Comparison of the incidence of intravascular injection using the Tuohy and Quincke needles during ultrasound-guided caudal epidural block: a prospective randomized controlled study
Authors' conclusion
The overall incidence of inadvertent intravascular injections during ultrasound-guided caudal block confirmed using DSA was 10.9%. Tuohy needles did not reduce intravascular injection rates during the ultrasound-guided caudal block.
Study context
- Population
- Patients undergoing ultrasound-guided caudal epidural block
- Participants
- 230 patients
- Comparison
- Tuohy vs Quincke needle for ultrasound-guided caudal epidural block
- Tuohyn = 115
- Quincken = 115reference
- Primary endpoint
- Intravascular injection rate (contrast-dyed digital subtraction angiography)
Methodological detailsprospective
- Prospective
Primary result
As reported in the abstract
Intravascular uptake of contrast medium
P = 0.14
Further findings
Overall intravascular uptake (all caudal blocks)
- Intravascular uptake, all blocks
- 25/230 (10.9%)
Bony contact during procedure and intravascular injection
- Bony contact associated with intravenous injection
- P < 0.01
Original publication
Comparison of the incidence of intravascular injection using the Tuohy and Quincke needles during ultrasound-guided caudal epidural block: a prospective randomized controlled study. Reg Anesth Pain Med. Published 11 May 2023. doi:10.
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