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
试验速览
- 阶段
- 不适用
- 入组人数
- 50
- 试验地点
- 2
- 主要终点
- Time to correct grip2
研究概览
简要总结
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.
详细描述
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.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Other
- 盲法
- None
入排标准
- 年龄范围
- 24 Years 至 40 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •To be a junior resident of anesthesiology(< 2 years )
排除标准
- •Refusal of resident
结局指标
主要结局
Time to correct grip2
时间窗: during implementation of procedure on phantom model(second session)
Time(sec) from start command to correct grip of the probe, needle and syringe for each technique
Time to correct grip1
时间窗: during implementation of procedure on phantom model(first session)
Time(sec) from start command to correct grip of the probe, needle and syringe for each technique
needling time 2
时间窗: during implementation of procedure on phantom model(second session)
time to reach target area with block needle
needling time 3
时间窗: during implementation of procedure on phantom model(third session)
time to reach target area with block needle
number of attempts1
时间窗: during implementation of procedure on phantom model(first session)
number of attempts until correct needling to target area
image quality3
时间窗: during implementation of procedure on phantom model(third session)
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)
image quality1
时间窗: during implementation of procedure on phantom model(first session)
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)
needling time 1
时间窗: during implementation of procedure on phantom model(first session)
time to reach target area with block needle
image quality2
时间窗: during implementation of procedure on phantom model(second session)
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)
number of attempts2
时间窗: during implementation of procedure on phantom model(second session)
number of attempts until correct needling to target area
number of attempts3
时间窗: during implementation of procedure on phantom model(third session)
number of attempts until correct needling to target area
success of injection2
时间窗: during implementation of procedure on phantom model(second session)
successful if injected water flows from hose of model/ unsuccessful if solution do not flow
success of injection3
时间窗: during implementation of procedure on phantom model(third session)
successful if injected water flows from hose of model/ unsuccessful if solution do not flow
success of injection1
时间窗: during implementation of procedure on phantom model(first session)
successful if injected water flows from hose of model/ unsuccessful if solution do not flow
Time to correct grip3
时间窗: during implementation of procedure on phantom model(third session)
Time(sec) from start command to correct grip of the probe, needle and syringe for each technique
次要结局
- NASA-TLX (NASA Task Load Index)(during implementation of procedure on phantom model(third session))
- Assesment of education(during education of techniques)
研究者
ismail aytaç
Principal Investigator
Ankara City Hospital Bilkent