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Identification of L3-L4 Interspace in Parturients

Identification of L3-L4 Interspace in Parturients

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02697747
Enrollment
18
Registered
2016-03-03
Start date
2015-11-30
Completion date
2021-08-31
Last updated
2021-10-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy

Keywords

Ultrasound, Palpation, Analgesia, Epidural

Brief summary

The investigators hypothesize that teaching ultrasound sonoanatomy to identify the L3-L4 interspace will improve resident's long term skill to correctly identify the interspace as compared to palpation alone.

Detailed description

This will be an observational education based study to improve anesthesiology resident's ability to correctly identify the L3-L4 interspace. Residents who agree to participate in the study will be trained using ultrasound to identify the L3-L4 interspace during their rotation on the obstetric anesthesia service. Training will include using the ultrasound to correlate the surface palpation with the underlying structures. This will be supplemented with teaching videos and literature. The training will be performed for the first three weeks of the four week rotation. After undergoing this training program, during the fourth week of the rotation, the residents will be asked to perform palpation identification of the L3-L4 interspace on parturients. Ultrasound will be used to assess the accuracy of the identified level. These assessments will repeated at six and 12 months to assess whether the skill has been retained.

Interventions

OTHEREducation

Educational intervention in the use of ultrasound to identify landmarks

Sponsors

Beth Israel Deaconess Medical Center
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
12 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* term gestation (at least 38 weeks gestation)

Exclusion criteria

* Prior back surgery * Previously diagnosed skeletal deformities such as scoliosis * BMI greater than 40 * Height less than 60 inches * Patient discomfort requiring immediate analgesia

Design outcomes

Primary

MeasureTime frameDescription
Accuracy measured as percentage of cases where the L3-4 vertebral interspace is identified correctly1 monthPercentage of cases where the L3-4 vertebral interspace is identified correctly

Secondary

MeasureTime frameDescription
Durability measured as percentage of cases where the L3-4 vertebral interspace is identified correctly6 months and 12 monthspercentage of cases where the L3-4 interspace is identified correctly at 6 months and again at 12 months

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026