Ultrasound and Neuraxial Anesthesia in Pregnancy

NCT ID: NCT02392533

Last Updated: 2019-09-26

Study Results

Results pending

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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Recruitment Status

COMPLETED

Total Enrollment

450 participants

Study Classification

OBSERVATIONAL

Study Start Date

2015-08-31

Study Completion Date

2018-01-26

Brief Summary

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Ultrasonography is routinely performed during pregnancy by obstetricians to visualize the fetus, making patients familiar and comfortable with its usage. Ultrasonography does not result in adverse effects to the mother or fetus and is readily available at most facilities, yet is not routinely used to identify lumbar interspaces prior to providing neuraxial anesthesia. Ultrasonography is a valuable tool for accurately identifying lumbar intervertebral spaces and is more accurate than simple palpation of obscure anatomic landmarks. The investigators are interested to know the accuracy of anatomic landmark palpation in predicting the lumbar interspace of neuraxial anesthesia administration compared to identification of the interspace by ultrasound. The investigators are also interested in presenting anesthesia providers with feedback regarding their accuracy and then investigating whether this feedback causes a change in provider practice (i.e. use of ultrasound) or improved identification of the interspace prior to providing neuraxial anesthesia.

Detailed Description

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Informed consent will be obtained and documented. All post-partum patients who received neuraxial anesthesia will be asked to provide consent for ultrasound to be used at their bedside to identify the interspace where the neuraxial anesthetic was administered. A low frequency ultrasound probe and sterile gel will be used to perform the less than five-minute study. The site of the neuraxial anesthetic placement will be identified by the puncture mark on the skin. The investigators will note the patient's medical record number and BMI, the names of the resident and attending anesthesiologist who placed the neuraxial anesthetic, the documented intervertebral space at the time of neuraxial anesthetic placement, anesthetic type, whether ultrasound was used for the initial neuraxial placement, and the documented intervertebral space identified post-partum by ultrasound.

Following 3 months of data collection, information regarding the documented intervertebral space versus the actual intervertebral space that the neuraxial anesthetic was administered will be provided to each anesthesiologist and resident. Following delivery of this information, an additional 3 months of data collection will be performed (the same as the first 3 months) to evaluate whether a practice change took place.

Conditions

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Infusion Site Anaesthesia

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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Pre cohort group

Following 3 months of data collection (pre-cohort group), education regarding the documented intervertebral space versus the actual intervertebral space that the neuraxial anesthetic was administered will be provided to each anesthesiologist and resident. Following delivery of this information, an additional 3 months of data collection will be performed (post-cohort group) (the same as the first 3 months) to evaluate whether a practice change took place.

Education

Intervention Type OTHER

Education

Post cohort group.

Following 3 months of data collection (pre-cohort group), education regarding the documented intervertebral space versus the actual intervertebral space that the neuraxial anesthetic was administered will be provided to each anesthesiologist and resident. Following delivery of this information, an additional 3 months of data collection will be performed (post-cohort group) (the same as the first 3 months) to evaluate whether a practice change took place.

No interventions assigned to this group

Interventions

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Education

Education

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

\-
Minimum Eligible Age

18 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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University of Chicago

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Barbara Scavone, MD

Role: PRINCIPAL_INVESTIGATOR

The University of Chicago MEDICINE

Locations

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The University of Chicago MEDICINE

Chicago, Illinois, United States

Site Status

Countries

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United States

References

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Wallace DH, Currie JM, Gilstrap LC, Santos R. Indirect sonographic guidance for epidural anesthesia in obese pregnant patients. Reg Anesth. 1992 Jul-Aug;17(4):233-6.

Reference Type RESULT
PMID: 1515392 (View on PubMed)

Grau T, Bartusseck E, Conradi R, Martin E, Motsch J. Ultrasound imaging improves learning curves in obstetric epidural anesthesia: a preliminary study. Can J Anaesth. 2003 Dec;50(10):1047-50. doi: 10.1007/BF03018371.

Reference Type RESULT
PMID: 14656785 (View on PubMed)

Grau T, Leipold RW, Conradi R, Martin E, Motsch J. Efficacy of ultrasound imaging in obstetric epidural anesthesia. J Clin Anesth. 2002 May;14(3):169-75. doi: 10.1016/s0952-8180(01)00378-6.

Reference Type RESULT
PMID: 12031746 (View on PubMed)

Broadbent CR, Maxwell WB, Ferrie R, Wilson DJ, Gawne-Cain M, Russell R. Ability of anaesthetists to identify a marked lumbar interspace. Anaesthesia. 2000 Nov;55(11):1122-6. doi: 10.1046/j.1365-2044.2000.01547-4.x.

Reference Type RESULT
PMID: 11069342 (View on PubMed)

Other Identifiers

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IRB14-1556

Identifier Type: -

Identifier Source: org_study_id

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