Single and Double Operator Techniques in Ultrasound-guided Peripheral Nerve Block Learning Curve

Anesthesiology Training Clinical Trial

Official title:

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

Clinical Trial Details — Status: Enrolling by invitation

Administrative data

• NCT number: NCT04487366
• Other study ID #: E1/20-804
• Status: Enrolling by invitation
• Phase: N/A
• Start date: July 1, 2020
• Est. completion date: October 1, 2020

Study information

• Verified date: July 2020
• Source: Ankara City Hospital Bilkent
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

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.

Description:

Ultrasound-guided peripheral blocks are conventionaly performed by double operators. One operator controls both the ultrasound probe and peripheric block needle. Another assistant operator aspirate or injects local anesthetic. In this technique operator do not sense resistance in the syringe. Also this technique requires a well-done communication and coordination between operators.

In order to eliminate disadvantages of this technique several single-operator grip techniques of the needle and syringe have been described(1- Jedi grip: Pappin and Christie/ 2- Bedforth/ 3- on lock: Gupta and Berrill). Single operator techniques allow the provider to perform independently.

Aim of this study is to compare learning curves of single and double operator ultrasound-guided peripheric nerve block techniques on a home-made gelatin-based phantom model.

Recruitment information / eligibility

• Status: Enrolling by invitation
• Enrollment: 50
• Est. completion date: October 1, 2020
• Est. primary completion date: September 15, 2020
• Accepts healthy volunteers: No
• Gender: All
• Age group: 24 Years to 40 Years

Eligibility

Inclusion Criteria:

• To be a junior resident of anesthesiology(< 2 years )

Exclusion Criteria:

• Refusal of resident

Related Conditions & MeSH terms

• Anesthesiology Training
• Influenza, Human
• Jedi Grip
• Single-handed Ultrasound-guided Regional Anaesthesia Grip
• Single-operator Ultrasound-guided Peripheric Nerve Block

Intervention

Other:
• reaching targeted area on the phantom model
resident reach the targeted area on the phantom model using ultrasoun guidance and independently or with asistance inject the solution

Locations

Country	Name	City	State
Turkey	Ankara City Hospital	Ankara

Sponsors (1)

Lead Sponsor	Collaborator
Ankara City Hospital Bilkent

Country where clinical trial is conducted

Turkey, 

References & Publications (4)

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. — View Citation

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. — View Citation

Miyake S. Factors influencing mental workload indexes. J UOEH. 1997 Dec 1;19(4):313-25. Review. — View Citation

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. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	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)
Primary	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)
Primary	number of attempts1	number of attempts until correct needling to target area	during implementation of procedure on phantom model(first session)
Primary	needling time 1	time to reach target area with block needle	during implementation of procedure on phantom model(first session)
Primary	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)
Primary	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)
Primary	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)
Primary	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)
Primary	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)
Primary	number of attempts2	number of attempts until correct needling to target area	during implementation of procedure on phantom model(second session)
Primary	number of attempts3	number of attempts until correct needling to target area	during implementation of procedure on phantom model(third session)
Primary	needling time 2	time to reach target area with block needle	during implementation of procedure on phantom model(second session)
Primary	needling time 3	time to reach target area with block needle	during implementation of procedure on phantom model(third session)
Primary	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)
Primary	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)
Secondary	NASA-TLX (NASA Task Load Index)	Resident assessment of each techniques for Mental Demand ,Physical Demand, Temporal Demand, Performance, Effort and Frustration	during implementation of procedure on phantom model(third session)
Secondary	Assesment of education	Residents assesment of pre-procedural education with a questtionarie. "Education was sufficient enough to safely perform peripheral block": I absolutely agree; I approve; I am indecisive; I do not approve; Absolutely Disagree	during education of techniques