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Agitation is common in gamma-hydroxybutyrate toxicity
Deborah L Zvosec1, Stephen W Smith
1Department of Emergency Medicine, Hennepin County Medical Center, Minneapolis Medical Research Foundation, MN 55404, USA. dzvosec@hotmail.com
The American Journal of Emergency Medicine
|May 26, 2005
Summary
Gamma-Hydroxybutyrate (GHB) toxicity often presents with agitation and bizarre behaviors, not just sedation. Recognizing these diverse symptoms is crucial for accurate diagnosis and treatment of GHB intoxication.
Area of Science:
- Toxicology
- Emergency Medicine
- Psychiatry
Background:
- Gamma-Hydroxybutyrate (GHB) is typically characterized as a central nervous system depressant.
- Clinical descriptions often focus on somnolence, obtundation, stupor, and coma (SOSC).
- The full spectrum of GHB intoxication symptoms may be underrecognized.
Purpose of the Study:
- To document the diverse clinical presentations of GHB toxicity.
- To highlight the occurrence of agitation and other nonsedative effects.
- To broaden the understanding of GHB intoxication beyond CNS depression.
Main Methods:
- Observational study of 66 patients with confirmed or suspected GHB toxicity.
- Clinical data collection on presenting symptoms, including agitation and SOSC.
- Toxicological screening for GHB and co-intoxicants (stimulants) via gas chromatography/mass spectrometry and history.
Main Results:
- 40 out of 66 patients (60.6%) exhibited agitation.
- Agitation occurred before, after, alternating with, or exclusively without SOSC.
- Fourteen patients displayed "bizarre" or self-injurious behaviors.
- GHB was detected in 25 cases; 12 of these patients showed agitation, with 4 negative for stimulants.
- Co-intoxicants were identified in 19 agitated patients.
Conclusions:
- GHB toxicity encompasses a wider range of clinical presentations than previously recognized.
- Agitation, combativeness, and self-injurious behaviors are significant manifestations of GHB intoxication.
- Clinicians should consider nonsedative effects in the differential diagnosis of GHB toxicity.