Cardiovascular Risk Factors and Echocardiographic Findings in a Predominantly Black Population with Rheumatoid Arthritis and Heart Failure.

Among White rheumatoid arthritis (RA) cohorts, heart failure with preserved ejection fraction (HFpEF) is the most prevalent type of heart failure (HF). We aimed to assess the type of HF affecting Black RA patients. 64 patients with RA-HF were compared to age-, sex-, and race-matched RA patients without HF. Left ventricular ejection fraction (LVEF), wall motion abnormalities, left ventricle (LV) mass, and wall thickness were reviewed. 87.3% were Black, 84.4% were women, with a mean age of 69.6 ± 1.38 (± SEM) and BMI (kg/m 2) 29.6 ± 1.07. RA-HF patients had higher rates of hypertension (HTN), chronic kidney disease, and atrial fibrillation. 66.7% had ≥3 cardiovascular risk factors compared to RA patients without HF. 2D-echocardiograms of RA-HF revealed that 62.3% had LVEF ≥50%, 37% had diastolic dysfunction, and 43.1% had wall motion abnormalities. LV mass and relative wall thickness measurements indicated LV eccentric remodeling. The odds ratio for HF was 4.7 (1.5-14.53 CI), p<0.01, among RA-HTN group and 3.5 (1.091-11.7 CI) p<0.01 among smokers. In our predominantly Black RA-HF patients, HFpEF was the most common type of HF. HTN was associated with the highest OR for HF. Eccentric hypertrophic remodeling, a known poor prognostic indicator for cardiovascular events, was found. Further studies are required to confirm our findings.

Development and external validation of a dynamic risk score for early prediction of cardiogenic shock in cardiac intensive care units using machine learning.

AIMS: Myocardial infarction and heart failure are major cardiovascular diseases that affect millions of people in the USA with morbidity and mortality being highest among patients who develop cardiogenic shock. Early recognition of cardiogenic shock allows prompt implementation of treatment measures. Our objective is to develop a new dynamic risk score, called CShock, to improve early detection of cardiogenic shock in the cardiac intensive care unit (ICU). METHODS AND RESULTS: We developed and externally validated a deep learning-based risk stratification tool, called CShock, for patients admitted into the cardiac ICU with acute decompensated heart failure and/or myocardial infarction to predict the onset of cardiogenic shock. We prepared a cardiac ICU dataset using the Medical Information Mart for Intensive Care-III database by annotating with physician-adjudicated outcomes. This dataset which consisted of 1500 patients with 204 having cardiogenic/mixed shock was then used to train CShock. The features used to train the model for CShock included patient demographics, cardiac ICU admission diagnoses, routinely measured laboratory values and vital signs, and relevant features manually extracted from echocardiogram and left heart catheterization reports. We externally validated the risk model on the New York University (NYU) Langone Health cardiac ICU database which was also annotated with physician-adjudicated outcomes. The external validation cohort consisted of 131 patients with 25 patients experiencing cardiogenic/mixed shock. CShock achieved an area under the receiver operator characteristic curve (AUROC) of 0.821 (95% CI 0.792-0.850). CShock was externally validated in the more contemporary NYU cohort and achieved an AUROC of 0.800 (95% CI 0.717-0.884), demonstrating its generalizability in other cardiac ICUs. Having an elevated heart rate is most predictive of cardiogenic shock development based on Shapley values. The other top 10 predictors are having an admission diagnosis of myocardial infarction with ST-segment elevation, having an admission diagnosis of acute decompensated heart failure, Braden Scale, Glasgow Coma Scale, blood urea nitrogen, systolic blood pressure, serum chloride, serum sodium, and arterial blood pH. CONCLUSION: The novel CShock score has the potential to provide automated detection and early warning for cardiogenic shock and improve the outcomes for millions of patients who suffer from myocardial infarction and heart failure.

"A little bit of a guidance and a little bit of group support": a qualitative study of preferences, barriers, and facilitators to participating in community-based exercise opportunities among adults living with chronic pain.

PURPOSE: To understand preferences, barriers, and facilitators to participating in community-based exercise opportunities among adults living with chronic pain. MATERIALS AND METHODS: An interpretive description methodology based on semi-structured interviews was conducted. Adults (age>18 years) living with chronic pain (pain >3 months in duration) were recruited from a multidisciplinary chronic pain clinic in Toronto, Canada. Thematic analysis was used to conceptualize interview data. RESULTS: Fifteen adults living with chronic pain (11/15 women) were interviewed. Four themes regarding preferences, barriers, and facilitators to participation in community-based exercise are described: (1) accessibility (e.g., cost, location, scheduling, and access to program information from healthcare providers); (2) intrinsic factors (e.g., pain, mental health, and motivation); (3) social factors (e.g., isolation, participation with people with similar capabilities, and safe environment); and (4) program factors (e.g., tailored to adults living with chronic pain, gentle exercise, group-based, and delivered by an instructor knowledgeable about chronic pain). CONCLUSIONS: Participation in community-based exercise opportunities among adults living with chronic pain may be influenced by accessibility, intrinsic factors, social factors, and program factors. Results provide a foundation of understanding to develop person-centered community-based exercise opportunities that are tailored to meet the preferences of this population.Implications for RehabilitationAlthough community-based exercise is commonly recommended as part of ongoing self-management of chronic pain, there is limited research exploring perspectives towards community-based exercise opportunities from the perspective of adults living with chronic pain.Adults living with chronic pain reported specific preferences, barriers, and facilitators to participating in community-based exercise opportunities, including accessibility, instrinsic factors, social factors, and program factors.Most adults living with chronic pain reported a preference for community-based exercise opportunities that: (1) are delivered by an instructor who is knowledgeable about chronic pain; (2) involve gentle exercise; (3) are group-based; and (4) include other individuals with similar physical capabilities.Healthcare providers, community-based organizations, and researchers should develop, implement, and evaluate person-centered community-based exercise opportunities for adults living with chronic pain that consider their unique preferences, barriers, and facilitators to participation.

Brief compression-only cardiopulmonary resuscitation and automated external defibrillator course for secondary school students: a multischool feasibility study.

OBJECTIVES: This study assessed the feasibility and preliminary efficacy of a 2-hour compression-only cardiopulmonary resuscitation and automated external defibrillator (CO-CPRAED) course in secondary school students. DESIGN: Prospective pre-post feasibility study. SETTING AND PARTICIPANTS: 128 students (12-15 years old) without prior basic life support (BLS) training at four secondary schools in Hong Kong. All students were followed up at 3 months after training. INTERVENTIONS: Emergency medicine-trained nurse and physicians taught the 2-hour CO-CPRAED course using the American Heart Association 'CPR in School Training Kit' programme. Students were trained in groups up to 40 students/session, with an instructor to student ratio not exceeding 1:10. To practise hands-on compressions, the manikin to student ratio was 1:1. For a simulated cardiac arrest, the manikin and AED to student ratio was 1:10. PRIMARY AND SECONDARY OUTCOMES: CPR and AED knowledge, attitude statements towards bystander CPR and AED, quality of BLS performance skills during training and at 3 months. RESULTS: Some students (46%) knew how deep to push on an adult chest when doing CO-CPR before training. The course was associated with an increase in knowledge score (pretraining 55%, post-training 93%; adjusted mean difference (MD) 38%, 95% CI 33% to 43%; p<0.001). Most students (68%) thought that CPR education in senior secondary school was essential before training. The students had a very positive attitude towards CPR; no change in the mean (SD) attitude score out of 30 over time (pretraining 27.2 (2.5), post-training 27.6 (2.7); adjusted MD 0.5, 95% CI -0.1 to 1.0; p=0.132). Most students were competent in performing BLS immediately after training (77%) and at 3 months (83%) (adjusted MD 6%, 95% CI -4% to 15%; p=0.268). CONCLUSIONS: The results demonstrate the feasibility of scaling up the number of secondary schools trained in a brief CO-CPRAED course within the local school curriculum.

Perioperative Point-of-Care Ultrasound and Transesophageal Echocardiography in Resource- Limited Settings-A Focus on Nepal and Bangladesh.

The use of point-of-care ultrasound (POCUS) and transesophageal echocardiography (TEE) in the perioperative and critical care setting is increasing worldwide. This increase has been driven by increasing educational opportunities and technologic advances. Nepal and Bangladesh are resource-limited countries where concerted efforts have been made to increase training in POCUS or TEE in the perioperative and critical care settings. This paper's focus is to present the current state of use and international efforts to improve education and skills in perioperative POCUS and TEE in Nepal and Bangladesh. The authors also examine the challenges to improving and expanding ultrasound use in the perioperative environment in resource- limited environments in general, using the Nepalese and Bangladeshi experiences as case studies. The authors have held multiple short courses in POCUS or TEE in Nepal and Bangladesh over the past several years. The authors found a high level of interest in learning POCUS and TEE skills among participants. They encountered challenges with maintaining continuing education and quality assurance for participants after the courses. They also identified barriers to incorporating ultrasound into daily practice in local hospitals. An increasing prevalence of cardiovascular disease will increase the need for diagnostic strategies for patients worldwide, including the use of POCUS and TEE, to manage patients in the perioperative and critical care settings. The courses held in Nepal and Bangladesh may serve as models to expand educational opportunities in POCUS and perioperative TEE in resource-limited settings.

Comparison of the Impact of Wikipedia, UpToDate, and a Digital Textbook on Short-Term Knowledge Acquisition Among Medical Students: Randomized Controlled Trial of Three Web-Based Resources.

BACKGROUND: Web-based resources are commonly used by medical students to supplement curricular material. Three commonly used resources are UpToDate (Wolters Kluwer Inc), digital textbooks, and Wikipedia; there are concerns, however, regarding Wikipedia's reliability and accuracy. OBJECTIVE: The aim of this study was to evaluate the impact of Wikipedia use on medical students' short-term knowledge acquisition compared with UpToDate and a digital textbook. METHODS: This was a prospective, nonblinded, three-arm randomized trial. The study was conducted from April 2014 to December 2016. Preclerkship medical students were recruited from four Canadian medical schools. Convenience sampling was used to recruit participants through word of mouth, social media, and email. Participants must have been enrolled in their first or second year of medical school at a Canadian medical school. After recruitment, participants were randomized to one of the three Web-based resources: Wikipedia, UpToDate, or a digital textbook. During testing, participants first completed a multiple-choice questionnaire (MCQ) of 25 questions emulating a Canadian medical licensing examination. During the MCQ, participants took notes on topics to research. Then, participants researched topics and took written notes using their assigned resource. They completed the same MCQ again while referencing their notes. Participants also rated the importance and availability of five factors pertinent to Web-based resources. The primary outcome measure was knowledge acquisition as measured by posttest scores. The secondary outcome measures were participants' perceptions of importance and availability of each resource factor. RESULTS: A total of 116 medical students were recruited. Analysis of variance of the MCQ scores demonstrated a significant interaction between time and group effects (P<.001, ηg2=0.03), with the Wikipedia group scoring higher on the MCQ posttest compared with the textbook group (P<.001, d=0.86). Access to hyperlinks, search functions, and open-source editing were rated significantly higher by the Wikipedia group compared with the textbook group (P<.001). Additionally, the Wikipedia group rated open access editing significantly higher than the UpToDate group; expert editing and references were rated significantly higher by the UpToDate group compared with the Wikipedia group (P<.001). CONCLUSIONS: Medical students who used Wikipedia had superior short-term knowledge acquisition compared with those who used a digital textbook. Additionally, the Wikipedia group trended toward better posttest performance compared with the UpToDate group, though this difference was not significant. There were no significant differences between the UpToDate group and the digital textbook group. This study challenges the view that Wikipedia should be discouraged among medical students, instead suggesting a potential role in medical education.

The use of an imagery mnemonic to teach the porphyrin biochemical pathway.

We designed an imagery mnemonic to help medical students and residents learn the porphyrin pathway and associated diseases. Fourth year medical students at the Icahn School of Medicine at Mount Sinai in the spring of 2014 participated. One group (n=11) received the porphyrin pathway in a lecture explaining a mnemonic, whereas a second group (n=11) was simply taught the steps of the pathway. A pre-intervention assessment before the lectures was given to assess baseline differences in knowledge of the porphyrin pathway between the groups. Immediately following the lecture, 1 week after the lecture, and 3 weeks after the lecture, the students were given quizzes to assess their knowledge. Students were aware of the week 1 quiz and were asked not to study for it. The week 3 quiz was a surprise. There were no statistically significant differences in knowledge of the pathway at baseline (p=.45), at the immediate post-intervention (p=.22), or one week post-intervention (p=.40). Three weeks after the lecture, students in the mnemonic group scored 20% higher than controls (p=.02). Students who had learned the mnemonic demonstrated better long-term retention of information than students learning by the control method. This mnemonic minimizes study time while improving long-term retention.

Dissection of immune gene networks in primary melanoma tumors critical for antitumor surveillance of patients with stage II-III resectable disease.

Patients with resected stage II-III cutaneous melanomas remain at high risk for metastasis and death. Biomarker development has been limited by the challenge of isolating high-quality RNA for transcriptome-wide profiling from formalin-fixed and paraffin-embedded (FFPE) primary tumor specimens. Using NanoString technology, RNA from 40 stage II-III FFPE primary melanomas was analyzed and a 53-immune-gene panel predictive of non-progression (area under the curve (AUC)=0.920) was defined. The signature predicted disease-specific survival (DSS P<0.001) and recurrence-free survival (RFS P<0.001). CD2, the most differentially expressed gene in the training set, also predicted non-progression (P<0.001). Using publicly available microarray data from 46 primary human melanomas (GSE15605), a coexpression module enriched for the 53-gene panel was then identified using unbiased methods. A Bayesian network of signaling pathways based on this data identified driver genes. Finally, the proposed 53-gene panel was confirmed in an independent test population of 48 patients (AUC=0.787). The gene signature was an independent predictor of non-progression (P<0.001), RFS (P<0.001), and DSS (P=0.024) in the test population. The identified driver genes are potential therapeutic targets, and the 53-gene panel should be tested for clinical application using a larger data set annotated on the basis of prospectively gathered data.

Long-term durability and dose escalation patterns in infliximab therapy for psoriasis.

BACKGROUND: Infliximab often requires dose escalation to maintain response. Studies regarding long-term durability and dose escalation patterns for psoriasis are few. OBJECTIVE: We sought to evaluate dose escalation patterns in psoriatic patients to identify factors of lack of optimal response to infliximab. METHODS: A retrospective cohort study included 93 patients (216.3 patient-years) treated with infliximab for psoriasis. Kaplan-Meier analysis assessed drug durability. RESULTS: A median infliximab dose of 5.42 mg/kg/mo (range: 2.71-10.83) for a mean of 28 months was administered. Two thirds of patients received a dose escalation. Concurrent methotrexate extended duration of therapy (by a mean ± SD of 19.5 ± 8.1 months, P = .034), including time until first dose escalation (by a mean ± SD of 12.0 ± 6.1 months, P = .037), and failure (by a mean ± SD of 20.7 ± 6.7 months, P = .034). Patients who increased the infusion frequency before increasing the dose remained on infliximab 8.4 months longer than those who first increased the dose (P = .045). Four patients experienced adverse events; 2 required discontinuation. LIMITATIONS: Psoriasis Area and Severity Index, infliximab levels, and antibody titers were not measured. CONCLUSIONS: Dose escalation optimizes durability of infliximab. The probability of maintaining response is enhanced by concomitant methotrexate and increasing the infusion frequency before increasing the dose.

Urea: a comprehensive review of the clinical literature.

INTRODUCTION: Urea is an organic compound that has been used clinically for dermatological diseases for more than a century. Urea is a potent emollient and keratolytic agent, making urea an effective monotherapy for conditions associated with dry and scaly skin. A systematic review of the literature is needed to provide clinicians with evidence-based applications of urea in the treatment of dermatological diseases. METHODS: A PubMed search was conducted using the term "urea" combined with "skin," "ichthyosis," "psoriasis," "xerosis," "emollient," "onychomycosis," "dermatitis," and "avulsion." A total of 81 publications met inclusion criteria and were evaluated. Treatment indication(s), test agents, number of subjects, treatment protocols, results, and side effects were recorded. RESULTS: Effective treatment with urea has been reported for the following conditions: ichthyosis, xerosis, atopic dermatitis/eczema, contact dermatitis, radiation induced dermatitis, psoriasis/seborrheic dermatitis, onychomycosis, tinea pedis, keratosis, pruritus, and dystrophic nails. Furthermore, urea has been used with other medications as a penetration enhancing agent. Mild irritation is the most common adverse event, proving urea to be a safe and tolerable topical drug without systemic toxicity. DISCUSSION/CONCLUSION: Urea is a safe, effective dermatologic therapy with wide-ranging clinical utility and minimal, non-systemic side effects. In order to optimize patient care, dermatologists should be well informed with regards to urea's indications and efficacy.

Practical pearls in phototherapy.

The following tips are suggested for phototherapy: (i) calibrate the unit with a radiometer every 2-4 weeks; (ii) change all bulbs at the same time every 8-10 months for regularly used machines or when the UV meter shows that the power has reached 3 or 4 mW/cm(2) ; (iii) avoid phototherapy sessions on consecutive days to prevent burn on burn; (iv) in the event of a burn, reduce the last PUVA or UVB dose by 50%, reinitiating when erythema has fully disappeared, which might take two days to two weeks; (v) nausea from oral psoralens can be avoided by taking it with a fixed amount of milk or food, taking an antiemetic with this meal prior to dosing, taking five ginger tablets 15 minutes before dosing, or dividing the dosage; (vi) to achieve 0.03% concentration of 8-methoxypsoralen for hand and foot soak PUVA, dissolve a 10-mg tablet or 1.0 cc of Oxsoralen(®) solution 1% in 3 l of water; and (vii) to achieve 0.000075% concentration of 8-methoxypsoralen for full-body soak PUVA, dissolve 60 mg 8-methoxypsoralen in 80 l of water (i.e. a bath tub).