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Determining the Minimal Effective Volume (MEAV95) for Interscalene Brachial Plexus Block for Surgical Anesthesia

NCT01703130 · Status: UNKNOWN · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2014-06-02

No results posted yet for this study

Summary

Interscalene block (ISB) consistently demonstrates superior pain relief after shoulder surgery. However, patients can experience complications such as blurred vision, hoarseness and shortness of breath with the standard volumes of local anesthetic used in contemporary practice. Patients with respiratory diseases are precluded because of the potential effects on respiration. However, they are then exposed to the risks of general anesthesia and opioid medications which can also have detrimental effects on respiration. Ultrasound guided ISB can reduce the local anesthetic volume required to produce anesthesia for shoulder surgery; this may reduce the complications from ISB to allow patients previously unable to benefit to have this technique, such as patients with obesity and respiratory disease. In order to do so the investigators will use an up-down methodology to find the minimum volume of local anesthetic to provide sufficient anesthesia for shoulder surgery.

Conditions

  • Shoulder Pain

Interventions

PROCEDURE

Dose of of ropivacaine 0.75% used in block procedure

Sponsors & Collaborators

  • The Physicians' Services Incorporated Foundation

    collaborator OTHER

  • Sunnybrook Health Sciences Centre

    lead OTHER

Principal Investigators

  • Colin McCartney · Sunnybrook Health Sciences Centre

  • Stephen Choi · Sunnybrook Health Sciences Centre

  • Jane Wang · Sunnybrook Health Sciences Centre

  • Moein Tavakkoli Zadeh · Sunnybrook Health Sciences Centre

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
QUADRUPLE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2012-10-31
Primary Completion
2014-12-31
Completion
2014-12-31

Countries

  • Canada

Study Locations

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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 NCT01703130 on ClinicalTrials.gov