Tag: pubmed

Environ Technol. 2024 Dec 3:1-16. doi: 10.1080/09593330.2024.2423907. Online ahead of print.

ABSTRACT

Soil erosion is a world-wide issue driven by land management and climate change. Research has focussed on soil loss rates from agricultural land. However, the loss of trace elements essential for soil and plant health, or potentially toxic elements that occur as impurities in fertilisers and manures, is poorly understood. This study reports on the loads and forms of copper, cadmium, manganese, nickel, selenium and zinc lost from three types of agricultural systems at Rothamsted Research’s North Wyke Farm Platform over five individual storm events. Loads reflected a combination of concentrations in the soil, annual additions from fertilisers, the ability to leach from the soil and rainfall intensity. Arable fields demonstrated an order of magnitude greater loss of soil compared to pasture. Consequently, particulate-bound losses were higher, and the proportion of losses in solution were 29% lower on average, compared with pasture. Overall losses for each element were statistically similar for pastures. In comparison, arable fields showed greater average losses for five essential elements (15.3%) compared to pasture (9.7%). Nickel exhibited the greatest average loss (27% overall; 39% for arable) and zinc the lowest (2% overall; 3% for arable). The predominant loss of cadmium was in the dissolved phase (96% overall; 92% arable), followed by selenium (81%/63%), nickel (64%/35%) and copper (61%/34%). Conversely, dissolved losses of manganese (38%/21%) and zinc (28%/8%) were lower than particulate losses. We conclude that overall loss, and form of the loss, varies significantly between arable and pastoral systems, and the physico-chemical properties of the element itself.

PMID:39626187 | DOI:10.1080/09593330.2024.2423907

J Addict Med. 2024 Dec 3. doi: 10.1097/ADM.0000000000001429. Online ahead of print.

ABSTRACT

OBJECTIVES: The aim of this study is to determine the difference, if any, in prevalence of wounds in individuals who were exposed to xylazine and fentanyl compared to individuals who were exposed to fentanyl and not xylazine.

METHODS: A large inpatient substance use disorder specialty hospital provided medical records over an 8-month period from July 2023 to February 2024. Individuals were admitted to an American Society of Addiction Medicine 3.7 level of care where a urine drug screen and skin assessment was conducted on admission. If the urine screen noted a presence of fentanyl, the sample was then tested for xylazine exposure. Patients were considered positive for wounds on admission to treatment if any wound was noted during the skin assessment during the admission process.

RESULTS: A total of 282 medical records were identified. A chi square test of association was completed and revealed a statistically significant association between xylazine exposure and wounds (P = 0.002, odds ratio = 2.420, 95% confidence interval = 1.376-4.254).

CONCLUSIONS: This study provides early support for the previously theorized connection between xylazine exposure and wounds.

PMID:39626182 | DOI:10.1097/ADM.0000000000001429

Menopause. 2024 Dec 3. doi: 10.1097/GME.0000000000002452. Online ahead of print.

ABSTRACT

OBJECTIVES: Postmenopausal women are at higher risk of metabolic syndrome and cardiovascular disease, which are aggravated by obesity. Although estrogen provides cardiometabolic protection, chronic high-dose treatment could be harmful. This study investigated the efficacy of combined N-acetylcysteine (NAC) and low-dose estrogen treatment against cardiometabolic dysfunction in female estrogen-deprived obese rats with cardiac ischemia-reperfusion (I/R) injury.

METHODS: Bilateral ovariectomized (O) female Wistar rats were fed a high-fat diet (H) for 12 weeks. Then, rats were treated for 4 weeks with one of the following: vehicle (OH; sesame oil), regular-dose estrogen (E; 50 μg/kg/d), low-dose estrogen (e; 25 μg/kg/d), NAC (N; 100 mg/kg/d), or combined low-dose estradiol with NAC (eN). All rats then underwent cardiac I/R injury, and the left ventricle (LV) function and mitochondrial function were investigated (n = 6/group). Statistical analysis was performed by one-way ANOVA followed by Fisher’s least significant difference post hoc test.

RESULTS: Body weight, visceral fat, plasma glucose, and plasma cholesterol were significantly increased with impaired LV function and heart rate variability in OH rats. OH-E rats had decreased plasma insulin and Homeostatic Model Assessment for Insulin Resistance index. Both OH-E and OH-eN rats had similarly improved heart rate variability and LV function. During cardiac I/R, OH-E and OH-eN rats had preserved left ventricular ejection fraction, stroke volume, and attenuated arrhythmias. Impaired cardiac mitochondrial function and infarct size were similarly reduced in OH-E and OH-eN rats.

CONCLUSIONS: Combined NAC and low-dose estrogen treatment shares similar efficacy as regular-dose estrogen in attenuating cardiac dysfunction, cardiac mitochondrial dysfunction, and protecting the heart against I/R injury in estrogen-deprived obese insulin-resistant rats.

PMID:39626181 | DOI:10.1097/GME.0000000000002452

Kidney360. 2024 Dec 3. doi: 10.34067/KID.0000000670. Online ahead of print.

ABSTRACT

BACKGROUND: The prevalence of depression is high in the chronic kidney disease (CKD) (20-40%) and dialysis (30-50%) populations. Less is known about how depressive symptoms change over time in patients with CKD.

METHODS: Participants in the Brain in Kidney Disease (BRINK) cohort study completed a depressive symptom questionnaire (PHQ-9) and serum creatinine testing annually. We used linear mixed effects models to examine changes in PHQ-9 scores over time and compared rates of change between participants with different ranges of eGFR impairment and those with normal eGFR.

RESULTS: At baseline, 147 participants had normal eGFR, 424 had impaired eGFR without dialysis dependence, and 31% reported a diagnosis of depression, with a mean baseline PHQ-9 score of 4.3. Participants were followed for up to 5 years. After adjustment for factors associated with depression, mean PHQ-9 scores decreased (improved) by 0.25 points per year (95% confidence interval [CI] 0.07, 0.42) among participants with normal eGFR (>60 ml/min/1.73m2) and by 0.35 points (95% CI 0.14, 0.56), 0.30 points (95% CI 0.13,0.46) and 0.42 points (95% CI 0.06, 0.77) among participants with eGFR of 45 to 59 ml/min/1.73m2, 30 to 44 ml/min/1.73m2, and participants who developed dialysis dependence, respectively. PHQ-9 scores among participants with eGFR <30 ml/min/1.73m2 did not change significantly. We did not observe any statistically significant differences in mean change in PHQ-9 score between participants with any degree of eGFR impairment and those with normal eGFR, nor between participants with dialysis-dependence and those with eGFR of ≤15 ml/min/1.73m2. Participants with a PHQ-9 score ≥5 had 80% greater odds of immediate study attrition than participants with a PHQ-9 score of 0-4.”

CONCLUSIONS: The mean PHQ-9 scores of participants were largely stable over time, and we observed no differences in the change in PHQ-9 scores between those with impaired eGFR and those with normal eGFR.

PMID:39625788 | DOI:10.34067/KID.0000000670

West J Emerg Med. 2024 Nov;25(6):993-999. doi: 10.5811/westjem.18513.

ABSTRACT

OBJECTIVE: Food insecurity is a prevalent social risk among emergency department (ED) patients. Patients who may benefit from food insecurity resources may be identified via ED-based screening; however, many patients experience difficulty accessing resources after discharge. Co-locating resources in or near the ED may improve utilization by patients, but this approach remains largely unstudied. This study characterized the acceptance and use of a food voucher redeemable at a hospital food market for patients who screened positive for food insecurity during their ED visit.

METHODS: This prospective cohort study, conducted at a single county-funded ED, included consecutive adult patients who presented on weekdays between 8 AM-8 PM from July-October 2022 and consented to research participation. We excluded patients who required resuscitation on arrival or could not provide written informed consent in English. Study participants completed a paper version of the two-question Hunger Vital Sign screening tool, administered by research staff. Participants who screened positive received a uniquely numbered $30 food voucher redeemable at the hospital’s co-located food market. Voucher redemption was quantified through regular evaluation of market receipt records at 30-day intervals. The primary outcome was the proportion of redeemed vouchers. Secondary outcomes included the proportion of participants screening positive for food insecurity, proportion of participants accepting vouchers, and associated descriptive statistics.

RESULTS: Of the 396 eligible individuals approached, 377 (95.2%) consented and completed food insecurity screening. Most were middle-aged (median 53 years, interquartile range 30-58 years), 191 were female (50.4%), 242 were Black (63.9%), and 343 were non-Hispanic (91.0%). Of the participants, 228 (60.2%) screened positive for food insecurity and 224 received vouchers (98.2%), of which 86 were redeemed (38.4%) a median of nine days after the ED visit.

CONCLUSION: A high proportion of participants screened positive for food insecurity and accepted food vouchers; however, less than half of all vouchers were redeemed at the co-located food market. These results imply ED food voucher distribution for food insecurity is feasible, but co-location of resources alone may be insufficient in addressing the social risk and alludes to a limited understanding of facilitators and barriers to resource utilization following ED-based social needs screening.

PMID:39625774 | DOI:10.5811/westjem.18513

West J Emerg Med. 2024 Nov;25(6):975-984. doi: 10.5811/westjem.18586.

ABSTRACT

INTRODUCTION: The workload of physicians increased due to the number of patients presenting with suspicion of coronavirus 2019 (COVID-19) and the prolonged wait times in the emergency department during the COVID-19 pandemic. Signal peptide-CUB-EGF domain-containing protein 1 (SCUBE-1) is a protein present in platelets and endothelial cells; it is activated by inflammation from COVID-19 and may be associated with COVID-19’s known thrombotic risk. We aimed to determine whether SCUBE-1 levels are diagnostically correlated in suspected COVID-19 patients, and whether SCUBE-1 correlated with severity of disease and, therefore, might be useful to guide hospitalization/discharge decisions.

METHODS: The suspected COVID-19 patients cared for at tertiary healthcare institutions for one year between May 2021-May 2022 were examined in this study. The subjects were both suspected COVID-19 patients not ultimately found to have COVID-19 and those who were diagnosed with COVID-19. By modifying the disease severity scoring systems present in COVID-19 guidelines in 2021, the COVID-19-positive patient group was classified as mild, moderate, severe, and critical, and compared using the SCUBE-1 levels. Moreover, SCUBE-1 levels were compared between the COVID-19 positive group and the COVID-19 negative group.

RESULTS: A total of 507 patients were considered for the present study. After excluding 175 patients for incomplete data and alternate comorbid organ failure. we report on 332 patients (65.5%). Of these 332 patients, 80 (24.0%) were COVID-19 negative, and 252 (76.0%) were COVID-19 positive. Of 252 (100%) patients diagnosed with COVID-19, 74 (29.4%) were classified as mild, 95 (37.7%) moderate, 45 (17.8%) severe, and 38 (15.1%) critical. The SCUBE-1 levels were statistically different between COVID-19 positive (8.48 ± 7.42 nanograms per milliliter [ng/mL]) and COVID-19 negative (1.86 ± 0.92 ng/mL) patients (P < 0.001). In the COVID-19 positive group, SCUBE-1 levels increased with disease severity (mild = 3.20 ± 1.65 ng/mL, moderate = 4.78 ± 2.26 ng/mL, severe = 13.68 ± 3.95 ng/mL, and critical = 21.87 ± 5.39 ng/mL) (P < 0.001). The initial SCUBE-1 levels of discharged patients were significantly lower than those requiring hospitalization (discharged = 2.89 ng/mL [0.55-8.60 ng/mL]; ward admitted = 7.13 ng/mL [1.38-21.29 ng/mL], and ICU admitted = 21.19 ng/mL [10.58-37.86 ng/mL]) (P < 0.001).

CONCLUSION: The SCUBE-1 levels were found to be differentiated between patients with and without COVID-19 and to be correlated with the severity of illness.

PMID:39625772 | DOI:10.5811/westjem.18586

West J Emerg Med. 2024 Nov;25(6):966-974. doi: 10.5811/westjem.17998.

ABSTRACT

INTRODUCTION: We aimed to assess antibiotic stewardship by quantifying the use of first-dose intravenous (IV) vs oral-only antibiotics and the frequency with which antibiotic class was changed for discharged patients. Secondary aims included the following: evaluation of the relative length of stay (LOS); differences in prescribing patterns between clinician types; differences between academic and community settings; assessment of prescribing patterns among emergency department (ED) diagnoses; and frequency of return visits for patients in each group.

METHODS: This was a retrospective cohort study including patients presenting to EDs with infections who were discharged from our Midwest healthcare system consisting of 17 community hospitals and one academic center. We included infection type, antibiotic class and route of administration, type of infection, LOS, return visit within two weeks, clinician type, and demographics. Data were collected between June 1, 2018-December 31, 2021 and analyzed using descriptive statistics.

RESULTS: We had 77,204 ED visits for patients with infections during the study period, of whom 3,812 received IV antibiotics during their visit. There were more women (62.4%) than men included. Of the 3,812 patients who received IV antibiotics, 1,026 (34.3%) were discharged on a different class of antibiotics than they received. The most common changes were from IV cephalosporin to oral quinolone or penicillin. Patients treated with IV antibiotics prior to discharge had a longer LOS in the ED (median difference of 102 minutes longer for those who received IV antibiotics). There was not a significant difference in the use of IV antibiotics between the academic center and community sites included in the study.

CONCLUSION: Administering IV antibiotics as a first dose prior to oral prescriptions upon discharge is common, as is shifting classes from the IV dose to the oral prescription. This offers an opportunity for intervention to improve antibiotic stewardship for ED patients as well as reduce cost and length of stay.

PMID:39625771 | DOI:10.5811/westjem.17998

West J Emerg Med. 2024 Nov;25(6):917-920. doi: 10.5811/westjem.18579.

ABSTRACT

INTRODUCTION: Previous studies have shown that patients in the emergency department (ED) are frequently given incomplete discharge instructions that are written at least four grade levels above the recommended sixth-grade reading level, leading to poor understanding. Our aims in this study were to implement standardized discharge instructions containing six key components written at a more appropriate reading level for common emergency department (ED) diagnoses to improve patient understanding.

METHODS: We conducted this study in a 20-bed ED at an urban Veteran’s Administration hospital. Data was collected via in-person patient and clinician interviews. Patient interviews were conducted after patients received their discharge instructions. We compared patient responses to clinician responses and marked them as incorrect, partially correct, or correct with a score of 0, 0.5, or 1, respectively. The maximum possible score for each interview was six. Six key components of discharge instructions were asked about: diagnosis; new medications; at-home care; duration of illness; reasons to return; and follow-up. There were 25 patients in the pre-intervention group and 20 in the intervention group with the standardized set of instructions. We performed a Mann-Whitney U test on the total interview scores in the control and intervention groups and conducted a sub-analysis on the individual scores for each of the six key components.

RESULTS: The patients in the intervention demonstrated a statistically significant increase in patient-clinician correlation when compared to the patients in the pre-intervention group overall (P < 0.05), and two of the six key components of the discharge instructions individually showed statistically significant increase in patient-clinician correlation when standardized discharge instructions were used.

CONCLUSION: Patients who received the standardized discharge instructions had improved understanding of their discharge instructions. Future opportunities extending off this pilot study include expanding the number of diagnoses for which standardized instructions are used and investigating patient-centered outcomes related to these instructions.

PMID:39625764 | DOI:10.5811/westjem.18579

West J Emerg Med. 2024 Nov;25(6):907-912. doi: 10.5811/westjem.24863.

ABSTRACT

INTRODUCTION: Coronavirus 2019 (COVID-19) accelerated the need for virtual learning including telesimulation. Many emergency medicine (EM) programs halted in-person simulation and trialed telesimulation, but specifics on its utilization and plans for future use are unknown. Telesimulation has been defined as “a process by which telecommunication and simulation resources are utilized to provide education, training, and/or assessment to learners at an off-site location.” Our objective in this study was to describe the patterns of telesimulation usage in EM residency programs during COVID-19-induced learning restrictions as well as its anticipated future utility.

METHODS: We identified EM simulation leaders via the EMRA Match website, institutional websites, or personal contact with residency coordinators and directors, and invited them to participate by email. Participants completed a confidential, web-based survey consisting of multiple-choice items and one free-response question, developed by our study team with consideration of survey research best practices and Messick’s validity framework. We collected data between January-February 2022. We calculated descriptive statistics for multiple-choice items and examined the free-response answers for common themes.

RESULTS: We obtained contact information for simulation leaders at 139 EM residency programs. Survey response rate was 65% (91/139). During in-person restrictions, 62% (56/91) of programs used telesimulation. Assuming all restrictions lifted, 38% (34/90) of respondents planned to continue to use telesimulation, compared to 9% (8/91) using telesimulation before COVID-19. Most respondents planned to use telesimulation for medical knowledge (26/34, 76%) and communication/teamwork-focused cases (23/34, 68%). In response to the free-response question regarding experience with and plans for use, we identified three major themes: 1) telesimulation is a valuable alternative to in-person learning; 2) telesimulation is an option for learners unable to participate in person; and 3) telesimulation is challenging for procedural education.

CONCLUSION: Despite the relatively limited use of telesimulation in EM residencies prior to COVID-19, an increased number of programs have plans to continue incorporating telesimulation into their curricula. This plan for continued use opens opportunities for further innovation and scholarship within simulation education.

PMID:39625762 | DOI:10.5811/westjem.24863

West J Emerg Med. 2024 Nov;25(6):883-889. doi: 10.5811/westjem.18468.

ABSTRACT

INTRODUCTION: Coronavirus 2019 (COVID-19) has had a devastating impact on mental health and access to addiction treatment in the United States, including in California, which resulted in the highest rates of emergency department visits (ED) for opioid poisoning in 2020. As California slowly returns to pre-pandemic normalcy, it remains uncertain whether the rates of opioid-related events have slowed down over time. We hypothesized that the number of opioid-related ED visits were exacerbated after the period of the COVID-19 pandemic and continue at a high rate in the present.

METHODS: In this analysis we searched the University of California (UC) Health Data Warehouse-a database of electronic health records from six academic medical centers-for opioid related ED visits, identifiying using the following International Classification of Diseases, 10^th Ed, Clinical Modification codes: F11 codes, and T40.0*, T40.1*, T40.2*, T40.3*, T40.4*, T40.6*. Opioid overdose-associated visits were classified by types of opioids involved: heroin (T40.1*); prescription opioids (T40.2* or T40.3*); and synthetic opioids (T40.4*). We performed interrupted time analysis to estimate the immediate (level) change and change-in-time trend (trend change), from before (January 2018-October 2019) and during the pandemic (April 2020-December 2022). Monthly visit rates were evaluated with negative binomial regression adjusted for first-order autoregression and using all-cause ED counts as the offset. We present effect sizes as rate ratios (RR) and 95% confidence intervals (CI), tested at α = .05.

RESULTS: We observed a decrease in overall ED visits from 28,426 to 25,121 visits in December 2019 and June 2021, respectively across all six UC Health Centers. Before COVID-19, we found that ED visit rates steadily increased for all outcomes (P < 0.05) except synthetic opioids. Total opioid-related ED visit rates increased by 15% (RR 1.15, 95% CI 1.02-1.29, P = 0.20) immediately after March 2020 before decreasing by 0.5% every month, albeit without statistical significance (RR .995, 95% CI .991-1.00, P = 0.06). Opioid-related events across the six academic medical centers increase from 232 in December 2019, representing a single month’s total, and peaked at 315 in June 2021. Similar trends were observed with prescription opioid overdoses, with a step increase of 44% (RR 1.44, 95% CI 1.10-1.89, P = .008) before plateauing after March 2020 (RR 1.01, 95% CI .998-1.02, P = 0.12). Specifically, the total number of prescription opioid-related ED visits more than doubled between December 2019 (22 visits) and June 2021 (49 visits). After March 2020, ED visit rates for synthetic opioid overdoses were increasing steadily by 4% every month (RR 1.04, 95% CI 1.02-1.06, P = .001), unlike with heroin, which was observed with an 8% monthly reduction (RR .92, 95% CI .90-.93, P < .001). No immediate increase in visit rates was observed for either opioid.

CONCLUSION: While opioid-related ED admissions among the UC health centers showed an overall decrease, prescription and synthetic opioid overdoses remained significantly higher than pre-pandemic trends as of December 2022. A multilevel approach to improve awareness of new opioid health policies could ameliorate these alarming rises in the post-pandemic era.

PMID:39625758 | DOI:10.5811/westjem.18468