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Real-time vs. static ultrasound-guided needle cricothyroidotomy: a randomized crossover simulation trial
Hidenobu Watanabe1, Harumasa Nakazawa2, Joho Tokumine1
1Department of Anesthesiology, Kyorin University School of Medicine, 6-20-2 Sinkawa, Mitaka, Tokyo, 181-8611, Japan.
Scientific Reports
|March 8, 2025
Summary
Real-time ultrasound guidance significantly improves needle cricothyroidotomy success rates and accuracy compared to static ultrasound. This technique is crucial for airway management in challenging anatomical situations.
Area of Science:
- Emergency Medicine
- Ultrasound Technology
- Airway Management
Background:
- Cricothyroidotomy is a vital emergency airway procedure.
- Ultrasonography enhances cricothyroid membrane identification compared to palpation.
- Optimal ultrasound administration for needle cricothyroidotomy remains unclear.
Purpose of the Study:
- To compare real-time versus static ultrasound for needle cricothyroidotomy.
- To evaluate effectiveness in simulated neck anatomical abnormalities.
Main Methods:
- 48 participants performed needle cricothyroidotomy on cervical simulators with abnormalities.
- A crossover study design compared real-time and static ultrasound techniques.
- Fisher's exact test analyzed success rate and puncture accuracy.
Main Results:
- Real-time ultrasound significantly increased cricothyroidotomy success rates.
- Puncture accuracy and procedure time were significantly better with real-time ultrasound.
- Real-time ultrasound demonstrated superior performance over static ultrasound.
Conclusions:
- Real-time ultrasonography is more effective for needle cricothyroidotomy than static ultrasonography.
- This finding has implications for emergency airway management training and practice.