Paramedian Incidence Angles in Spinal Anaesthesia
Trial Snapshot
- Phase
- Not Applicable
- Status
- Recruiting
- Sponsor
- Enrollment
- 90
- Locations
- 2
- Primary Endpoint
- Number of needle insertion attempts
Study Overview
Brief Summary
The objective here is to quantify the number of punctures and redirections during routine practice in the anesthesiology department, verify the final angle of incidence and the sac-skin distance by ultrasound, and determine the optimal, maximum, and minimum angles that would have allowed successful punctures. The objective is also to correlate ultrasound and plain X-ray distances, if available. These angles would then be inferred in advance in patients who must undergo spinal anesthesia, assessing whether this prior estimate reduces the number of punctures and redirections.
Detailed Description
Protractors and visual guides may be used to guide the exact insertion angle according to the skin-to-dural sac distance or depending on the skin-to-transverse process distance when the midline approach is not feasible.
Study Design
- Study Type
- Observational
- Observational Model
- Other
- Time Perspective
- Prospective
Eligibility Criteria
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •patients submitted to spinal anaesthesia -
Exclusion Criteria
- Not provided
Outcomes
Primary Outcomes
Number of needle insertion attempts
Time Frame: From September 2025 to september 2026.
Total number of times that the spinal needle is introduced in the skin
Secondary Outcomes
- Number of needle redirections(From september 2025 to september 2028)
Investigators
Anna Puigdellívol-Sánchez
Principal investigator. Associate Professor
University of Barcelona