Persisting visual hallucinations and illusions in previously drug-addicted patients

Détails

ID Serval
serval:BIB_BA790DFB3B76
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Etude de cas (case report): rapporte une observation et la commente brièvement.
Collection
Publications
Titre
Persisting visual hallucinations and illusions in previously drug-addicted patients
Périodique
Klinische Monatsblatter fur Augenheilkunde
Auteur(s)
Gaillard  M. C., Borruat  F. X.
ISSN
0023-2165 (Print)
Statut éditorial
Publié
Date de publication
03/2003
Volume
220
Numéro
3
Pages
176-8
Notes
Case Reports
Journal Article --- Old month value: Mar
Résumé
BACKGROUND: Tetrahydrocannabinol (cannabis) and lysergic acid diethylamide (LSD) are psychomimetic agents that induce impairment of sensory perception. Illusions and hallucinations are mostly visual. Most frequently the visual phenomena occur in conjunction with drug abuse. PATIENTS AND METHODS: Three previously drug-addicted patients were examined for either persisting or spontaneously recurrent visual phenomena. Two patients complained of persisting visual illusions (vibrations, dyskinetopsia and impaired depth perception) during more than 12 months after an excessive use of cannabis. The third patient was a multiple drug abuser (LSD for 6 years) and complained of visual hallucinations and palinopsia following heavy ethanol intake, 20 years after stopping the use of any drug. RESULTS: Results from neuro-ophthalmic and neurological examinations were normal for the first two patients. The third patient presented abnormal visual fields with preserved visual acuity; electroencephalography was abnormal, suggesting an underlying toxic encephalopathy. CONCLUSIONS: Persistent visual illusions or hallucinations can occur during several months after an intake of cannabis. Flash-back phenomena are frequent amongst LSD abusers. They rarely occur at long times after the last intake (20 years in the present case); when they do so, precipitating factors are often present (ethanol, medication, anesthesia). Such phenomena reflect the cortical dysfunctions that can be induced by illegal substances.
Mots-clé
Adolescent Adult Alcohol Drinking/adverse effects Chronic Disease Female Follow-Up Studies Hallucinations/*chemically induced/diagnosis Hallucinogens/*adverse effects Humans Lysergic Acid Diethylamide/*adverse effects Male Marijuana Abuse/*complications/rehabilitation Optical Illusions/*drug effects Substance Withdrawal Syndrome/*diagnosis Substance-Related Disorders/*complications/rehabilitation Tetrahydrocannabinol/*adverse effects
Pubmed
Web of science
Création de la notice
28/01/2008 12:38
Dernière modification de la notice
20/08/2019 15:28
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