Atracurium for short surgical procedures: a comparison with succinylcholine

Area of Science:

• Anesthesiology
• Pharmacology

Background:

• Neuromuscular blocking agents are essential in anesthesia.
• Succinylcholine is commonly used for short procedures but has contraindications.
• Atracurium offers an alternative with a different pharmacokinetic profile.

Purpose of the Study:

• To compare the efficacy and safety of atracurium and succinylcholine for short gynecological procedures.
• To evaluate intubating conditions, muscle relaxation, and recovery times.
• To assess the suitability of atracurium as an alternative to succinylcholine.

Main Methods:

• A comparative study involving 40 patients undergoing short gynecological procedures (≤30 minutes).
• Administration of atracurium (400 mcg/kg) or succinylcholine (1 mg/kg) for intubation and muscle relaxation.
• Assessment of intubating conditions, duration of muscle relaxation, and recovery of neuromuscular function using train-of-four stimulation.

Main Results:

• Atracurium produced good intubating conditions in 198 ± 84 seconds, while succinylcholine achieved this in 76.7 ± 39.3 seconds.
• Mean surgical times were comparable: 17.65 ± 5.3 minutes for atracurium and 15.2 ± 4.6 minutes for succinylcholine.
• Neuromuscular block with atracurium was reversed effectively with neostigmine and atropine, with recovery in 5.05 ± 4.6 minutes.

Conclusions:

• Atracurium (400 mcg/kg) is suitable for intubation and maintaining muscle relaxation in short surgical procedures.
• The onset of action for atracurium is slower compared to succinylcholine.
• Atracurium is a viable alternative to succinylcholine, especially when succinylcholine is unsuitable or contraindicated, with effective reversal of residual block.