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Priming with nondepolarizing relaxants for rapid tracheal intubation: a double-blind evaluation
R K Baumgarten1, C E Carter, W J Reynolds
1Anesthesia and Operative Service, Landstuhl Army Regional Medical Center, FRG.
Canadian Journal of Anaesthesia = Journal Canadien D'Anesthesie
|January 1, 1988
Summary
Priming with nondepolarizing relaxants improved intubation conditions compared to single bolus administration. However, priming did not match succinylcholine
Area of Science:
- Anesthesiology
- Pharmacology
Background:
- Intubation conditions are critical for patient safety during anesthesia.
- Nondepolarizing relaxants are commonly used for muscle relaxation.
- Priming sequences are investigated to optimize intubation conditions.
Purpose of the Study:
- To evaluate intubation conditions using priming sequences of nondepolarizing relaxants.
- To compare priming sequences with single bolus administration and succinylcholine.
Main Methods:
- Controlled, randomized, double-blind trials were conducted in three phases.
- Different priming sequences of tubocurarine, atracurium, and vecuronium were administered.
- Intubation conditions were assessed at 60 seconds post-administration.
Main Results:
- Priming sequences significantly improved intubation conditions compared to single bolus administration.
- Priming conditions were not as consistently excellent as those achieved with succinylcholine.
- A four-minute priming interval was found to be as effective as a seven-minute interval.
Conclusions:
- Priming with nondepolarizing relaxants offers an advantage over single bolus administration for intubation.
- Succinylcholine remains a benchmark for excellent intubation conditions.
- Future studies should utilize randomized, double-blind designs with succinylcholine controls.