Publications by authors named "Peter B Chase"

Context: Synthetic cannabinoid use has increased in many states, and medicinal and/or recreational marijuana use has been legalized in some states. These changes present challenges to law enforcement drug recognition experts (DREs) who determine whether drivers are impaired by synthetic cannabinoids or marijuana, as well as to clinical toxicologists who care for patients with complications from synthetic cannabinoids and marijuana. Our goal was to compare what effects synthetic cannabinoids and marijuana had on performance and behavior, including driving impairment, by reviewing records generated by law enforcement DREs who evaluated motorists arrested for impaired driving.

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Objective: The goal of this study was to analyze trends in the annual rates of reported medical outcomes of cottonmouth (Agkistrodon piscivorus) snakebites in the United States, published in the annual reports of the American Association of Poison Control Centers in the course of 29 years.

Methods: This was a retrospective analysis of medical outcomes for cottonmouth snakebite victims who developed fatal, major, moderate, minor, or no effects. The annual rates for these medical outcomes were calculated by dividing the annual number of patients in each outcome category by the total annual number of people reported as being bitten by cottonmouths.

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Background: Envenomation by pit vipers is associated with coagulation disorders including hypofibrinogenemia and thrombocytopenia. These abnormalities correct following antivenom treatment during the acute phase of the disease. Delayed or recurrent coagulation abnormalities have been reported following use of Fab antivenom, resulting in risk of hemorrhage or death.

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Objective: Hazmat disaster preparedness is critical, especially as Hong Kong prepares for major international events, such as the 2008 Olympic Equestrian Games. No published medical study describes the identities and quantities of hazardous materials (HMs) in Hong Kong and lists what antidotes are needed for these dangerous goods (DGs). This study describes what HMs are most common in Hong Kong to prioritize disaster preparedness and training.

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The present pilot study compared the ability of a conventional patient complaint-driven approach to that of nucleic-acid amplification testing (NAAT) of urine to identify those individuals among an adult, urban, Emergency Department (ED) population infected with Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), and Trichomonas vaginalis (TV). Urine for NAAT was collected for testing after individuals had completed a questionnaire and before being seen by a physician. A total of 614 subjects were enrolled, and complete physical examinations were performed on 348 (56.

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Article Synopsis
  • Normobaric supplemental oxygen can prolong seizures, while hyperbaric oxygen therapy may also induce seizures, but the exact mechanism is unclear.
  • Researchers hypothesized that pretreatment with pyridoxine could delay seizure onset induced by hyperbaric oxygen, since pyridoxine works as an antidote for certain seizures caused by poisons.
  • A study involving rats found no significant difference in seizure onset time between those treated with pyridoxine and those in the control group, suggesting that pyridoxine pretreatment does not affect seizure timing during hyperbaric oxygen therapy.
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Mortality due to snake envenomation is not a major problem in the United States with approximately 8-12 deaths per year, but envenomation is a serious problem that can result in functional disability, loss of extremities, and a costly recovery. Physicians encounter different clinical situations with each new snakebite victim because of the geographical variations in snake venoms. The best and most acceptable form of treatment is the use of antivenom; however, it must be administered as soon as possible since it is not so effective at reducing local signs of envenomation such as necrosis.

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Unlabelled: Droperidol (DROP) is used in the emergency department (ED) for sedation, analgesia, and its antiemetic effect. Its ED safety profile has not yet been reported in patients (pts).

Objectives: To document the use of DROP in high-risk pts (those with head injury, alcohol or cocaine intoxication, and/or remote or recent seizures), and to determine the number of serious and minor adverse events (AEs)-seizures, hypotension, extrapyramidal side effects (EPSEs)-after DROP.

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Allergic reactions are the most commonly reported adverse events after administration of antivenoms. Conventional horse serum-based crotalid antivenom used in the United States (Antivenin [Crotalidae] polyvalent) can lead to both immediate and delayed hypersensitivity reactions. Crotalidae polyvalent immune Fab (ovine) (CroFab; FabAV) has recently been approved for use in the United States.

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