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Ultrasound-guided Dual TAP Block: Magnetic Resonance (MR) Evaluation of the Distribution of Local Anesthetic

Pain, Postoperative Clinical Trial

Official title:
Dual TAP Block Characteristics - Evaluation of Local Anesthetic Distribution by MR Scanning

Clinical Trial Summary

Using Magnetic resonance (MR) scanning and ultrasonography the investigators wish to investigate, in what way a known volume of local anesthetic injectate will be distributed in the transverse abdominis plane (TAP) in young healthy male volunteers. The investigators compare the anatomical distribution of the local anesthetic injectate in the TAP when performing an ultrasound-guided classical TAP block and a Dual TAP block. The investigators also want to compare the spread of anesthetized frontal dermatomes when performing an ultrasound-guided classical TAP block and a Dual TAP block.

Clinical Trial Description

There has been much debate as to what extent the classical TAP block will anesthetize more than the frontal dermatomes (TH10-Th12/L1). Some cadaver studies have been performed with injection of dye in the classical TAP. However, it is still not clear whether a single injection of local anesthetic in the classical TAP block position will reach the more cephalad and medial intercostal TAP plexus (Th6-Th9). In this study the investigators use MR scanning and ultrasonography to investigate in what way a known volume of local anesthetic injectate will be distributed in the transverse abdominis plane (TAP) in young healthy male volunteers. The investigators compare the anatomical distribution of the local anesthetic injectate in the TAP when performing an ultrasound-guided classical TAP block and a Dual TAP block. The investigators also want to compare the spread of anesthetized frontal dermatomes when performing an ultrasound-guided classical TAP block and a Dual TAP block. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01305603
Study type Interventional
Source Bispebjerg Hospital
Contact
Status Completed
Phase N/A
Start date February 2011
Completion date April 2013
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