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Acute phencyclidine intoxication: clinical patterns, complications, and treatment
Annals of Emergency Medicine
|June 1, 1981
Summary
Acute phencyclidine (PCP) intoxication presents with major clinical patterns like brain syndrome and toxic psychosis, often requiring hospitalization. Minor patterns typically involve milder symptoms, though injuries and complications can still occur.
Area of Science:
- Toxicology
- Emergency Medicine
- Psychiatry
Background:
- Phencyclidine (PCP) is a dissociative drug with a complex spectrum of clinical effects.
- Understanding the varied clinical presentations of PCP intoxication is crucial for effective management.
Purpose of the Study:
- To categorize and describe the major and minor clinical patterns of acute phencyclidine intoxication.
- To determine the incidence of specific clinical findings within each pattern.
Main Methods:
- Retrospective analysis of clinical data from patients presenting with acute phencyclidine intoxication.
- Classification of intoxication into major and minor clinical patterns based on observed symptoms and severity.
Main Results:
- Four major patterns identified: acute brain syndrome (24.8%), toxic psychosis (16.6%), catatonic syndrome (11.7%), and coma (10.6%).
- Minor patterns included lethargy/stupor (3.8%) and combinations of behavioral changes in alert patients (32.5%).
- Major patterns were associated with higher rates of hospitalization and complications, including injuries (16%), aspiration pneumonia (1.0%), and rhabdomyolysis (2.2%).
Conclusions:
- Acute PCP intoxication manifests in distinct major and minor clinical syndromes.
- Severity dictates the need for hospitalization and the likelihood of complications, highlighting the importance of accurate pattern recognition for patient care.