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Reliability of Waveform Analysis as an Adjunct to Loss of Resistance for Obstetrical Epidural Blocks

Pregnancy Clinical Trial

Official title:
Reliability of Waveform Analysis as an Adjunct to Loss of Resistance for Obstetrical Epidural Blocks

Clinical Trial Summary

In this study, we will set out to confirm the reliability of epidural waveform analysis (EWA) as an adjunct to loss of resistance for obstetrical epidural blocks.

Clinical Trial Description

After loss of resistance, 5 mL of normal saline will be injected through the epidural needle; the latter will then be connected to a pressure transducer (leveled with the heart) using a rigid tubing. A pressure recording of the epidural waveform will be saved for future assessment by a blinded observer.

After the recording of the waveform, the rigid tubing will be disconnected from the epidural needle. A 4 mL bolus of lidocaine 2% with epinephrine 5 µg/mL will be injected through the latter. An epidural catheter will be advanced 3-4 cm past the tip of the needle inside the epidural space. The needle will then be removed and the catheter secured to the skin in the usual fashion.

Fifteen minutes after the injection of the local anesthetic bolus, a blinded observer will apply ice to the T1-L5 dermatomes and assess the epidural block. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02793596
Study type Interventional
Source McGill University Health Center
Contact
Status Completed
Phase N/A
Start date August 2016
View Details
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