MedTrace Logo

Pulmonary Function Changes and Diaphragmatic Paralysis Following Ultrasound Guided Supraclavicular Brachial Plexus Blockade: The Effects of Decreased Local Anesthetic Volume

NCT01048021 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2017-05-08

No results posted yet for this study

Summary

This clinical trial is being conducted to study lung function and movement of the major muscle involved in breathing (the diaphragm) after a brachial plexus nerve block (nerve "freezing"). The purpose of this study is to find out what effects (good and bad) ultrasound guided nerve freezing has on the movement of the patient's diaphragm and their lung function.

The potential advantage of ultrasound guidance will be a lesser chance of freezing the nerves that innervate the diaphragm and thus having less of an effect on lung function.

Conditions

  • Diaphragmatic Function
  • Lung Function

Interventions

PROCEDURE

Supraclavicular Block

Baseline values of forced expiratory volume in one second (FEV1), forced vital capacity (FVC), and peak expiratory flow rates (PEFR) will be measured in both the sitting and supine position. Ultrasound-guided supraclavicular brachial plexus blocks will be performed in the supine position with a Pajunk 22g block needle and nerve stimulator. The patients will receive local anesthetic injection with 15 mL of 0.75% Bupivicaine. A maximum of 3 cc of 5% Dextrose will be utilized as contrast to confirm needle tip placement and fluid spread prior to injection of the local anesthetic. At 60 minutes post-injection, FEV1, FVC, and PEFR measurements will be taken in the sitting and supine position.

Sponsors & Collaborators

  • University of Manitoba

    lead OTHER

Principal Investigators

  • Patricia Mykytiuk, MD · Department of Anesthesia, University of Manitoba

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2009-10-31
Primary Completion
2010-04-30
Completion
2010-04-30

Countries

  • Canada

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01048021 on ClinicalTrials.gov