Needle angle planning for paramedian spinal anesthesia
Paramedian Incidence Angles in Spinal Anaesthesia
This project tests whether using ultrasound (and X‑ray when available) to estimate the best needle insertion angle can reduce the number of punctures and redirections for patients receiving spinal anesthesia.
Quick facts
| Study type | Observational |
|---|---|
| Enrollment | 90 (estimated) |
| Sex | All |
| Sponsor | Consorci Sanitari de Terrassa Academic / other |
| Locations | 1 site (Barcelona) |
| Trial ID | NCT07210892 on ClinicalTrials.gov |
What this trial studies
This observational project will record the number of needle punctures and redirections during routine spinal anesthesia and measure the actual angle of needle insertion. Ultrasound will be used to measure skin-to-dural sac distance and plain X‑ray distances will be correlated when available, while protractors or visual guides document insertion angles including paramedian approaches. Investigators will determine the optimal, maximum, and minimum angles that correspond with successful punctures and compare ultrasound versus X‑ray distance measurements. The team will also infer angles in advance for subsequent patients to see if prior estimation reduces the number of punctures and redirections.
Who should consider this trial
Good fit: Patients who are scheduled to receive spinal anesthesia at the participating center are the intended candidates for this project.
Not a fit: People not receiving spinal anesthesia, those in whom ultrasound or X‑ray cannot be obtained, or patients whose anatomy precludes angle-guided paramedian approach may not receive benefit.
Why it matters
Potential benefit: If successful, this approach could reduce needle punctures and redirections, lowering pain and complication risk and shortening procedure time.
How similar studies have performed: Previous studies show ultrasound guidance can reduce needle attempts for spinal anesthesia, but detailed mapping of paramedian insertion angles and routine preprocedure angle estimation is less well studied.
Eligibility criteria
Show full inclusion / exclusion criteria
Inclusion Criteria: patients submitted to spinal anaesthesia - Exclusion Criteria: none \-
Where this trial is running
Barcelona
- APuigdellivolSanchez — Barcelona, Spain (Recruiting)
Study contacts
- Principal investigator: Alberto Prats-Galino, M.D., Ph.D — University of Barcelona
- Study coordinator: Anna Puigdellívol-Sánchez, M.D., Ph.D.
- Email: apuigdellivol@ub.edu
- Phone: +34-93-5884555
How to participate
- Review the eligibility criteria above with your treating physician.
- Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
- Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.