Imaging Features of Immunodeficiency-Associated Primary CNS Lymphoma: A Review.

In the immunocompromised setting, there are distinct radiologic findings of primary central nervous system lymphoma (PCNSL), including necrotic ring-enhancing lesions, increased propensity for intralesional haemorrhage, and multiplicity. In this clinical context, advanced imaging with MR perfusion, spectroscopy, and diffusion-weighted imaging can be used to increase accuracy in the diagnosis of lymphoma over mimics such as high-grade glioma, metastases, or infection. This review summarizes the histology and pathophysiology of PCNSL in immunodeficient hosts, which provide a basis for its imaging appearances, prognosis, and treatment. This discussion is important for the general radiologist as the incidence of immunodeficiency-related PCNSL may be increasing.

Low Dose Aspirin Initiation 18 Hours After Thrombolytic Therapy in Acute Ischemic Stroke.

OBJECTIVES: To investigate the safety of administering low-dose aspirin (81 mg) 18 hours after intravenous thrombolytic therapy. METHODS: This is a retrospective cohort investigation. Individuals received either alteplase or tenecteplase for acute ischemic stroke followed by aspirin 81 mg (after follow-up imaging). An institutional change moved follow-up post-thrombolytic CT scans to 18 hours, and qualifying patients were grouped based on whether they received aspirin ≤24 hours or >24 hours. Chart reviews were conducted to assess the primary outcome of new or worsening intracranial hemorrhage, as well as secondary outcomes of change in stroke scale scores at discharge and 3 months, lengths of stay, favorable outcomes at 3 months, hospital readmission, and mortality. RESULTS: Out of 350 patients screened, 130 qualified for inclusion-50 of whom received aspirin ≤24 hours (mean 21.1 hours, SD±6.2), and 80 who received aspirin >24 hours (mean 34 hours, SD±8.2). Only 1 new intracranial bleed occurred following aspirin administration in the >24-hour group. No statistically significant differences were observed in any of the secondary outcomes, although there was higher mortality (3/50 vs. 2/80, P=0.372) and shorter hospital length of stay (median difference -1.0 day, P=0.0336) in the <24 hours group. CONCLUSIONS: Low-dose aspirin administration sooner than 24 hours following thrombolytic therapy did not increase bleeding events. Sooner aspirin administration after ischemic stroke can potentially enhance the prevention of secondary embolization and did not demonstrate worse clinical outcomes; however, further randomized controlled trials are needed.

Managing Modern Antiretroviral Therapy in the Intensive Care Unit: Overcoming Challenges for Critically Ill People With Human Immunodeficiency Virus.

People with human immunodeficiency virus (HIV) have a 50% excess risk for intensive care unit (ICU) admission, often for non-HIV-related conditions. Despite this, clear guidance for managing antiretroviral therapy (ART) in this setting is lacking. Selecting appropriate ART in the ICU is complex due to drug interactions, absorption issues, and dosing adjustments. Continuing ART in the ICU can be challenging due to organ dysfunction, drug interactions, and formulary limitations. However, with careful consideration, continuation is often feasible through dose adjustments or alternative administration methods. Temporary discontinuation of ART may be beneficial depending on the clinical scenario. Clinicians should actively seek resources and support to mitigate adverse events and drug interactions in critically ill people with HIV. Navigating challenges in the ICU can optimize ART and improve care and outcomes for critically ill people with HIV. This review aims to identify strategies for addressing the challenges associated with the use of modern ART in the ICU.

Primary intramedullary extradural Ewing sarcoma.

Ewing sarcoma is the second most frequent primary bone tumour of childhood and adolescence. The aim of this report is to describe the imaging, pathology, clinical findings, and treatment of a primary intradural extramedullary Ewing sarcoma with a unique intracranial metastatic component in a pediatric patient. A 14-year-old girl with a history of mood disorders presented to the emergency department with a 3-week history of neck torticollis, cervical pain, paresis, and paresthesia of the upper and lower extremities on the left side. Initially, non-organic causes such as somatization or conversion disorder were suspected. She returned 3 months later when her symptoms worsened. MRI of the head and spine was performed, and demonstrated the presence of a suprasellar, retro-chiasmatic mass lesion. There was also diffuse leptomeningeal enhancement, another well-defined intradural extramedullary lesion the sacral region and several multifocal cauda equina soft tissue nodules. The patient first underwent surgery. The patient was also treated with a combination of chemotherapy (vincristine, doxorubicin and cyclophosphamide alternating with ifosfamide and etoposide (VDC/IE)) and radiation as per the Children's Oncology Group AEWS1221 protocol. Most recent imaging conducted 22 months after the initial mass discovery revealed improvement of the suprasellar mass lesion with residual stable appearance of the prominence and enhancement of the pituitary stalk and tuber cinereum. There was interval improvement of the spinal lesions with no convincing residual. Clinically, at almost three years since initial imaging findings, and 25 months since completing treatment, she is stable from an oncology perspective.

Outcomes Associated With Levetiracetam Use After Spontaneous Intracerebral Hemorrhage.

Background and Purpose: The purpose of this study was to assess the incidence of seizures in patients with spontaneous intracerebral hemorrhage (ICH) who received prophylactic levetiracetam. Methods: This was a retrospective cohort study evaluating the use of levetiracetam in patients without a history of seizures who experienced a spontaneous intracerebral hemorrhage. Patients were excluded if they were younger than 18 years of age, had a documented history of a seizure disorder, or had an antiseizure drug documented on their home medication list. Patients were based on their exposure to levetiracetam. The primary outcome was incidence of seizure during hospital admission. Secondary outcomes included occurrence of adverse events, intensive care unit (ICU) length of stay (LOS), and hospital LOS. Results: Of the 229 patients included in the final analysis, 21 were in the levetiracetam group (LEV) and 208 were in the no levetiracetam group (no LEV). No statistical difference in seizure incidence was observed when comparing the LEV and no LEV groups (1 [4.8%] LEV vs 3 [1.4%] no LEV; P = .32). There was also no statistical difference in the median ICU LOS (2 days [1 day, 5 days] LEV vs 2 days [1 day, 3 days] no LEV; P = .27), median hospital LOS (6 days [2 days, 8 days] LEV vs 6 days [3 days, 9 days] no LEV; P = .27), or adverse events. Conclusions: This study does not support the use of levetiracetam prophylaxis in patients who have experienced an ICH.

Phenotypic heterogeneity associated with KIF21A: Two new cases and review of the literature.

Our understanding of genetic and phenotypic heterogeneity associated with the clinical spectrum of rare diseases continues to expand. Thorough phenotypic descriptions and model organism functional studies are valuable tools in dissecting the biology of the disease process. Kinesin genes are well known to be associated with specific disease phenotypes and a subset of kinesin genes, including KIF21A, have been associated with more than one disease. Here we report two patients with KIF21A variants identified by exome sequencing; one with biallelic variants, supporting a novel KIF21A related syndrome with recessive inheritance and the second report of this condition, and another with a heterozygous de novo variant allele representing a phenotypic expansion of the condition described to date. We provide detailed phenotypic information on both families, including a novel neuropathology finding of neuroaxonal dystrophy associated with biallelic variants in KIF21A. Additionally, we studied the dominant variant in Saccharomyces cerevisiae to assess variant pathogenicity and found that this variant appears to impair protein function. KIF21A associated disease has mounting evidence for phenotypic heterogeneity; further patients and study of an allelic series are required to define the phenotypic spectrum and further explore the molecular etiology for each of these conditions.

Activated Prothrombin Complex Concentrates for the Treatment of Factor Xa Inhibitor-Associated Spontaneous Intracerebral Hemorrhage.

Background: Anticoagulant-associated intracerebral hemorrhage (ICH) is a significant cause of morbidity and mortality. Despite approval of a specific reversal agent for factor Xa inhibitors, there is still much interest in nonspecific reversal agents, such as activated prothrombin complex concentrates (aPCCs). Objective: The objective of this study was to describe ICH expansion in a cohort of patients with factor Xa inhibitor-associated ICH who were treated with aPCC. Methods: This was a retrospective cohort study conducted at an academic medical center designated as a comprehensive stroke center. Consecutive patients admitted for ICH who reported use of apixaban or rivaroxaban prior to admission were considered for inclusion in the study. Patients were treated with 25 to 50 units/kg of aPCC. Intracerebral hemorrhage volume was measured before administration of aPCC and then again within 36 hours of aPCC administration. Results: A total of 40 patients were included in the final analysis. Overall, the cohort was predominantly male (24 [60%]), white (27 [67.5%]), and the mean age was 75.3 ± 10.5 years. Most patients reported taking apixaban prior to admission (31 [77.5%]) and a large proportion were also taking aspirin (13 [32.5%]). The mean change in ICH volume was 1.12 ± 6.03 mL (P = 0.2475). Conclusions and Relevance: There was a nonsignificant change in mean ICH volume and no reported cases of thromboembolism. Due to the relatively high proportion of patients with significant hematoma expansion, more studies are needed on which patient population would best benefit from treatment with aPCC.

Practical Considerations for Laser-Induced Graphene Pressure Sensors Used in Marine Applications.

Small, low-power, and inexpensive marine depth sensors are of interest for a myriad of applications from maritime security to environmental monitoring. Recently, laser-induced graphene (LIG) piezoresistive pressure sensors have been proposed given their rapid fabrication and large dynamic range. In this work, the practicality of LIG integration into fieldable deep ocean (1 km) depth sensors in bulk is explored. Initially, a design of experiments (DOEs) approach evaluated laser engraver fabrication parameters such as line length, line width, laser speed, and laser power on resultant resistances of LIG traces. Next, uniaxial compression and thermal testing at relevant ocean pressures up to 10.3 MPa and temperatures between 0 and 25 °C evaluated the piezoresistive response of replicate sensors and determined the individual characterization of each, which is necessary. Additionally, bare LIG sensors showed larger resistance changes with temperature (ΔR ≈ 30 kΩ) than pressure (ΔR ≈ 1-15 kΩ), indicating that conformal coatings are required to both thermally insulate and electrically isolate traces from surrounding seawater. Sensors encapsulated with two dip-coated layers of 5 wt% polydimethylsiloxane (PDMS) silicone and submerged in water baths from 0 to 25 °C showed significant thermal dampening (ΔR ≈ 0.3 kΩ), indicating a path forward for the continued development of LIG/PDMS composite structures. This work presents both the promises and limitations of LIG piezoresistive depth sensors and recommends further research to validate this platform for global deployment.

"Following your dreams, and not killing yourself to do so": Black PharmDstudent perceptions of pharmacy residency.

OBJECTIVE: Residency training is a key element of advancing the roles of pharmacists in patient care. Diversifying the healthcare workforce is also crucial in reducing health disparities and improving health equity.1 The objective of this study was to investigate Black Doctor of Pharmacy students' perceptions of pursuing pharmacy residency training to aid pharmacy educators in creating and improving structures to support the professional advancement of Black student pharmacists. METHODS: A qualitative study employing focus groups was conducted at one of the top 20 colleges of pharmacy. Four focus groups consisting of Black students in years 2 through 4 of the Doctor of Pharmacy program were organized. A constructivist grounded theory approach2 was utilized to collect and analyze the data, which was organized into a conceptual framework. RESULTS: The elements of the framework developed showcase Black students' consistent negotiation between personal well-being and pursuit of professional advancement. This framework also highlights how the experience of navigating personal wellness is unique for Black students, rather than simply a work/life balance concern. CONCLUSION: The concepts in this framework may be valuable for colleges of pharmacy seeking to increase diversity in their residency pipeline. Targeted interventions to ensure adequate mentorship, mental health resources, diversity and inclusion efforts, and financial support will be necessary if the profession truly desires to expand increased diversity in clinical pharmacy.

Comparison of nimodipine formulations and administration techniques via enteral feeding tubes in patients with aneurysmal subarachnoid hemorrhage: A multicenter retrospective cohort study.

BACKGROUND: Nimodipine improves outcomes following aneurysmal subarachnoid hemorrhage (aSAH) and current guidelines suggest that patients with aSAH receive nimodipine for 21 days. Patients with no difficulty swallowing will swallow the whole capsules or tablets; otherwise, nimodipine liquid must be drawn from capsules, tablets need to be crushed, or the commercially available liquid product be used to facilitate administration through an enteral feeding tube (FT). It is not clear whether these techniques are equivalent. The goal of the study was to determine if different nimodipine formulations and administration techniques were associated with the safety and effectiveness of nimodipine in aSAH. METHODS: This was a retrospective multicenter observational cohort study conducted in 21 hospitals across North America. Patients admitted with aSAH and received nimodipine by FT for ≥3 days were included. Patient demographics, disease severity, nimodipine administration, and study outcomes were collected. Safety end points included the prevalence of diarrhea and nimodipine dose reduction or discontinuation secondary to blood pressure reduction. Predictors of the study outcomes were analyzed using regression modeling. RESULTS: A total of 727 patients were included. Administration of nimodipine liquid product was independently associated with higher prevalence of diarrhea compared to other administration techniques/formulations (Odds ratio [OR] 2.28, 95% confidence interval [CI] 1.41-3.67, p-value = 0.001, OR 2.76, 95% CI 1.37-5.55, p-value = 0.005, for old and new commercially available formulations, respectively). Bedside withdrawal of liquid from nimodipine capsules prior to administration was significantly associated with higher prevalence of nimodipine dose reduction or discontinuation secondary to hypotension (OR 2.82, 95% CI 1.57-5.06, p-value = 0.001). Tablet crushing and bedside withdrawal of liquid from capsules prior to administration were associated with increased odds of delayed cerebral ischemia (OR 6.66, 95% CI 3.48-12.74, p-value <0.0001 and OR 3.92, 95% CI 2.05-7.52, p-value <0.0001, respectively). CONCLUSIONS: Our findings suggest that enteral nimodipine formulations and administration techniques might not be equivalent. This could be attributed to excipient differences, inconsistency and inaccuracy in medication administration, and altered nimodipine bioavailability. Further studies are needed.

Patient-Specific Risk Factors Associated With the Development of Hyperchloremia in a Neurocritical Care Intensive Care Unit.

BACKGROUND: Hypertonic sodium chloride (HTS) is used in intensive care unit (ICU) settings to manage cerebral edema, intracranial hypertension, and for the treatment of severe hyponatremia. It has been associated with an increased incidence of hyperchloremia; however, there is limited literature focusing on hyperchloremic risk in neurologically injured patients. Objective: The primary objective of this study was to determine risk factors associated with development of hyperchloremia in a neurocritical care (NCC) ICU population. METHODS: This was a retrospective case-control study performed in an adult NCC ICU and included patients receiving HTS. The primary outcome was to evaluate patient characteristics and treatments associated with hyperchloremia. Secondary outcomes included acute kidney injury and mortality. RESULTS: Overall, 133 patients were identified; patients who were hyperchloremic were considered cases (n = 100) and patients without hyperchloremia were considered controls (n = 33). Characteristics and treatments were evaluated with univariate analysis and a logistic regression model. In the multivariate model, APACHE II Score, initial serum osmolality, total 3% saline volume, and total 23.4% saline volume were significant predictors for hyperchloremia. In addition, patients with a serum chloride greater than 113.5 mEq/L were found to have a higher risk of acute kidney injury (AKI) (adjusted OR 3.15; 95% CI 1.10-9.04). CONCLUSIONS: This study demonstrated APACHE II Score, initial serum osmolality, and total 3% and 23.4% saline volumes were associated with developing hyperchloremia in the NCC ICU. In addition, hyperchloremia is associated with an increased risk of AKI.

Case Report: Possible Serotonin Syndrome in a Patient Taking Kratom and Multiple Serotonergic Agents.

INTRODUCTION: Kratom, an unregulated herbal supplement, has emerged as self-treatment for anxiety/depression. Kratom exhibits inhibition at multiple cytochrome P450 isozymes involved in metabolism of prescription medications, including serotonergic agents. We report a case of possible serotonin syndrome induced by kratom use in combination with prescription psychotropic medications. CASE: A 63-year-old male presented with diaphoresis, flushing, aphasia, confusion, dysarthria, right facial droop, and oral temperature of 39.6oC (103.2oF), lactate 2.7 mmol/L, and creatine phosphokinase of 1507 IU/L. Initial differential diagnoses included acute ischemic stroke and bacterial meningitis. Despite partial treatment with alteplase and broad-spectrum antibiotics, symptoms persisted, and subsequent physical exam noted hyperreflexia, clonus, tremors, and temperature of 41.1oC (106oF). Home medications included a chronic regimen for anxiety/depression with bupropion, buspirone, desvenlafaxine, trazodone, and ziprasidone, in addition to kratom. Clinical suspicion for serotonin syndrome led to initiation of cyproheptadine, lorazepam, and cooling blankets. Aphasia, facial droop, and confusion improved after administration of cyproheptadine. Bupropion was restarted during hospitalization; remaining medications restarted at the discretion of the primary care provider. DISCUSSION: Risk of serotonin syndrome with multiple serotonergic agents is well-known. Kratom is metabolized by cytochrome P40 isozymes 3A4, 2C9, and 2D6, and exhibits inhibition at those enzymes, in addition to 1A2. Pharmacokinetic interactions of kratom with prescription serotonergic agents metabolized through these isozymes has the potential to increase systemic exposure of serotonin, potentially leading to serotonin syndrome. CONCLUSION: Because substances contained in kratom can inhibit metabolism of prescription serotonergic medications, clinicians must be aware of potential development of serotonin syndrome.

Major Bleeding Postadministration of Tenecteplase Versus Alteplase in Acute Ischemic Stroke.

BACKGROUND: Tenecteplase is a genetically engineered fibrinolytic with growing interest in the treatment of acute ischemic stroke. Compared to alteplase, tenecteplase is effective for neurologic improvement following ischemic stroke in patients with large vessel occlusions who are eligible for thrombectomy and for mild ischemic strokes with National Institutes of Health Stroke Scale of 0 to 5. OBJECTIVE: The purpose of this study is to determine if safety outcomes are different in patients receiving tenecteplase and alteplase for acute ischemic stroke. METHODS: This retrospective cohort reviewed all patients who received alteplase or tenecteplase from January 2019 to December 2020. Patients admitted before April 28, 2020, received alteplase intravenous bolus over 1 minute followed by an infusion over 1 hour, for a total of 0.9 mg/kg. Patients admitted after this date received tenecteplase 0.25 mg/kg as an intravenous bolus over 5 to 10 seconds. Any patient transferring from an outside facility was excluded. The primary outcome was major bleeding. RESULTS: There was no significant difference in major bleeding between alteplase and tenecteplase (40 [18%] vs 21 [18.1%], P = 0.985). There was no significant difference in all-cause inpatient mortality for alteplase versus tenecteplase (10 [5%] vs 5 [4%], P = 0.934) or in adverse events between the groups (22 [9%] vs 14 [12%], P = 0.541) for alteplase and tenecteplase, respectively. CONCLUSIONS AND RELEVANCE: Tenecteplase had similar rates of major bleeding versus alteplase and may be a reasonable alternative in the treatment of acute ischemic stroke.

Impact of a stroke interprofessional simulation on health professional students.

INTRODUCTION: The objective was to describe the interprofessional stroke simulation delivered across three campuses with seven types of health professions students and the impact the activity had on the students. METHODS: An interprofessional stroke simulation event was completed with pharmacy, medical, nursing, physician assistant, occupational therapy, physical therapy, and speech pathology students across a multi-site campus. Pre-activity, demographic information was requested including age, gender, discipline, year in respective program, number of experiences in prior interprofessional events, and comfort working with other health care professionals. The survey was repeated after the session and gathered free-text responses on whether learners gained information on working together, if they learned about the roles of other health care workers, and if they found the session useful. RESULTS: A total of 1820 health care professional students completed the simulation activity over four years. Of those students, 1035 (57%) completed the pre-survey, and 884 (49%) completed the post-survey. From the post-survey results, 91.5% of participants felt that they learned how health care disciplines can work together. Also, 87% of participants felt more comfortable working with learners from other professions. Most participants agreed the session was useful (77.1%) and rated it as moderately to extremely effective (81.8%). CONCLUSIONS: Interprofessional sessions with health care professional students are beneficial for learning new information about other professions and enhancing comfort levels in working with interprofessional groups. The interprofessional simulation improved the comfort level of students working with other health care professional students and should be considered in professional student curricula.

The Lived Experience of Human-Pet Relationships among Adult Survivors of Childhood Sexual Abuse: An Interpretative Phenomenological Analysis.

Given the high prevalence and severe consequences of childhood sexual abuse, it is essential to identify ways to support adult survivors. One potential and relatively unexplored resource available to survivors is the human-pet relationship. In the literature, the human-pet relationship is linked to many positive benefits to physiological regulation, mental health, physical health, and social support - areas of functioning where survivors of childhood sexual abuse may be particularly at risk. Despite existing evidence, there is little research on human-pet relationships among survivors of childhood sexual abuse. To help address this gap, this qualitative study explored the lived experience of human-pet relationships among adult survivors of childhood sexual abuse. Utilizing data collection and analysis methods from Interpretative Phenomenological Analysis, semi-structured interviews were conducted with 10 adult survivors of childhood sexual abuse. The following themes were developed from the data: (a) close bond with pet; (b) idiosyncrasies within the human-pet relationship; (c) moral responsibility; (d) fundamental differences between pets and humans; (e) safety in the human-pet relationship; (f) resource for coping with painful experience; (g) positive impact on well-being; (h) buttress for human-human social interaction; (i) medium for skill and knowledge development; and (j) shortcomings of the human-pet relationship. Findings are discussed in the context of the existing literature, along with considerations for practice and future research with childhood sexual abuse survivors.

Impact of Pharmacist Education on Incoming Medical Residents.

Introduction: The graduating medical student transitioning to the role of a first-year medical resident is expected to know the proper medications and dosages for routine patient conditions. Pharmacists on an interdisciplinary health care team can be effective teachers of medical residents. Given the small amount of pharmacy-based education included in medical school curricula, it is important that medical residents have a basic foundation of pharmacotherapeutic knowledge. The purpose of this study was to assess the effectiveness of a pharmacist-led education session in improving medical resident pharmacotherapy knowledge. Methods: During orientation in 2016 to 2019, first-year medical residents completed an 8-item pre-test assessing their choices of medications and dosages on 8 patient conditions. A post-test assessing these same items was taken after a 50-minute lecture from a pharmacist experienced in resident education. First-year medical residents at a separate institution within the university system completed the pre-test only. Results: Overall, 243 medical residents received the lecture and took both tests and 170 medical residents at the other institution completed the pre-test only (100% response rate). Using descriptive statistics, the 2 groups of medical residents were comparable in age, gender, and scores on the pre-test. Medical residents receiving the lecture showed an average 32% point change improvement in performance on the post-test. The pharmacist-led lecture consistently received the highest ratings (4.7 ± 0.5 out of 5) from residents of all the orientation topics presented. Conclusions: A pharmacist-led education session increased the pharmacotherapy knowledge of first-year medical residents at their resident orientation. Medical residents value reinforcement of basic pharmacotherapy knowledge to start their training.

Impact of Pharmacists to Improve Patient Care in the Critically Ill: A Large Multicenter Analysis Using Meaningful Metrics With the Medication Regimen Complexity-ICU (MRC-ICU) Score.

OBJECTIVES: Despite the established role of the critical care pharmacist on the ICU multiprofessional team, critical care pharmacist workloads are likely not optimized in the ICU. Medication regimen complexity (as measured by the Medication Regimen Complexity-ICU [MRC-ICU] scoring tool) has been proposed as a potential metric to optimize critical care pharmacist workload but has lacked robust external validation. The purpose of this study was to test the hypothesis that MRC-ICU is related to both patient outcomes and pharmacist interventions in a diverse ICU population. DESIGN: This was a multicenter, observational cohort study. SETTING: Twenty-eight ICUs in the United States. PATIENTS: Adult ICU patients. INTERVENTIONS: Critical care pharmacist interventions (quantity and type) on the medication regimens of critically ill patients over a 4-week period were prospectively captured. MRC-ICU and patient outcomes (i.e., mortality and length of stay [LOS]) were recorded retrospectively. MEASUREMENTS AND MAIN RESULTS: A total of 3,908 patients at 28 centers were included. Following analysis of variance, MRC-ICU was significantly associated with mortality (odds ratio, 1.09; 95% CI, 1.08-1.11; p < 0.01), ICU LOS (ß coefficient, 0.41; 95% CI, 00.37-0.45; p < 0.01), total pharmacist interventions (ß coefficient, 0.07; 95% CI, 0.04-0.09; p < 0.01), and a composite intensity score of pharmacist interventions (ß coefficient, 0.19; 95% CI, 0.11-0.28; p < 0.01). In multivariable regression analysis, increased patient: pharmacist ratio (indicating more patients per clinician) was significantly associated with increased ICU LOS (ß coefficient, 0.02; 0.00-0.04; p = 0.02) and reduced quantity (ß coefficient, -0.03; 95% CI, -0.04 to -0.02; p < 0.01) and intensity of interventions (ß coefficient, -0.05; 95% CI, -0.09 to -0.01). CONCLUSIONS: Increased medication regimen complexity, defined by the MRC-ICU, is associated with increased mortality, LOS, intervention quantity, and intervention intensity. Further, these results suggest that increased pharmacist workload is associated with decreased care provided and worsened patient outcomes, which warrants further exploration into staffing models and patient outcomes.

E-textile based modular sEMG suit for large area level of effort analysis.

We present a novel design for an e-textile based surface electromyography (sEMG) suit that incorporates stretchable conductive textiles as electrodes and interconnects within an athletic compression garment. The fabrication and assembly approach is a facile combination of laser cutting and heat-press lamination that provides for rapid prototyping of designs in a typical research environment without need for any specialized textile or garment manufacturing equipment. The materials used are robust to wear, resilient to the high strains encountered in clothing, and can be machine laundered. The suit produces sEMG signal quality comparable to conventional adhesive electrodes, but with improved comfort, longevity, and reusability. The embedded electronics provide signal conditioning, amplification, digitization, and processing power to convert the raw EMG signals to a level-of-effort estimation for flexion and extension of the elbow and knee joints. The approach we detail herein is also expected to be extensible to a variety of other electrophysiological sensors.

Impact of Factor Xa Inhibitor Reversal with Prothrombin Complex Concentrate in Patients with Traumatic Brain Injuries.

BACKGROUND: Anticoagulant use prior to trauma has been associated with increased incidence of traumatic brain injury (TBI), intracranial hemorrhage (ICH) progression, and mortality. Prothrombin complex concentrates (PCCs) are commonly used as off-label treatments for factor Xa inhibitor-associated life-threatening hemorrhage. At this time, there is no consensus regarding appropriate indication, target dose, or outcomes of PCC administration in patients presenting with traumatic ICH. This study seeks to evaluate the impact of reversal with PCC on hemorrhage progression and outcomes in patients with TBI on preinjury factor Xa inhibitors. METHODS: This single-center retrospective cohort study included patients ≥ 18 years presenting with an acute TBI of any severity on apixaban or rivaroxaban from September 1, 2016, to September 1, 2019. Patients were grouped on the basis of receipt of PCCs for reversal (i.e., reversal or no reversal). Exclusion criteria included spontaneous ICH or known coagulopathy. Propensity score matching was conducted with the following variables: age, Abbreviated Injury Scale (head) score, and Charlson Comorbidity Index score. The primary outcome was hemorrhage stability within 48 h. Secondary outcomes included degree of hemorrhage progression, in-hospital mortality, discharge disposition, and incidence of thromboembolic events. RESULTS: Of the 115 patients meeting inclusion criteria, 84 were included in the propensity score matched data set. Baseline characteristics, comorbidities, and TBI severity were similar. The majority of patients in the reversal group (35 [83.3%]) and the no reversal (NR) group (40 [95.2%]) experienced a mild TBI (admission Glasgow Coma Scale score of 14 to 15). In the reversal group, patients received 34.3 units/kg activated PCC, 30.5 units/kg four-factor PCC, or 54.9 units/kg four-factor PCC and activated PCC on average. There was no difference observed in the incidence of hemorrhage progression (10.8% NR vs. 15.0% reversal; p = 0.739) or in median change in ICH volume (0 mL NR vs. 1 mL reversal; p = 0.2199) between groups. Additionally, reversal did not affect in-hospital mortality (3 [7.1%] NR vs. 4 [9.5%] reversal; p > 0.999). One patient in the reversal group developed a deep vein thrombosis (DVT) during the hospitalization; however, this did not result in a statistically significant difference in the occurrence of DVT (p > 0.999). CONCLUSIONS: This study demonstrated that PCC used for the treatment of factor Xa inhibitor-associated ICH related to mild TBI did not significantly impact the incidence or degree of hemorrhage progression, and PCC treatment did not result in increased thromboembolic events.

Antibiotic Prophylaxis and Incidence of Infection with External Ventricular Drains and Intra-Cranial Pressure Monitors.

Objectives: Guidelines do not recommend extended antibiotic prophylaxis for external ventricular drains (EVD) or intra-cranial pressure (ICP) monitors. The study objective was to determine if infection rates are different for patients receiving antibiotic prophylaxis for EVD or ICP monitors. Patients and Methods: This single-center retrospective cohort reviewed intensive care unit patients who had an EVD or ICP monitor placed. Patients receiving antibiotic prophylaxis were compared with those who did not receive prophylaxis. The primary end point was incidence of central nervous system (CNS) infection. Results: Overall, 228 patients were included, 120 of whom received prophylaxis and 108 who did not receive prophylaxis. The primary end point of CNS infection was not different between groups (18 [17%] vs. 23 [19%]; p = 0.6236). Conclusions: Antibiotic prophylaxis was not associated with a decreased incidence of CNS infection in patients with EVD or ICP monitors. Evaluation of antibiotic use in this patient population is warranted to prevent resistance and adverse drug effects.