Mindray Neuromuscular Transmission Transducer (NMT1)

Suez Canal University

Status: Completed

Conditions: Neuromuscular Blockade

Treatments: Device: MMG

Study type: Observational

Funder types: Other

Identifiers

NCT02892045

NMT1

Details and patient eligibility

About

A new NMT module from Mindray (Mindray Co. Shenzhen, People's Republic of China.) claims to measure 3 directional accelerography. The aim of the study is to compare the neuromuscular block of rocuronium 0.6 mg/kg (twice the 95% effective dose, ED95) monitored by the NMT versus that monitored by the Relaxometer Mechanomyograph on the other hand in Group 1, and versus the TOF-Watch on the other hand in Group 2 to clinically evaluate the new system for its diagnostic accuracy.

Full description

Mechanomyography (MMG) is regarded as the standard method for precise quantification of neuromuscular block. The conventional MMG measures the exact force of muscle contraction in response to electric stimulation of the ulnar nerve. MMG quantifies the neuromuscular function by measurement of the force displacement. However the equipment is rather bulky, takes time to set up, requires a rigid support of the arm in an often-crowded operating room. This limits its clinical use in the daily anesthesia practice. Acceleromyography is based on the acceleration of a piezo-electrode. A new NMT module from (Shenzhen, People's Republic of China.) claims to measure 3 directional accelerography. The aim of the study is to compare the neuromuscular block of rocuronium 0.6 mg/kg (twice the 95% effective dose, ED95) monitored by the NMT to that monitored by the Relaxometer Mechanomyograph in Group 1, and versus TOF-Watch Acceleromyograph in Group 2 to clinically evaluate the new system for its diagnostic accuracy.

Enrollment: 48 patients

Sex: All

Volunteers: No Healthy Volunteers

Inclusion criteria

• 24 patients with Mindray NMT monitoring on one hand versus MMG Mechanomyograph on the other hand in Group 1 with both hands accessible in supine position alternately right and left hands monitoring neuromuscular block of rocuronium neuromuscular blocking agent 0.6 mg/kg
• 24 patients with Mindray NMT monitoring one hand versus TOF-Watch Acceleromyograph on the other hand in Group 2 with both hands accessible in supine position alternately right and left hands monitoring neuromuscular block of rocuronium neuromuscular blocking agent 0.6 mg/kg.

Exclusion criteria

• Both hand inaccessible in supine position, patients receiving drugs interfering with rocuronium neuromuscular block, or patients with small joint arthritis that could affect neuromuscular monitoring.

Trial design

48 participants in 2 patient groups

MMG versus Mindray NMT

Description:

24 patients where Mindray NMT is monitoring one hand versus Mechanomyograph on the other hand accessible in supine position, alternately right and left hands monitoring neuromuscular block of rocuronium neuromuscular blocking agent 0.6 mg/kg.

Treatment:

Device: MMG

TOFWatch versus Mindray NMT

Description:

24 patients where Mindray NMT is monitoring one hand versus TOF-Watch Acceleromyograph on the other hand accessible in supine position, alternately right and left hands monitoring neuromuscular block of rocuronium neuromuscular blocking agent 0.6 mg/kg