Publications by authors named "Lewis Nelson"

In the initial wave of the opioid crisis, uninformed prescribing practices and lax oversight were the drivers of opioid addiction and death. Although opioid prescriptions have decreased by 44.4 percent between 2011-2020, the number of deaths linked to prescription opioids has decreased only marginally.

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  • This study reviews trends in buprenorphine use in emergency departments (EDs) from 2014 to 2021 to understand its role in reducing opioid overdose risks and improving treatment access.
  • There were nearly 342,000 ED visits with administered buprenorphine, showing no significant change over time, but a notable increase (233%) in buprenorphine prescriptions at discharge between 2019 and 2020.
  • The findings suggest EDs served as crucial support for addiction treatment during the COVID-19 pandemic, highlighting a need for further research on the barriers to buprenorphine use.
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  • Buprenorphine is a safe and effective treatment for opioid use disorder (OUD), but opioid withdrawal during the start of treatment can lead to patients dropping out of care.
  • Recent shifts in the drug supply, particularly the rise of fentanyl, have heightened concerns about withdrawal symptoms being triggered by buprenorphine, yet some studies report low incidence rates of such incidents.
  • This study aimed to evaluate the occurrence of buprenorphine-precipitated withdrawal (PW) in patients and examine various factors that may influence its likelihood, using data from patients at three hospitals in Philadelphia treated between 2020 and 2021.
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  • Buprenorphine is typically given sublingually for opioid withdrawal, but when that's not possible, intravenous (IV) or intramuscular (IM) methods can be effective alternatives despite limited practitioner experience in this area.
  • A case series reviewed patient charts from an urban hospital who received parenteral buprenorphine between January 2020 and December 2021, focusing on demographics, medical and substance use histories, and withdrawal outcomes.
  • Out of eight patients studied, the majority responded positively to the treatment, showing improvement in withdrawal symptoms, especially in cases with issues like delirium; no adverse effects were reported, indicating promise for this method in future applications.
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  • This study reviewed opioid exposures in young children, specifically looking at data from America's Poison Centers® between 2016 and 2023, to assess the impact of fentanyl and medications for opioid use disorder.
  • Out of 34,632 reports, most exposures (96.7%) were unintentional, with a median age of exposure being 2 years. While overall reported exposures decreased by 57.5%, there was a concerning 300% increase in deaths and major effects.
  • The study emphasizes the importance of improving poisoning prevention strategies, as medications like buprenorphine and methadone showed a significant association with severe effects, alongside rising cases of fentanyl and heroin exposure.
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More than 20 years that have elapsed since the inaugural American College of Medical Toxicology Spring Conference in 2002. During this time, the now ACMT Annual Scientific Meeting has grown in many ways, as demonstrated by the increase in attendance and abstract submissions, and diversification of educational offerings, and partners. Most importantly, the scientific rigor and presentation of new knowledge has continued to mature, and the conference is now firmly rooted in the annual educational schedule for medical toxicologists.

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Background: Gabapentinoids increasingly utilized for neuropathic pain, possibly to curb opioid prescribing. At the same time, data suggest subsequent increases in misuse and overdose of gabapentinoids, often in mixed overdoses. We sought to determine national trends and characteristics of gabapentinoid prescribing, including co-use with opioids, from the emergency department (ED).

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  • Thallium is a toxic metal, and this case details a young man who intentionally ingested elemental thallium purchased online, leading to dangerously high serum and urine thallium levels.
  • The patient was treated with Prussian blue, a medication that binds to thallium, after having the ingested metal fragment removed via colonoscopy.
  • Despite initial severe thallium levels that typically indicate fatal exposure, the patient showed no signs of toxicity after 23 days in the hospital, highlighting a need for more research on the effects of elemental thallium versus thallium salts.
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This retrospective study analyzed 230 pediatric opioid exposures from a statewide poison control center over a 5-year period. Most exposures involved pharmaceutical opioids and children below 2-years-old. Narrative details were reviewed to identify uncommon sources of opioids involved in poisoning and highlight the need for tailored prevention strategies and guidance.

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Objectives: Benzodiazepines are commonly misused medications frequently implicated in overdose deaths. Data show that benzodiazepine prescribing is associated with increased misuse. We sought to determine national trends in benzodiazepine prescribing from the emergency department (ED).

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Background: Academic emergency medicine (EM) is foundational to the EM specialty through the development of new knowledge and clinical training of resident physicians. Despite recent increased attention to the future of the EM workforce, no evaluations have specifically characterized the U.S.

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Background And Objectives: There has been little research in an urban population regarding knowledge of harm reduction measures and treatment options. The objective of our study was to evaluate knowledge and perceptions of harm reduction measures and types of treatment available for opioid use disorder among patients and family in an urban emergency department (ED) waiting room.

Methods: We conducted a single center, cross-sectional survey study that occurred between September 2021 and August 2022.

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The American Society of Addiction Medicine (ASAM) has published clinical practice guidelines (CPGs) since 2015. As ASAM's CPG work continues to develop, it maintains an organizational priority to establish rigorous standards for the trustworthy production of these important documents. In keeping with ASAM's mission to define and promote evidence-based best practices in addiction prevention, treatment, and recovery, ASAM has rigorously updated its CPG methodology to be in line with evolving international standards.

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Used as a veterinary sedative and not approved for human use, xylazine has been increasingly linked with opioid overdose deaths in the United States. A growing number of people have been exposed to xylazine in the illicit opioid supply (especially fentanyl) or in other drugs, particularly in some areas of the Northeast. Xylazine is an α-2 adrenergic agonist that decreases sympathetic nervous system activity.

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: Concurrent alcohol intoxication can complicate emergency department (ED) presentations for opioid-related adverse events. We sought to determine if there was a difference in resource utilization among patients who presented to the ED with concurrent opioid and alcohol intoxication compared to opioid intoxication alone. : Using linked state-wide databases from the Maryland Healthcare Cost and Utilization Project (HCUP), we identified patients with a diagnosis of opioid intoxication treated in the ED from 2016 to 2018.

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Background: Nalmefene is a potent opioid antagonist that has recently been reintroduced in the United States to treat known or suspected opioid overdose.

Nalmefene Clinical Trial Data: The injection formulation, which had been withdrawn in 2008, was reintroduced in 2022, and in 2023 the United States Food and Drug Administration approved a new intranasal formulation of nalmefene. Because nalmefene had been previously approved for use in 1995 via injection, the new intranasal formulation did not require new clinical data as it was approved under an Abbreviated New Drug Application.

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Background: In 2016, the U.S. Food and Drug Administration (FDA) issued its strongest safety warning ("Black Box Warning") for concomitant use of prescription opioids and benzodiazepines due to overdose deaths.

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