Comparing Ease of Endotracheal Intubation Using C Blade and D Blade of CMAC Videolaryngoscope in Patients Undergoing Elective Cervical Spine Surgery
Study Details
Study Description
Brief Summary
This study was done to compare the ease of tracheal intubation using the conventional C blade and the D blade of CMAC videolaryngoscope in patients undergoing cervical spine surgery.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Detailed Description
Manual in-line stabilisation is used to immobilise the neck during endotracheal intubation in patients undergoing cervical spine surgery to prevent secondary spinal cord damage. This makes visualisation of the glottis difficult with conventional laryngoscopy which can be overcome with videolaryngoscope. CMAC Videolaryngoscope has the conventional blade (C blade) and the highly angulated D blade which was introduced to aid in difficult airway. This study was done to compare the ease of tracheal intubation using the conventional C blade and the D blade of CMAC videolaryngoscope in patients undergoing cervical spine surgery.
Methodology: After Institutional Ethics Committee approval and obtaining informed consent, 68 patients undergoing elective cervical spine surgery were randomised into 2 groups - C (intubated with C blade) or D (intubated with D blade) (n=34 each) by computer generated randomisation. After induction of general anaesthesia, manual in-line stabilisation of the cervical spine was achieved and intubation was attempted by experienced anaesthesiologist with the C blade or D blade according to the group. The time taken for successful intubation, time taken for optimum glottic visualisation, the number of attempts, additional manouvres required for successful intubation and the incidence of complications were compared.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Active Comparator: Group C Group of patients intubated with C blade of CMAC videolaryngoscopes |
Procedure: Intubation with C blade
Intubation with C blade of CMAC videolaryngoscope
|
| Active Comparator: Group D Group of patients intubated with D blade of CMAC videolaryngoscope |
Procedure: Intubation with D blade
Intubation with D blade of CMAC videolaryngoscope
|
Outcome Measures
Primary Outcome Measures
- Time taken for successful intubation [During procedure]
Comparing the time taken for successful intubation using the C blade and D blade of CMAC videolaryngoscope in patients with manual in-line stabilisation of the cervical spine
Secondary Outcome Measures
- Time taken to obtain the best Cormack-Lehane grade [During procedure]
Comparing the time taken to obtain the best Cormack-Lehane grade using the C blade and D blade of CMAC videolaryngoscope in patients with manual in-line stabilisation of the cervical spine
- Number of attempts, external manouvres, complications [During procedure]
Comparing the number of attempts for successful endotracheal intubation, external manoeuvres or adjuncts required, complications caused using the C blade and D blade of CMAC videolaryngoscope in patients with manual in-line stabilisation of the cervical spine
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Patients with ASA (American Society of Anaesthesiology) grade one and two,
-
aged 18 years and older,
-
Patients with mouth opening more than two and a half fingers (inter-incisor distance
3cm)
Exclusion Criteria:
-
Patients who were unwilling to be a part of the study,
-
patients with any oral pathology, hiatus hernia, pregnant women,
-
patients with severe systemic diseases
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Seth GSMC and KEM Hospital | Mumbai | Maharashtra | India | 400012 |
Sponsors and Collaborators
- King Edward Memorial Hospital, Mumbai
Investigators
- Principal Investigator: Sandhya N Narayanan P, MD, Seth GSMC and KEMH Mumbai
Study Documents (Full-Text)
None provided.More Information
Publications
- Hazarika H, Saxena A, Meshram P, Kumar Bhargava A. A randomized controlled trial comparing C Mac D Blade and Macintosh laryngoscope for nasotracheal intubation in patients undergoing surgeries for head and neck cancer. Saudi J Anaesth. 2018 Jan-Mar;12(1):35-41. doi: 10.4103/sja.SJA_239_17.
- Sinha R, Ray BR, Sharma A, Pandey RK, Punj J, Darlong V, Trikha A. Comparison of the C-MAC video laryngoscope size 2 Macintosh blade with size 2 C-MAC D-Blade for laryngoscopy and endotracheal intubation in children with simulated cervical spine injury: A prospective randomized crossover study. J Anaesthesiol Clin Pharmacol. 2019 Oct-Dec;35(4):509-514. doi: 10.4103/joacp.JOACP_106_18.
- EC/182/2018