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Real-time Ultrasound-guided Spinal Anesthesia:A Feasibility Study

NCT01326988 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 100

Last updated 2012-02-06

No results posted yet for this study

Summary

The traditional landmarks to locate the injection site and orientation of the spinal needle for spinal anesthesia are based on palpation of surface bony landmarks. However the actual injection target into the CSF is located at an unknown depth inside the patients 3 dimensional spinal anatomy which can itself vary in its orientation relative to these surface markers.Also bony surface markers may not be palpable in some patients or the patient may have altered spinal alignment. Thus an already blind procedure can become even more misguided involving multiple trial and error needle insertions. On the other hand ultrasound allows visualisation of deep target structures which are impalpable, it allows assessment of spinal alignment and thus directs the orientation of the seeking needle more accurately. Performing US in real-time during needle insertion gives continuous feedback about the correct needle approach path which should reduce the number of blind needle passes.

Conditions

  • Ultrasound Spinal Anesthesia

Interventions

PROCEDURE

Real-time ultrasound guided spinal anesthesia

The neuraxial US scan will be performed with the patient in the sitting or lateral position with the hip and knees slightly flexed using full aseptic technique. The spinal needle will be inserted in real-time under direct ultrasound guidance to administer the spinal anesthetic.

Sponsors & Collaborators

  • Sunnybrook Health Sciences Centre

    lead OTHER

Principal Investigators

  • Paul McHardy, MD FRCPC BA · Sunnybrook Health Sciences Center

  • Patrick H Conroy, MB FFARCSI · Sunnybrook Health Sciences Center

  • Luyet Cedric, MD · Sunnybrook Health Sciences Center

  • colin McCartney, FRCPC · Sunnybrook Health Sciences Center

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2011-04-30
Primary Completion
2011-10-31
Completion
2011-10-31

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 NCT01326988 on ClinicalTrials.gov