Intubating Condition
Conditions
Keywords
Rocuronium, magnesium, priming, ketamine, intubation
Brief summary
In this study, methods which are known for facilitating rapid sequence intubation or accelerating rocuronium (Roc)onset are compared including magnesium (Mg), ketamine pretreatment, large dose rocuronium and priming.
Detailed description
Patients are pretreated with Mg, ketamine, or priming dose Roc. Two groups do not receive pretreatment, but are given Roc 0.6 mg/kg or 0.9 mg/kg.
Interventions
Patients receive MgSO4 50 mg/kg for 10 min before injection of Roc 0.6 mg/kg.
patients receive ketamine 0.5 mg/kg 2 min before Roc injection.
Patients receive Roc 0.06 mg/ kg as a priming dose 3 min before injection of Roc 0.54 mg/kg.
Sponsors
Study design
Eligibility
Inclusion criteria
* age 18 - 65 years, * ASA 1 - 2, * patients scheduled for elective surgery under general anesthesia, * BMI 18.5-24.9 kg/m2 * Mallampati class I-II
Exclusion criteria
* neuromuscular disorder, * cardiac/hepatic/renal insufficiency, * pregnant. * anticipated difficult airway * medications that influence neuromuscular transmission
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Intubation score | participants will be followed at the time point of intubation, an expected average of 70 sec from the start of rocuronium injection. | Patients are tracheally intubated, and intubation scores(poor, good,excellent)are rated. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Roc duration | participants will be followed when TOF count reaches two, an expected average of 40 min. | Time from the start of rocuronium injection until reappearance of two muscle twitches in TOF stimulations is measured, using ToF-Watch sx. |
| Roc onset | participants will be followed when TOFcount =0 within an expected average of 4 min from the start of rocuronium injection. | Time from the start of rocuronium injection until TOF count=0 using TOF-Watch sx. |
| Hemodynamic variables | participants will be followed at baseline, before and for 5 min after the intubation, an expected average of 8 min after the start of anesthetic induction. | Mean arterial pressure (MAP)and heart rate (HR) are measured at baseline, before intubation, and 1, 2, 3, 4, 5 min after intubation. |
| TOF% at intubation | participants will be followed at the time point of intubation, an expected average of 70 sec from the start of rocuronium injection. | neumeric value expressed as %, displayed on the monitor of TOF watch-Sx in TOF stimulation (ex. 5% on the display means 95% suppression of T1) |
Countries
South Korea