and a search for possible portals of entry.

Les auteurs déclarent un rare cas d'endocardite à Gemella morbillorum des valves aortiques et mitrales naturelles et une ostéomyélite des vertèbres naturelles chez un homme de 49 ans atteint de spondylite ankylosante négative au HLA-B27 (SAK). Le G. morbillorum est une rare cause d'endocardite dont on ne connaît pas l'incidence. La SAK peut prédisposer à l'endocardite par une valvulite chronique. La bactériémie à G. morbillorum chez des patients atteints de SAK devrait inciter à envisager rapidement une endocardite infectieuse et à rechercher les voies d'entrée possibles.

Do Medical Students Receive Adequate Otolaryngology Training? A Canadian Perspective.

OBJECTIVES: Otolaryngology-head and neck surgery (OHNS) training has been found to be underrepresented in medical school curricula. The study aimed to assess (i) students' clinical OHNS exposure, (ii) their confidence managing OHNS conditions, and (iii) the correlation between OHNS exposure and confidence managing OHNS conditions. METHODS: Fourth-year medical students at two Canadian Universities completed a survey assessing baseline characteristics, OHNS training, and confidence managing OHNS conditions. RESULTS: Of 87 returned surveys, 46 students had no clinical OHNS exposure, while 29 felt there was adequate OHNS exposure. The majority of students lacked confidence recognizing conditions requiring emergent referral. Students with greater OHNS training had greater confidence managing OHNS conditions (r = 0.267, P = .012). CONCLUSION: The majority of medical students have minimal OHNS exposure. Students with greater OHNS exposure have greater confidence managing OHNS conditions. A review of Canadian medical school curricula is warranted to ensure adequate OHNS exposure.

Characteristics and usefulness of unintended premature ventricular contraction during invasive assessment of aortic stenosis.

BACKGROUND: Postextrasystolic potentiation (PESP)-associated augmentation in left ventricular-aorta pressure gradient (LVAoG) observed after incidental premature ventricular contraction (PVC) during resting echocardiography is similar to dobutamine stress echocardiography (DSE)-associated augmentation in LVAoG in patients with low-flow, low-gradient (LF-LG) aortic stenosis (AS). What is not known is whether a similar relationship exists when unintended PVC causes PESP during cardiac catheterization in patients with AS. METHODS: We retrospectively reviewed all catheterizations performed for patients with at least moderate AS who had LVAoG assessment. Univariate and multivariate analyses were conducted to determine the predictors of pre- and post-PVC mean LVAoG ≥ 40 mmHg. RESULTS: Between September 2015 to September 2017, of 140 individuals undergoing cardiac catheterization, 34 met study criteria. Mean pre-PVC gradient was 38.9 ± 22.8 mmHg. All patients exhibited PESP-associated augmentation of LVAoG by an average of 28 ± 12%. In multivariate analysis, the only significant predictor of post-PVC mean LVAoG ≥ 40 mmHg was preserved LV function (OR 6.81; 95% CI 1.41-32.82, p = 0.02). Inability to generate ≥ 40 mmHg of mean LVAoG post-PVC had 100% specificity for nonsevere AS in our observational cohort. CONCLUSIONS: Unintended but interpretable PVCs occurred in one in four patients with AS undergoing cardiac catheterization with measurable hemodynamics. All of our patients with PVCs, regardless of underlying LVEF, exhibited PESP-associated augmentation of LVAoG. Our exploratory analysis suggests that inability to generate ≥40 mmHg of mean LVAoG post-PVC is highly specific for nonsevere AS.

Severe Hyponatremia and Immune Nephritis Following an Initial Infusion of Nivolumab.

Anti-programmed cell death-1 (PD-1) antibodies pembrolizumab and nivolumab are becoming increasingly important in the treatment of melanoma and non-small cell lung cancer. These agents are known to induce many immune-related adverse events, but rapid-onset nephritis and immune-related hyponatremia have not been described to date. We describe the case of an adult patient who developed severe hyponatremia and rapid-onset nephritis following the first infusion of nivolumab for metastatic melanoma.