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A Comparative Study Between Video Laryngoscope and Video Stylet for Tracheal Intubation in Patients With Simulated
1Anaesthesiology, Jawaharlal Nehru Medical College Hospital, Aligarh Muslim University, Aligarh, IND.
Cureus
|September 9, 2024
Summary
The C-MAC video laryngoscope demonstrated a higher first-attempt intubation success rate and shorter procedure times compared to the Karl Storz video stylet in patients with simulated cervical fractures. Both devices showed comparable safety profiles.
Area of Science:
- Anesthesiology
- Medical Devices
- Airway Management
Background:
- Video laryngoscopes are increasingly used for difficult airways.
- The Karl Storz video stylet offers potential advantages in managing cervical spine fractures.
- Comparative performance data for new devices in simulated cervical fracture scenarios are needed.
Purpose of the Study:
- To compare the C-MAC video laryngoscope (CM) with the Karl Storz video stylet (VS) for intubation in patients with simulated cervical fracture injuries.
- To evaluate intubation success rates, time, and complications associated with each device.
Main Methods:
- A prospective randomized controlled study involving 50 adult patients (ASA Grades I-II) undergoing elective surgery.
- Patients were randomly assigned to intubation with either the C-MAC (N=25) or Karl Storz video stylet (N=25) under general anesthesia with manual neck stabilization.
- Key parameters recorded included intubation attempts, time, hemodynamic changes, and complications.
Main Results:
- First-attempt intubation success was 100% for C-MAC versus 92% for Karl Storz video stylet (p=0.4915).
- Mean intubation time was significantly shorter for C-MAC (27.24 ± 2.16s) compared to Karl Storz video stylet (30.84 ± 6.81s) (p=0.0105).
- Both devices exhibited similar safety profiles with minimal complications and no significant difference in blood on the device.
Conclusions:
- The C-MAC video laryngoscope achieved a higher first-attempt intubation success rate and shorter intubation times than the Karl Storz video stylet in this simulated cervical fracture model.
- Despite differences in success rates and time, the Karl Storz video stylet demonstrated comparable clinical performance and safety.
- Both devices are viable options for airway management in patients with simulated cervical spine injuries.
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