Intubating Condition After Magnesium Pre-treatment

Status Completed

Clinical Trial Summary

Magnesium had an inhibitory effect on neuromuscular transmission and caused a decrease in muscle fiber membrane excitability. It reduces the amount of acetylcholine that is released at the motor nerve terminal by decreasing the calcium conductance of presynaptic voltage-dependent calcium channels. After pre-treatment with magnesium, an increased speed of onset and a prolongation of the recovery period of neuromuscular blockade have been observed with other non-depolarizing neuromuscular blocking agent (NMBA) such as atracurium, vecuronium and rocuronium. Rocuronium is the currently preferred NMBA used as an alternative to succinylcholine for rapid tracheal intubation. As an alternative to succinylcholine, high doses of NMBA have been tested for rapid sequence intubation. This excessively high dose of rocuronium, however, prolongs the duration of the neuromuscular block and this may not be warranted in every surgical setting.

The reduction of onset time of rocuronium by magnesium pre-treatment can make intubation condition more rapid and much better clinically. It will thus be interesting to compare intubation conditions of a standard intubation dose of rocuronium after magnesium pre-treatment with high dose of rocuronium or standard dose of rocuronium.

Clinical Trial Description

n/a

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator)

Related Conditions & MeSH terms

Easy of Laryngoscopy Manipulation
Heart Rate
Mean Arterial Pressure
Patient Reaction to Intubation and Cuff Inflation
Vocal Cord Position or Movement

Clinical Trial Details

NCT number	NCT01153256
Study type	Interventional
Source	Seoul National University Bundang Hospital
Contact
Status	Completed
Phase	N/A
Start date	December 2010
Completion date	March 2011

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