Local Anesthetic Response in Ehlers-Danlos Syndrome (EDS) and Healthy Volunteers
试验速览
- 阶段
- 4 期
- 状态
- 进行中（未招募）
- 入组人数
- 155
- 试验地点
- 1
- 主要终点
- Delta Pain Scores Lidocaine at 5 min [ Time Frame: 5 minutes post-injection ]
研究概览
简要总结
Local anesthetic resistance is commonly reported by patients with EDS. However, there are no objective data on the occurrence of local anesthetic resistance in EDS patients and in healthy volunteers. The investigators propose to collect such objective data on the frequency of drug resistance and whether any problems with local anesthesia are due to initial ineffectiveness or due to its effects dissipating too soon.
详细描述
There was a prior large online questionnaire to better understand the issues around local anesthetic resistance. By November 2018, 933 EDS patients (total 1059 respondents) completed the survey, 99.2% of which had previously received local anesthetics. Among these patients, 88% reported that they have "had a problem with local anesthetic injection not working adequately or properly," while only 54% of respondents without EDS reported a similar problem. These data suggests that local anesthetic resistance might be more prevalent in patients with EDS than in the general population. If these findings are true, then this might have significant implications for the appropriate management of these patients during minor surgery and dental procedures.
This study aims to assess the frequency and related issues around local anesthetic resistance in EDS patients, including whether the problem is a lack of analgesia or a timing effect (short duration of action or delayed onset of action), and whether the problem relates only to some local anesthetics or whether there is a problem with the whole class of local anesthetics. This study is completing data originally collected during a 2019 EDS conference.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Other
- 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
- •EDS patients, clinically diagnosed hypermobile EDS based on 2017 criteria
- •EDS patients with genetically proven non-hypermobile EDS
- •Healthy participants, no EDS
- •Able and willing to provide informed consent
排除标准
- •Known allergy to Lidocaine
- •Unable to provide informed consent
研究组 & 干预措施
Receiving Local Anesthetic Injection
Patients meeting the diagnostic criteria (2017) for Ehlers-Danlos Syndrome
Healthy control volunteers who do not meet the criteria for Ehlers-Danlos Syndrome
干预措施: 0.9% Sodium Chloride Injection (Drug)
Receiving Local Anesthetic Injection
Patients meeting the diagnostic criteria (2017) for Ehlers-Danlos Syndrome
Healthy control volunteers who do not meet the criteria for Ehlers-Danlos Syndrome
干预措施: Lidocaine Injection 2% (Drug)
结局指标
主要结局
Delta Pain Scores Lidocaine at 5 min [ Time Frame: 5 minutes post-injection ]
时间窗: 5 minutes post-injection
Difference between the pain score at the Lidocaine injection locations (compared to a control location) and the saline injection location (compared to a control location). The pain scale is .a 4 level scale from 0 ("absent sensation"), to 1 ("dull pressure"), to 2 ("sharp but less than a control \[non-injected\] region) to 3 (same or worse than the control region).
次要结局
- Delta Pain Scores Lidocaine at 30 min(30 minutes post-injection)