Impact of the EpiFaith® Syringe on the Learning Curve of Anesthesia Residents for the Labor Epidural Technique: A Quasi-Experimental Study
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 34
- 试验地点
- 2
- 主要终点
- success of labor epidural attempt
研究概览
简要总结
This study aims to evaluate the impact of the EpiFaith® syringe on the learning curve of anesthesia residents for the labor epidural technique. Anesthesia residents with prior experience placing < 5 labor epidurals will be enrolled. Their performance of 20 sequential labor epidural placements with either standard technique with a beveled glass syringe or the EpiFaith® syringe will be observed. Successful epidural placement over time with sequential epidural placement attempts will be measured between groups. The primary outcome will be rate of successful epidural placement. Success will be defined as a composite of 4 criteria: maximum 3 attempts for placement; no need to re-site at a different level; no required intervention by the supervising attending anesthesiologist; and adequate analgesia with a visual analog score (VAS) <3 at 30 minutes. We hypothesize that use of the EpiFaith® syringe will enable a faster learning curve for successful epidural placement. A cumulative sum chart (CUSUM) analysis will evaluate whether the EpiFaith® syringe causes deviation from the control learning curve. Secondary outcomes will include rate of inadvertent dural puncture and epidural replacement rate.
详细描述
The lumbar epidural technique for labor analgesia requires technical training and a manual skillset. A prior study evaluating anesthesia resident learning curves for a traditional labor epidural technique demonstrated a steep learning curve for the first 20 epidural placements, followed by a plateau with gradual proficiency maximized after 60 epidural placements (1). A prior study evaluated a spring-loaded epidural syringe among experienced providers (2). However, the impact of a spring-loaded epidural syringe on novice anesthesia resident learning curves is unknown. In addition, the impact of EpiFaith® use at the time of manual skill acquisition on success with subsequent traditional epidural technical skills is unknown.
The EpiFaith® syringe is FDA-cleared and has a spring-loaded piston designed to detect entry into the epidural space upon loss of resistance (LOR) as the epidural needle tip moves from the dense ligamentum flavum to the high-compliance epidural space. Performing the LOR technique using the EpiFaith® syringe, the piston within the syringe moves forward driven by spring force when a drop in pressure is detected. Piston movement within the syringe is visibly detectable with a yellow indicator in the syringe when LOR occurs. In a feasibility study of 40 labor epidural placements, 3 of 4 expert obstetric anesthesiology physicians reported the EpiFaith® syringe to be equal to superior in quality to the standard LOR syringe, with 100% success rate and no inadvertent dural punctures (3).
Evaluating the impact of the EpiFaith® syringe on learning curves of anesthesia residents with minimal prior technical experience will help inform how we approach education regarding the labor epidural technique. Steeper learning curves with faster time to proficiency may benefit both patients and supervising staff, while if no difference is determined, the use of the EpiFaith® syringe can be de-emphasized during the training period.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Factorial
- 主要目的
- Supportive Care
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Anesthesiology residents with fewer than 5 prior epidural placement experiences
排除标准
- •anesthesiology residents with more than 5 prior epidural placement experiences
研究组 & 干预措施
Control (glass epidural syringe)
干预措施: Control (glass) syringe (Device)
EpiFaith syringe
干预措施: EpiFaith epidural syringe (Device)
结局指标
主要结局
success of labor epidural attempt
时间窗: time of epidural placement to 30 minutes after dosing of the epidural
success of labor epidural attempt over time by each resident, with success defined as a composite requiring: 1. Less than 3 attempts for placement 2. No need to re-site the epidural needle 3. No staff intervention 4. NRS 3 or less at 30 minutes post-loading epidural dose
次要结局
- rating of the epidural syringe(from time of placement to immediately following placement)
- Incidence of inadvertent dural puncture(from time of epidural placement for a maximum of 5 days)
- incidence of postdural puncture headache(from time of epidural placement up to 5 days)
- Need for epidural catheter replacement during labor(from time of epidural placement through delivery during hospital admission)
研究者
Michaela Kristina Farber, MD
Chief, Division of Obstetric Anesthesiology, Mass General Brigham
Brigham and Women's Hospital