Influence of Anesthetic Volume on Comfort Score During US-SCB Placement in Elderly Patients
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 50
- 试验地点
- 2
- 主要终点
- Comfort Score
研究概览
简要总结
Results from our preliminary study accepted as e-poster presentation on ESRA (Bordeaux, September 2012.) showed significant difference in Comfort Score during Ultrasound Guided Supraclavicular Brachial Plexus block (US-SCB) between young and elderly population. However, it is unknown whether the difference in Comfort score (1) was associated with reduction of local anesthetic (LA) volume in elderly or it is attributed to elderly population by itself. The aim of the study is to compare the Comfort score during US-SCB placement in elderly patients undergoing upper limb surgery performed with two different volumes of local anesthetics (20 ml vs 32 ml).
详细描述
Involutional changes of brachial plexus in elderly, assessed by measuring the cross-sectional area (CSA) of brachial plexus at the first rib, allowed a 35% reduction of LA volume for an effective US-SCB in comparison with the younger patients (2). Ultrasound-guided regional anesthesia becomes an increasingly popular technique and its performance must be as comfortable as possible. Therefore, Comfort score during block placement is extremely important. Comfort Score is consisted of maximum pain intensity (VAS), the satisfaction of the patient and the number of unpleasant events declared by the patients. It is calculated as the sum of each criterion, which was attributed a value of 0 or 1: VAS(<or=30/100, 1; >30/100, 0), number of unpleasant events (0, 1; >or=1, 0) and satisfaction (satisfied or very satisfied, 1; acceptable or unsatisfied, 0). Comfort score of 3 or 2 is considered as comfortable while score 1 or 0 as uncomfortable block placement.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Double (Participant, Outcomes Assessor)
入排标准
- 年龄范围
- 65 Years 至 —（Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •age over 65 years (Elderly group)
- •upper limb surgery
排除标准
- •refusal of regional anesthesia
- •any neurologic or neuromuscular disease
- •clinical signs of cutaneous infection at the site of needle insertion
结局指标
主要结局
Comfort Score
时间窗: Up to average 20 min
An independent observer unaware of the administered LA volume assessed Comfort score by evaluating maximal pain intensity resulting from block placement using a 100-mm visual analogue scale (VAS: 0, no pain-100, maximum or worst imaginable) as well as by recording any unpleasant event during block placement and by recording patient satisfaction using a four-point scale (unsatisfied, acceptable, satisfied and very satisfied).
次要结局
- Block Placement Time(Up to average 20 minutes)
研究者
Jadranka Pavičić Šarić
Principal Investigator
Clinical Hospital Merkur