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PregnancyNCT01192074

Use of Ultrasound in Obstetric Neuraxial Analgesia and Anesthesia Data Base

An observational study of Pregnancy, run by University of Missouri-Columbia at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This is a data base building project on the use of pre-procedure ultrasound for the performance of labor epidural pain relief and spinal anesthesia for cesarean deliveries. Data collection includes ultrasound measured depth, actual needle depth, angle of ultrasound probe, actual needle angle, success rates, patient… Read more about this study

Who is it for?
Ages 18 to 55 years, women onlyHealthy volunteers can take part
Conditions the study is for
Pregnancy
What is being tested?
Ultrasound
Type of treatment
Medical device
How many people
250 participants
Where
1 siteUnited States
Study dates
Jan 2010to Sep 2012
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Study population: Pregnant patients in labor Pregnant patients scheduled for cesarean section

Who may be able to join

  • Pregnant women in labor or scheduled for induction requesting labor epidural analgesia
  • Pregnant women scheduled for cesarean delivery
  • Pregnant women in labor who are going to have a non-emergent cesarean delivery under spinal anesthesia

Who cannot join

  • Emergency delivery
  • Emergency cesarean section
  • Advanced labor
  • Contraindications to neuraxial analgesia/anesthesia
  • Unable to understand consent
  • Under the age of 18

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Missouri Women's and Children's Hospital

    Columbia, Missouri, 65201

Other trials in United States

About this study

This is a data base building project on the use of pre-procedure ultrasound for the performance of labor epidural pain relief and spinal anesthesia for cesarean deliveries. Data collection includes ultrasound measured depth, actual needle depth, angle of ultrasound probe, actual needle angle, success rates, patient height and weight, number of attempts needed to place the epidural needle or spinal needle. Currently we are looking at the agreement between ultrasound determined depth of the epidural space or intrathecal space with actual needle depth.

Read the detailed description

All patients presenting in labor or are having a cesarean delivery are eligible except: patients who are under age 18, have contraindications to regional anesthesia, in advanced labor, having emergency conditions and/or unable to understand the consent process.

  • Data collected include:
  • Ultrasound depth in transverse and oblique sagittal views
  • Actual needle depth
  • Level of placement
  • Number of separate needle placements
  • Number of needle redirects
  • Angle of probe
  • Angle of needle
  • Total number of attempts
  • Pt height
  • Pt weight
  • Pt BMI
  • Pt age
  • Pt gravity/parity
  • Pt co-morbidities, e.g. pre-eclampsia
  • Procedure performed
  • Operator (Attending, CA-1, CA-2, CA-3, CRNA)

What is currently being examined is the correlation between ultrasound depth of the target area vs actual needle depth

Conditions
Pregnancy
Being tested
Ultrasound
Keywords
Obstetric, Analgesia, Anesthesia, Obstetric Anesthesia, Obstetric Analgesia, ultrasound, ultrasonography, epidural analgesia, epidural anesthesia, spinal anesthesia, neuraxial anesthesia, neuraxial analgesia, pregnancy, labor, cesarean delivery, cesarean section
Medical subject headings
Agnosia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • UltrasoundDevice

    Preprocedure ultrasound examination of the spine

Study groups in NCT01192074
Study groupRoleWhat they receive
Ultrasound of the spinePregnant women receiving labor epidural analgesia or spinal anesthesia for cesarean delivery
Receives: Device: Ultrasound

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Correlation of Ultrasound vs Needle Depth

    The ultrasound measured depth taken via oblique sagittal views and transverse views of the epidural space for epidural analgesia or intrathecal space for spinal anesthesia will be correlated with actual needle depth

    Measured: Beginning of ultrasound exam to end of ultrasound exam: average 5 min

Secondary outcomes (1)
  1. Attempt Number

    The number of needle placement attemtps: an attempt is defined as a separate needle placement The number of needle redirects: a redirect is defined at the need for changing the angle of needle direction at each separate needle attempt

    Measured: Beginning of placement of epidural or spinal needle to end of placement: average 10 min

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Aug 2010 (estimated)
  2. Study startJan 2010
  3. Primary completionSep 2012
  4. Study completionSep 2012

Why it stopped: Lack of personnel/research time to recruit participants.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
250 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01192074
Sponsor's protocol ID
1147418
Status last verified
Sep 2016
First submitted
26 Aug 2010
Last updated
5 Sep 2016
Results posted
No
Data monitoring committee
Yes

Publications

  • Carvalho JC. Ultrasound-facilitated epidurals and spinals in obstetrics. Anesthesiol Clin. 2008 Mar;26(1):145-58, vii-viii. doi: 10.1016/j.anclin.2007.11.007.

    PubMed 18319185
  • Arzola C, Davies S, Rofaeel A, Carvalho JC. Ultrasound using the transverse approach to the lumbar spine provides reliable landmarks for labor epidurals. Anesth Analg. 2007 May;104(5):1188-92, tables of contents. doi: 10.1213/01.ane.0000250912.66057.41.

    PubMed 17456672
  • Chin KJ, Perlas A, Singh M, Arzola C, Prasad A, Chan V, Brull R. An ultrasound-assisted approach facilitates spinal anesthesia for total joint arthroplasty. Can J Anaesth. 2009 Sep;56(9):643-50. doi: 10.1007/s12630-009-9132-8. Epub 2009 Jun 23.

    PubMed 19548051
  • 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.

    PubMed 14656785
  • Grau T, Leipold RW, Conradi R, Martin E. Ultrasound control for presumed difficult epidural puncture. Acta Anaesthesiol Scand. 2001 Jul;45(6):766-71. doi: 10.1034/j.1399-6576.2001.045006766.x.

    PubMed 11421838

Questions about this trial

What is this clinical trial studying?

An observational study of Pregnancy, run by University of Missouri-Columbia at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 5 Sep 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was stopped early (reason given: Lack of personnel/research time to recruit participants.). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Correlation of Ultrasound vs Needle Depth (time frame: Beginning of ultrasound exam to end of ultrasound exam: average 5 min). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01192074, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Sep 2016.

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