Remote feedback vs. direct feedback for ultrasound-guided sciatic nerve block training
Official title: Simulation-based Training for Ultrasound-guided Popliteal Sciatic Nerve Block Performance: a Randomized Non-inferiority Study Comparing Direct Synchronous Feedback With Remote Asynchronous Feedback
Run by Pontificia Universidad Catolica de Chile · NCT07659145 · Data updated 2026-11-12
This study tests whether remote asynchronous feedback can teach ultrasound-guided popliteal sciatic nerve block skills as well as direct in-person feedback for medical students.
Quick facts
| Study type | Interventional |
|---|---|
| Sex | All |
| Enrollment | 40 (estimated) |
| Sponsor | Pontificia Universidad Catolica de Chile Academic / other |
| Locations | 1 site (Santiago, Santiago Metropolitan) |
| Status | Recruiting |
| Started | May 28, 2026 |
| Main results expected | December 27, 2026 |
| Study ends | March 27, 2027 |
| Registry record updated | June 22, 2026 |
| Trial ID | NCT07659145 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Medicine students or residents participating in emergency medicine or critical care training at Pontificia Universidad Católica de Chile.
✕Probably not a fit
Students who require hands-on, real-time supervision for mastery may not benefit equally from remote feedback alone.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Medical residents will train in ultrasound-guided popliteal sciatic nerve block using a simulation program and will receive either synchronous direct feedback or remote asynchronous feedback. Outcomes will include technical skill performance assessed with validated tools, knowledge of anatomy and pharmacology, and dexterity development. Assessments occur after an initial lecture, a simulated procedure, and multiple practice sessions, with evaluators blinded to feedback modality. The study uses a 1-hour introductory lecture, simulated scenarios, and ongoing practice in a controlled lab, with comparisons of movement counts, total procedure time, and satisfaction and knowledge tests.
Why it matters
Potential benefit: If successful, asynchronous feedback could expand access to high-quality training while saving instructional resources.
How similar studies have gone: Previous simulation-based training studies have shown value for structured feedback, but the non-inferiority of asynchronous feedback in this specific ultrasound-guided nerve block context is being tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Medicine students Exclusion Criteria: * No exclusion Criteria
Where it's running
-
Pontificia Universidad Catolica de Chile
Santiago, Santiago Metropolitan, Chile Recruiting
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Improving walking symmetry after stroke with treadmill resistance and sensory feedback
This one-time test tries treadmill resistance plus real-time visual or auditory feedback to see if it improves leg push-off and walking symmetry in adults who had a stroke, compared with healthy adults.
-
Liver transplantation for colorectal cancer with liver metastases
This study follows adults with stage IV colorectal cancer whose disease is limited to the liver and who are getting a liver transplant as part of their cancer care to see how they fare over time.
-
Aortic-Radial Blood Pressure Gradient in Young Children Undergoing Heart Surgery
This study tests whether arm blood pressure readings match heart-level readings in children under 3 after heart surgery with a bypass machine, to see if arm readings are reliable enough to guide care.
-
Post-ICU Syndrome and Social Factors in Critical Illness Survivors
This study looks at how social factors affect people who survived a critical illness after being on a ventilator for at least 2 days.
-
Incremental Instrumental Dead Space vs Capping Trial Before Removing a Tracheostomy
This study tests whether adding extra tubing to the ventilator circuit (without blocking the tube) helps decide when a patient is ready to breathe on their own after a tracheostomy better than the standard capping trial.
-
Mediterranean Diet and Time-Restricted Feeding in Ulcerative Colitis in Remission
This study tests whether a Mediterranean diet, with or without an 8-hour eating window, helps gut health and quality of life in adults with ulcerative colitis in remission.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.