Acceleromyography as a guide to anesthetic management: a case report

Area of Science:

• Anesthesiology
• Pharmacology

Background:

• Neuromuscular blocking agents like mivacurium are used in anesthesia.
• Residual neuromuscular block can complicate patient recovery and extubation.
• Objective monitoring is crucial for safe patient management post-surgery.

Observation:

• A patient experienced an unusually long recovery period after receiving mivacurium.
• Neuromuscular function was monitored using acceleromyography.
• Attempted reversal of the neuromuscular block was performed.

Findings:

• Acceleromyography provided objective data on neuromuscular recovery.
• The train-of-four (TOF) fade ratio was used to assess the degree of neuromuscular block.
• Without objective monitoring, extubation might have occurred when the TOF ratio was below the safe threshold of 0.40.

Implications:

• Objective neuromuscular monitoring is vital for safe tracheal extubation after mivacurium administration.
• Acceleromyography aids in preventing extubation failures due to residual neuromuscular blockade.
• This case highlights the importance of quantitative neuromuscular assessment in clinical practice.