The impact of imprecise case definitions in electronic health record research: a melanoma case-study from the Million Veteran Program.

Cases for a disease can be defined broadly using diagnostic codes, or narrowly using gold-standard confirmation that often is not available in large administrative datasets. These different definitions can have significant impacts on the results and conclusions of studies. We conducted this study to assess how using melanoma phecodes versus histologic confirmation for invasive or in situ melanoma impacts the results of a genome-wide association study (GWAS) using the Million Veteran Program.

No Increased Risk of Major Adverse Cardiovascular Events following Nicotinamide Exposure.

Importance: Nicotinamide metabolites have recently been implicated in increased risk of major cardiovascular events (MACE). Supportive data about clinical risk of MACE for nicotinamide users is lacking.

Objective: To determine whether nicotinamide use results in an increase of MACE.

Exploring the current state of technology transfer in the United States: perspectives and improvement strategies from the experts.

Technology transfer (TT) is a necessary, yet complex process to convey and disseminate scientific knowledge to the commercial sector. However, multiple barriers in TT can impede commercialization and innovative progress. To cultivate a deeper understanding, we conducted five interviews with strategic, elite leaders in different areas of TT in the United States.

Artificial intelligence algorithms and three-dimensional volumetric rendering for basal cell carcinoma detection and tumour depth assessment in reflectance confocal microscopy-optical coherence tomography images: a pilot study.

The reflectance confocal microscopy (RCM)-optical coherence tomography (OCT) device has shown utility in detecting and assessing the depth of basal cell carcinoma (BCC) in vivo but is challenging for novices to interpret. Artificial intelligence (AI) applied to RCM-OCT could aid readers. We trained AI models, using OCT rasters of biopsy-confirmed BCC, to detect BCC, create three-dimensional rendering and automatically measure tumour depth.

Toward personalized skin cancer care: multiple skin cancer development in five cohorts.

Importance: Many patients will develop more than one skin cancer, however most research to date has examined only case status.

Objective: Describe the frequency and timing of the treatment of multiple skin cancers in individual patients over time.

Design: Longitudinal claims and electronic health record-based cohort study.

Voriconazole Metabolism is Associated with the Number of Skin Cancers Per Patient.

Voriconazole exposure is associated with skin cancer, but it is unknown how the full spectrum of its metabolizer phenotypes impacts this association. We conducted a retrospective cohort study to determine how variation in metabolism of voriconazole as measured by metabolizer status of CYP2C19 is associated with the total number of skin cancers a patient develops and the rate of development of the first skin cancer after treatment. There were 1,739 organ transplant recipients with data on CYP2C19 phenotype.

A Plain Language Summary on the Effect of the Medication Vibegron on Blood Pressure and Heart Rate in People With Overactive Bladder.

What Is This Summary About?: This is a plain language summary of an article originally published in the journal . Vibegron is a medicine that was approved by the US Food and Drug Administration (also called FDA) in 2020 for treatment of overactive bladder, a condition that causes a frequent and urgent need to urinate. This study took place before the medicine was approved to look at whether vibegron affects blood pressure or heart rate.

Recent Advances in Melanoma Diagnosis and Prognosis Using Machine Learning Methods.

Purpose Of Review: The purpose was to summarize the current role and state of artificial intelligence and machine learning in the diagnosis and management of melanoma.

Recent Findings: Deep learning algorithms can identify melanoma from clinical, dermoscopic, and whole slide pathology images with increasing accuracy. Efforts to provide more granular annotation to datasets and to identify new predictors are ongoing.

Cutaneous collagenous vasculopathy: A report of three cases.

Cutaneous collagenous vasculopathy is a rare pauci-inflammatory, superficial, cutaneous vasculopathy characterized by progressive fine-branching telangiectasias clinically, while light microscopically one observes dilated venules and capillaries within the superficial dermis exhibiting excessive Type IV collagen within the vessel wall. We present three cases of collagenous vasculopathy. Two cases were associated with certain autoimmune stigmata, including a positive serologic anti-endothelial cell antibody assay and positive lupus anticoagulant in one, while the third case had positive anti-ribonucleoprotein (RNP) antibodies.

Cross-sectional analysis of national electronic injury surveillance system for burn injuries presenting to United States emergency departments 2000-2018.

Patients with burns commonly present to Emergency Departments (EDs), in addition to burn centers. Patients at burn centers typically have more severe burns than those at EDs, and previous studies have analyzed burn center databases. To update the overall burn epidemiology in the United States (US), we analyzed burn injury trends and sources across all age groups using the National Electronic Injury Surveillance System (NEISS), which collects all injuries reported to US EDs.

Effects of vibegron on ambulatory blood pressure in patients with overactive bladder: results from a double-blind, placebo-controlled trial.

Objectives: To characterize the blood pressure (BP) profile of the new β3-adrenergic receptor agonist, vibegron, in patients with overactive bladder.

Methods: Patients were randomized to once-daily vibegron 75 mg or placebo for 28 days and underwent ambulatory BP monitoring. The primary endpoint was change from baseline (CFB) to day 28 in mean daytime ambulatory systolic BP (SBP).

Global Health Crisis, Global Health Response: How Global Health Experiences Prepared North American Physicians for the COVID-19 Pandemic.

The COVID-19 pandemic plunged hospital systems into resource-deprived conditions unprecedented since the 1918 flu pandemic. It brought forward concerns around ethical management of scarcity, racism and distributive justice, cross-disciplinary collaboration, provider wellness, and other difficult themes. We, a group of medical educators and global health educators and clinicians, use the education literature to argue that experience gained through global health activities has greatly contributed to the effectiveness of the COVID-19 pandemic response in North American institutions.

Active versus Passive Voiding Protocols after Same-day Minimally Invasive Hysterectomy.

Study Objective: To determine the proportion of patients discharged with a urinary catheter after a same-day benign gynecologic minimally invasive hysterectomy (MIH) according to active vs passive voiding protocols. The secondary objectives included assessing postanesthesia care unit (PACU) duration and postoperative urinary retention (POUR) rate ≤2 weeks of discharge.

Design: Retrospective, observational cohort study.

Correlates of poor sleep based upon wrist actigraphy data in bipolar disorder.

Background: Wrist-worn actigraphy can objectively measure sleep, and has advantages over self-report, particularly for people with Bipolar Disorder (BD) for whom self-reports might be influenced by affect. Clinically useful data reduction approaches are needed to explore these complex data.

Methods: We created a composite score of sleep metrics in BD based on 51 BD and 80 healthy comparison (HC) participants.

Review of Nail Lichen Planus: Epidemiology, Pathogenesis, Diagnosis, and Treatment.

Nail lichen planus is an inflammatory disorder of the nails with potential for significant cosmetic disfigurement and functional impairment. Nail manifestations may be isolated or appear concurrently with other forms of lichen planus. Longitudinal ridging is the most common clinical finding, but progressive disease may result in irreversible scarring (dorsal pterygium) or permanent nail loss (anonychia).