Evaluation of the Ability of Perfusion Index in Detection of Ulnar Nerve Sparing During Ultra Sound Guided Supraclavicular Block
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 51
- 试验地点
- 1
- 主要终点
- PI ratio in the little digit
研究概览
简要总结
The aim of this study to evaluate the ability of perfusion index to detect ulnar sparing and to estimate the proper time for the perfusion index ratio to determine successful block.
详细描述
On arrival to the operating room, patients will be connected to standard continuous monitoring; i.e. 5 lead electrocardiography (ECG), pulse oximetry, and automated non-invasive blood pressure monitoring (NIBP) every 5 minute. Two radical-7 (masimo set) devices will be connected the patient through two probes. The probes will be connected to both index and fifth digit to have a baseline reading before block performance. After block performance, PI will be continuously monitored for 30 minutes.
2-Anesthetic technique
Supraclavicular block:
Equipment and preparation:
- Ultrasound machine with linear transducer (8-14 MHz) (Siemens acusonx300, Korea).
- 5-cm, 22-gauge insulated block needle
- Sterile gloves, sterile sleeve, and gel (Or other coupling medium; e.g. Saline)
- 20 to 25 ml of 0.5% bupivacaine + 2% lidocaine in equal volumes
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age between 18 and 60 years and weight 60-90 kg.
- •ASA physical status classification I- II
- •Patients scheduled for elective upper limb surgery
排除标准
- •• upper limb ischemia
- •Diabetic neuropathy
- •Known contraindications to regional anaesthetic techniques as coagulopathy.
- •ASA physical status class III-IV.
- •Hypovolemic patients.
结局指标
主要结局
PI ratio in the little digit
时间窗: 10 minutes after block
PI ratio is defined as PI at 10 minutes / PI at the baseline
次要结局
- PI values in the index digit(every minute for 20 minutes then every 3 minutes for 30 minutes)
- PI ratio in the index digit(10 minutes after block)
- Time needed to reach the maximum PI ratio(every minute for 20 minutes then every 3 minutes for 30 minutes.)
- PI values in the little digit(every minute for 20 minutes then every 3 minutes for 30 minutes)
- Incidence of ulnar nerve sparing(for 30 minutes after block)
- Time needed to reach the maximum PI(every minute for 20 minutes then every 3 minutes for 30 minutes.)
研究者
Bassant M. Abdelhamid
associate professor
Cairo University