Citations

Abstract Background Physical medicine and rehabilitation (PM&R) is a diverse specialty, growing and evolving over a variety of subspecialty and practice focus areas. Accurate data regarding practice patterns of physiatrists are essential for updating requirements in training and certification, particularly as the Accreditation Council for Graduate Medical Education begins its process to update of the PM&R core residency training requirements. This study analyzes practice trends for nearly 98% of physiatrists in active practice, the largest study to date. Objective To update current demographics of physicians specializing in PM&R, including current areas of practice focus, to analyze the alignment of practice focus with subspecialty certification, and to determine the extent that electromyography is a component of current physiatric practice. Design Retrospective analysis of deidentified responses from American Board of Physical Medicine and Rehabilitation (ABPMR) board‐certified PM&R physicians (diplomates) on annual enrollment in the ABPMR Continuing Certification program. Participants A total of 9543 ABPMR diplomates. Main Outcome Measures Demographics – age, gender, years in practice, practice setting(s) and area(s). Practice focus, subspecialty certifications. Results The majority of practicing physiatrists are men (62%) although the percentage of women in the field is growing (38%). Nearly 80% of physiatrists report more than one practice focus area, with pain medicine and sports medicine/musculoskeletal practices most commonly reported. Conclusions This study confirms the growth trends in PM&R in pain and sports medicine but also highlights the substantial number of physiatrists focusing their practices in areas related to neurorehabilitation and medical rehabilitation. The large majority of physiatrists incorporate multiple focus areas into their practices. Electromyography is a focus for a declining percentage of practicing physiatrists.

Abstract Objectives Recent work has demonstrated that automated fluorescence flow cytometry (FLC) is a potential alternative for the detection and quantification of Plasmodium parasites. The objective of this study was to apply this novel FLC method to detect and quantify Babesia parasites in venous blood and compare results to light microscopy and polymerase chain reaction methods. Methods An automated hematology/malaria analyzer (XN-31; Sysmex) was used to detect and quantify B microti–infected red blood cells from residual venous blood samples (n = 250: Babesia positive, n = 170; Babesia negative, n = 80). As no instrument software currently exists for Babesia, qualitative and quantitative machine learning (ML) algorithms were developed to facilitate analysis. Results Performance of the ML models was verified against the XN-31 software using P falciparum–infected samples. When applied to Babesia-infected samples, the qualitative ML model demonstrated an area under the curve (AUC) of 0.956 (sensitivity, 95.9%; specificity, 83.3%) relative to polymerase chain reaction. For valid scattergrams, the qualitive model achieved an AUC of 1.0 (sensitivity and specificity, 100%), while the quantitative model demonstrated an AUC of 0.986 (sensitivity, 94.4%; specificity, 100%). Conclusions This investigation demonstrates that Babesia parasites can be detected and quantified directly from venous blood using FLC. Although promising, opportunities remain to improve the general applicability of the method.

Abstract Background Myocarditis is an inflammation of the heart muscle most often caused by an immune response to viral infections. Sex differences in the immune response during myocarditis have been well described but upstream mechanisms in the heart that might influence sex differences in disease are not completely understood. Methods Male and female BALB/c wild type mice received an intraperitoneal injection of heart-passaged coxsackievirus B3 (CVB3) or vehicle control. Bulk-tissue RNA-sequencing was conducted to better understand sex differences in CVB3 myocarditis. We performed enrichment analysis to understand sex differences in the transcriptional landscape of myocarditis and identify candidate transcription factors that might drive sex differences in myocarditis. Results The hearts of male and female mice with myocarditis were significantly enriched for pathways related to an innate and adaptive immune response compared to uninfected controls. When comparing females to males with myocarditis, males were enriched for inflammatory pathways and gene changes that suggested worse mitochondrial transcriptional support (e.g., mitochondrial electron transport genes). In contrast, females were enriched for pathways related to mitochondrial respiration and bioenergetics, which were confirmed by higher transcript levels of master regulators of mitochondrial function including peroxisome proliferator-activated receptor gamma coactivator 1 (PGC1α), nuclear respiratory factor 1 (NRF1) and estrogen-related receptor alpha (ERRα). TRANSFAC analysis identified ERRa as a transcription factor that may mediate sex differences in mitochondrial function during myocarditis. Conclusions Master regulators of mitochondrial function were elevated in females with myocarditis compared to males and may promote sex differences in mitochondrial respiratory transcript expression during viral myocarditis resulting in less severe myocarditis in females following viral infection.

Abstract Germline BRCA2 loss-of function (LOF) variants identified by clinical genetic testing predispose to breast, ovarian, prostate and pancreatic cancer. However, variants of uncertain significance (VUS) (n>4000) limit the clinical use of testing results. Thus, there is an urgent need for functional characterization and clinical classification of all BRCA2 variants. Here we report on comprehensive saturation genome editing-based functional characterization of 97% of all possible single nucleotide variants (SNVs) in the BRCA2 DNA Binding Domain hotspot for pathogenic missense variants that is encoded by exons 15 to 26. The assay was based on deep sequence analysis of surviving endogenously targeted haploid cells. A total of 7013 SNVs were characterized as functionally abnormal (n=955), intermediate/uncertain, or functionally normal (n=5224) based on 95% agreement with ClinVar known pathogenic and benign standards. Results were validated relative to batches of nonsense and synonymous variants and variants evaluated using a homology directed repair (HDR) functional assay. Breast cancer case-control association studies showed that pooled SNVs encoding functionally abnormal missense variants were associated with increased risks of breast and ovarian cancer (odds ratio (OR) 3.89, 95%CI: 2.77-5.51). In addition, 86% of tumors associated with abnormal missense SNVs displayed loss of heterozygosity (LOH), whereas 26% of tumors with normal variants had LOH. The functional data were added to other sources of information in a ClinGen/ACMG/AMP-like model and 700 functionally abnormal SNVs, including 220 missense SNVs, were classified as pathogenic or likely pathogenic, while 4862 functionally normal SNVs, including 3084 missense SNVs, were classified as benign or likely benign. These classified variants can now be used for risk assessment and clinical care of variant carriers and the remaining functional scores can be used directly for clinical classification and interpretation of many additional variants.

Abstract Introduction Obesity is a global health crisis that has been growing over the past few decades. The economic burden associated with obesity is substantial as it is associated with multiple disabling chronic diseases, such as cardiovascular disease, certain cancers, osteoarthritis, chronic pain, and mental illness. Obesity is known to be a risk factor for sexual dysfunction in men, but this association is less well understood in women. Aims To provide a narrative review of the available literature on the relationship between overweight/obesity and female sexual dysfunction, elaborate on the possible mechanisms explaining this association, and discuss the effects of weight loss on sexual function in those with obesity. Methods A search of the medical literature was carried out in PubMed and Medline, focusing on original research and systematic reviews of original research on obesity and sexual function in women. Results The relationship between obesity and female sexual function is not consistent across studies. While women with obesity are more likely to have worse sexual function and avoid sexual activity, many studies have failed to identify these associations. Lifestyle changes resulting in weight loss lead to better sexual function, and bariatric surgery has been shown to improve sexual function in the first couple of years following the procedure; yet, the long-term effects of weight loss and bariatric surgery are still uncertain. Conclusions The evidence on the relationship between obesity and female sexual function is mixed. Nevertheless, weight loss has been shown to improve sexual function in women with obesity. The impact of weight loss medications and the long-term effect of bariatric surgery on female sexual function require further study.

AbstractObjectivesSingle‐use rhinolaryngoscopes were brought to market in 2019 as an alternative to traditional reusable scopes and have garnered interest across settings given portability and potential cost advantages. While single‐use was previously evaluated compared to traditional devices, the overall impact to the consult experience for both users and patients has not been captured.MethodsEighteen residents performed consults with both single‐use and reusable rhinolaryngoscope systems on alternating weeks. A five‐question cumulative survey administered across three assessment points over a 12‐week period using a five‐point rating system to rate favorability. Residents and patients also completed four‐point scale surveys following procedure(s) to capture the consult experience. Statistical analyses were performed to measure significance differences between survey responses between the two systems.ResultsSingle‐use rhinolaryngoscopes received higher overall ratings compared with reusables across each metric captured including overall consult time (4.3 vs. 2.2, p < .001), multiscope consults (4.4 vs. 3.1, p < .001), patient communication (4.6 vs. 2.1, p < .001), teaching opportunities (4.6 vs. 2.1, p < .001), and overall ease of use (4.7 vs. 2.6, p < .001). Residents rated single‐use higher than reusable after each procedure in terms of ease of use (1.07 vs. 2.68, p < .001) and visual clarity (1.27 vs. 1.89, p = .003), while patients rated single‐use higher for understanding of illness (3.9 vs. 3.1, p < .001) and understanding of treatment rationale (3.9 vs. 3.1, p < .001).ConclusionResident and patient experience feedback favored single‐use rhinolaryngoscopes compared to reusable scope technology across multiple surveyed measurables. Single‐use rhinolaryngoscopes provide a viable tool for otorhinolaryngologist and other clinicians to perform rhinolaryngoscopy consults.Level of Evidence4.

Background The majority of patients with spontaneous intracranial hypotension (SIH) are symptomatic. Some patients are discovered incidentally. The proportion of asymptomatic SIH has never been defined. This article reports our institution’s rate of asymptomatic cases among all of our patients with high/intermediate Bern scores on brain MRI, etiology of leak in asymptomatic cases, complications of asymptomatic leaks, and evolution of imaging before and after treatment. Methods We retrospectively analyzed data from the Cerebrospinal Fluid (CSF) Dynamics clinic spanning September 2020 to July 2023. Bern score was calculated from all available brain MRIs in patients with confirmed leaks. Patients with iatrogenic leaks or no brain MRI were excluded. The charts of asymptomatic patients were reviewed to obtain MRI indications, SIH progression, complications, leak type, and treatment outcomes. Results Some 8.6% (7/81) patients with high/intermediate Bern scores were asymptomatic at the time of imaging. Two patients declined myelography. Four of seven asymptomatic patients were found to have CSF-venous fistulas and underwent embolization with radiographic improvement. Complications of asymptomatic leaks in this population included subdural hematoma and superficial siderosis. Conclusions Asymptomatic but clearly present spinal CSF leaks were not uncommon in our group. These results highlight the possibility of a presymptomatic phase in patients with CSF leaks. In our sample, myelography was readily positive for etiology of the leak, and leaks promptly responded to targeted treatment.