Comparison of Single and Double Operator Techniques in Ultrasound-guided Peripheral Nerve Block Learning Curve for Anesthesia Residency Training on a Gelatin-based Phantom Model: a Prospective Randomized Controlled Study
Sponsor study identifier
interventional
50
1 country
1
Study Start
July 1, 2020
Actual (reported)Primary Completion
September 15, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
October 1, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Aim of this study is to compare learning curves of single(1- Jedi grip: Pappin and Christie/ 2- Bedforth/ 3- on lock: Gupta and Berrill) and double operator ultrasound-guided peripheric nerve block techniques on a home-made gelatin-based phantom model.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
October 1, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
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Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
July 1, 2020
Actual (reported)July 17, 2020
Actual (reported)July 27, 2020
Actual (reported)September 15, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
October 1, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Time to correct grip1
Time(sec) from start command to correct grip of the probe, needle and syringe for each technique
during implementation of procedure on phantom model(first session)
image quality1
provided image quality by resident for each technique which is assessed by investigator by four point Liker Scale( 1- much worse 2- worse 3- better 4- much better)
during implementation of procedure on phantom model(first session)
number of attempts1
number of attempts until correct needling to target area
during implementation of procedure on phantom model(first session)
resident control block needle and ultrasound probe and asistant operator inject the solution. resident reach the target area created in the phantom model using a block needle with ultrasound guidance
resident control block needle, ultrasound probe and syringe independently with jedi grip; reach the target area created in the phantom model using a block needle with ultrasound guidance; inject and aspirate the solution.
resident reach the targeted area on the phantom model using ultrasoun guidance and independently or with asistance inject the solution
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Ankara City Hospital
Ankara, 06600, Turkey (Türkiye)
Pappin D, Christie I. The Jedi Grip: a novel technique for administering local anaesthetic in ultrasound-guided regional anaesthesia. Anaesthesia. 2011 Sep;66(9):845. doi: 10.1111/j.1365-2044.2011.06845.x. No abstract available.
Gupta P, Berrill A. 'On lock' - a further single-operator ultrasound-guided regional anaesthesia grip. Anaesthesia. 2017 Oct;72(10):1289. doi: 10.1111/anae.14050. No abstract available.
İsmail Aytac
Ankara City Hospital Anesthesiology Department
First Submitted
July 17, 2020
First Posted
July 27, 2020
Study Start
July 1, 2020
Actual (reported)Primary Completion
September 15, 2020
Estimated (date passed)needling time 1
time to reach target area with block needle
during implementation of procedure on phantom model(first session)
success of injection1
successful if injected water flows from hose of model/ unsuccessful if solution do not flow
during implementation of procedure on phantom model(first session)
Time to correct grip2
Time(sec) from start command to correct grip of the probe, needle and syringe for each technique
during implementation of procedure on phantom model(second session)
Time to correct grip3
Time(sec) from start command to correct grip of the probe, needle and syringe for each technique
during implementation of procedure on phantom model(third session)
image quality2
provided image quality by resident for each technique which is assessed by investigator by four point Liker Scale( 1- much worse 2- worse 3- better 4- much better)
during implementation of procedure on phantom model(second session)
image quality3
provided image quality by resident for each technique which is assessed by investigator by four point Liker Scale( 1- much worse 2- worse 3- better 4- much better)
during implementation of procedure on phantom model(third session)
number of attempts2
number of attempts until correct needling to target area
during implementation of procedure on phantom model(second session)
number of attempts3
number of attempts until correct needling to target area
during implementation of procedure on phantom model(third session)
needling time 2
time to reach target area with block needle
during implementation of procedure on phantom model(second session)
needling time 3
time to reach target area with block needle
during implementation of procedure on phantom model(third session)
success of injection2
successful if injected water flows from hose of model/ unsuccessful if solution do not flow
during implementation of procedure on phantom model(second session)
success of injection3
successful if injected water flows from hose of model/ unsuccessful if solution do not flow
during implementation of procedure on phantom model(third session)
NASA-TLX (NASA Task Load Index)
during implementation of procedure on phantom model(third session)
Assesment of education
during education of techniques
resident control block needle, ultrasound probe and syringe independently with on-lock grip; reach the target area created in the phantom model using a block needle with ultrasound guidance; inject the solution.
resident control block needle, ultrasound probe and syringe independently with bedforth's alternative grip; reach the target area created in the phantom model using a block needle with ultrasound guidance; inject the solution.
Contact the study team to confirm eligibility.
Bedforth N, Townsley P, Maybin J, Eisenberg E. Single-handed ultrasound-guided regional anaesthesia. Anaesthesia. 2011 Sep;66(9):846. doi: 10.1111/j.1365-2044.2011.06864.x. No abstract available.
Miyake S. Factors influencing mental workload indexes. J UOEH. 1997 Dec 1;19(4):313-25. doi: 10.7888/juoeh.19.313.
Guven Aytac B, Unal S, Aytac I. A randomized, controlled simulation study comparing single and double operator ultrasound-guided regional nerve block techniques using a gelatine-based home-made phantom. Medicine (Baltimore). 2022 Sep 2;101(35):e30368. doi: 10.1097/MD.0000000000030370.
This estimate has passed. The registry has not confirmed an actual date for this milestone.
Study Completion
October 1, 2020
Estimated (date passed)This estimate has passed. The registry has not confirmed an actual date for this milestone.
Last Updated
July 27, 2020
Record last verified: 2020-07
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