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Learn about the prevalence, dangers, and clinical syndromes of inhalant abuse in the adolescent population. Discover the pathophysiology, signs, and treatments, as well as prevention resources for this concerning issue.
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Inhalant Use in the Adolescent Population Angela L. Godejohn LCDR, MC, USN
Background Incidence Pathophysiology Clinical syndrome Acute intoxication syndrome Chronic inhalant use Treatment Prevention resources Inhalant Abuse
Terminology • Sniffing • Inhaling vapors from an open container or off a heated pan • Huffing • Inhaling vapors from a volatile-soaked cloth held against the face • Bagging • Application of the volatile into a paper or plastic bag, which is then held over the face
Common Household Inhalants • Glue, shoe polish, tolune (30%) • Gasoline or lighter fluid (25%) • Nitrous oxide or “whippets” (25%) • Spray paints (23%) • Other aerosols (18%) • Correction fluid, degreaser, or cleaning fluid (18%) • Amyl nitrate, “poppers”, locker room deodorizers or “rush” (15%) • Lighter gases, butane, propane (9%) National Survey on Drug Use and Health: Characteristics of Recent Adolescent Inhalant Initiates; Issue 11, 2006
Trends in inhalant use National Drug Intelligence Center; National Drug Threat Assessment 2005
ER related visits from inhalant abuse National Drug Intelligence Center; National Drug Threat Assessment 2005
Percentage of teens that agree that sniffing or huffing to get high can cause brain damage National Drug Intelligence Center; National Drug Threat Assessment 2005
Pathophysiology • Highly lipid soluble • Easily cross both alveolar membranes and blood-brain barrier • Avoids first pass hepatic metabolism • Accumulates in brain tissue • Exact mechanism of action is unknown • Potentiates the effects of GABA and dopamine
Pathophysiology • Inhaled concentrations depend on route of administration • Bagging > Huffing > Sniffing • Elimination occurs primarily through the lungs • Alkyl nitrites, aromatics, methylene chloride undergo hepatic metabolism leading to toxic by-products of free nitrites and carbon monoxide
Clinical Syndromes • Acute intoxication • Sense of intoxication similar to alcohol or marijuana
Clinical Syndromes • Chronic inhalant abuse • Withdrawal syndrome • Can develop symptoms similar to delerium tremens
Cardiovascular Effects • “Sudden Sniffing Death” • Sensitize heart to effects of catecholamine • Fatal arrhythmias, especially if user is startled while inhaling • Can happen on first use
Pulmonary Effects • Hypoxia • Chemical pneumonitis • Bronchospasm • Pulmonary edema • Hemorrhagic • Non cardiogenic • Pneumothorax • Cyanosis of extremities • Methemoglobinemia
Signs of Inhalant Use • Recurrent epistaxis • Rhinorrhea • Watery eyes, conjunctival injection • Oral or peri-oral lesions • Facial rash “Glue sniffers” rash • Unusual chemical odor of breath • Burns • Paint stains on clothing • Change in personality or behavior
Evaluation • Cardiopulmonary monitoring • 12 lead EKG • Chest radiograph • Laboratory evaluation • Complete blood count • Complete metabolic panel • Urinalysis, • Urine drug screen
Treatment • Removal from the source of volatile inhalant • Supportive care • Supplemental oxygen • Management of arrhythmias as per ACLS protocols • Epinephrine and other catecholamines can induce or worsen arrhythmias due to sensitization of myocardium
Death and Disability • Toxic Exposure Surveillance System (TESS) Database of the American Association of Poison Control centers • 1996 to 2001 • 11,670 cases reported of intentional volatile substance abuse • 15% age 6 to 12 • 54% age 13 to 19
Death and Disability • Clinical effects • 20% of cases (2330) had serious outcome • Moderate effect- systemic signs or symptoms requiring treatment but not life threatening (2000; 85%) • Major effect- life threatening symptoms or significant residual disability (267; 11%) • Death (63; 3%)
Death and Disability • Gasoline, air fresheners, butane, and propane responsible for most deaths • Death rate probably underestimated • Virginia recorded 39 deaths between 1987 and 1996 due to volatile inhalants • (Drug Alcohol Depend 1999 Feb; 53(3): 239-45) • Gasoline responsible for 46% of deaths • Extrapolated data using TESS • 200 deaths per year • Similar to death rates reported in the UK
Prevention and Resources • National Inhalant Prevention Coalition (www.inhalants.com) • National Institute on Drug Abuse (www.nida.nih.gov) • The Partnership for a Drug Free America (www.drugfreeamerica.org) • Alliance for Consumer Education (www.inhalant.org)