Addiction in Intensive Cardiac Care Units

The following illicit drugs will be evaluated for all consecutive patients by urine drug assay (NarcoCheck®, Kappa City Biotech SAS, Montluçon, France) within two hours of admission to the ICCU: i) cannabinoids (tetrahydrocannabinol \[THC\]), including cannabis and hashish; ii) cocaine and metabolites, including cocaine and crack; iii) amphetamines; iv) MDMA; and v) heroin and other opioids. In addition to the analysis of psychoactive drug use, the investigators will also use the NarcoCheck® urine drug assay to evaluate the associated use of the following psychostimulant drugs: barbiturates, benzodiazepines, tricyclic antidepressant drugs, methadone and buprenorphine.

Tobacco consumption will also be evaluated for each patient using a Fagerström questionnaire.

Active smoking will also be systematically investigated in all patients using a standardized exhaled carbon monoxide (CO) measurement with a CO-Check Pro device (Bedfont Scientific Ltd, Kent, UK) on arrival, with a measure of \> 3 parts per million (ppm) signifying active smoking.