Comparison of the TOFscan and the TetraGraph During Recovery of Neuromuscular Function

Comparison of the TOFscan and the TetraGraph During Recovery of Neuromuscular Function : a Pilot Study

Assess the values of train-of-four ratios with the TetraGraph and thoses obtained with the TOFscan during recovery of neuromusculat function in surgical patients who have been administred rocuronium.

Primary outcome : value of TOFratio with the TetraGraph when TOFratio of TOFscan is greater than or equal to 90% Pilot study : no hypothesis

Inclusion Criteria:

• age greater than or equal to 18 years old
• patients willing to participate and provide an informed consent
• elective surgical procedures, without emergency, administration of rocuronium for neuromuscular blockade, and recovery of complete neuromuscular function at the end of the surgery

Exclusion Criteria:

• patients with unilateral disorders, such as stroke, carpal tunnel syndrome, broken wrist with nerve damage, Dupuytren contracture, or similar wrist injury
• patients with systemic neuromuscular diseases such as myasthenia gravis
• renal insufficiency or renal failure
• significant liver disease
• patients having surgery that would involve prepping the arm into the sterile field
• allergy to rocuronium