Publications by authors named "Brent Jeffery"

Article Synopsis
  • The American College of Medical Toxicology's Toxicology Investigators Consortium has been maintaining a national case registry since 2010, documenting patient consultations in hospitals and clinics regarding medical toxicology.
  • In 2023, the registry recorded data from 7,392 patients, bringing the total number of cases since its inception to 102,331 across 36 sites with 61 healthcare facilities.
  • Ethanol emerged as the most common exposure agent in 2023, followed by opioids and non-opioid analgesics, with a reported 98 fatalities (1.3% case fatality rate) and analyses of demographics and trends in toxicology consultations.
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Introduction: To characterize and compare opioid-only, cocaine-only, methamphetamine-only, opioid-and-cocaine exposure, and opioid-and-methamphetamine exposure and to examine clinical presentations, leading to a better understanding of overdose effects involving these drug exposures.

Methods: We examined drug exposures in the Toxicology Investigators Consortium (ToxIC) Core Registry from January 2010 to December 2021, a case registry of patients presenting to participating healthcare sites that receive a medical toxicology consultation. Demographic and clinical presentations of opioid-only, cocaine-only, methamphetamine-only, and opioid-and-cocaine exposure, and opioid-and-methamphetamine exposure consultations were described; differences between single and polydrug exposure subgroups were calculated to determine statistical significance.

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Article Synopsis
  • The Toxicology Investigators Consortium (ToxIC) Core Registry was established in 2010 to collect data on medical toxicology consultations, with the 2021 report including 8,552 new cases.
  • The report presents detailed information on patient demographics, the reasons for consultations, types of agents involved, clinical symptoms, treatments provided, and fatalities, finding that 120 cases resulted in death.
  • Key findings indicate non-opioid analgesics were the most commonly reported substances, with acetaminophen being the most frequent agent, while fentanyl led to the highest number of fatalities; trends in demographics and exposure characteristics largely mirrored previous years.
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The Toxicology Investigators Consortium (ToxIC) Registry was established by the American College of Medical Toxicology in 2010. The registry collects data from participating sites with the agreement that all bedside and telehealth medical toxicology consultation will be entered. This eleventh annual report summarizes the Registry's 2020 data and activity with its additional 6668 cases.

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The Toxicology Investigators Consortium (ToxIC) Registry was established by the American College of Medical Toxicology (ACMT) in 2010. The Registry collects data from participating sites with the agreement that all bedside medical toxicology consultation will be entered. This tenth annual report summarizes the Registry's 2019 data and activity with its additional 7177 cases.

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Article Synopsis
  • Severe QT prolongation (SQTP) indicates a higher risk of serious heart problems in people who have overdosed on drugs, but the specific drugs that cause this effect have not been well defined until now.
  • A comprehensive study involving over 50 hospitals in the US from 2015 to 2018 analyzed data from 25,303 patients, finding that SQTP occurred in 13% of those screened, with specific drugs significantly increasing this risk.
  • The study identified several drug categories linked to SQTP, including some antidepressants, antipsychotics, and specific antidysrhythmics, highlighting the need for healthcare providers to closely monitor cardiac health in patients who overdose on these medications.
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The Toxicology Investigators Consortium (ToxIC) Registry was established by the American College of Medical Toxicology (ACMT) in 2010. The Registry collects data from participating sites with the agreement that all bedside medical toxicology consultation will be entered. The objective of this ninth annual report is to summarize the Registry's 2018 data and activity with its additional 7043 cases.

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The aim of this study to the estimate the lead concentrations in the blood of the adult population in South Khorasan Province, evaluate factors related to high lead blood concentrations and establish lead reference values (RVs) in our study population. In cross-sectional study, 400 people who lived in the province of South Khorasan in 2017 were selected. Demographic information was collected and clinical examinations were performed.

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Background: Lead, one of the most widely used metals because of its beneficial physical properties, has been reported to adversely influence several different organs and organ systems. The aim of the present study was to examine the effect of lead exposure on liver and renal function and haematologic parameters.

Methods: This was a case-cohort study comparing adults with occupational, environmental or opium-related lead exposure with blood lead levels [BLL] >10 μg/dL (High blood lead level (HBLL) group and age- and gender-matched normal healthy individuals (Low blood lead level [LBLL] group with BLL <10 μg/dL).

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Introduction: Synthetic cannabinoid (SC) abuse has resulted in numerous outbreaks of severe clinical illness across the United States over the past decade. The primary objective of this study was to determine the clinical characteristics of patients abusing SC requiring bedside consultation by medical toxicologists.

Methods: This was a multicenter analysis from a prospectively collected cohort of patients presenting to medical care after synthetic cannabinoid exposure, utilizing the ToxIC Registry.

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The structures of two facially coordinated Group VII metal complexes, fac-[ReCl(C10H8N2O2)(CO)3]·C4H8O (I·THF) and fac-[MnBr(C10H8N2O2)(CO)3]·C4H8O (II·THF), are reported. In both complexes, the metal ion is coordinated by three carbonyl ligands, a halide ligand, and a 6,6'-dihy-droxy-2,2'-bi-pyridine ligand in a distorted octa-hedral geometry. Both complexes co-crystallize with a non-coordinating tetra-hydro-furan (THF) solvent mol-ecule and exhibit inter-molecular but not intra-molecular hydrogen bonding.

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