Influence of the Neuromuscular Blockade on Mask Ventilation
Study Details
Study Description
Brief Summary
Mask ventilation during induction of anesthesia can be improved by administration of neuromuscular blocking agents (NMBAs). NMBAs are usually administered after testing mask ventilation; however, muscle relaxants may improve mask ventilation and they do not alter mask ventilation. Thus, growing evidence suggests to administer muscle relaxants before testing mask ventilation. We will study different dosages of rocuronium; we assume that higher dosages of rocuronium will improve mask ventilation compared with lower dosages.
Condition or Disease | Intervention/Treatment | Phase |
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N/A |
Detailed Description
Mask ventilation during induction of anesthesia can be improved by administration of neuromuscular blocking agents (NMBAs). NMBAs are usually administered after testing mask ventilation; however, muscle relaxants may improve mask ventilation and they do not alter mask ventilation. Thus, growing evidence suggests to administer muscle relaxants before testing mask ventilation.We will administer rocuronium 0.3 mg/kg, 0.6 mg/kg, 0.9 mg/kg and saline (placebo group) before starting with mask ventilation. We will grade mask ventilation based on various scores before and after rocuronium application. Afterwards patient's tracheas will be intubated. We assess risk factors for difficult mask ventilation.
We hypothesize that rocuronium 0.9 mg/kg will be superior to rocuronium 0.3 mg/kg and saline.
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Active Comparator: Rocuronium 0.3 mg/kg Patients receive rocuronium 0.3 mg/kg |
Drug: Rocuronium 0.3 mg/kg
Patients receive rocuronium 0.3 mg/kg
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Active Comparator: Rocuronium 0.6 mg/kg Patients receive rocuronium 0.6 mg/kg |
Drug: Rocuronium 0.6 mg/kg
Patients receive rocuronium 0.6 mg/kg
Other Names:
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Active Comparator: Rocuronium 0.9 mg/kg Patients receive rocuronium 0.9 mg/kg |
Drug: Rocuronium 0.9 mg/kg
Patients receive rocuronium 0.9 mg/kg
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Placebo Comparator: Placebo Patients receive saline |
Drug: Placebo
Patients receive saline
Other Names:
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Outcome Measures
Primary Outcome Measures
- Incidence of improved mask ventilation after rocuronium administration [Two minutes after rocuronium administration]
Graded with various scores
Eligibility Criteria
Criteria
Inclusion Criteria:
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patients with ASA I-III
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required tracheal intubation
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informed consent
Exclusion Criteria:
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known allergy against anesthetics
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known difficult airway
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | Department of Anesthesia and Intensive Care Medicine, University of Rostock | Rostock | Mecklenburg/Vorpommern | Germany | 18057 |
Sponsors and Collaborators
- University of Rostock
Investigators
- Principal Investigator: Thomas Mencke, Prof., University of Rostock
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- A 2014 1212