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Awareness during anaesthesia. A prospective study
British Journal of Anaesthesia
|August 1, 1977
Summary
This study found no instances of patient awareness during anesthesia when using a nitrous-oxide-oxygen technique with neuromuscular blockade. The type of premedication did not affect these results, indicating a reliable anesthesia method.
Area of Science:
- Anesthesiology
- Neuroscience
Background:
- Intraoperative awareness is a rare but significant complication during general anesthesia.
- Maintaining adequate depth of anesthesia is crucial to prevent awareness.
Purpose of the Study:
- To evaluate the incidence of intraoperative awareness in patients undergoing anesthesia with a nitrous-oxide-oxygen technique and neuromuscular blockade.
- To determine if premedication influences the occurrence of awareness.
Main Methods:
- A cohort of 138 patients received anesthesia using a nitrous-oxide-oxygen technique combined with neuromuscular blockade.
- Standard monitoring and anesthetic conditions were maintained throughout the procedures.
- Patients were assessed post-operatively for any evidence of awareness.
Main Results:
- No patients (0%) in the study group exhibited any signs or evidence of intraoperative awareness.
- The findings remained consistent across all patients, regardless of the premedication administered.
- The nitrous-oxide-oxygen technique with neuromuscular blockade proved effective in preventing awareness.
Conclusions:
- The combination of nitrous-oxide-oxygen and neuromuscular blockade is a highly effective method for preventing intraoperative awareness.
- Premedication does not appear to be a critical factor in preventing awareness with this anesthetic technique.