A 37-year-old male with prior medical history of profound developmental delay experienced seizure and cardiac arrest following ingestion of 6 ounces of a 40% N, N-diethyl-meta-toluamide (DEET) containing solution. The patient was unresponsive, acidemic, tachycardic and hypotensive on presentation. Over three hospital days, the patient's vitals recovered to baseline but he remained unresponsive and areflexic with fixed and dilated pupils. Non-contrast brain magnetic resonance imaging showed cerebral edema, transtentorial and tonsillar herniations. A rapid, simple and sensitive high-performance liquid chromatography (HPLC) method was utilized for the analysis of postmortem plasma blood and urine samples of a lethal case of DEET intentional ingestion. The method combined the use of C18 SepPak cartridges for solid phase extraction and reversed-phase HPLC. One urine and five blood samples from this patient were analyzed for DEET concentration. Mixtures of serum/urine postcentrifuge were eluted and reduced to 1 mL using a solvent evaporator. Blood in ethylenediaminetetraacetic acid (EDTA), whole blood, serum, blood with heparin and urine DEET concentrations were 9.84, 9.21, 10.18, 8.66dl and 0.642 mg/dL, respectively. All samples were collected <1 h postingestion. Although seizures and cardiac toxicity have been described in other case reports, this case is atypical due to the exceptional dose ingested and the timing of the fluid test samples being drawn so soon following exposure. Although a widely used and extremely safe insect repellent, DEET can be highly toxic in large but easily obtainable doses.
Concentrated laundry pods have been reported to cause significant clinical effects including oropharyngeal burns and respiratory distress requiring intubation. Dermal burns have been reported, but no incidents of serious isolated dermal injury have been published. We report a case of significant, isolated dermal injury as a result of dermal exposure to a concentrated laundry detergent pod. Total body surface area partial thickness burns in this case were estimated at approximately 2 % with an additional 4-5 % of total body surface area (TBSA) displaying superficial burns/chemical dermatitis. Health-care providers should be aware of this complication and should perform thorough dermal decontamination in the event of an exposure. Parents should be educated regarding the dangers associated with dermal exposure to laundry pod compounds and the need to secure these items away from children as well as proper decontamination techniques should an exposure occur.
Background Lindane is a possible carcinogen with known teratogenicity and immunologic and neurotoxic properties. Despite reports of seizures, coma, and death associated with its use as well as banning of its environmental use by the Environmental Protection Agency (EPA), the US Food and Drug Administration (FDA) still allows treatment with lindane as a second-line scabicide and pediculicide. We present a case of a massive suicidal ingestion of lindane in which the patient survived the ingestion, though he did expire shortly thereafter from an unrelated cause pre-discharge. Methods Pharmacokinetic analysis of serum lindane concentrations was performed with Phoenix® WinNONLIN®. The estimated distribution half-life for lindane was 10.3 h, and the terminal half-life was 162.9 h, much longer than the previously reported terminal half-life of 25-36 h. Because of this long half-life, repeated lindane exposures may lead to accumulation of lindane in the tissues.Result After overdose, toxicity may be delayed and full recovery may be prolonged.
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