Does Ultrasound Guidance Improve Time to Perform a Spinal or Number of Attempts in Obese Patients?
NCT ID: NCT01680913
Last Updated: 2016-11-15
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
67 participants
INTERVENTIONAL
2013-01-31
2013-12-31
Brief Summary
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Ultrasound is useful for finding the correct injection site in pregnant patients, but the usefulness of ultrasound has not been adequately evaluated in non-pregnant patients. The potential benefits for obese patients from the use of ultrasound include shortening the duration of the procedure, increasing patient comfort, decreasing the total number of attempts, and aiding in the choice of appropriate needle length for the patient.
The investigators hypothesize that there is no difference in time to perform a spinal anesthetic when landmarking with ultrasound as compared to tactile landmarking in patients with BMI \> 35.
Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
SUPPORTIVE_CARE
NONE
Study Groups
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Spinal with ultrasound guidance
The intervention group's interspaces will be determined using the curved linear probe on a Zonare ultrasound using two views.
Ultrasound guidance
The intervention group's interspaces will be determined using the curved linear probe on a Zonare ultrasound using two views.
Spinal anesthetic
Subcutaneous local infiltration with a 25g needle we be performed prior to the spinal. Neuraxial technique will be attempted midline with a 25 gauge whitacre needle in the sitting position. Spinals will be attempted on either L2-L3, L3-L4, L4-L5 interspaces. The amount and type of local anesthetic/intrathecal narcotic will be left to the discretion of the Anesthetist.
Spinal by palpation of Tuffier's line
Current clinical practice. Standard of care would have the attending anesthetist palpate the Tuffier's line to pinpoint the appropriate location for the spinal.
Palpation of Tuffier's line
Current clinical practice. Standard of care would have the attending anesthetist palpate the Tuffier's line to pinpoint the appropriate location for the spinal.
Spinal anesthetic
Subcutaneous local infiltration with a 25g needle we be performed prior to the spinal. Neuraxial technique will be attempted midline with a 25 gauge whitacre needle in the sitting position. Spinals will be attempted on either L2-L3, L3-L4, L4-L5 interspaces. The amount and type of local anesthetic/intrathecal narcotic will be left to the discretion of the Anesthetist.
Interventions
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Ultrasound guidance
The intervention group's interspaces will be determined using the curved linear probe on a Zonare ultrasound using two views.
Palpation of Tuffier's line
Current clinical practice. Standard of care would have the attending anesthetist palpate the Tuffier's line to pinpoint the appropriate location for the spinal.
Spinal anesthetic
Subcutaneous local infiltration with a 25g needle we be performed prior to the spinal. Neuraxial technique will be attempted midline with a 25 gauge whitacre needle in the sitting position. Spinals will be attempted on either L2-L3, L3-L4, L4-L5 interspaces. The amount and type of local anesthetic/intrathecal narcotic will be left to the discretion of the Anesthetist.
Eligibility Criteria
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Inclusion Criteria
* BMI \>35
* between the ages of 18-85
Exclusion Criteria
* Pregnant patients
* Patients requiring emergent surgeries
* Patients in positions other than sitting during neuroaxial anesthesia
* Patients with contraindications to neuroaxial anesthesia
18 Years
85 Years
ALL
No
Sponsors
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University of Saskatchewan
OTHER
Responsible Party
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Jacelyn Larson
Faculty
Principal Investigators
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Jacelyn Larson, MD FRCP
Role: PRINCIPAL_INVESTIGATOR
University of Saskatchewan
Locations
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Saskatoon City Hospital
Saskatoon, Saskatchewan, Canada
Saint Paul's Hospital
Saskatoon, Saskatchewan, Canada
Countries
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Other Identifiers
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U/S spinals
Identifier Type: -
Identifier Source: org_study_id