Comparing Train-of-Four Recovery in the Adductor Pollicis Versus the Adductor Digiti Minimi in Elective Surgery Patients

The study population will enroll adult patients (>18) who will receive non-depolarizing neuromuscular blocking drugs as part of a routine general anesthetic and who will have monitoring of their recovery from neuromuscular block performed using the Tetragraph (Senzime Sweden). Patients with upper limb weakness, neurological deficits, and inability to use the other arm to record the second EMG recording will be excluded.

Procedures (methods):

Adult patients undergoing general anesthesia with the use of muscle relaxants will have anesthesia monitors on both of their arms. On one arm, the study sticky pad will be placed on the forearm and over the base of the little finger. On the other arm, the standard monitor is placed on the forearm and over the base of the thumb.

To identify pre-operative patients, an EPIC report will be utilized to screen for eligible participants. Patients will be contacted via phone by a research team member the day before their procedure and enrolled. Informed consent will be formally obtained on the day of the procedure.

Inclusion criteria

• Surgery and general anesthesia with administration of non depolarizing neuromuscular blocking drug

Exclusion criteria

• neuromuscular disease or weakness of one of upper limbs.
• Inability to use one of subjects arms to record neuromuscular monitor.
• Contraindication to administration or allergy to non depolarizing neuromuscular blocking drug.