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Cocaine absorption from the nasal mucosa.
Anaesthesia
|May 1, 1988
Summary
Adding adrenaline to nasal cocaine significantly reduced cocaine absorption through the nasal mucosa. Cardiovascular effects remained comparable between groups receiving cocaine alone or with adrenaline during nasal surgery.
Area of Science:
- Pharmacology
- Otolaryngology
- Anesthesiology
Background:
- Nasal cocaine is used for routine nasal surgery.
- Understanding cocaine absorption and its effects is crucial for patient safety.
Purpose of the Study:
- To compare cocaine absorption from the nasal mucosa when administered alone versus with adrenaline.
- To assess the impact of adrenaline on cardiovascular parameters during nasal surgery.
Main Methods:
- Serial plasma analysis was used to measure cocaine absorption in patients undergoing nasal surgery.
- Two groups were studied: one received cocaine alone, the other received cocaine with adrenaline (1:1000).
- Pulse rate and blood pressure were monitored in both groups.
Main Results:
- Intranasal administration of cocaine with adrenaline resulted in significantly lower plasma cocaine levels compared to cocaine alone.
- No significant differences in pulse rate or blood pressure were observed between the two groups.
Conclusions:
- Adrenaline co-administration reduces systemic absorption of intranasal cocaine.
- The addition of adrenaline to nasal cocaine does not appear to alter cardiovascular responses during routine nasal surgery.