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Real-time Ultrasound Guidance for Thoracic Epidural Blocks
Sponsor: University of Chile
Summary
Various modalities have been proposed for real-time confirmation of loss of resistance (LOR) for thoracic epidural blocks. With real-time ultrasound (US) guidance, the anesthesiologist attempts to visualize the sonographic advancement of the epidural needle and penetration of the epidural space (as detected by LOR) This observational study is set out to confirm the reliability of real-time ultrasound guidance as an adjunct to LOR for thoracic epidural blocks.
Official title: Reliability of Real-time Ultrasound Guidance as an Adjunct to Loss of Resistance for Thoracic Epidural Blocks
Key Details
Gender
All
Age Range
18 Years - 80 Years
Study Type
OBSERVATIONAL
Enrollment
100
Start Date
2024-07
Completion Date
2026-12
Last Updated
2023-12-14
Healthy Volunteers
No
Interventions
Real-time ultrasound guidance for thoracic epidural catheter placement.
With an US-guided parasagittal oblique approach, the interlaminar space at the union between laminas and spinous processes at the predefined insertion level will be identified. A skin wheal will be raised with 3 mL of lidocaine 1%. Afterward, an 18-gauge Tuohy epidural block needle will be advanced under direct US vision until the tip is insinuated between the laminas and anchored to the flavum ligament. Then the needle will be attached to a low resistance syringe prefilled with saline solution and advanced until LOR to injection is confirmed. Then a 20-Gauge epidural catheter will be inserted 3-5 cm beyond the needle tip inside the epidural space and the needle removed.
Locations (1)
Hospital Clínico Universidad de Chile
Santiago, Metropolitan, Chile