Neuraxial Ultrasound Device Study for Labor Pain and Cesarean Delivery

This study is testing a new device called Accuro 3S, which uses ultrasound to help doctors place epidural or spinal anesthesia more accurately. The goal is to make these procedures safer and more effective, especially for patients who might be challenging. Doctors will use the Accuro 3S to get real-time images and guidance during epidural and spinal procedures. They want to see how well the device helps visualize the needle and provides anatomical guidance. You might be able to join if you are a woman between 18 and 65 years old, need epidural or spinal anesthesia, and have healthy skin where the procedure will be done. The study will measure how often there are difficulties with placing the anesthesia, specifically within 15 minutes. The study is currently unclear on its recruitment status and plans to enroll 100 participants.

Study design: This is a structured observational study, meaning researchers will collect data on how the Accuro 3S device is used during routine procedures. It aims to enroll 100 participants.
What's involved: If you participate, the anesthesia team will use the Accuro 3S device during your epidural or spinal anesthesia procedure, which is part of your routine care. Image recordings of your spine will be taken during scouting scans.
Compensation: Not stated in the trial record.
Follow-up: The primary endpoint, incidence of difficult block placement, is measured at 15 minutes.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

Neuraxial Ultrasound Device Study

Not Yet Recruiting

NAAges 18–65InterventionalTreatment

Stanford University

~100 participants

Updated 2026-04-24 on ClinicalTrials.gov

What's tested:Ultrasound placement device

At a glance

Recruiting sites

0 of 1 listed site is recruiting right now

RecruitingSuspended, closed, or not yet open

What they're measuring

Incidence of difficult block placement

Measured over 15 minutes

Conditions

Labor Pain

Cesarean Delivery Regional Anesthesia Induction

Where it's being run

1 sites across 1 states

California1

Study leadership

Clemens Ortner, MD · PRINCIPAL_INVESTIGATOR · Stanford University

Who to contact

This trial hasn't published a contact. View it on ClinicalTrials.gov

Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

Aged 18 years or older

The patient is eligible for placement of neuraxial anesthesia, and the patient has agreed to the procedure.

Patient skin is intact in the area of placement of the epidural or spinal anesthesia.

Exclusion

Contraindication to epidural catheter placement including bleeding diathesis (essential thrombocythemia, idiopathic thrombocytopenic purpura, von Willebrand disease, and hemophilia A or B), neurological dysfunction (multiple sclerosis, subacute myeloopticoneuropathy or preexisting lower limb neurological deficit), prior extensive spinal surgery or major spinal deformity, pre-operative use of anti-coagulant with planned use of therapeutic dose of anti-coagulant in post-operatively, documented pre-operative coagulopathy (INR greater than 1.3 not on Coumadin or PTT greater than 42), platelets less than 70,000/μL, or evidence of infection at potential epidural site.

Presence of orthopedic implants in the spine.

Skin dyscrasias or allergies to the ultrasound procedure.

Unable to assume sitting position.

Body Mass Index (BMI) less than 20 kg/m2.

Known allergies to ultrasound gel.

Known history of allergic reactions to adhesives used in standard epidural placement

What this trial measures

Incidence of difficult block placement15 minutes
Difficult block placement is defined by need of \> 2 needle insertion attempts for succesful neuraxial analgesia/anesthesia

Trialytics