Huffing-induced cardiomyopathy: a case report

Abstract

The intentional inhalation of fumes from gasoline or solvents for recreational purposes is commonly known as Huffing, Sniffing or Dusting (Anderson and Loomis in Am Fam Physician 68(5):869-874, 2003). Inhalant abuse is known to be "Cardio-toxic", causing sudden death and chronic myocardial damage (Meadows and Verghese in South Med J 89(5):455-462, 1996; Anderson and Loomis in Am Fam Physician 68(5):869-874, 2003). We report a 20-year-old white man who presented with altered mental status following ingestion of multiple alprazolam and oxycodone tablets. He was found to have diffused ST-T changes on his EKG. Cardiac enzymes were found to be elevated-CK: 599 U/L, CK-MB: 16.8 ng/mL and Troponin: 0.78 ng/mL. A transthoracic echocardiogram (TTE) revealed global left ventricular (LV) dysfunction with an ejection fraction (EF) of 10-15%. During hospitalization, the cardiac enzymes started trending downward and this was followed by spontaneous resolution of the LV dysfunction. The patient also admitted to inhaling "Dust-Off" spray 2-3 days prior to admission. Inhalant abuse can cause cardiomyopathy and should be considered a probable cause in patients presenting with cardiac dysfunction of unknown etiology, particularly in teenagers and young adults.