Incense Poisoning: Toddler's Seizures Linked to Common Household Fragrance
A three-year-old girl from New York City was urgently transported to the hospital after experiencing seizures, later traced to chronic poisoning from a common household fragrance product. The incident underscores significant health risks associated with unregulated incense use, particularly in enclosed spaces.
Emergency Response and Diagnosis
The child, whose identity remains confidential, was brought to the emergency room following her first seizure, which lasted approximately five minutes. Her mother reported witnessing the toddler collapse while walking toward the kitchen, prompting immediate medical intervention. Seizures involve uncontrolled neuronal firing in the brain, disrupting normal functions, reducing oxygen supply, and potentially killing cells.
Initially, the girl was moved to the pediatric intensive care unit (PICU) for observation and showed signs of normal recovery. However, within hours, she suffered two additional seizures, leading doctors to conduct an electroencephalogram (EEG) to measure brain activity. While the EEG results were normal, blood tests revealed alarmingly high levels of salicylates at 19 mg/dL, indicating salicylate toxicity.
Understanding Salicylate Toxicity
Salicylates are compounds derived from salicylic acid, found naturally in plant-based foods like willow bark and berries, as well as in over-the-counter medications such as aspirin and Pepto-Bismol. In low doses, they are generally safe, but elevated levels can lead to severe health issues. For adults, a safe threshold is around 30 mg/dL, but even lower concentrations can be fatal for children due to their weaker immune systems.
Salicylate toxicity manifests through symptoms like respiratory failure, seizures, lethargy, and dehydration. In this case, an investigation of the toddler's home uncovered that incense sticks were regularly burned in her bedroom. These sticks contained salicylate concentrations of 10 to 20 percent, likely causing the chronic intoxication.
Chronic Exposure and Health Implications
Doctors from NYC Health + Hospitals in Harlem diagnosed the girl with chronic salicylate intoxication, a condition resulting from prolonged ingestion or inhalation of salicylates. They noted that blood tests might not accurately measure chronic exposure, suggesting the actual burden on her body could be more severe than indicated. Salicylates can accumulate in tissues beyond the blood-brain barrier, causing inflammation, reducing cell function, and potentially leading to seizures.
Furthermore, these compounds can be absorbed by vital organs such as the stomach, liver, kidneys, lungs, and heart, raising the risk of multi-organ failure. The medical team emphasized in the American Journal of Case Reports that chronic salicylate intoxication is associated with higher mortality compared to acute ingestions, making it particularly dangerous for children and the elderly.
Regulatory Gaps and Public Health Warnings
The U.S. Food and Drug Administration (FDA) does not strictly regulate incense ingredients since these products are not classified as food, drugs, or cosmetics. Consequently, manufacturers are not required to list all components, leaving consumers unaware of potential hazards. Incense typically contains wood powders like sandalwood, essential oils, spices, and herbs, but some brands may include carcinogens such as formaldehyde and benzene, linked to increased risks of leukemia, nasal cancer, and lymphoma.
A 2009 study found that incense burning can trigger wheezing episodes in children with asthma, adding to the health concerns. While limited evidence suggests potential benefits, such as anti-inflammatory effects from frankincense and myrrh resins in mice, the risks often outweigh any perceived advantages. Most incense sticks burn for 60 to 90 minutes, increasing exposure in poorly ventilated areas.
Recommendations for Prevention
Medical experts advise that a detailed environmental history, including prolonged incense use in enclosed spaces, should be considered for any child presenting with unexplained seizures and acid-base imbalances. They call for better labeling on incense products regarding salicylate content and potential toxicity to prevent similar incidents. Public awareness is crucial, as many households use these fragrances without recognizing the hidden dangers they pose to vulnerable populations.
